CN109760172A - A kind of preparation method of hydrophobic wood - Google Patents
A kind of preparation method of hydrophobic wood Download PDFInfo
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- CN109760172A CN109760172A CN201910127082.9A CN201910127082A CN109760172A CN 109760172 A CN109760172 A CN 109760172A CN 201910127082 A CN201910127082 A CN 201910127082A CN 109760172 A CN109760172 A CN 109760172A
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Abstract
The present invention relates to a kind of preparation methods of hydrophobic wood, belong to timber preparation technical field.The present invention is by poplar timber, reed straw is impregnated through persalt, high-temperature high-voltage reaction, rupture the Chemical bonding in timber and stalk between each molecule, timber simultaneously, each fiber molecule surface is decomposed in reed rod, generate a large amount of hydroxyl, carboxylic group, to adsorb bonding aluminium ion, titanium ion, subsequent reaction makes aluminium ion, titanium ion generates corresponding metal oxide, the present invention introduces tetraethyl orthosilicate into timber, by reacting with ammonia water, silicon dioxide molecules are embedded between molecule each in wood microstructure, not only improve the hydrophobic performance of timber, also reinforce the rigidity and intensity of timber simultaneously, a large amount of aluminium oxide and titanium oxide are bonded on timber molecule and fiber, wood surface is set to form micro-rough shape, it is difficult to adhere to after making hydrone contact timber, and then form hydrophobic interfaces, it is answered with wide Use prospect.
Description
Technical field
The present invention relates to a kind of preparation methods of hydrophobic wood, belong to timber preparation technical field.
Background technique
Timber is mainly the high molecular material being made of cellulose, hemicellulose and lignin, due to the group of timber itself
Texture is made, and so that timber is had the characteristic of moisture expantion, causes the defect of wood dimensional stability difference in some environments.Improve ruler
The approach of very little stability has very much, such as: outer surface brushing waterproof material；With swelling agent dunnage board cell wall；It is smaller with polarity
Group replace wood-cellulose and lignin on hydroxyl, so that wood chemical compositions is changed；In the structure of timber composition
Carry out being chemically crosslinked between unit etc..But the whole hydrophobic method of existing raising timber, the fibre being only through in AKD and timber
Dimension element chemically reacts, and has hydrophobicity on timber inner cell wall, so that it is certain to have wood surface and wood internal
Hydrophobic property.And in wood cell wall, there is the gap between crystallite, microfibril and fibril to constitute the microcapillary of timber
System, the water suction and desorption of microcapillary system can cause the contraction and expansion of wood cell wall, so cause timber size and
Volume changes.Hydrophobic of raising is only so reducing to dissociate hydroxyl value amount on cell wall and reduce cell wall internal clearance
This place.
Timber is widely applied in daily life as ancient and young green material, as wooden frame structure,
Wooden boat, woodcarving etc..Timber is mainly made of cellulose, hemicellulose, lignin etc., and cellulose, hemicellulose are rich in having
The groups such as strongly hygroscopic hydroxyl, therefore timber has very strong water imbibition, leads to its perishable, poor dimensional stability.Timber
These properties make the service life of timber by the restriction of many environmental factors, such as wet air, acid rain.Timber is super
Hydrophobic treatment assigns the multiple functions such as wood surface waterproof, antifouling, automatically cleaning, antibacterial, will widen timber in production and life
Application range, the service life of prolonging wood receives the extensive concern of scholars.So far, the super-hydrophobic processing of timber
Generally in two steps, the first step constructs micro/nano level coarse structure in wood surface to method, and second step is modified low on coarse structure
Surface energy substance.
