CN109913078B

CN109913078B - Bio-fiber road sealing material and preparation method thereof

Info

Publication number: CN109913078B
Application number: CN201910198412.3A
Authority: CN
Inventors: 孙晓龙
Original assignee: Guangdong University of Technology
Current assignee: China Railway 17th Bureau Group Guangzhou Construction Co ltd
Priority date: 2019-03-15
Filing date: 2019-03-15
Publication date: 2021-03-30
Anticipated expiration: 2039-03-15
Also published as: CN109913078A

Abstract

The invention belongs to the technical field of road materials, and particularly relates to a bio-fiber road sealing material and a preparation method thereof. The invention provides a biological fiber road sealing material which comprises the following raw materials: cementing agent, curing agent, micro-silica aerogel, soybean protein fiber, bamboo fiber, precipitated calcium carbonate, cuprammonium fiber, PVC resin powder, cellulose acetate, chelating agent, diluent and penetrating agent. According to the invention, through the fusion and combined action of the materials with different components, the improvement of the capability of the biological fiber sealing material on the road surface of bearing vehicle load and the coupling action of the biological fiber sealing material in an extreme temperature environment is realized, and the cracking and performance reduction of the road surface under the condition of extreme temperature are effectively reduced.

Description

Bio-fiber road sealing material and preparation method thereof

Technical Field

The invention belongs to the technical field of road materials, and particularly relates to a bio-fiber road sealing material and a preparation method thereof.

Background

When the external temperature suddenly drops, namely the cooling rate is higher, the asphalt surface layer shrinks along with the temperature drop. The ultimate tensile strength of the asphalt mixture is smaller than the temperature stress generated by the asphalt mixture, and the asphalt pavement is cracked along with the temperature stress. In general, asphalt mixtures have relaxation properties, as do other materials, because the presence of relaxation properties does not allow temperature stresses to build up, which often do not reach the ultimate tensile strength of the asphalt mixture. However, when the external temperature is decreased quickly, the temperature stress increases faster than the stress relaxes, and as the temperature stress increases, the temperature stress is accumulated more and more, and the temperature stress accumulation exceeds the ultimate tensile strength of the asphalt mixture, the asphalt pavement is cracked. Because the low temperature lasts for a long time, the tensile strain rate of the asphalt mixture is very small, and if the adhesion between the asphalt surface layer and the base layer is not good enough, the situation that free shrinkage is likely to occur is easy to crack at low temperature. Such cracks often occur from the road surface, and progress downward from the road surface, and most cracks are formed when a cold flow or cold tide suddenly arrives in the first winter with a rapid decrease in air temperature, and cracks in the road surface are often unpredictably formed and the crack pitches are approximately equal. Another cause of pavement cracking due to temperature is temperature fatigue. The ultimate tensile strain of the asphalt mixture is reduced along with the fatigue effect of repeated temperature rise and fall, the stiffness of the asphalt is increased along with the aging of the asphalt, the stress relaxation performance of the asphalt mixture is reduced, and generally, the temperature generated by temperature fatigue cracks is higher than the temperature generated by cracking caused by one-time temperature reduction. The number of cracks is increasing with increasing road age. Therefore, the reasonable control of the temperature cracking of the asphalt pavement has important significance for prolonging the service life of the asphalt pavement.

Disclosure of Invention

In view of the above, it is an object of the present invention to provide a road sealing material capable of controlling temperature cracking under extreme temperature conditions and absorbing and dissipating external impact loads.

The invention provides a biological fiber road sealing material which comprises the following raw materials: cementing agent, curing agent, micro-silica aerogel, soybean protein fiber, bamboo fiber, precipitated calcium carbonate, cuprammonium fiber, PVC resin powder, cellulose acetate, chelating agent, diluent and penetrating agent.

Preferably, the biological fiber road sealing material comprises the following raw materials in parts by mass: 100 parts of cementing agent, 8-16 parts of curing agent, 3-8 parts of micro-silica aerogel, 2-4 parts of soybean protein fiber, 3-6 parts of bamboo fiber, 6-10 parts of precipitated calcium carbonate, 1-3 parts of cuprammonium fiber, 4-7 parts of PVC resin powder, 1-2 parts of cellulose acetate, 1-3 parts of chelating agent, 6-12 parts of diluent and 2-3 parts of penetrating agent.

Preferably, the biological fiber road sealing material comprises the following raw materials in parts by mass: 100 parts of cementing agent, 12-14 parts of curing agent, 5-7 parts of micro-fine silica aerogel, 3-3.6 parts of soybean protein fiber, 4-5 parts of bamboo fiber, 7-9 parts of precipitated calcium carbonate, 2-2.4 parts of cuprammonium fiber, 5-6 parts of PVC resin powder, 1.4-1.7 parts of cellulose acetate, 1.8-2.4 parts of chelating agent, 8-10 parts of diluent and 2.4-2.7 parts of penetrating agent.

More preferably, the bio-fiber road sealing material comprises the following raw materials in parts by mass: 100 parts of cementing agent, 13 parts of curing agent, 6 parts of micro-silica aerogel, 3.2 parts of soybean protein fiber, 4.4 parts of bamboo fiber, 8 parts of precipitated calcium carbonate, 2.2 parts of cuprammonium fiber, 5.6 parts of PVC resin powder, 1.5 parts of cellulose acetate, 2.2 parts of chelating agent, 9 parts of diluent and 2.5 parts of penetrating agent.

Preferably, the cementing agent is selected from one or more of phenolic resin, complex magnesium aluminum cementing agent and EVA modified binding resin;

the curing agent is selected from one or more of triethanolamine, trimethyl phosphate and isocyanate.

The EVA-modified adhesive resin is an ethylene-vinyl acetate copolymer, that is, an EVA resin.

More preferably, the setting tensile strength of the consolidating agent is greater than 40MPa, and the shear strength of the consolidating agent is greater than 28 MPa.

More preferably, the dipole moment of the curing agent ranges from 10cm3 to 24cm3, and the polarizability of the curing agent ranges from 14.35 to 15.22.

Preferably, the microfine silica aerogel is a hydrophobic silica aerogel; the pore diameter range of the hydrophobic silica aerogel is 20-45 nm, the porosity range of the hydrophobic silica aerogel is 94% -98%, and the specific surface area range of the hydrophobic silica aerogel is 480m²/g～650m²/g。

More preferably, the pore diameter range of the fine silica aerogel is 20-45 nm, the porosity range of the fine silica aerogel is 94% -98%, and the specific surface area range of the fine silica aerogel is 480m²/g～650m²/g。

Preferably, the breaking strength of the soybean protein fiber ranges from 3.6cN/dtex to 4.2cN/dtex, the dry breaking elongation of the soybean protein fiber ranges from 17% to 21%, and the moisture regain of the soybean protein fiber ranges from 8.2% to 8.6%.

More preferably, the breaking strength of the soybean protein fiber ranges from 3.6cN/dtex to 4.2cN/dtex, the dry breaking elongation of the soybean protein fiber ranges from 17% to 21%, and the moisture regain of the soybean protein fiber ranges from 8.2% to 8.6%.

Preferably, the bamboo fiber is selected from one or more of bamboo pulp fiber and bamboo charcoal fiber; the breaking strength range of the bamboo fiber is 2.21 cN/dtex-2.52 cN/dtex, and the fineness range of the bamboo fiber is 5.3 dtex-6.1 dtex.

More preferably, the breaking strength of the bamboo fiber ranges from 2.21cN/dtex to 2.52cN/dtex, and the fineness of the bamboo fiber ranges from 5.3dtex to 6.1 dtex.

