CN112759300A - Yellowing-resistant colorful polyurethane viscose stone permeable pavement material - Google Patents
Yellowing-resistant colorful polyurethane viscose stone permeable pavement material Download PDFInfo
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- CN112759300A CN112759300A CN202110135124.0A CN202110135124A CN112759300A CN 112759300 A CN112759300 A CN 112759300A CN 202110135124 A CN202110135124 A CN 202110135124A CN 112759300 A CN112759300 A CN 112759300A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/16—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
A yellowing-resistant polyurethane cemented stone permeable pavement material belongs to the field of pavement base materials and comprises a component A, a component B and aggregate. The component A comprises castor oil polyalcohol, polyester polyol, a dispersing agent, a solvent-free defoaming agent, an active molecular sieve, active nano calcium carbonate, an inorganic pigment and a thixotropic agent. The component B is an HDI curing agent. The invention has four advantages, the first is that the weather resistance and the ageing resistance are excellent; secondly, the high strength, high toughness and hydrophobicity are adopted, so that the skid resistance and safety of the pavement are improved, and the attractiveness of the pavement is also improved; thirdly, excellent water permeability and water permeability retention; fourthly, the original color of the aggregate can be maintained, and the aggregate can also be made into various colors to improve the decorative performance.
Description
Technical Field
The invention relates to the field of pavement materials, in particular to an acrylic resin adhesive stone permeable pavement material.
Background
Urban waterlogging becomes an inevitable heavy topic in summer every year, and is more and more intense, and a fragile urban drainage pipe network also becomes popular, but the weak drainage capability of a sewer is only a direct cause of urban waterlogging, and more impervious ground in cities is also an important reason for increasing the drainage pressure of the sewer.
In 10 months 2014, the residential town and country construction department has issued technical guidelines for sponge city construction (low impact development rainwater system construction), which specifies the content, requirements and methods for low impact development rainwater system construction in the processes of city planning, engineering design, construction, maintenance and management.
According to the guidance suggestion of the national institute for promoting the construction of the sponge city, the works of the national institute are constructed according to the works of No. 2015 and No. 75, measures such as seepage, stagnation, storage, purification, use and discharge are comprehensively taken through the construction of the sponge city, the influence of the development and construction of the city on the ecological environment is reduced to the maximum extent, and 70% of rainfall is absorbed and utilized on the spot. In 2020, more than 20% of the area of the urban built-up area meets the target requirement; by 2030, more than 80% of the area of the built-up area of the city meets the target requirement.
The permeable pavement adopts a seepage mode, rainwater is absorbed on site or permeates underground or is directly drained into a municipal drainage system, and the runoff of the pavement is obviously reduced to reduce the occurrence of waterlogging. At present, the permeable pavement mainly has three modes, one mode is permeable bricks, the other mode is permeable concrete, and the third mode is an adhesive stone permeable pavement.
The adhesive stone permeable pavement is made of natural colored stones and high weather-resistant modified polymer resin through a special process, has the characteristics of firmness, attractiveness, natural and dazzling color and luster and difficult fading, is a novel artistic landscape paving material, has the advantages of ecological, water permeable, air permeable, better anti-skidding function, environmental protection, no toxicity, no radiation and no environmental pollution, and is a breathable ecological ground.
The product is characterized in that: the visual effect is effectively improved, the influence of splashed water drops and water flowers on sight when a vehicle runs is alleviated, and the road surface reflection caused by the headlights of the vehicle at rainy night is alleviated; the drainage function and the durability of the permeable rubber color stone can be kept for a long time; the anti-skid performance in rainy days is improved (the accumulated water on the road surface is greatly reduced), and the driving speed and the safety are improved; the drainage function avoids the flooding and pollution caused by the fact that rainstorm and initial rainwater directly enter the river channel; the system can effectively serve environment-sensitive zones, and precious land is used for parking lots, sports places or other purposes; reducing the noise generated when the vehicle runs (about 3-6 dB (A) is reduced); and the anti-rutting capability is obviously enhanced in a high-temperature state. Radiation, no environmental pollution and is an ecological ground capable of breathing.
The application range is as follows: municipal works, sidewalks, bicycle tracks; landscape, city square, community ground, villa courtyard; residential periphery access, fire-fighting access, outdoor parking lot; open-air public places such as tree pools, schools, playgrounds and the like.
At present, the cement is used for bonding broken stones or stone grains to prepare the permeable pavement material on the market, but the cement is prepared by the reaction of polyether polyol and a hydrogenated MDI curing agent. The advantage of this system is a significant increase in the permeability and porosity, with a strength corresponding to about 60% of the strength of the pervious concrete. However, these permeable pavement materials have poor aging resistance, and after being put into use for 2 to 3 years, aggregate on the surface is easy to fall off, and only transparent color can be made at present, and colored cementing materials cannot be made.
