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Preparation method and application method of coating material capable of actively adjusting temperature of road

A technology of coating materials and pavement temperature, which can be used in coatings, asphalt coatings, epoxy resin coatings, etc. Reduce the durability of pavement and other problems, and achieve the effect of preventing the pavement from loosening and dropping particles, reducing the cost of coating and prolonging the service life.

Active Publication Date: 2015-04-08
CCCC FIRST HIGHWAY CONSULTANTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have obvious disadvantages, and the cost of heat reflective coating technology is relatively high, reaching 300-400 yuan / m 2 ; Permeable pavement and water-retaining pavement have poor resistance to water damage, and the durability of the pavement is poor; thermal resistance pavement blocks the transfer of heat to the interior of the pavement structure, resulting in a large temperature difference inside the pavement, which is easy to cause temperature shrinkage of the pavement Cracks reduce pavement durability

Method used

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  • Preparation method and application method of coating material capable of actively adjusting temperature of road

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Step 1: Calcining 10 parts by weight of the porous framework material at 450°C for 2 hours, cooling to room temperature, adding 50 parts by weight of 70% sulfuric acid solution, placing it in a constant temperature water bath at 70°C for 3 hours, and then adding Dilute with deionized water and filter until the filtrate is neutral;

[0036] Step 2: Transfer the material obtained in Step 1 into a dry container, dry it in a constant temperature drying oven at 110°C for 24 hours, and grind it to 50 mesh for later use;

[0037] Step 3: Weigh 10 parts by weight of the energy storage phase change material and add it to 50 parts by weight of absolute ethanol and stir to form a solution; then weigh 10 parts by weight of the material obtained in Step 2 and add it, and place it in a constant temperature water bath at 70°C Stir for 2 hours, dry and grind to obtain a modified energy storage phase change material;

[0038] Step 4: Weigh 20 parts by weight of the modified energy stor...

Embodiment 2

[0044]Step 1: Calcining 10 parts by weight of the porous framework material at 470°C for 2.5 hours, cooling to room temperature, adding 60 parts by weight of 70% sulfuric acid solution, placing it in a constant temperature water bath at 70°C for 3 hours, and then adding Dilute with deionized water and filter until the filtrate is neutral;

[0045] Step 2: Transfer the material obtained in Step 1 into a dry container, dry it in a constant temperature drying oven at 110°C for 24 hours, and grind it to 60 mesh for later use;

[0046] Step 3: Weigh 20 parts by weight of the energy storage phase change material and add it to 50 parts by weight of absolute ethanol and stir to form a solution; then weigh 20 parts by weight of the material obtained in Step 2 and add it, and place it in a constant temperature water bath at 70°C Stir for 2 hours, dry and grind to obtain a modified energy storage phase change material;

[0047] Step 4: Weigh 25 parts by weight of the modified energy sto...

Embodiment 3

[0054] Step 1: Calcining 20 parts by weight of the porous framework material at 490°C for 3 hours, cooling to room temperature, adding 70 parts by weight of 70% sulfuric acid solution, placing it in a constant temperature water bath at 70°C for 3.5 hours, and then adding Dilute with deionized water and filter until the filtrate is neutral;

[0055] Step 2: Transfer the material obtained in Step 1 into a dry container, dry it in a constant temperature drying oven at 110°C for 24 hours, and grind it to 70 mesh for later use;

[0056] Step 3: Weigh 30 parts by weight of the energy storage phase change material and add it to 60 parts by weight of absolute ethanol and stir to form a solution; then weigh 30 parts by weight of the material obtained in Step 2 and add it, and place it in a constant temperature water bath at 70°C Stir for 2.5 hours, dry and grind to obtain a modified energy storage phase change material;

[0057] Step 4: Weigh 30 parts by weight of the modified energy ...

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Abstract

The invention relates to a preparation method and an application method of a coating material capable of actively adjusting the temperature of a road. Because the absorptivity of an asphalt road to sunlight is higher than 80%, the urban heat island effect can be caused easily in high-temperature seasons. The preparation method of the coating material comprises the following steps: roasting a porous framework material, cooling, adding sulfuric acid, diluting in a constant temperature water bath and filtering to be neutral; drying and grinding for later use; adding the ground material to an absolute ethyl alcohol solution of an energy-storage phase-change material, stirring, drying and grinding to obtain a modified energy-storage phase-change material; and adding the modified energy-storage phase-change material to cation emulsified asphalt and then sequentially adding polyurethane modified water-borne epoxy resin, a polyurethane modified water-borne epoxy resin curing agent and water to finally obtain the coating material. According to the preparation method, the used energy-storage phase-change material is a solid-liquid phase-change material with high latent heat of phase change; when the temperature of the road is higher than the phase change temperature of the phase-change material in summer, the phase-change material absorbs heat through phase change, so as to reduce the overall temperature of the road; and when the temperature of the road is lower than the phase change temperature of the phase-change material in winter, the phase-change material releases heat through the phase change, so as to improve the overall temperature of the road.

Description

technical field [0001] The invention relates to a pavement coating material, in particular to a method for preparing and using a coating material for actively regulating the temperature of the pavement. Background technique [0002] The asphalt pavement absorbs more than 80% of sunlight, and it is easy to cause the urban heat island effect in high temperature seasons. At present, the methods for adjusting the temperature of the road surface and alleviating the urban heat island effect mainly include heat-reflective coatings, water-permeable pavements, water-retaining pavements, and thermal-resistance pavements. These methods have obvious disadvantages, and the cost of heat reflective coating technology is relatively high, reaching 300-400 yuan / m 2 ; Permeable pavement and water-retaining pavement have poor resistance to water damage, and the durability of the pavement is poor; thermal resistance pavement blocks the transfer of heat to the interior of the pavement structure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D195/00C09D7/12E01C7/35E01C11/26E01C19/17
CPCY02A30/60
Inventor 陈团结王争军王晓路向豪张冬梅李永翔张光普
Owner CCCC FIRST HIGHWAY CONSULTANTS
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