Preferably, the precipitated calcium carbonate has a precipitation volume ranging from 2.4mL/g to 2.8mL/g and a specific surface area ranging from 4.3m²/g～5.2m²/g。

Preferably, the fineness of the copper ammonia fiber ranges from 0.68dtex to 1.33dtex, and the official moisture regain of the copper ammonia fiber ranges from 11% to 13%.

Preferably, the fineness of the PVC resin powder is 150 meshes, the volatility range of the PVC resin powder is 0.2-0.6%, and the viscosity number range of the PVC resin powder is 100-120 mL/g; the esterification degree range of the cellulose acetate is 220-230, and the acetyl content of the cellulose acetate is 36.5-38.0%.

More preferably, the fineness of the PVC resin powder is 150 meshes, the volatility range of the PVC resin powder is 0.2% -0.6%, and the viscosity number range of the PVC resin powder is 100-120 mL/g.

The chelating agent is one of sodium metaphosphate, glucono-delta-lactone or stearin oxide, the chelating capacity of the chelating agent is in the range of 1.9mmol/g to 2.2mmol/g, and the insoluble content of the chelating agent is in the range of 0.005% to 0.02%.

The diluent is one of ethyl acetate, acetone or ethanol, the surface tension coefficient range of the diluent is 19.98 mN/m-21.97 mN/m, and the dissociation coefficient range of the diluent is 14.33-15.9.

The penetrating agent is one of fatty alcohol-polyoxyethylene ether JF-1, JF-2 and JF-E, the content range of active ingredients of the penetrating agent is 98.2% -99.6%, and the pH value range of the penetrating agent is 5.5-8.0.

The weight parts can be measured in units of weight such as grams, two, jin, kg, ton, etc.

The invention discloses a preparation method of a biological fiber road sealing material, which comprises the following steps:

step 1, mixing soybean protein fibers, cuprammonium fibers, cellulose acetate and bamboo fibers to obtain a mixture 1;

step 2, mixing the cementing agent, the diluent, the curing agent, the chelating agent and the precipitated calcium carbonate to obtain a mixture 2;

step 3, mixing a penetrating agent, the mixture 1 and the mixture 2 to obtain a mixture 3;

and 4, mixing the micro silica aerogel, the PVC resin powder and the mixture 3 to obtain the bio-fiber road sealing material.

Specifically, the preparation method of the biological fiber road sealing material provided by the invention comprises the following steps:

(1) premixing soybean fibers, cuprammonium fibers, cellulose acetate and bamboo fibers which are weighed in advance, performing mixed cutting by using a fiber cutting machine, uniformly mixing the fibers by using stirring equipment, and putting the fibers into a standby barrel after mixing to obtain a mixture 1;

(2) pre-mixing the cementing agent and the diluent, adding a proper amount of curing agent, chelating agent and light calcium carbonate after stirring for 3-5 minutes by using a handheld stirrer, stirring for 5-8 minutes at high speed by using the handheld stirrer again, and filling the mixed slurry into a clean container for later use after stirring to obtain a mixture 2;

(3) mixing a penetrating agent with the mixture 1, placing the mixture in a mixing pot, stirring the mixture for 15min at the speed of 200-250 rad/min, then pouring the mixture 2 obtained in the step (2) into the mixing pot, and stirring the penetrating agent, the mixture 1 and the mixture 2 for 8-10 min at the speed of 150-200 rad/min to obtain a mixture 3;

(4) and finally, mixing and pre-stirring the micro silicon dioxide aerogel and the PVC resin powder, adding the mixture into a stirring pot, stirring the micro silicon dioxide aerogel, the PVC resin powder and the mixture 3 at the speed of 200rad/min for 3-5 min, and then sieving the mixed slurry by a 0.3mm sieve to finish the preparation process, thereby obtaining the biological fiber road sealing material.

The technical problem to be solved by the present invention is to provide a bio-fiber road sealing material, which is aimed at overcoming the defects of the prior art. The biological fiber road sealing material consists of cementing agent, curing agent, superfine silica aerogel, soybean fiber, bamboo fiber, light calcium carbonate, pearl fiber, cuprammonium fiber, PVC powder, cellulose acetate, chelating agent, diluent and penetrating agent. The reasonable combination of various materials can form an elastic system, and the deformation resistance of the road pavement is effectively improved. In the biological fiber road sealing layer, the micro silicon dioxide aerogel has good elastoplasticity and suspension property and can be well dispersed in a carrier material, while bamboo fibers and copper ammonia fibers can construct a firm elastic fiber frame in the carrier material and form an elastic carrier layer structure of the biological fiber road sealing layer together with the micro silicon dioxide aerogel, the PVC resin can be added to fill the frame pores of the elastomer carrier layer structure to thicken the material property of the elastomer and simultaneously reinforce the overall strength of the elastomer, soybean protein fibers and cellulose acetate can form a spherical fiber system after premixing and treatment and can exist in the elastic carrier in a form, a truss-like combined fiber structure is formed through the connection effect of the bamboo fibers and the copper ammonia fibers, the bearing and dispersing capacity of the biological fiber road sealing layer material to external loads is improved, and the soybean protein fibers, the copper ammonia fibers, the polyvinyl chloride and the polyvinyl chloride are mixed in, When the outside acts on the bio-fiber road sealing material, the mixed fiber-silicon dioxide aerogel mixed bearing structure can disperse the external load through a truss-like structure, and simultaneously, the adverse effect of the load on the road surface under different extreme temperature conditions is relieved through elastic deformation; the precipitated calcium carbonate can be adsorbed in the internal pore structure by the superfine silica aerogel, so that the mechanical strength and the mechanical property of the silica aerogel are greatly enhanced; the addition of the penetrating agent can deepen the mutual penetration between the elastic carrier layer and the composite fiber system, and the chelating agent ensures the integral stability of the elastic sealing layer. Through the fusion and the combined action of the materials with different components, the biological fiber sealing material can improve the capability of the road surface for bearing vehicle load and the coupling action of the road surface in an extreme temperature environment, and effectively reduce the cracking and performance reduction of the road surface under the condition of extreme temperature.

Compared with the prior art, the invention has the following advantages:

(1) the bearing capacity of the road pavement to the external load under the extreme temperature condition is improved through the bearing and dispersion capacity of the biological fiber road sealing material to the external load, and the generation of temperature cracks is controlled.

(2) The biological fiber road sealing material can absorb and disperse impact load of vehicles through elastic deformation, reduce impact effect of wheels on a road surface under special conditions, improve impact resistance of the road surface, and simultaneously can enhance wear resistance of the road surface.

(3) The bio-fiber road sealing material has the advantages of simple preparation process, convenient construction, short open traffic time and good application prospect.

Detailed Description

The invention provides a bio-fiber road sealing material and a preparation method thereof, which are used for overcoming the technical defects in the prior art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The starting materials used in the following examples are all commercially available.

1. The cementing agent is one of phenolic resin, complexing magnesium aluminum cementing agent or EVA modified adhesive resin, and the curing tensile strength and the shearing strength of the cementing agent are respectively more than 40MPa and 28 MPa.

2. The curing agent is one of triethanolamine, trimethyl phosphate or isocyanate, the dipole moment range of the curing agent is 10cm 3-24 cm3, and the polarizability range is 14.35-15.22.

3. The superfine silica aerogel is hydrophobic silica aerogel, the pore diameter range of the superfine silica aerogel is 20-45 nm, the porosity range is 94-98%, and the specific surface area range is 480m 2-650 m 2/g.

4. The breaking strength range of the soybean protein fiber is 3.6 cN/dtex-4.2 cN/dtex, the dry breaking elongation range is 17% -21%, and the moisture regain range is 8.2% -8.6%.

