CN108949087A - A kind of permeable pavement is dedicated can reactive infiltration type sticking material - Google Patents

Abstract

The invention discloses a special reactive and permeable adhesive layer material for permeable pavement, which is composed of component A and component B. The component A includes the following components by weight: polyurethane prepolymer terminated by NCO groups 30-50 parts, 40-50 parts of permeate, 5-10 parts of SBS, 2-5 parts of petroleum resin, 3-8 parts of natural rosin resin, 0-1 part of flame retardant, 1-3 parts of thinner, group B It consists of 100 parts of polyol curing agent and 1 to 3 parts of catalyst. The adhesive layer material proposed by the present invention is a reactive and permeable adhesive layer material specially used in permeable pavement, which greatly improves the cohesiveness and durability, especially for the permeable pavement with large pores. The pores will not be blocked, the system viscosity is small, the adhesion is strong, and the preparation process is simple, economical and durable.

Description

A reactive and permeable adhesive layer material for permeable pavement

technical field

The invention belongs to the field of road engineering, and in particular relates to a sticky layer material used for permeable road surfaces and a preparation method thereof.

Background technique

When paving asphalt concrete pavement and cement concrete pavement, the bonding material is usually sprinkled between the concrete layers as a functional layer. The adhesive material has strong cohesiveness and shear strength, which ensures that the pavement layer and the layer form a whole, and prevents diseases such as shifting and wrapping of the pavement. The material used in this layer is also called the adhesive layer material. At present, the more common sticky course materials are modified emulsified asphalt and emulsified asphalt. Traditional pavements are mostly paved with densely graded mixtures. In order to ensure the durability of the pavement structure and reduce water damage to the pavement, most of them are paved with waterproof adhesive materials.

Chinese patent CN101407387B "Second-order reaction type waterproof bonding material" discloses a waterproof bonding material suitable for cement concrete bridge deck, composite road surface, steel bridge deck asphalt layer, but this kind of material is not suitable for permeable pavement , can not meet the water seepage requirements of permeable pavement.

Chinese patent CN105295830A "interlayer bonding waterproof material and its preparation method" discloses a concrete interlayer bonding material with high cohesive force and is not prone to segregation, but the application of this material in permeable pavement will greatly reduce the viscosity of the material. knot force, reducing road performance.

Sponge city permeable pavement is a large-gap open-graded pavement structure, which has the characteristics of noise reduction, anti-slip, water seepage, etc. Rainwater can seep through the pavement structure layer to the subgrade. Satisfy the water permeability requirements. For the development of permeable pavement in sponge city, the existing sticky layer materials cannot meet the needs in terms of water permeability and cohesive force.

Contents of the invention

Aiming at the deficiencies in this field, the object of the present invention is to provide a special reactive and permeable adhesive layer material for permeable pavement. Small size, strong adhesion, simple process.

Another object of the present invention is to provide a method for preparing the reactive permeable adhesive layer material for permeable pavement.

The technical scheme that realizes the above-mentioned purpose of the present invention is:

A reactive and permeable adhesive layer material for permeable pavement, consisting of A component and B component,

Component A includes the following components by weight: 30-50 parts of polyurethane prepolymer terminated by NCO groups, 40-50 parts of permeate, 5-10 parts of SBS, 2-5 parts of petroleum resin, 3 parts of natural rosin resin ～8 parts, flame retardant 0～1 part, thinner 1～3 parts,

Component B consists of 100 parts of polyol curing agent and 1-3 parts of catalyst.

The -NCO-terminated polyurethane prepolymer in the composition of the reaction-permeable adhesive layer material reacts with the polyalcohol curing agent to make the viscosity of the system increase and improve the performance of the material.

Wherein, the permeate is C9 component (C9 fraction) of petroleum distillate and 90# road petroleum asphalt, and the ratio of the two is 1:1-2:1.

Wherein, the polyol curing agent is one of polyester polyol, polyether polyol and vegetable oil polyol. Polyether polyols with good flexibility are preferred.

Preferably, the petroleum resin is one of C5 series petroleum resin, C9 series petroleum resin and dicyclopentadiene series petroleum resin.

Wherein, the diluent is one of ethyl acetate, acetone, cyclohexanone, n-butanol, and styrene.

Wherein, the catalyst is one or two of dibutyltin dilaurate, triethylenediamine, triethylenediamine, and methyltrioctylammonium chloride.

More preferably, the A component of the reaction-permeable adhesive layer material includes the following ingredients in parts by weight: 45-50 parts of polyurethane prepolymer terminated by end-NCO groups, 45-50 parts of permeate, 7-50 parts of SBS 8 parts, 5 parts of petroleum resin, 3-4 parts of natural rosin resin, 1 part of flame retardant, 2-3 parts of thinner.

Further, the mass ratio of component A to component B is 2:1˜3:1.