In recent years, by the enlightenment of " lotus leaf effect ", a series of grind has been carried out for super-hydrophobic timber technology of preparing both at home and abroad
Study carefully and explore, main Research Thinking is to introduce inorganic nano coarse structure in wood surface and modify low-surface energy substance.Although
Sol-gel method, hydro-thermal method, LBL self-assembly method, plasma technique etc. are successfully applied to the preparation of super-hydrophobic timber, but
Still there are many unsolved technical bottlenecks to limit the practical application of super-hydrophobic timber.Firstly, super hydrophobic surface is fine coarse
Structure it is more fragile and with wood surface is more difficult is closely connect by chemical bond, be easy by processing and use process impact,
Friction etc. mechanisms and damage, make its lose ultra-hydrophobicity；Secondly, inevitable in the use process of super-hydrophobic timber open air
The effect that will receive solar ultraviolet light radiation, rain erosion and Biological decay keeps super-hydrophobic coat failure hydrophobic to lose
And self-cleaning property；In addition, super hydrophobic surface contact low-energy liquid (such as ethylene glycol, coffee, cola) can also make surface because
Hydrophobic ability is lost by organic contamination.
Therefore, inventing the hydrophobic wood that a kind of hydrophobicity is good and mechanical strength is high is to have very much to timber preparation technical field
It is necessary.
Summary of the invention
The technical problems to be solved by the invention: lead to timber for current timber hydrophobic performance is bad, mechanical strength is poor
Easily rupturable, fracture defect, provides a kind of preparation method of hydrophobic wood.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of hydrophobic wood the preparation method comprises the following steps:
Weigh modified emulsion, in gelatin, urea, borax and cellulose investment reaction kettle, reactor temperature is increased to 130~
150 DEG C, 70~80min is mixed with the revolving speed of 200~300r/min with agitating device, material is put into mold after stirring
In, mold is placed in hot press, compacting pressure be 16~20MPa, temperature be 110~120 DEG C under conditions of compacting 2~
3h is put into baking oven after compacting, and dry 12~14h is under conditions of temperature is 70~80 DEG C up to hydrophobic wood；
Modified emulsion the preparation method comprises the following steps:
(1) it weighs in blend, tetraethyl orthosilicate, propanedione, n-butanol and stearic acid investment beaker, places the beaker resistance
In heating mantle, resistance heating sleeving temperature is increased to 60~70 DEG C, 80~100min is stirred with blender constant temperature and mixed emulsion is made；
(2) ammonium hydroxide that mass fraction is 16~20% is added dropwise into beaker, magnetic force ball is added while dropwise addition into beaker, and
It is mixed with the revolving speed of 200~250r/min, continue to be mixed 50 after completion of dropwise addition with the revolving speed of 200~250r/min~
Modified emulsion is made in 60min；
Blend the preparation method comprises the following steps:
(1) it will be pulverized and mixed obtained mixture in poplar sawdust and reed rod investment pulverizer, is by mixture and mass fraction
In 10~12% hydrochloric acid investment beaker, 2~3h is mixed with the revolving speed of 300~400r/min with blender under room temperature and is made
Mixed serum；
(2) by mixed serum and aluminium chloride investment reaction kettle, closed reactor is filled with nitrogen into reaction kettle, increases in kettle
Air pressure raises simultaneously temperature in the kettle to 160~180 DEG C, constant temperature and pressure reacts 100~120min and is made anti-to 1.6~1.8MPa
Answer slurries；
(3) reacting slurry is placed in a vacuum drying oven, under conditions of temperature is 75~85 DEG C, vacuum degree is 100~200Pa
It is dried in vacuo 12~14h, ground 50 mesh obtains sieving after drying, in mass ratio with titanium tetrachloride powder by sieving
20:1 puts into blender and mixing and blend is uniformly made.
According to parts by weight, 23~25 parts of modified emulsion, 10~12 parts of gelatin, 1~3 part of urea, 2~3 parts of borax, fiber
0.6~1.0 part of element.
In the preparation method of modified emulsion according to parts by weight, blend is 8~10 parts, tetraethyl orthosilicate is 2~4
Part, propanedione are 3~5 parts, n-butanol is 12~14 parts, stearic acid is 1~2 part.
The mass fraction being added dropwise in the preparation method of modified emulsion into beaker is that the quality of 16~20% ammonium hydroxide is mixing cream
The 12~16% of liquid quality.