5. The bamboo fiber is one or two of bamboo pulp fiber or bamboo charcoal fiber, the breaking strength range of the bamboo fiber is 2.21 cN/dtex-2.52 cN/dtex, and the fineness range of the bamboo fiber is 5.3 dtex-6.1 dtex.

6. The precipitated calcium carbonate is light calcium carbonate, the precipitation volume range of the precipitated calcium carbonate is 2.4 mL/g-2.8 mL/g, and the specific surface area range of the precipitated calcium carbonate is 4.3m²/g～5.2m²/g。

7. The fineness range of the cuprammonium fibers is 0.68dtex to 1.33dtex, and the official moisture regain range is 11 percent to 13 percent.

8. The PVC resin powder has the fineness of 150 meshes, the volatility range of 0.2-0.6 percent and the viscosity number range of 100-120 mL/g

9. The esterification degree range of the cellulose acetate is 220-230 percent, and the acetyl content of the cellulose acetate is 36.5-38.0 percent

10. The chelating agent is one of sodium metaphosphate, gluconic acid-delta-lactone or oxidized stearin, the chelating capacity ranges from 1.9mmol/g to 2.2mmol/g, and the content of the insoluble matter ranges from 0.005 percent to 0.02 percent.

11. The diluent is one of ethyl acetate, acetone or ethanol, the surface tension coefficient range of the diluent is 19.98 mN/m-21.97 mN/m, and the dissociation coefficient range of the diluent is 14.33-15.9.

12. The penetrating agent is one of fatty alcohol-polyoxyethylene ether JF-1, JF-2 or JF-E, the content range of active ingredients is 98.2-99.6%, and the pH value range is 5.5-8.0.

Example 1

The embodiment of the invention provides a first biological fiber road sealing material which comprises the following components in parts by weight: 100 parts of phenolic resin, 8 parts of triethanolamine, 3 parts of micro-silica aerogel, 2 parts of soybean protein fiber, 3 parts of bamboo pulp fiber, 6 parts of precipitated calcium carbonate, 1 part of cuprammonium fiber, 4 parts of PVC resin powder, 1 part of cellulose acetate, 1 part of sodium metaphosphate, 6 parts of ethyl acetate and 2 parts of fatty alcohol-polyoxyethylene ether JF-1.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of triethanolamine is 14.35; the micro silica aerogel has a pore diameter of 20nm and a specific surface area of 480m²(ii)/g; the breaking strength range of the soybean protein fiber is 3.6 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.21 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.4 mL/g; the fineness range of the copper ammonia fiber is 0.68 dtex; the volatility range of the PVC resin powder is 0.2 percent; acetyl content of cellulose acetate 36.5%; the chelating capacity range of the sodium metaphosphate is 1.9 mmol/g; the surface tension coefficient range of the ethyl acetate is 19.98 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-1 is 98.2 percent.

The application method of the biological fiber road sealing material comprises the following steps:

(1) premixing the pre-weighed soybean protein fiber, cuprammonium fiber, cellulose acetate and bamboo pulp fiber, performing mixed cutting by using a fiber cutting machine, uniformly mixing the fibers by using stirring equipment, and filling the fibers into a standby barrel after the mixing is finished.

(2) The phenolic resin and the ethyl acetate are mixed in advance, after a hand-held stirrer is adopted for stirring for 3 minutes, a proper amount of triethanolamine, sodium metaphosphate and precipitated calcium carbonate are added, the hand-held stirrer is adopted for high-speed stirring for 5 minutes again, and after the stirring is finished, the mixed slurry is filled into a clean container for standby.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-1 with the mixed fiber, placing the mixture into a mixing pot, stirring the mixture for 15min at the speed of 200rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring the mixture for 8min at the speed of 150 rad/min.

(4) And finally, mixing and pre-stirring the micro silicon dioxide aerogel and the PVC resin powder, adding the mixture into a stirring pot, stirring the mixture for 3min at the speed of 200rad/min, and then sieving the mixed slurry by a 0.3mm sieve to finish the preparation process.

Example 2

The embodiment of the invention provides a second biological fiber road sealing material which comprises the following components in parts by weight: 100 parts of phenolic resin, 12 parts of triethanolamine, 5 parts of micro-silica aerogel, 3 parts of soybean protein fiber, 4 parts of bamboo pulp fiber, 7 parts of precipitated calcium carbonate, 2 parts of cuprammonium fiber, 5 parts of PVC resin powder, 1.4 parts of cellulose acetate, 1.8 parts of sodium metaphosphate, 8 parts of ethyl acetate and 12.4 parts of fatty alcohol-polyoxyethylene ether JF-12.4 parts.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of triethanolamine is 14.56; the micro silica aerogel has the pore diameter range of 28nm and the specific surface area range of 524m²(ii)/g; the breaking strength range of the soybean protein fiber is 3.7 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.28 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.5 mL/g; the fineness range of the copper ammonia fiber is 0.79 dtex; the volatility range of the PVC resin powder is 0.3 percent; acetyl content of cellulose acetate 36.9%; the chelating capacity range of the sodium metaphosphate is 2.0 mmol/g; the surface tension coefficient range of the ethyl acetate is 20.09 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-1 is 98.6 percent.

(2) The phenolic resin and the ethyl acetate are premixed, after the mixture is stirred for 4 minutes by a handheld stirrer, a proper amount of triethanolamine, sodium metaphosphate and precipitated calcium carbonate are added, the mixture is stirred for 5-8 minutes at a high speed by the handheld stirrer again, and after the stirring is finished, the mixed slurry is filled into a clean container for later use.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-1 with the mixed fiber, placing the mixture into a mixing pot, stirring the mixture for 15min at the speed of 220rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring the mixture for 9min at the speed of 165 rad/min.

(4) And finally, mixing and pre-stirring the micro silicon dioxide aerogel and the PVC resin powder, adding the mixture into a stirring pot, stirring for 4min at the speed of 200rad/min, and then sieving the mixed slurry by a 0.3mm sieve to finish the preparation process.

Example 3

The embodiment of the invention provides a third biological fiber road sealing material which comprises the following components in parts by weight: 100 parts of phenolic resin, 13 parts of triethanolamine, 6 parts of micro-silica aerogel, 3.2 parts of soybean protein fiber, 4.4 parts of bamboo pulp fiber, 8 parts of precipitated calcium carbonate, 2.2 parts of cuprammonium fiber, 5.6 parts of PVC resin powder, 1.5 parts of cellulose acetate, 2.2 parts of sodium metaphosphate, 9 parts of ethyl acetate and 2.5 parts of fatty alcohol-polyoxyethylene ether JF-1.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of triethanolamine is 14.76; the micro silica aerogel has a pore diameter range of 31nm and a specific surface area range of 570m²(ii)/g; the breaking strength range of the soybean protein fiber is 3.9 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.37 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.6 mL/g; the fineness range of the copper ammonia fiber is 0.87 dtex; the volatility range of the PVC resin powder is 0.4%; acetyl content of cellulose acetate 37.1%; the chelating capacity range of the sodium metaphosphate is 2.1 mmol/g; the surface tension coefficient range of the ethyl acetate is 20.96 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-1 is 99.1 percent.

(2) The phenolic resin and the ethyl acetate are mixed in advance, after a hand-held stirrer is adopted for stirring for 4 minutes, a proper amount of triethanolamine, sodium metaphosphate and precipitated calcium carbonate are added, the hand-held stirrer is adopted for high-speed stirring for 7 minutes, and after the stirring is finished, the mixed slurry is filled into a clean container for standby.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-1 with the mixed fiber, placing the mixture into a mixing pot, stirring the mixture for 15min at the speed of 230rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring the mixture for 9min at the speed of 180 rad/min.

