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A kind of permeable concrete with thermochromic function

A technology of permeable concrete and temperature-sensitive discoloration, which is applied in the field of permeable concrete, can solve the problems of permeable concrete, and achieve the effects of improving wear resistance and aging resistance, improving whiteness, and good stability

Active Publication Date: 2020-05-08
厦门美益绿建科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the current pervious concrete does not have such a function

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Preparation of a temperature-sensitive color-changing material: Weigh 19 parts of water-based resin, 8 parts of temperature-sensitive color-changing powder, nano-SiO 2 3 parts, 1 part of talcum powder, 1.5 parts of redispersible latex powder, 0.15 parts of water-repellent agent, mix well at room temperature, and obtain the thermochromic material;

[0032] The water-based resin is water-based polyurethane acrylate emulsion; the temperature-sensitive color-changing powder is a triarylmethane phthalide-type temperature-sensitive color-changing material, the chromogenic agent is crystal violet lactone, the chromogenic agent is bisphenol A, and the solvent is myristyl alcohol. The color change process of thermochromic powder occurs in the range of 33-38°C, when it is lower than this range, it is close to white, and when it is higher than this range, it is blue; nano-SiO 2 Hydrophilic gas-phase nano-SiO with an average particle size of no more than 50nm 2 ; The specificatio...

Embodiment 2

[0034] Preparation of a temperature-sensitive color-changing material: Weigh 17 parts of water-based resin, 6 parts of temperature-sensitive color-changing powder, nano-SiO 2 2 parts, 1 part of talcum powder, 0.8 part of redispersible latex powder, 0.10 part of water-repellent agent, mix well at room temperature, and obtain the temperature-sensitive color-changing material;

[0035] The water-based resin is a water-based epoxy acrylate emulsion; the thermochromic powder is a fluoran-type thermochromic material, and the chromogenic agent is 2-anilino-3-methyl-6-diethylaminofluoran (ODB-1) , the color developer is bisphenol A, and the solvent is benzophenone. The color change process of this thermochromic powder occurs in the range of 36-43°C. When it is lower than this range, it is close to white, and when it is higher than this range, it is black; nano-SiO 2 Hydrophilic gas-phase nano-SiO with an average particle size of no more than 50nm 2; The specification of talcum powd...

Embodiment 3

[0037] A kind of permeable concrete with thermochromic function, made by the following method:

[0038] (1) Preparation of thermochromic material: preparation method and raw materials are the same as in Example 1;

[0039] (2) Preparation of permeable concrete: Weigh 260 parts of white Portland cement, 20 parts of reinforcing components, 1680 parts of stones, 106 parts of water, 5 parts of water-reducing agent, and the temperature-sensitive concrete prepared in step (1) by weight. 17 parts of color-changing materials are mixed uniformly at room temperature to obtain permeable concrete with temperature-sensitive color-changing function.

[0040] Wherein, Portland cement is white Portland cement with P.W 42.5 label. The reinforcing component is nano-calcium carbonate with an average particle size not higher than 60 μm. The stones are rationally graded white stones with a particle size of 6-10 mm and mainly single-graded. The water is the water meeting the requirements of "Con...

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PUM

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Abstract

The invention relates to water-permeable concrete having a temperature-sensing color-changing function. The water-permeable concrete comprises, by mass, 250-300 parts of silicate cement, 20-30 parts of enhancing component, 1500-1700 parts of pebble, 105-115 parts of water, 4-7 parts of water reducer and 15-25 parts of temperature-sensing color-changing material. Compared with the prior art, the water-permeable concrete has the advantages that when outside temperature changes, color changes along with changing of temperature within a certain interval, so that good decorating effect is realized. Needed raw materials are simple and easy to obtain, and the water-permeable concrete does not need special preparation process and is high in economic efficiency and convenient for popularization.

Description

technical field [0001] The invention relates to permeable concrete, in particular to a permeable concrete with temperature-sensitive color changing function. Background technique [0002] Thermochromic materials, also known as reversible thermochromic materials, refer to special functional materials whose color changes reversibly with temperature within a certain temperature range. Judging from the composition and properties of the existing thermochromic materials, they can be divided into three categories: inorganic, liquid crystal and organic. Compared with inorganic and liquid crystal materials, organic thermochromic materials have the following advantages: a wide range of temperature changes, and the color change range can be between -200 and 200 °C; there is a large choice, and the color can be freely selected; the color change temperature is generally low , long life and high sensitivity, good stability, high resolution of discoloration, relatively cheap and so on. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/28C04B28/04C04B111/82
CPCC04B28/04C04B40/0039C04B2111/00284C04B2111/82C04B14/02C04B2103/302C04B14/28C04B18/146C04B24/28C04B2103/54C04B24/026C04B14/062C04B14/042C04B24/26C04B24/08C04B24/281C04B24/008
Inventor 赵明王浩任伍根伙邹冬森刘文龙谢芳
Owner 厦门美益绿建科技有限公司
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