The mass ratio of poplar sawdust and reed rod is 5:1 in the preparation method of blend.
The mass ratio for the hydrochloric acid that mixture and mass fraction are 10~12% in the preparation method of blend is 1:5.
The mass ratio of mixed serum and aluminium chloride is 20:1 in the preparation method of blend.
The mass ratio of sieving and titanium tetrachloride powder is 20:1 in the preparation method of blend.
The method have the benefit that:
(1) poplar sawdust is blended with reed stalk crushing first by the present invention, and hydrochloric acid soaking and stirring is used after blending, chlorine is added after stirring
Change aluminium and carry out the obtained reacting slurry of high-temperature high-voltage reaction, then is mixed to get by reacting slurry drying and grinding and with titanium tetrachloride powder
Blend then stirs blend and tetraethyl orthosilicate, propanedione and other auxiliary agent Hybrid Heatings, after stirring thereto
Ammonium hydroxide is added dropwise, stirs and modified emulsion is made, finally modified emulsion, gelatin and other reagents are mixed, hot pressing drying is
Hydrophobic wood is obtained, poplar timber, reed straw through persalt immersion and high-temperature high-voltage reaction, are made timber and stalk by the present invention
In the bond energys such as hydrogen bond, covalent bond between each molecule destroy, isolate the ingredients such as plant fiber, cellulose, lignin, while wood
Each organic principle part in material, reed rod is decomposed, and generates the free radicals group such as a large amount of hydroxyl, carboxyl, to be conducive to inhale
Attached bonding aluminium ion, titanium ion, while the bond energys such as hydrogen bond, covalent bond are formed between these free radicals, make to be formed between each fiber
The space structure being crosslinked mutually reinforces the rigidity and intensity of timber, and it is respectively corresponding that subsequent reaction generates aluminium ion, titanium ion
Metal oxide, so that aluminium oxide and titanium oxide is generated nano-scale particle and grown on organic fiber surface, and be filled in plant fibre
It ties up in pipe, to improve the mechanical strength of organic fiber, makes each fiber molecule, the mechanical property enhancing in timber molecule, improve
The mechanical strength of timber improves the wearability, toughness and shock resistance of timber comprehensively, simultaneous oxidation aluminium and titanium oxide one
Degree cladding organic molecule, and the high-densit space structure that binding fiber generates are determined, to improve the infiltration energy of timber
And hydrophobic performance；
(2) present invention tetraethyl orthosilicate is introduced into timber, by reacting with ammonia water, in wood microstructure each molecule it
Between be embedded in silicon dioxide molecules, not only improve timber hydrophobic performance, while also reinforce timber rigidity and intensity, timber molecule
With a large amount of aluminium oxide and titanium oxide are bonded on fiber, enhance the degree of roughness of each molecular surface of timber, to make timber
Surface forms micro-rough shape, is difficult to adhere to after making hydrone contact timber, and then forms hydrophobic interfaces, has wide application
Prospect.