Example 4

The embodiment of the invention provides a fourth bio-fiber road sealing material which comprises the following components in parts by weight: 100 parts of phenolic resin, 14 parts of triethanolamine, 7 parts of micro-silica aerogel, 3.6 parts of soybean protein fiber, 5 parts of bamboo pulp fiber, 9 parts of precipitated calcium carbonate, 2.4 parts of cuprammonium fiber, 6 parts of PVC resin powder, 1.7 parts of cellulose acetate, 2.4 parts of sodium metaphosphate, 10 parts of ethyl acetate and 2.7 parts of fatty alcohol-polyoxyethylene ether JF-1.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of triethanolamine is 15.05; the micro-silica aerogel has the pore diameter range of 40nm and the specific surface area range of 599m²(ii)/g; the breaking strength range of the soybean protein fiber is 4.0 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.45 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.7 mL/g; the fineness range of the copper ammonia fiber is 1.19 dtex; the volatility range of the PVC resin powder is 0.5 percent; acetyl content of cellulose acetate 37.4%; the chelating capacity range of the sodium metaphosphate is 2.1 mmol/g; the surface tension coefficient range of the ethyl acetate is 21.63 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-1 is 99.4 percent.

(2) The phenolic resin and the ethyl acetate are mixed in advance, after the mixture is stirred for 5 minutes by a handheld stirrer, a proper amount of triethanolamine, sodium metaphosphate and precipitated calcium carbonate are added, the mixture is stirred for 8 minutes at a high speed by the handheld stirrer again, and after the stirring is finished, the mixed slurry is filled into a clean container for standby.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-1 with the mixed fiber, placing the mixture into a mixing pot, stirring the mixture for 15min at the speed of 240rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring the mixture for 10min at the speed of 190 rad/min.

(4) And finally, mixing and pre-stirring the micro silicon dioxide aerogel and the PVC resin powder, adding the mixture into a stirring pot, stirring the mixture for 5min at the speed of 200rad/min, and then sieving the mixed slurry by a 0.3mm sieve to finish the preparation process.

Example 5

The embodiment of the invention provides a fifth bio-fiber road sealing material which comprises the following components in parts by weight: 100 parts of phenolic resin, 16 parts of triethanolamine, 8 parts of micro-silica aerogel, 4 parts of soybean protein fiber, 6 parts of bamboo pulp fiber, 10 parts of precipitated calcium carbonate, 3 parts of copper ammonia fiber, 7 parts of PVC resin powder, 2 parts of cellulose acetate, 3 parts of sodium metaphosphate, 12 parts of ethyl acetate and 3 parts of fatty alcohol-polyoxyethylene ether JF-1.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of triethanolamine is 15.22; the micro-silica aerogel has a pore diameter of 45nm and a specific surface area of 650m²(ii)/g; the breaking strength range of the soybean protein fiber is 4.2 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.52 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.8 mL/g; the fineness range of the copper ammonia fiber is 1.33 dtex; the volatility range of the PVC resin powder is 0.6 percent; acetyl content of cellulose acetate 38.0%; process for preparing sodium metaphosphateThe chelating capacity range is 2.2 mmol/g; the surface tension coefficient range of the ethyl acetate is 21.97 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-1 is 99.6 percent.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-1 with the mixed fiber, placing the mixture into a mixing pot, stirring the mixture for 15min at the speed of 250rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring the mixture for 10min at the speed of 200 rad/min.

Example 6

The embodiment of the invention provides a sixth biological fiber road sealing material which comprises the following components in parts by weight: 100 parts of complexing magnesium aluminum cementing agent, 8 parts of trimethyl phosphate, 3 parts of micro-silica aerogel, 2 parts of soybean protein fiber, 3 parts of bamboo charcoal fiber, 6 parts of precipitated calcium carbonate, 1 part of cuprammonium fiber, 4 parts of PVC resin powder, 1 part of cellulose acetate, 1 part of gluconic acid-delta-lactone, 6 parts of acetone and 2 parts of fatty alcohol-polyoxyethylene ether JF-2.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of trimethyl phosphate is 14.35; the micro silica aerogel has a pore diameter of 20nm and a specific surface area of 480m²/g(ii) a The breaking strength range of the soybean protein fiber is 3.6 cN/dtex; the breaking strength range of the bamboo charcoal fiber is 2.21 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.4 mL/g; the fineness range of the copper ammonia fiber is 0.68 dtex; the volatility range of the PVC resin powder is 0.2 percent; acetyl content of cellulose acetate 36.5%; the chelating capacity of glucono-delta-lactone is in the range of 1.9 mmol/g; the surface tension coefficient range of the acetone is 19.98 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-2 is 98.2 percent.

(1) premixing the pre-weighed soybean protein fiber, cuprammonium fiber, cellulose acetate and bamboo charcoal fiber, performing mixed cutting by using a fiber cutting machine, uniformly mixing the fibers by using stirring equipment, and filling the fibers into a standby barrel after mixing.

(2) Premixing the complexing magnesium aluminum cementing agent and acetone, stirring for 3 minutes by using a handheld stirrer, adding a proper amount of trimethyl phosphate, gluconic acid-delta-lactone and precipitated calcium carbonate, stirring for 5 minutes at a high speed by using the handheld stirrer again, and filling the mixed slurry into a clean container for later use after the stirring is finished.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-2 with the mixed fiber, placing the mixture into a mixing pot, stirring the mixture for 15min at the speed of 200rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring the mixture for 8min at the speed of 150 rad/min.

Example 7

The embodiment of the invention provides a seventh biological fiber road sealing material which comprises the following components in parts by weight: 100 parts of complexing magnesium aluminum cementing agent, 12 parts of trimethyl phosphate, 5 parts of micro-silica aerogel, 3 parts of soybean protein fiber, 4 parts of bamboo charcoal fiber, 7 parts of precipitated calcium carbonate, 2 parts of cuprammonium fiber, 5 parts of PVC resin powder, 1.4 parts of cellulose acetate, 1.8 parts of gluconic acid-delta-lactone, 8 parts of acetone and 2.4 parts of fatty alcohol-polyoxyethylene ether JF-2.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of trimethyl phosphate is 14.56; the micro silica aerogel has the pore diameter range of 28nm and the specific surface area range of 524m²(ii)/g; the breaking strength range of the soybean protein fiber is 3.7 cN/dtex; the breaking strength range of the bamboo charcoal fiber is 2.28 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.5 mL/g; the fineness range of the copper ammonia fiber is 0.79 dtex; the volatility range of the PVC resin powder is 0.3 percent; acetyl content of cellulose acetate 36.9%; the chelating capacity of glucono-delta-lactone is in the range of 2.0 mmol/g; the surface tension coefficient range of the acetone is 20.09 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-2 is 98.6 percent.

(2) And pre-mixing the complexing magnesium aluminum cementing agent and acetone, stirring for 4 minutes by using a handheld stirrer, adding a proper amount of trimethyl phosphate, gluconic acid-delta-lactone and precipitated calcium carbonate, stirring for 5-8 minutes at a high speed by using the handheld stirrer again, and filling the mixed slurry into a clean container for later use after stirring.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-2 with the mixed fiber, placing the mixture into a mixing pot, stirring for 15min at the speed of 220rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring for 9min at the speed of 165 rad/min.

