Preparation method of high-wear resistance heat reflective pavement composite coating

A composite coating, heat reflection technology, applied in the direction of reflection/signal coating, polyether coating, polyurea/polyurethane coating, etc., can solve the problem of poor wear resistance of heat reflection coating, achieve no fire hazard and excellent adhesion , excellent flexibility

Inactive Publication Date: 2019-10-22
慈溪市果雨电子商务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] Technical problem to be solved by the present invention: Aiming at the problem of poor wear resistance of existing heat reflective coatings, a preparation method of high wear-resistant heat reflective pavement composite coatings is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] In parts by weight, weigh 20 parts of epoxy resin, 40 parts of ethylene glycol, 40 parts of n-butanol, 8 parts of styrene, 4 parts of butyl acrylate, 0.4 part of ammonium persulfate, 2 parts of phosphoric acid ester, 2 parts of 1 part of polypropylene glycol, 30 parts of deionized water, mix ethylene glycol and n-butanol, place in a mixer, stir and mix at 100r / min for 10min at room temperature, to obtain a mixed alcohol solution, and add epoxy resin to the mixed alcohol solution , stirred at 200r / min for 20min at 100°C, kept warm to obtain a mixed solution, slowly added styrene, butyl acrylate, ammonium persulfate, phosphoric acid ester, polypropylene glycol into the mixed solution, added dropwise for 1h, at 100 Insulate and react at ℃ for 2 hours to obtain a mixed reaction solution. Add deionized water to the mixed reaction solution, and dropwise add ammonia water with a mass concentration of 1% to adjust the pH to 7. Stir and emulsify at room temperature at a speed of ...

Embodiment 2

[0048] In parts by weight, weigh 25 parts of epoxy resin, 50 parts of ethylene glycol, 50 parts of n-butanol, 10 parts of styrene, 5 parts of butyl acrylate, 0.5 part of ammonium persulfate, 2 parts of phosphoric acid ester, 2 parts of 1 part polypropylene glycol, 40 parts deionized water, mix ethylene glycol and n-butanol and place in a mixer, stir and mix at 110r / min for 11 minutes at room temperature to obtain a mixed alcohol solution, add epoxy resin to the mixed alcohol solution , stirred at 220r / min for 25min at 110°C, kept warm to obtain a mixed solution, slowly added styrene, butyl acrylate, ammonium persulfate, phosphoric acid ester, polypropylene glycol into the mixed solution, added dropwise for 1h, at 110 Insulate and react for 3 hours at ℃ to obtain a mixed reaction solution. Add deionized water to the mixed reaction solution, and dropwise add ammonia water with a mass concentration of 1% to adjust the pH to 7. Stir and emulsify at room temperature at a speed of 14...

Embodiment 3

[0050]In parts by weight, weigh 30 parts of epoxy resin, 60 parts of ethylene glycol, 60 parts of n-butanol, 12 parts of styrene, 6 parts of butyl acrylate, 0.6 part of ammonium persulfate, 3 parts of phosphoric acid ester, 3 parts of 1 part of polypropylene glycol, 45 parts of deionized water, mix ethylene glycol and n-butanol, place in a mixer, stir and mix at 120r / min for 12min at room temperature to obtain a mixed alcohol solution, add epoxy resin to the mixed alcohol solution , stirred at 240r / min for 30min at 120°C, kept warm to obtain a mixed solution, slowly added styrene, butyl acrylate, ammonium persulfate, phosphoric acid ester, polypropylene glycol into the mixed solution, added dropwise for 2 hours, at 120 Insulate and react for 4 hours at ℃ to obtain a mixed reaction solution. Add deionized water to the mixed reaction solution, and dropwise add ammonia water with a mass concentration of 1% to adjust the pH to 7. Stir and emulsify at room temperature at a speed of ...

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PUM

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Abstract

The invention relates to a preparation method of a high-wear resistance heat reflective pavement composite coating, and belongs to the technical field of pavement materials. The high-wear resistance heat reflective pavement composite coating is prepared by adopting a waterborne epoxy emulsion as a base material and compounding the waterborne epoxy emulsion with a waterborne polyurethane emulsion.The waterborne epoxy emulsion has an excellent adhesion, and has a good adhesion to an asphalt pavement, so the wettability and the adhesion of a resin coating film can be easily enhanced; the presence of a benzene ring makes the resin have good heat resistance and good rigidity, an isopropyl group also makes the resin have rigidity, and high bond energy of a carbon-oxygen bond can improve the alkali resistance of an epoxy resin; a polyurethane molecular chain in the waterborne polyurethane emulsion contains a flexible polyether segment and an isocyanate hard segment, so the polyurethane has an excellent flexibility, and the molecular chain contains many reactive groups; and the waterborne epoxy emulsion and the waterborne polyurethane emulsion are compounded as the base material, so the adhesion and the wear resistance of the heat reflective pavement coating can be effectively improved.

Description

technical field [0001] The invention relates to a preparation method of a high wear-resistant heat-reflecting pavement composite coating, which belongs to the technical field of pavement materials. Background technique [0002] Because the color of the asphalt pavement is black, the absorption rate of the solar heat radiation can be as high as 0.85~0.95, and the temperature of the road surface is easy to rise under the long-term solar heat radiation. Especially in summer, due to the increased solar radiation and prolonged sunshine hours, the asphalt pavement will absorb a large amount of heat and store it in the pavement structure, making the pavement temperature much higher than the air temperature. Under high temperature conditions, the performance of asphalt transforms from elastic body to plastic body, the stiffness modulus drops significantly, and its anti-deformation ability drops sharply, and severe rutting will appear under the action of vehicle load. After the ruts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D175/04C09D171/02C09D7/62C09D7/65C09D5/33
CPCC08K2003/2241C08K2003/2296C08L2205/03C09D5/004C09D151/08C09D7/62C09D7/65C08L75/04C08L71/02C08K13/06C08K9/06C08K3/22C08K7/28
Inventor 艾旭盛
Owner 慈溪市果雨电子商务有限公司
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