Specific embodiment
It will be pulverized and mixed obtained mixture in poplar sawdust and reed rod 5:1 in mass ratio investment pulverizer, by mixture
The hydrochloric acid 1:5 in mass ratio for being 10~12% with mass fraction is put into beaker, with blender with 300~400r/min under room temperature
Revolving speed be mixed 2~3h be made mixed serum；Above-mentioned mixed serum and aluminium chloride 20:1 in mass ratio are put into reaction kettle
In, closed reactor is filled with nitrogen into reaction kettle, increases air pressure in kettle and raises simultaneously temperature in the kettle extremely to 1.6~1.8MPa
160~180 DEG C, constant temperature and pressure reacts 100~120min and reacting slurry is made；Above-mentioned reacting slurry is placed in vacuum oven
In, 12~14h is dried in vacuo under conditions of temperature is 75~85 DEG C, vacuum degree is 100~200Pa, ground 50 after drying
Mesh obtains sieving, and sieving is uniformly made with titanium tetrachloride powder 20:1 in mass ratio investment blender and mixing and is blended
Object；According to parts by weight, 8~10 parts of blends described above, 2~4 parts of tetraethyl orthosilicates, 3~5 parts of propanedione, 12~14 are weighed
In part n-butanol and 1~2 part of stearic acid investment beaker, places the beaker in resistance heating set, increase resistance heating sleeving temperature extremely
60~70 DEG C, 80~100min is stirred with blender constant temperature, mixed emulsion is made；Mixed emulsion quality is added dropwise into above-mentioned beaker
The ammonium hydroxide that 12~16% mass fraction is 16~20%, is added magnetic force ball while dropwise addition into beaker, and with 200~
The revolving speed of 250r/min is mixed, and continues that 50~60min system is mixed with the revolving speed of 200~250r/min after completion of dropwise addition
Obtain modified emulsion；According to parts by weight, 23~25 parts of above-mentioned modified emulsions, 10~12 parts of gelatin, 1~3 part of urea, 2~3 are weighed
In part borax and 0.6~1.0 part of cellulose investment reaction kettle, reactor temperature is increased to 130~150 DEG C, is filled with stirring
It sets and 70~80min is mixed with the revolving speed of 200~300r/min, material is put into mold after stirring, mold is placed in heat
It is 16~20MPa in compacting pressure, temperature suppresses 2~3h under conditions of being 110~120 DEG C, puts into baking oven after compacting in press
In, dry 12~14h is under conditions of temperature is 70~80 DEG C up to hydrophobic wood.
The preparation of blend: it is made mixed for being pulverized and mixed in poplar sawdust and reed rod 5:1 in mass ratio investment pulverizer
Object is closed, the hydrochloric acid 1:5 in mass ratio that mixture and mass fraction are 10% is put into beaker, with blender with 300r/ under room temperature
The revolving speed of min is mixed 2h and mixed serum is made；
By in above-mentioned mixed serum and aluminium chloride 20:1 in mass ratio investment reaction kettle, closed reactor is filled with into reaction kettle
Nitrogen increases air pressure in kettle and raises simultaneously temperature in the kettle to 160 DEG C, constant temperature and pressure reacts 100min and reaction is made to 1.6MPa
Slurries；
Above-mentioned reacting slurry is placed in a vacuum drying oven, is dried in vacuo under conditions of temperature is 75 DEG C, vacuum degree is 100Pa
12h, ground 50 mesh obtains sieving after drying, and sieving and titanium tetrachloride powder 20:1 in mass ratio are put into blender
In be uniformly mixed obtained blend.
The preparation of modified emulsion: according to parts by weight, 8 parts of blends described above, 2 parts of tetraethyl orthosilicates, 3 parts the third two are weighed
In ketone, 12 parts of n-butanols and 1 part of stearic acid investment beaker, places the beaker in resistance heating set, increase resistance heating sleeving temperature
To 60 DEG C, mixed emulsion is made with blender constant temperature stirring 80min；
The ammonium hydroxide that the mass fraction of mixed emulsion quality 12% is 16% is added dropwise into above-mentioned beaker, while dropwise addition into beaker plus
Enter magnetic force ball, and with the mixing of the revolving speed of 200r/min, continues to be mixed with the revolving speed of 200r/min after completion of dropwise addition
Modified emulsion is made in 50min.
The preparation of hydrophobic wood: according to parts by weight, 23 parts of above-mentioned modified emulsions, 10 parts of gelatin, 1 part of urea, 2 are weighed
In part borax and 0.6 part of cellulose investment reaction kettle, reactor temperature is increased to 130 DEG C, with agitating device with 200r/
70min is mixed in the revolving speed of min, puts into mold material after stirring, mold is placed in hot press, is in compacting pressure
16MPa, temperature are suppressed 2h under conditions of being 110 DEG C, are put into baking oven after compacting, dry 12h under conditions of temperature is 70 DEG C
Up to hydrophobic wood.