Example 8

The embodiment of the invention provides an eighth bio-fiber road sealing material which comprises the following components in parts by weight: 100 parts of complexing magnesium aluminum cementing agent, 13 parts of trimethyl phosphate, 6 parts of micro-silica aerogel, 3.2 parts of soybean protein fiber, 4.4 parts of bamboo charcoal fiber, 8 parts of precipitated calcium carbonate, 2.2 parts of copper ammonia fiber, 5.6 parts of PVC resin powder, 1.5 parts of cellulose acetate, 2.2 parts of gluconic acid-delta-lactone, 9 parts of acetone and 2.5 parts of fatty alcohol-polyoxyethylene ether JF-2.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of trimethyl phosphate is 14.76; the micro silica aerogel has a pore diameter range of 31nm and a specific surface area range of 570m²(ii)/g; the breaking strength range of the soybean protein fiber is 3.9 cN/dtex; the breaking strength range of the bamboo charcoal fiber is 2.37 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.6 mL/g; the fineness range of the copper ammonia fiber is 0.87 dtex; the volatility range of the PVC resin powder is 0.4%; acetyl content of cellulose acetate 37.1%; the chelating capacity of glucono-delta-lactone is in the range of 2.1 mmol/g; the surface tension coefficient range of the acetone is 20.96 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-2 is 99.1 percent.

(2) Premixing the complexing magnesium aluminum cementing agent and acetone, stirring for 4 minutes by using a handheld stirrer, adding a proper amount of trimethyl phosphate, gluconic acid-delta-lactone and precipitated calcium carbonate, stirring for 7 minutes at a high speed by using the handheld stirrer again, and filling the mixed slurry into a clean container for later use after the stirring is finished.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-2 with the mixed fiber, placing the mixture in a mixing pot, stirring for 15min at the speed of 230rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring for 9min at the speed of 180 rad/min.

Example 9

The embodiment of the invention provides a ninth biological fiber road sealing material, which comprises the following components: 100 parts of complexing magnesium aluminum cementing agent, 14 parts of trimethyl phosphate, 7 parts of micro-silica aerogel, 3.6 parts of soybean protein fiber, 5 parts of bamboo charcoal fiber, 9 parts of precipitated calcium carbonate, 2.4 parts of cuprammonium fiber, 6 parts of PVC resin powder, 1.7 parts of cellulose acetate, 2.4 parts of gluconic acid-delta-lactone, 10 parts of acetone and 2.7 parts of fatty alcohol-polyoxyethylene ether JF-2.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of trimethyl phosphate is 15.05; the micro-silica aerogel has the pore diameter range of 40nm and the specific surface area range of 599m²(ii)/g; the breaking strength range of the soybean protein fiber is 4.0 cN/dtex; the breaking strength range of the bamboo charcoal fiber is 2.45 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.7 mL/g; the fineness range of the copper ammonia fiber is 1.19 dtex; the volatility range of the PVC resin powder is 0.5 percent; acetyl content of cellulose acetate 37.4%; the chelating capacity of glucono-delta-lactone is in the range of 2.1 mmol/g; the surface tension coefficient range of the acetone is 21.63 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-2 is 99.4 percent.

(2) Premixing the complexing magnesium aluminum cementing agent and acetone, stirring for 5 minutes by using a handheld stirrer, adding a proper amount of trimethyl phosphate, gluconic acid-delta-lactone and precipitated calcium carbonate, stirring for 8 minutes at a high speed by using the handheld stirrer again, and filling the mixed slurry into a clean container for later use after the stirring is finished.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-2 with the mixed fiber, placing the mixture into a mixing pot, stirring the mixture for 15min at the speed of 240rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring the mixture for 10min at the speed of 190 rad/min.

Example 10

The embodiment of the invention provides a tenth biological fiber road sealing material, which comprises the following components: 100 parts of complexing magnesium aluminum cementing agent, 16 parts of trimethyl phosphate, 8 parts of micro-silica aerogel, 4 parts of soybean protein fiber, 6 parts of bamboo charcoal fiber, 10 parts of precipitated calcium carbonate, 3 parts of cuprammonium fiber, 7 parts of PVC resin powder, 2 parts of cellulose acetate, 3 parts of gluconic acid-delta-lactone, 12 parts of acetone and 3 parts of fatty alcohol-polyoxyethylene ether JF-2.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of trimethyl phosphate is 15.22; the micro-silica aerogel has a pore diameter of 45nm and a specific surface area of 650m²(ii)/g; the breaking strength range of the soybean protein fiber is 4.2 cN/dtex; the breaking strength range of the bamboo charcoal fiber is 2.52 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.8 mL/g; the fineness range of the copper ammonia fiber is 1.33 dtex; the volatility range of the PVC resin powder is 0.6 percent; acetyl content of cellulose acetate 38.0%; the chelating capacity of glucono-delta-lactone is in the range of 2.2 mmol/g; the surface tension coefficient range of the acetone is 21.97 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-2 is 99.6 percent.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-2 with the mixed fiber, placing the mixture into a mixing pot, stirring the mixture for 15min at the speed of 250rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring the mixture for 10min at the speed of 200 rad/min.

Example 11

The embodiment of the invention provides an eleventh bio-fiber road sealing material which comprises the following components in parts by weight: 100 parts of EVA modified adhesive resin, 8 parts of isocyanate, 3 parts of micro silica aerogel, 2 parts of soybean protein fiber, 3 parts of bamboo pulp fiber, 6 parts of precipitated calcium carbonate, 1 part of cuprammonium fiber, 4 parts of PVC resin powder, 1 part of cellulose acetate, 1 part of stearin oxide, 6 parts of ethanol and 2 parts of fatty alcohol-polyoxyethylene ether JF-E.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of the isocyanate was 14.35; the micro silica aerogel has a pore diameter of 20nm and a specific surface area of 480m²(ii)/g; the breaking strength range of the soybean protein fiber is 3.6 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.21 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.4 mL/g; the fineness range of the copper ammonia fiber is 0.68 dtex; the volatility range of the PVC resin powder is 0.2 percent; acetyl content of cellulose acetate 36.5%; the chelating capacity range of the oxidized stearin is 1.9 mmol/g; the surface tension coefficient range of the ethanol is 19.98 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-E is 98.2 percent.

(2) The EVA modified adhesive resin and ethanol are premixed, after being stirred for 3 minutes by a handheld stirrer, a proper amount of isocyanate, oxidized stearin and precipitated calcium carbonate are added, the mixture is stirred for 5 minutes at a high speed by the handheld stirrer again, and after the stirring is finished, the mixed slurry is filled into a clean container for standby.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-E with the mixed fiber, placing the mixture into a mixing pot, stirring the mixture for 15min at the speed of 200rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring the mixture for 8min at the speed of 150 rad/min.

Example 12

The embodiment of the invention provides a twelfth bio-fiber road sealing material which comprises the following components in parts by weight: 100 parts of EVA modified adhesive resin, 12 parts of isocyanate, 5 parts of micro-silica aerogel, 3 parts of soybean protein fiber, 4 parts of bamboo pulp fiber, 7 parts of precipitated calcium carbonate, 2 parts of cuprammonium fiber, 5 parts of PVC resin powder, 1.4 parts of cellulose acetate, 1.8 parts of stearin oxide, 8 parts of ethanol and 2.4 parts of fatty alcohol-polyoxyethylene ether JF-E.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability of the isocyanate ranged from 14.56; the micro silica aerogel has the pore diameter range of 28nm and the specific surface area range of 524m²(ii)/g; the breaking strength range of the soybean protein fiber is 3.7 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.28 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.5 mL/g; the fineness range of the copper ammonia fiber is 0.79 dtex; PVC resinThe volatility range of the powder was 0.3%; acetyl content of cellulose acetate 36.9%; the chelating capacity range of the oxidized stearin is 2.0 mmol/g; the surface tension coefficient range of the ethanol is 20.09 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-E is 98.6 percent.