The preparation method of the special reactive and permeable sticky layer material for permeable pavement of the present invention comprises the following steps:

1) After dissolving SBS, petroleum resin, natural rosin resin, flame retardant, and end-NCO group-terminated polyurethane prepolymer in permeate and diluent, stir evenly to obtain component A;

2) Stir the polyol curing agent and catalyst evenly to obtain component B;

3) Prepare components A and B at a ratio of 2:1 to 3:1, mix and stir evenly to obtain a reactive permeable sticky layer material specially used for permeable pavement in sponge cities.

The beneficial effects of the present invention are:

The adhesive layer material proposed by the present invention is a reactive and permeable adhesive layer material specially used in permeable pavement, which greatly improves the cohesiveness and durability, especially for the permeable pavement with large pores. The pores will not be blocked, the system viscosity is small, the adhesion is strong, and the preparation process is simple, economical and durable.

Detailed ways

The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

The polyurethane prepolymer terminated by end-NCO groups is a commercially available product, and the curing time is ≤4h. .

Unless otherwise specified, the means in the embodiments are technical means known in the art. Example 1:

A special reactive permeable adhesive layer material for permeable pavement, which consists of the following mass components: A component: 45 parts of polyurethane prepolymers terminated by end-NCO groups, permeate (C9 fraction and 90# road asphalt Mass ratio 1:1 mixture) 46 parts, SBS 5 parts, petroleum resin (C9 petroleum resin) 3 parts, natural rosin resin 6 parts, flame retardant (aluminum hydroxide) 1 part, diluent (ethyl acetate) 2 Parts, B component: 100 parts of polyol curing agent (polyether polyol), 3 parts of catalyst (dibutyltin dilaurate).

A method for preparing a special reactive permeable adhesive layer material for permeable pavement, comprising the following steps:

1) After dissolving 5 parts of SBS, 3 parts of petroleum resin, 6 parts of natural rosin resin, 1 part of flame retardant, 45 parts of end-NCO group-terminated polyurethane prepolymer in 46 parts of permeate and 2 parts of diluent , stir evenly to obtain component A;

2) Stir 100 parts of polyol curing agent and 3 parts of catalyst evenly to obtain component B;

3) Prepare components A and B at a mass ratio of 2:1, mix and stir evenly to obtain a reactive permeable adhesive layer material for permeable pavement.

Example 2

A special reactive permeable adhesive layer material for permeable pavement is composed of the following mass components: A component: 35 parts of polyurethane prepolymer terminated by end-NCO group, 42 parts of permeate, 6 parts of SBS, petroleum resin 4 parts, 5 parts of natural rosin resin, 0.5 parts of flame retardant, 1.5 parts of diluent, component B: 100 parts of polyol curing agent, 2 parts of catalyst. The composition that each component adopts is with embodiment 1.

A method for preparing a special reactive permeable adhesive layer material for permeable pavement, comprising the following steps:

1) After dissolving 6 parts of SBS, 4 parts of petroleum resin, 5 parts of natural rosin resin, 0.5 part of flame retardant, and 35 parts of end-NCO group-terminated polyurethane prepolymer in 42 parts of permeate and 1.5 parts of diluent , stir evenly to obtain component A;

2) Stir 100 parts of polyol curing agent and 2 parts of catalyst evenly to obtain component B;

3) Mix components A and B at a ratio of 12:5, mix and stir evenly to obtain a reactive permeable adhesive layer material for permeable pavement.

The material prepared in the example is used as a reactive permeable adhesive layer material for permeable pavement to make a core sample, and the self-developed WDW-100 electronic universal testing machine is used to make use of its "tensile" and "compressive" functions. , the core sample was clamped in the fixture, and the interlayer drawing and shearing tests were carried out. The test results are shown in Table 1.

Analyzing and comparing the data of Example 1 and Example ² , there are many main components in Example 1, and the modification effect played by adhesive curing is relatively obvious. The pulling force KN and the shearing force KN are all greater than the data in Example ² , and the data under the spreading rate of 1.0kg/m in Example 1 are also slightly greater than that in Example ² at the spreading rate of 1.2kg/m The data. Therefore, it can be seen that in this adhesive layer material, the components that play a key role in modification-NCO-terminated polyurethane prepolymer, SBS, petroleum resin, natural rosin resin, in theory, the more these components, the more obvious the modification effect . Considering the cost factor, the composition of component A by weight is: 45-50 parts of polyurethane prepolymer terminated by end-NCO group, 45-50 parts of permeate, 7-8 parts of SBS, 5 parts of petroleum resin, natural rosin 3-4 parts of resin, 1 part of flame retardant, and 2-3 parts of thinner are better.

Example 3

A special reactive permeable adhesive layer material for permeable pavement is composed of the following mass components: A component: 50 parts of polyurethane prepolymer terminated by end-NCO group, 48 parts of permeate, 7 parts of SBS, petroleum resin 5 parts, 3.5 parts of natural rosin resin, 1 part of flame retardant, 2.5 parts of diluent, component B: 100 parts of polyol curing agent, 3 parts of catalyst. The composition that adopts is with embodiment 1.

A method for preparing a special reactive permeable adhesive layer material for permeable pavement, comprising the following steps:

1) After dissolving 7 parts of SBS, 5 parts of petroleum resin, 3.5 parts of natural rosin resin, 1 part of flame retardant, and 50 parts of end-NCO group-terminated polyurethane prepolymer in 48 parts of permeate and 2.5 parts of diluent , stir evenly to obtain component A;

2) Stir 100 parts of polyol curing agent and 3 parts of catalyst evenly to obtain component B;

3) Mix components A and B at a ratio of 10:4, mix and stir evenly to obtain a reactive permeable adhesive layer material for permeable pavement.

The material prepared in the example is used as a reactive permeable adhesive layer material for permeable pavement to make a core sample, and the self-developed WDW-100 electronic universal testing machine is used to make use of its "tensile" and "compressive" functions. , the core sample was clamped in the fixture, and the interlayer drawing and shearing tests were carried out. The test results are shown in Table 1.

Comparative example:

Conventional road bonding layer material, spray emulsified asphalt material, spraying amount is 0.5kg/m ² , 1.0kg/m ² , use the same method to test the pull-out force and shear force of the specimen, the test results are shown in the table 1.

Table 1 Pull-out and shear test results of permeable sticky layer materials used in core samples

In the adhesive layer material prepared in Example 3, key modified components such as -NCO-terminated polyurethane prepolymer, SBS, petroleum resin, and natural rosin resin are the most, and the modification effect is obvious, and the resin and the curing agent react well to act as an adhesive. Adhesive effect, so that the pull-out force KN and shear force KN are better than other adhesive layer materials under the spraying amount of 1.5, 1.0kg/m ² .

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. For those skilled in the art, the functions and effects described in this patent can be achieved by any deformation directly derived or associated from the disclosure content and common sense of this patent, or the replacement of existing technologies, as well as equivalent changes or modifications of features. All belong to the protection scope of this patent.

Claims (9)

1. a kind of permeable pavement it is dedicated can reactive infiltration type sticking material, be made of component A and B component, which is characterized in that

Component A includes the ingredient of following parts by weight: 30~50 parts of polyurethane prepolymer of end-NCO group sealing end, penetrating fluid 40~ 50 parts, 5~10 parts of SBS, 2~5 parts of Petropols, 3~8 parts of natural rosin resins, 0~1 part of fire retardant, 1~3 part of diluent, By 100 parts of polyalcohols curing agent, 1~3 part of catalyst forms B component.

2. permeable pavement according to claim 1 is dedicated can reactive infiltration type sticking material, which is characterized in that described Penetrating fluid is the C9 ingredient and 90# bi tumenf orr oad of petroleum distillation liquid, and the two ratio is 1:1~2:1.

3. permeable pavement according to claim 1 is dedicated can reactive infiltration type sticking material, which is characterized in that described Polyalcohols curing agent is one of polyester polyol, polyether polyol, vegetable oil polyol.

4. permeable pavement according to claim 1 is dedicated can reactive infiltration type sticking material, which is characterized in that described Petropols are one of C5 through-stone oleoresin, C9 through-stone oleoresin, bicyclopentadiene through-stone oleoresin.

5. permeable pavement according to claim 1 is dedicated can reactive infiltration type sticking material, which is characterized in that described Diluent is one of ethyl acetate, acetone, cyclohexanone, n-butanol, styrene；The fire retardant is inorganic fire retardants, is Antimony oxide, magnesium hydroxide, aluminium hydroxide, one of silicon-series five-retardant or a variety of.

6. according to claim 1~5 permeable pavement described in any one it is dedicated can reactive infiltration type sticking material, feature It is, the catalyst is dibutyl tin dilaurate, triethylenediamine, triethylene diamine, methyl tricapryl ammonium chloride One or both of.

7. according to claim 1~5 permeable pavement described in any one it is dedicated can reactive infiltration type sticking material, feature It is, component A includes the ingredient of following parts by weight: end-NCO group sealing end 45~50 parts of polyurethane prepolymer, penetrating fluid 45 ~50 parts, 7~8 parts of SBS, 5 parts of Petropols, 3~4 parts of natural rosin resins, 1 part of fire retardant, 2~3 parts of diluent.

8. according to claim 1~5 permeable pavement described in any one it is dedicated can reactive infiltration type sticking material, feature It is, the mass ratio of component A and B component is 2:1~3:1.

9. permeable pavement described in claim 1~8 any one it is dedicated can reactive infiltration type sticking material preparation method, Characterized by comprising the following steps:

1) SBS, Petropols, natural rosin resins, fire retardant, end-NCO group sealing end polyurethane prepolymer are being permeated After dissolving in liquid, diluent, it is uniformly mixing to obtain component A；

2) polyalcohols curing agent, catalyst are uniformly mixing to obtain B component；

3) A, B component are deployed by 2:1~3:1, it is viscous is mixed evenly to obtain the dedicated reactive osmosis type of permeable pavement Layer material.