The preparation of blend: it is made mixed for being pulverized and mixed in poplar sawdust and reed rod 5:1 in mass ratio investment pulverizer
Object is closed, the hydrochloric acid 1:5 in mass ratio that mixture and mass fraction are 11% is put into beaker, with blender with 350r/ under room temperature
The revolving speed of min is mixed 2.5h and mixed serum is made；
By in above-mentioned mixed serum and aluminium chloride 20:1 in mass ratio investment reaction kettle, closed reactor is filled with into reaction kettle
Nitrogen increases air pressure in kettle and raises simultaneously temperature in the kettle to 170 DEG C, constant temperature and pressure reacts 110min and reaction is made to 1.7MPa
Slurries；
Above-mentioned reacting slurry is placed in a vacuum drying oven, is dried in vacuo under conditions of temperature is 80 DEG C, vacuum degree is 150Pa
13h, ground 50 mesh obtains sieving after drying, and sieving and titanium tetrachloride powder 20:1 in mass ratio are put into blender
In be uniformly mixed obtained blend.
The preparation of modified emulsion: according to parts by weight, 9 parts of blends described above, 3 parts of tetraethyl orthosilicates, 4 parts the third two are weighed
In ketone, 13 parts of n-butanols and 1 part of stearic acid investment beaker, places the beaker in resistance heating set, increase resistance heating sleeving temperature
To 65 DEG C, mixed emulsion is made with blender constant temperature stirring 90min；
The ammonium hydroxide that the mass fraction of mixed emulsion quality 14% is 18% is added dropwise into above-mentioned beaker, while dropwise addition into beaker plus
Enter magnetic force ball, and with the mixing of the revolving speed of 220r/min, continues to be mixed with the revolving speed of 220r/min after completion of dropwise addition
Modified emulsion is made in 55min.
The preparation of hydrophobic wood: according to parts by weight, 24 parts of above-mentioned modified emulsions, 11 parts of gelatin, 2 parts of urea, 2 are weighed
In part borax and 0.8 part of cellulose investment reaction kettle, reactor temperature is increased to 140 DEG C, with agitating device with 250r/
75min is mixed in the revolving speed of min, puts into mold material after stirring, mold is placed in hot press, is in compacting pressure
18MPa, temperature is suppressed 2.5h under conditions of being 115 DEG C, is put into baking oven after compacting, dry under conditions of temperature is 75 DEG C
13h is up to hydrophobic wood.
The preparation of blend: it is made mixed for being pulverized and mixed in poplar sawdust and reed rod 5:1 in mass ratio investment pulverizer
Object is closed, the hydrochloric acid 1:5 in mass ratio that mixture and mass fraction are 12% is put into beaker, with blender with 400r/ under room temperature
The revolving speed of min is mixed 3h and mixed serum is made；
By in above-mentioned mixed serum and aluminium chloride 20:1 in mass ratio investment reaction kettle, closed reactor is filled with into reaction kettle
Nitrogen increases air pressure in kettle and raises simultaneously temperature in the kettle to 180 DEG C, constant temperature and pressure reacts 120min and reaction is made to 1.8MPa
Slurries；
Above-mentioned reacting slurry is placed in a vacuum drying oven, is dried in vacuo under conditions of temperature is 85 DEG C, vacuum degree is 200Pa
14h, ground 50 mesh obtains sieving after drying, and sieving and titanium tetrachloride powder 20:1 in mass ratio are put into blender
In be uniformly mixed obtained blend.
The preparation of modified emulsion: according to parts by weight, 10 parts of blends described above, 4 parts of tetraethyl orthosilicates, 5 part third are weighed
In diketone, 14 parts of n-butanols and 2 parts of stearic acid investment beakers, places the beaker in resistance heating set, increase resistance heating set temperature
Mixed emulsion is made to 70 DEG C, with blender constant temperature stirring 100min in degree；
The ammonium hydroxide that the mass fraction of mixed emulsion quality 16% is 20% is added dropwise into above-mentioned beaker, while dropwise addition into beaker plus
Enter magnetic force ball, and with the mixing of the revolving speed of 250r/min, continues to be mixed with the revolving speed of 250r/min after completion of dropwise addition
Modified emulsion is made in 60min.