(2) Premixing EVA modified adhesive resin and ethanol, stirring for 4 minutes by using a handheld stirrer, adding a proper amount of isocyanate, oxidized stearin and precipitated calcium carbonate, stirring for 5-8 minutes at high speed by using the handheld stirrer again, and filling the mixed slurry into a clean container for later use after stirring.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-E with the mixed fiber, placing the mixture into a mixing pot, stirring for 15min at the speed of 220rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring for 9min at the speed of 165 rad/min.

Example 13

The embodiment of the invention provides a thirteenth bio-fiber road sealing material which comprises the following components in parts by weight: 100 parts of EVA modified adhesive resin, 13 parts of isocyanate, 6 parts of micro silica aerogel, 3.2 parts of soybean protein fiber, 4.4 parts of bamboo pulp fiber, 8 parts of precipitated calcium carbonate, 2.2 parts of copper ammonia fiber, 5.6 parts of PVC resin powder, 1.5 parts of cellulose acetate, 2.2 parts of stearin oxide, 9 parts of ethanol and 2.5 parts of fatty alcohol-polyoxyethylene ether JF-E.

The technical indexes of the components of the biological fiber road sealing material are as follows: polarizability range of isocyanateThe circumference is 14.76; the micro silica aerogel has a pore diameter range of 31nm and a specific surface area range of 570m²(ii)/g; the breaking strength range of the soybean protein fiber is 3.9 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.37 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.6 mL/g; the fineness range of the copper ammonia fiber is 0.87 dtex; the volatility range of the PVC resin powder is 0.4%; acetyl content of cellulose acetate 37.1%; the chelating capacity range of the oxidized stearin is 2.1 mmol/g; the surface tension coefficient range of the ethanol is 20.96 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-E is 99.1 percent.

(2) The EVA modified adhesive resin and ethanol are premixed, after being stirred for 4 minutes by a handheld stirrer, a proper amount of isocyanate, oxidized stearin and precipitated calcium carbonate are added, the mixture is stirred for 7 minutes at a high speed by the handheld stirrer again, and after the stirring is finished, the mixed slurry is filled into a clean container for standby.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-E with the mixed fiber, placing the mixture into a mixing pot, stirring for 15min at the speed of 230rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring for 9min at the speed of 180 rad/min.

Example 14

The embodiment of the invention provides a fourteenth bio-fiber road sealing material which comprises the following components in parts by weight: 100 parts of EVA modified adhesive resin, 14 parts of isocyanate, 7 parts of micro silica aerogel, 3.6 parts of soybean protein fiber, 5 parts of bamboo pulp fiber, 9 parts of precipitated calcium carbonate, 2.4 parts of cuprammonium fiber, 6 parts of PVC resin powder, 1.7 parts of cellulose acetate, 2.4 parts of oxidized stearin, 10 parts of ethanol and 2.7 parts of fatty alcohol-polyoxyethylene ether JF-E.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of the isocyanate was 15.05; the micro-silica aerogel has the pore diameter range of 40nm and the specific surface area range of 599m²(ii)/g; the breaking strength range of the soybean protein fiber is 4.0 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.45 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.7 mL/g; the fineness range of the copper ammonia fiber is 1.19 dtex; the volatility range of the PVC resin powder is 0.5 percent; acetyl content of cellulose acetate 37.4%; the chelating capacity range of the oxidized stearin is 2.1 mmol/g; the surface tension coefficient range of the ethanol is 21.63 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-E is 99.4 percent.

(2) The EVA modified adhesive resin and ethanol are premixed, after being stirred for 5 minutes by a handheld stirrer, a proper amount of isocyanate, oxidized stearin and precipitated calcium carbonate are added, the mixture is stirred for 8 minutes at a high speed by the handheld stirrer again, and after the stirring is finished, the mixed slurry is filled into a clean container for standby.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-E with the mixed fiber, placing the mixture into a mixing pot, stirring the mixture for 15min at the speed of 240rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring the mixture for 10min at the speed of 190 rad/min.

Example 15

The embodiment of the invention provides a fifteenth bio-fiber road sealing material which comprises the following components in parts by weight: 100 parts of EVA modified adhesive resin, 16 parts of isocyanate, 8 parts of micro-silica aerogel, 4 parts of soybean protein fiber, 6 parts of bamboo pulp fiber, 10 parts of precipitated calcium carbonate, 3 parts of cuprammonium fiber, 7 parts of PVC resin powder, 2 parts of cellulose acetate, 3 parts of stearin oxide, 12 parts of ethanol and 3 parts of fatty alcohol-polyoxyethylene ether JF-E.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability of the isocyanate ranged from 15.22; the micro-silica aerogel has a pore diameter of 45nm and a specific surface area of 650m²(ii)/g; the breaking strength range of the soybean protein fiber is 4.2 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.52 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.8 mL/g; the fineness range of the copper ammonia fiber is 1.33 dtex; the volatility range of the PVC resin powder is 0.6 percent; acetyl content of cellulose acetate 38.0%; the chelating capacity range of the oxidized stearin is 2.2 mmol/g; the surface tension coefficient range of the ethanol is 21.97 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-E is 99.6 percent.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-E with the mixed fiber, placing the mixture into a mixing pot, stirring the mixture for 15min at the speed of 250rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, and stirring the mixture for 10min at the speed of 200 rad/min.

Example 16

The embodiment of the invention provides a sixteenth biological fiber road sealing material which comprises the following components in parts by weight: 100 parts of phenolic resin, 13 parts of isocyanate, 6 parts of micro silica aerogel, 3.2 parts of soybean protein fiber, 4.4 parts of bamboo charcoal fiber, 8 parts of precipitated calcium carbonate, 2.2 parts of cuprammonium fiber, 5.6 parts of PVC resin powder, 1.5 parts of cellulose acetate, 2.2 parts of sodium metaphosphate, 9 parts of acetone and 2.5 parts of fatty alcohol-polyoxyethylene ether JF-2.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability of the isocyanate ranged from 14.76; the micro silica aerogel has a pore diameter range of 31nm and a specific surface area range of 570m²(ii)/g; the breaking strength range of the soybean protein fiber is 3.9 cN/dtex; the breaking strength range of the bamboo charcoal fiber is 2.37 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.6 mL/g; the fineness range of the copper ammonia fiber is 0.87 dtex; the volatility range of the PVC resin powder is 0.4%; acetyl content of cellulose acetate 37.1%; the chelating capacity range of the sodium metaphosphate is 2.1 mmol/g; the surface tension coefficient range of the acetone is 20.96 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-2 is 99.1 percent.

(2) The phenolic resin and the acetone are mixed in advance, after the mixture is stirred for 4 minutes by a handheld stirrer, a proper amount of isocyanate, sodium metaphosphate and precipitated calcium carbonate are added, the mixture is stirred for 7 minutes at a high speed by the handheld stirrer again, and after the stirring is finished, the mixed slurry is filled into a clean container for standby.

Example 17

The embodiment of the invention provides a seventeenth biological fiber road sealing material which comprises the following components in parts by weight: 100 parts of EVA modified adhesive resin, 13 parts of trimethyl phosphate, 6 parts of micro-fine silica aerogel, 3.2 parts of soybean protein fiber, 4.4 parts of bamboo pulp fiber, 8 parts of precipitated calcium carbonate, 2.2 parts of copper ammonia fiber, 5.6 parts of PVC resin powder, 1.5 parts of cellulose acetate, 2.2 parts of gluconic acid-delta-lactone, 9 parts of ethyl acetate and 2.5 parts of fatty alcohol-polyoxyethylene ether JF-E.