Disclosure of Invention
Aiming at the problems of single color, no aging resistance and easy yellowing existing in the prior art, the invention provides a yellowing-resistant colorful polyurethane adhesive stone permeable pavement material.
A yellowing-resistant colorful polyurethane cemented stone permeable pavement material is prepared by mixing cementing materials and aggregate;
the cementing material consists of a component A and a component B;
the component A comprises castor oil polyalcohol, polyester polyol, a dispersing agent, a solvent-free defoaming agent, active molecular sieve powder, active nano calcium carbonate, an inorganic pigment and a thixotropic agent;
the component B is a hdi curing agent. According to the weight parts, the polyurethane cemented stone permeable pavement material is prepared by mixing 3-10 parts of cementing material and 90-120 parts of aggregate; the cementing material is obtained by mixing 2-4 parts of component A and 0.8-1.2 parts of component B.
Preferably, the polyurethane cemented stone permeable pavement material is prepared by mixing 6 parts by weight of cementing material and 100 parts by weight of aggregate, wherein the cementing material is prepared by mixing 3 parts by weight of component A and 1 part by weight of component B.
Wherein the component A comprises: 5-20 parts of polyol; 0.3-2 parts of a dispersing agent; 0.3-2 parts of a solvent-free defoaming agent; 5-20 parts of active molecular sieve powder; 10-50 parts of active nano calcium carbonate; 5-20 parts of an inorganic pigment; 0.3-2.0 parts of thixotropic agent.
Preferably, the component A comprises the following components in parts by weight: 5-15 parts of castor oil polyhydric alcohol; polyester polyol: 20-40 parts of a solvent; 0.6-1 part of a dispersant; 0.5-1 part of a solvent-free defoaming agent; 8-14 parts of active molecular sieve powder; 20-35 parts of active nano calcium carbonate; 8-12 parts of an inorganic pigment; thixotropic agent: 0.5 to 1.5 portions.
Preferably, the parts by weight of the component A are as follows: 8 parts of castor oil polyol; 38 parts of polyester polyol; 0.8 part of a dispersant; 0.8 part of solvent-free defoaming agent; 9 parts of active molecular sieve powder; 23 parts of active nano calcium carbonate; 7.9 parts of an inorganic pigment; 0.5 part of thixotropic agent.
Wherein the content of the first and second substances,
the active molecular sieve powder is potassium salt of hydrated aluminum silicate subjected to high-temperature calcination or sodium salt of hydrated aluminum silicate subjected to high-temperature calcination;
the castor oil polyol is branched castor oil polyol; the solvent-free defoaming agent is an acrylate defoaming agent;
the thixotropic agent is amorphous fumed silica; the polyester polyol is self-made polyester polyol; the aggregate is at least one of marble, granite, white stone rice, yellow stone rice, black stone rice, golden granite stone rice, machine-broken stone or colored glass;
the active nano calcium carbonate is nano calcium carbonate with the surface treated by titanate or nano calcium carbonate with the surface treated by phosphate;
the inorganic pigment is at least one of iron yellow, carbon black, iron red, chromium green, copper chromium black, chloridized titanium dioxide, oxidized sapphire blue, pearlescent pigment, precipitated barium sulfate or noctilucent powder. The inorganic pigment is a high-temperature calcined pigment.
Preferably, the first and second liquid crystal materials are,
the particle size range of the active nano calcium carbonate is 40-80 nm, and the specific surface area is 18-25 square meters per gram; preferably, the nano calcium carbonate is nano calcium carbonate with a titanate treated surface or nano calcium carbonate with a phosphate treated surface.
The static water adsorption rate of the hydrated aluminum silicate is more than or equal to 25 percent;
the aggregate has the particle size of 3-20 mm, the water content of less than 2%, the water absorption of less than 1.5%, the crushing value of less than 15%, the mud content of less than 0.5% and the natural stacking porosity of less than 45%;
preferably, the castor oil polyol is a branched castor oil polyol.
Preferably, the polyester polyol has a hydroxyl value of about 200.
In the prior art, polyether polyol is mostly used as a polyurethane raw material, and a polymerization unit is nonpolar, so that the polyurethane has good elasticity and flexibility. Can be dissolved with auxiliary agents such as isocyanate and the like, and is convenient to process. It is not easy to hydrolyze, but it is often transparent or white because it is photoyellowed and discolored by long-term irradiation. And the viscosity is low, and the surface aggregate falls off through friction.