The preparation of hydrophobic wood: according to parts by weight, 25 parts of above-mentioned modified emulsions, 12 parts of gelatin, 3 parts of urea, 3 are weighed
In part borax and 1.0 parts of celluloses investment reaction kettles, reactor temperature is increased to 150 DEG C, with agitating device with 300r/
80min is mixed in the revolving speed of min, puts into mold material after stirring, mold is placed in hot press, is in compacting pressure
20MPa, temperature are suppressed 3h under conditions of being 120 DEG C, are put into baking oven after compacting, dry 14h under conditions of temperature is 80 DEG C
Up to hydrophobic wood.
Comparative example 1: it is essentially identical with the preparation method of example 2, it has only the difference is that lacking blend.
Comparative example 2: it is essentially identical with the preparation method of example 2, it has only the difference is that lacking modified emulsion.
Comparative example 3: the hydrophobic wood of Shanghai company production.
Contact angle test measures its static contact angle using contact angle tester.
Mechanical intensity of wood test passes through " the Physico-mechanical Properties of The Wood test side 1927~1943-2009 of standard GB/T
Method " detection.
1 hydrophobic wood performance measurement result of table
| Test item | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Contact angle (degree) | 150 | 150 | 152 | 110 | 113 | 125 |
| Deflection Modulus of Elasticity (GPa) | 12.0 | 12.2 | 12.3 | 8.1 | 10.2 | 10.5 |
| Bending strength (MPa) | 129.8 | 130.0 | 130.2 | 90.3 | 112.3 | 115.4 |
| Surface hardness (N) | 4950.6 | 4958.3 | 4960.5 | 3615.8 | 3924.3 | 3942.5 |
Good according to above-mentioned detection data hydrophobic wood hydrophobicity produced by the present invention, contact angle reaches 152 °, and mechanics is strong
Degree is high, and Deflection Modulus of Elasticity, bending strength and surface hardness are high, and timber is not easy to break, ruptures, and has broad application prospects.
The foregoing is merely preferred modes of the invention, are not intended to limit the invention, all in spirit and original of the invention
Within then, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of preparation method of hydrophobic wood, it is characterised in that specific preparation step are as follows:
Weigh modified emulsion, in gelatin, urea, borax and cellulose investment reaction kettle, reactor temperature is increased to 130~
150 DEG C, 70~80min is mixed with the revolving speed of 200~300r/min with agitating device, material is put into mold after stirring
In, mold is placed in hot press, compacting pressure be 16~20MPa, temperature be 110~120 DEG C under conditions of compacting 2~
3h is put into baking oven after compacting, and dry 12~14h is under conditions of temperature is 70~80 DEG C up to hydrophobic wood；
The specific preparation step of the modified emulsion are as follows:
(1) it weighs in blend, tetraethyl orthosilicate, propanedione, n-butanol and stearic acid investment beaker, places the beaker resistance
In heating mantle, resistance heating sleeving temperature is increased to 60~70 DEG C, 80~100min is stirred with blender constant temperature and mixed emulsion is made；
(2) ammonium hydroxide that mass fraction is 16~20% is added dropwise into beaker, magnetic force ball is added while dropwise addition into beaker, and
It is mixed with the revolving speed of 200~250r/min, continue to be mixed 50 after completion of dropwise addition with the revolving speed of 200~250r/min~
Modified emulsion is made in 60min；
The specific preparation step of the blend are as follows:
(1) it will be pulverized and mixed obtained mixture in poplar sawdust and reed rod investment pulverizer, is by mixture and mass fraction
In 10~12% hydrochloric acid investment beaker, 2~3h is mixed with the revolving speed of 300~400r/min with blender under room temperature and is made
Mixed serum；
(2) by mixed serum and aluminium chloride investment reaction kettle, closed reactor is filled with nitrogen into reaction kettle, increases in kettle
Air pressure raises simultaneously temperature in the kettle to 160~180 DEG C, constant temperature and pressure reacts 100~120min and is made anti-to 1.6~1.8MPa
Answer slurries；
(3) reacting slurry is placed in a vacuum drying oven, under conditions of temperature is 75~85 DEG C, vacuum degree is 100~200Pa
It is dried in vacuo 12~14h, ground 50 mesh obtains sieving after drying, in mass ratio with titanium tetrachloride powder by sieving
20:1 puts into blender and mixing and blend is uniformly made.