The technical indexes of the components of the biological fiber road sealing material are as follows: the polarizability range of trimethyl phosphate is 14.76; the micro silica aerogel has a pore diameter range of 31nm and a specific surface area range of 570m²(ii)/g; the breaking strength range of the soybean protein fiber is 3.9 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.37 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.6 mL/g; the fineness range of the copper ammonia fiber is 0.87 dtex; the volatility range of the PVC resin powder is 0.4%; acetyl content of cellulose acetate 37.1%; the chelating capacity of glucono-delta-lactone is in the range of 2.1 mmol/g; the surface tension coefficient range of the ethyl acetate is 20.96 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-E is 99.1 percent.

(2) Premixing EVA modified adhesive resin and ethyl acetate, stirring for 4 minutes by using a handheld stirrer, adding a proper amount of trimethyl phosphate, glucono-delta-lactone and precipitated calcium carbonate, stirring for 7 minutes at high speed by using the handheld stirrer again, and filling the mixed slurry into a clean container for later use after the stirring is finished.

Comparative example 1

The invention provides a first comparative example of a road sealing material, which comprises the following components in parts by mass: 100 parts of EVA modified adhesive resin, 13 parts of trimethyl phosphate, 3.2 parts of soybean protein fiber, 4.4 parts of bamboo pulp fiber, 8 parts of precipitated calcium carbonate, 2.2 parts of cuprammonium fiber, 5.6 parts of PVC resin powder, 1.5 parts of cellulose acetate, 2.2 parts of gluconic acid-delta-lactone, 9 parts of ethyl acetate and 2.5 parts of fatty alcohol-polyoxyethylene ether JF-E.

The technical indexes of the road sealing material composition are as follows: the polarizability range of trimethyl phosphate is 14.76; the breaking strength range of the soybean protein fiber is 3.9 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.37 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.6 mL/g; the fineness range of the copper ammonia fiber is 0.87 dtex; the volatility range of the PVC resin powder is 0.4%; acetyl content of cellulose acetate 37.1%; the chelating capacity of glucono-delta-lactone is in the range of 2.1 mmol/g; the surface tension coefficient range of the ethyl acetate is 20.96 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-E is 99.1 percent.

The application method of the road sealing material comprises the following steps:

(4) And finally, adding PVC resin powder into a stirring pot, stirring for 4min at the speed of 200rad/min, and then sieving the mixed slurry by a 0.3mm sieve to finish the preparation process.

Comparative example 2

The invention provides a comparative example of a second road sealing material, which comprises the following components in parts by mass: 100 parts of EVA modified adhesive resin, 13 parts of trimethyl phosphate, 6 parts of micro-fine silica aerogel, 8 parts of precipitated calcium carbonate, 2.2 parts of copper ammonia fiber, 5.6 parts of PVC resin powder, 1.5 parts of cellulose acetate, 2.2 parts of gluconic acid-delta-lactone, 9 parts of ethyl acetate and 2.5 parts of fatty alcohol-polyoxyethylene ether JF-E.

The technical indexes of the road sealing material composition are as follows: the polarizability range of trimethyl phosphate is 14.76; the micro silica aerogel has a pore diameter range of 31nm and a specific surface area range of 570m²(ii)/g; the precipitation volume range of the precipitated calcium carbonate is 2.6 mL/g; the fineness range of the copper ammonia fiber is 0.87 dtex; the volatility range of the PVC resin powder is 0.4%; acetyl content of cellulose acetate 37.1%; the chelating capacity of glucono-delta-lactone is in the range of 2.1 mmol/g; the surface tension coefficient range of the ethyl acetate is 20.96 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-E is 99.1 percent。

(1) pre-mixing the pre-weighed copper ammonia fiber and cellulose acetate, performing mixed cutting by using a fiber cutting machine, uniformly mixing the fibers by using stirring equipment, and filling the fibers into a standby barrel after the mixing is finished.

Comparative example 3

The invention provides a third comparative example of a road sealing material, which comprises the following components in parts by mass: 100 parts of EVA modified adhesive resin, 13 parts of trimethyl phosphate, 6 parts of micro-fine silica aerogel, 3.2 parts of soybean protein fiber, 4.4 parts of bamboo pulp fiber, 8 parts of precipitated calcium carbonate, 5.6 parts of PVC resin powder, 2.2 parts of gluconic acid-delta-lactone, 9 parts of ethyl acetate and 2.5 parts of fatty alcohol-polyoxyethylene ether JF-E.

The technical indexes of the road sealing material composition are as follows: the polarizability range of trimethyl phosphate is 14.76; the micro silica aerogel has a pore diameter range of 31nm and a specific surface area range of 570m²(ii)/g; the breaking strength range of the soybean protein fiber is 3.9 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.37 cN/dtex; the precipitation volume range of the precipitated calcium carbonate is 2.6 mL/g; the volatility range of the PVC resin powder is 0.4%; chelating capacity of glucono-delta-lactoneIn the range of 2.1 mmol/g; the surface tension coefficient range of the ethyl acetate is 20.96 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-E is 99.1 percent.

(1) premixing the pre-weighed soybean protein fibers and bamboo pulp fibers, performing mixed cutting by using a fiber cutting machine, uniformly mixing the fibers by using stirring equipment, and filling the fibers into a standby barrel after the mixing is finished.

Comparative example 4

The invention provides a fourth comparative example of a road sealing material, which comprises the following components in parts by mass: 100 parts of EVA modified adhesive resin, 13 parts of trimethyl phosphate, 6 parts of micro-fine silica aerogel, 3.2 parts of soybean protein fiber, 4.4 parts of bamboo pulp fiber, 2.2 parts of cuprammonium fiber, 1.5 parts of cellulose acetate, 2.2 parts of gluconic acid-delta-lactone, 9 parts of ethyl acetate and 2.5 parts of fatty alcohol-polyoxyethylene ether JF-E.

The technical indexes of the road sealing material composition are as follows: the polarizability range of trimethyl phosphate is 14.76; the micro silica aerogel has a pore diameter range of 31nm and a specific surface area range of 570m²(ii)/g; the breaking strength range of the soybean protein fiber is 3.9 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.37 cN/dtex; the fineness range of the copper ammonia fiber is 0.87 dtex; acetyl content of cellulose acetate 37.1%; the chelating capacity of glucono-delta-lactone is in the range of 2.1 mmol/g; the surface tension coefficient range of the ethyl acetate is 20.96 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-E is 99.1 percent.

(2) Premixing EVA modified adhesive resin and ethyl acetate, stirring for 4 minutes by using a handheld stirrer, adding a proper amount of trimethyl phosphate and glucono-delta-lactone, stirring for 7 minutes at high speed by using the handheld stirrer again, and filling the mixed slurry into a clean container for later use after the stirring is finished.

(4) And finally adding the micro silica aerogel into a stirring pot, stirring for 4min at the speed of 200rad/min, and then sieving the mixed slurry by a 0.3mm sieve to finish the preparation process.

Comparative example 5

The invention provides a fifth comparative example of a road sealing layer material, which comprises the following components in parts by mass: 100 parts of EVA modified adhesive resin, 13 parts of trimethyl phosphate, 6 parts of micro-fine silica aerogel, 8 parts of precipitated calcium carbonate, 5.6 parts of PVC resin powder, 2.2 parts of gluconic acid-delta-lactone, 9 parts of ethyl acetate and 2.5 parts of fatty alcohol-polyoxyethylene ether JF-E.