The polyester polyol, similar to polyether polyol, can also be used as a polyurethane raw material, and the polymerization unit is nonpolar, has high cohesiveness and rigidity. However, they are poorly compatible with auxiliary agents such as isocyanates, are not easy to process, have a low degree of foaming polymerization, and are generally added in a small amount or in a small amount as a structural unit or an additive, and the remainder is an organic solvent as a base material.
The invention takes the polyester polyol as the main raw material, greatly improves the proportion of the polyester polyol in the raw material, and changes the physical and chemical properties of the fluid by adding the thixotropic agent and the active molecular sieve powder.
The thixotropic agent improves the thixotropy of the feed liquid, and has the advantages of low consistency, uniform mixing of the AB component, high degree of dispersion of the aggregate, and tight combination of the aggregate and the feed liquid after construction and standing.
The active molecular sieve is used as a reaction site, and has high load rate, so that the polyurethane is almost completely polymerized and foamed. The active molecular sieve can also shield the polyurethane from the influence of water.
The prepared polyester polyol polyurethane-containing binder can overcome the defects that polyester polyol is not suitable for processing and is not hydrolysis-resistant, complete polymerization foaming is realized, and thixotropic property is realized in the processing process. Meanwhile, the polyurethane has the advantages of high cohesiveness and wear resistance of polyester polyol polyurethane.
The invention has the beneficial effects
1) The yellowing resistance is excellent, and the problem of road surface discoloration is solved;
2) the high strength, high toughness and hydrophobicity improve the skid resistance and safety of the pavement and also improve the aesthetic property of the pavement;
3) excellent water permeability and water permeability retention;
4) the original color of the aggregate can be commonly maintained, and the aggregate can also be made into various colors to improve the decorative performance.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Example 1
A yellowing-resistant colorful polyurethane cementitious stone permeable pavement material comprises a component B, an HDI curing agent and HDT-LV2, wherein the aggregate is marble.
The component A is as follows:
weighing 3 parts of the component A and 1 part of the component B according to parts by weight, and mixing to obtain the cementing material. And then weighing 6 parts of cementing material and 100 parts of aggregate according to the parts by weight. Adding the aggregate into a concrete mixer, stirring strongly by using the mixer while pouring the cementing material, and mixing uniformly for 3-5 minutes to obtain the yellowing-resistant colorful polyurethane cemented stone permeable pavement material. Pouring the yellowing-resistant colorful polyurethane cemented stone permeable pavement material onto the ground to be paved, paving the material approximately uniformly, manually finishing the material by a scraper while paving the material, and compacting and leveling the material by a finishing machine to obtain the permeable pavement made of the yellowing-resistant colorful polyurethane cemented stone permeable pavement material.
Comparative example 1
The composite material has the advantages of no addition of thixotropic agent, low compressive strength, low porosity, uneven pore distribution, low water permeability coefficient, no foaming, peeling, crack, pulverization of grade 0 and no color change. The main reason is uneven mixing in the processing process.
Comparative example 2
Active molecular sieve powder is not added, the compressive strength is low, the porosity is low due to small pore diameter, a water permeable system is low, no bubble exists, the peeling, the crack exists, the pulverization is in a grade 0, and the color is not changed. The main reason is incomplete polyurethane foaming polymerization.
Claims (8)
1. The yellowing-resistant colorful polyurethane adhesive stone permeable pavement material is characterized by comprising the following components in parts by weight: is prepared by mixing cementing material and aggregate;
the cementing material consists of a component A and a component B;
the component A comprises castor oil polyalcohol, polyester polyol, a dispersing agent, a solvent-free defoaming agent, active molecular sieve powder, active nano calcium carbonate, an inorganic pigment and a thixotropic agent;
the component B is a hdi curing agent.
2. The yellowing-resistant colorful polyurethane cementitious stone permeable pavement material as claimed in claim 1, which is prepared by mixing 3-10 parts by weight of cementing material and 90-120 parts by weight of aggregate; the cementing material is obtained by mixing 2-4 parts of component A and 0.8-1.2 parts of component B.
3. The yellowing-resistant colorful polyurethane cementitious stone permeable pavement material as claimed in claim 2, wherein the polyurethane cementitious stone permeable pavement material is prepared by mixing 6 parts by weight of cementing material and 100 parts by weight of aggregate, and the cementing material is prepared by mixing 3 parts by weight of component A and 1 part by weight of component B.
4. The yellowing-resistant colorful polyurethane cementitious stone permeable pavement material of claim 1, wherein the component A comprises the following components in parts by weight: 5-20 parts of polyol; 0.3-2 parts of a dispersing agent; 0.3-2 parts of a solvent-free defoaming agent; 5-20 parts of active molecular sieve powder; 10-50 parts of active nano calcium carbonate; 5-20 parts of an inorganic pigment; 0.3-2.0 parts of thixotropic agent.
5. The yellowing-resistant colorful polyurethane viscose stone permeable pavement material according to claim 4, wherein the component A comprises the following components in parts by weight: 5-15 parts of castor oil polyhydric alcohol; polyester polyol: 20-40 parts of a solvent; 0.6-1 part of a dispersant; 0.5-1 part of a solvent-free defoaming agent; 8-14 parts of active molecular sieve powder; 20-35 parts of active nano calcium carbonate; 8-12 parts of an inorganic pigment; thixotropic agent: 0.5 to 1.5 portions.
6. The yellowing-resistant colorful polyurethane viscose stone permeable pavement material according to claim 5, wherein the component A comprises the following components in parts by weight: 8 parts of castor oil polyol; 38 parts of polyester polyol; 0.8 part of a dispersant; 0.8 part of solvent-free defoaming agent; 9 parts of active molecular sieve powder; 23 parts of active nano calcium carbonate; 7.9 parts of an inorganic pigment; 0.5 part of thixotropic agent.
7. The yellowing-resistant colorful polyurethane viscose stone permeable pavement material as claimed in claim 1, wherein the active molecular sieve powder is potassium salt of aluminum silicate hydrate treated by high-temperature calcination or sodium salt of aluminum silicate hydrate treated by high-temperature calcination; the castor oil polyol is branched castor oil polyol; the solvent-free defoaming agent is an acrylate defoaming agent; the thixotropic agent is amorphous fumed silica; the polyester polyol is self-made polyester polyol; the aggregate is at least one of marble, granite, white stone rice, yellow stone rice, black stone rice, golden granite stone rice, machine-broken stone or colored glass; the active nano calcium carbonate is nano calcium carbonate with the surface treated by titanate or nano calcium carbonate with the surface treated by phosphate; the inorganic pigment is at least one of iron yellow, carbon black, iron red, chromium green, copper chromium black, chloridized titanium dioxide, oxidized sapphire blue, pearlescent pigment, precipitated barium sulfate or noctilucent powder.
8. The yellowing-resistant colorful polyurethane adhesive stone permeable pavement material of claim 7, which is characterized in that: the particle size range of the active nano calcium carbonate is 40-80 nm, and the specific surface area is 18-25 square meters per gram; the static water adsorption rate of the hydrated aluminum silicate is more than or equal to 25 percent; the aggregate has the particle size of 3-20 mm, the water content of less than 2%, the water absorption of less than 1.5%, the crushing value of less than 15%, the mud content of less than 0.5% and the natural stacking porosity of less than 45%; the inorganic pigment is a high-temperature calcined pigment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110135124.0A CN112759300A (en) | 2021-02-01 | 2021-02-01 | Yellowing-resistant colorful polyurethane viscose stone permeable pavement material |
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| CN202110135124.0A CN112759300A (en) | 2021-02-01 | 2021-02-01 | Yellowing-resistant colorful polyurethane viscose stone permeable pavement material |
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| CN112759300A true CN112759300A (en) | 2021-05-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753206A (en) * | 2022-04-22 | 2022-07-15 | 江苏先达建设集团有限公司 | Colored ceramic particle pavement construction method |
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| CN109761536A (en) * | 2019-03-11 | 2019-05-17 | 东莞市浩展高分子材料有限公司 | A kind of water-permeable colored glue builds material and construction technology |
| CN109776028A (en) * | 2019-03-11 | 2019-05-21 | 东莞市浩展高分子材料有限公司 | A kind of gluing stone porous pavement material and its construction method |
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2021
- 2021-02-01 CN CN202110135124.0A patent/CN112759300A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108329826A (en) * | 2018-01-11 | 2018-07-27 | 山东扬名新材料技术有限公司 | Double component solvent-free polyurethane coating |
| CN108129071A (en) * | 2018-01-24 | 2018-06-08 | 广州市希尔德新材料科技有限公司 | A kind of polyaspartic ester gluing stone porous pavement material |
| CN109761536A (en) * | 2019-03-11 | 2019-05-17 | 东莞市浩展高分子材料有限公司 | A kind of water-permeable colored glue builds material and construction technology |
| CN109776028A (en) * | 2019-03-11 | 2019-05-21 | 东莞市浩展高分子材料有限公司 | A kind of gluing stone porous pavement material and its construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114753206A (en) * | 2022-04-22 | 2022-07-15 | 江苏先达建设集团有限公司 | Colored ceramic particle pavement construction method |
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Application publication date: 20210507 |