2. a kind of preparation method of hydrophobic wood according to claim 1, it is characterised in that: preferably in parts by weight
Meter, 23~25 parts of the modified emulsion, 10~12 parts of gelatin, 1~3 part of urea, 2~3 parts of borax, cellulose 0.6~1.0
Part.
3. a kind of preparation method of hydrophobic wood according to claim 1, it is characterised in that: the specific system of modified emulsion
In standby step (1) it is preferred according to parts by weight, the blend is 8~10 parts, tetraethyl orthosilicate is 2~4 parts, the third two
Ketone is 3~5 parts, n-butanol is 12~14 parts, stearic acid is 1~2 part.
4. a kind of preparation method of hydrophobic wood according to claim 1, it is characterised in that: the specific system of modified emulsion
It is the 12 of mixed emulsion quality that the mass fraction being added dropwise described in standby step (2) into beaker, which is the quality of 16~20% ammonium hydroxide,
~16%.
5. a kind of preparation method of hydrophobic wood according to claim 1, it is characterised in that: the specific preparation of blend
The mass ratio of poplar sawdust and reed rod as described in step (1) is 5:1.
6. a kind of preparation method of hydrophobic wood according to claim 1, it is characterised in that: the specific preparation of blend
The mass ratio for the hydrochloric acid that mixture as described in step (1) and mass fraction are 10~12% is 1:5.
7. a kind of preparation method of hydrophobic wood according to claim 1, it is characterised in that: the specific preparation of blend
The mass ratio of mixed serum described in step (2) and aluminium chloride is 20:1.
8. a kind of preparation method of hydrophobic wood according to claim 1, it is characterised in that: the specific preparation of blend
The mass ratio of sieving described in step (3) and titanium tetrachloride powder is 20:1.
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| CN201910127082.9A CN109760172A (en) | 2019-02-20 | 2019-02-20 | A kind of preparation method of hydrophobic wood |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076871A (en) * | 2019-05-30 | 2019-08-02 | 黄京合 | A kind of preparation method of high tenacity Anti-moth-eating cork flooring |
| CN112621975A (en) * | 2020-10-28 | 2021-04-09 | 夏邑县金农秸板业有限公司 | Preparation method of multifunctional flame-retardant hydrophobic non-wood fiberboard |
| CN113816479A (en) * | 2021-09-30 | 2021-12-21 | 南通大学 | Slow-release gel aluminum modified wood chip defluorinating agent and preparation method thereof |
-
2019
- 2019-02-20 CN CN201910127082.9A patent/CN109760172A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076871A (en) * | 2019-05-30 | 2019-08-02 | 黄京合 | A kind of preparation method of high tenacity Anti-moth-eating cork flooring |
| CN112621975A (en) * | 2020-10-28 | 2021-04-09 | 夏邑县金农秸板业有限公司 | Preparation method of multifunctional flame-retardant hydrophobic non-wood fiberboard |
| CN112621975B (en) * | 2020-10-28 | 2022-06-03 | 秸都科技(南京)有限公司 | Preparation method of multifunctional flame-retardant hydrophobic non-wood fiberboard |
| CN113816479A (en) * | 2021-09-30 | 2021-12-21 | 南通大学 | Slow-release gel aluminum modified wood chip defluorinating agent and preparation method thereof |
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Application publication date: 20190517 |
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