The technical indexes of the road sealing material composition are as follows: the polarizability range of trimethyl phosphate is 14.76; the aperture range of the micro silica aerogel is 31nm, and the specific surface area range is 570m 2/g; the precipitation volume range of the precipitated calcium carbonate is 2.6 mL/g; the volatility range of the PVC resin powder is 0.4%; the chelating capacity of glucono-delta-lactone is in the range of 2.1 mmol/g; the surface tension coefficient range of the ethyl acetate is 20.96 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-E is 99.1 percent.

(1) premixing EVA modified adhesive resin and ethyl acetate, stirring for 4 minutes by using a handheld stirrer, adding a proper amount of trimethyl phosphate, glucono-delta-lactone and precipitated calcium carbonate, stirring for 7 minutes at high speed by using the handheld stirrer again, and filling the mixed slurry into a clean container for later use after the stirring is finished.

(2) And finally, mixing and pre-stirring the micro silicon dioxide aerogel, the fatty alcohol-polyoxyethylene ether JF-E and the PVC resin powder, adding the mixture into a stirring pot, stirring at the speed of 200rad/min for 4min, and sieving the mixed slurry by a 0.3mm sieve to finish the preparation process.

Comparative example 6

The invention provides a sixth comparative example of a road sealing layer material, which comprises the following components in parts by mass: 100 parts of EVA modified adhesive resin, 13 parts of trimethyl phosphate, 3.2 parts of soybean protein fiber, 4.4 parts of bamboo pulp fiber, 2.2 parts of cuprammonium fiber, 1.5 parts of cellulose acetate, 2.2 parts of gluconic acid-delta-lactone, 9 parts of ethyl acetate and 2.5 parts of fatty alcohol-polyoxyethylene ether JF-E.

The technical indexes of the road sealing material composition are as follows: the polarizability range of trimethyl phosphate is 14.76; the breaking strength range of the soybean protein fiber is 3.9 cN/dtex; the breaking strength range of the bamboo pulp fiber is 2.37 cN/dtex; the fineness range of the copper ammonia fiber is 0.87 dtex; acetyl content of cellulose acetate 37.1%; the chelating capacity of glucono-delta-lactone is in the range of 2.1 mmol/g; the surface tension coefficient range of the ethyl acetate is 20.96 mN/m; the content range of the active ingredient of the fatty alcohol-polyoxyethylene ether JF-E is 99.1 percent.

(3) Mixing fatty alcohol-polyoxyethylene ether JF-E with the mixed fiber, placing the mixture into a mixing pot, stirring for 15min at the speed of 230rad/min, then pouring the mixed slurry obtained in the step (2) into the mixing pot, stirring for 9min at the speed of 200rad/min, and finally sieving the mixed slurry through a 0.3mm sieve to finish the preparation process.

The results of the performance tests of the materials of examples 1 to 18 and comparative example 6 are shown in tables 1 and 2 below.

TABLE 1 Performance test results for the bio-fiber road-sealing materials of examples 1-12

TABLE 2 Performance test results for the bio-fiber road-sealing materials of examples 13-18 and the road-sealing materials of comparative examples 1-6

Remarking: the test piece adopts a track plate test piece with the size of 30cm multiplied by 5cm, the track plate adopts SBS modified asphalt, basalt aggregate and limestone mineral powder and adopts AC-13 gradation; coating the material on the surface of a rut plate test piece with the coating thickness of 0.5kg/m²Then, various performance tests are carried out.

In summary, from the above table 1 and table 2, it can be seen that, when the bio-fiber road sealing material of the present invention is applied to a road surface, the deformation resistance and the load-bearing capacity of the road surface can be significantly improved, and the surface condition of the road surface can be improved, the water sealing performance of the road surface can be improved, and the bio-fiber road sealing material has good effects on the performance improvement and the surface condition recovery of an asphalt road surface. The comparative examples lack one or more of microsilica aerogel, soy protein fiber, bamboo pulp fiber, precipitated calcium carbonate, cuprammonium fiber, cellulose acetate or PVC resin powder, respectively, which adversely affect the performance of the road-sealing material.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The bio-fiber road sealing material is characterized by comprising the following raw materials: cementing agent, curing agent, micro-silica aerogel, soybean protein fiber, bamboo fiber, precipitated calcium carbonate, cuprammonium fiber, PVC resin powder, cellulose acetate, chelating agent, diluent and penetrating agent; the biological fiber road sealing material comprises the following raw materials in parts by mass: 100 parts of cementing agent, 8-16 parts of curing agent, 3-8 parts of micro-silica aerogel, 2-4 parts of soybean protein fiber, 3-6 parts of bamboo fiber, 6-10 parts of precipitated calcium carbonate, 1-3 parts of cuprammonium fiber, 4-7 parts of PVC resin powder, 1-2 parts of cellulose acetate, 1-3 parts of chelating agent, 6-12 parts of diluent and 2-3 parts of penetrating agent; the cementing agent is selected from one or more of phenolic resin, complex magnesium aluminum cementing agent and EVA modified binding resin;

the curing agent is selected from triethanolamine and/or isocyanate.

2. The bio-fiber road sealing material of claim 1, wherein the bio-fiber road sealing material comprises the following raw materials by mass: 100 parts of cementing agent, 12-14 parts of curing agent, 5-7 parts of micro-fine silica aerogel, 3-3.6 parts of soybean protein fiber, 4-5 parts of bamboo fiber, 7-9 parts of precipitated calcium carbonate, 2-2.4 parts of cuprammonium fiber, 5-6 parts of PVC resin powder, 1.4-1.7 parts of cellulose acetate, 1.8-2.4 parts of chelating agent, 8-10 parts of diluent and 2.4-2.7 parts of penetrating agent.

3. The biofiber road sealing material of any one of claims 1 to 2, wherein the microfine silica aerogel is a hydrophobic silica aerogel; the pore diameter range of the hydrophobic silica aerogel is 20-45 nm, the porosity range of the hydrophobic silica aerogel is 94% -98%, and the specific surface area range of the hydrophobic silica aerogel is 480m²/g~650 m²/g。

4. The biofiber pavement sealing material of any one of claims 1-2, wherein the breaking strength of the soybean protein fibers ranges from 3.6cN/dtex to 4.2cN/dtex, the dry breaking elongation of the soybean protein fibers ranges from 17% to 21%, and the moisture regain of the soybean protein fibers ranges from 8.2% to 8.6%.

5. The bio-fiber road sealing material according to any one of claims 1 to 2, wherein the bamboo fiber is selected from one or more of bamboo pulp fiber and bamboo charcoal fiber; the breaking strength range of the bamboo fibers is 2.21 cN/dtex-2.52 cN/dtex, and the fineness range of the bamboo fibers is 5.3 dtex-6.1 dtex.

6. The bio-fiber road sealing material as claimed in any one of claims 1 to 2, wherein the fineness of the copper ammonia fiber is in the range of 0.68dtex to 1.33dtex, and the official moisture regain of the copper ammonia fiber is in the range of 11% to 13%.

7. The biofiber road sealing material of any one of claims 1 to 2, wherein the precipitated calcium carbonate has a precipitation volume ranging from 2.4mL/g to 2.8mL/g and a specific surface area ranging from 4.3m²/g ~5.2m²(ii)/g; the fineness of the PVC resin powder is 150 meshes, the volatility range of the PVC resin powder is 0.2-0.6%, and the viscosity number of the PVC resin powderThe range is 100-120 mL/g; the esterification degree range of the cellulose acetate is 220-230, and the acetyl content of the cellulose acetate is 36.5% -38.0%.

8. The method for preparing the bio-fiber road sealing material according to any one of claims 1 to 7, comprising the steps of: