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Intelligent temperature regulating type heat reflection heat insulation coating and preparation method thereof

A technology of thermal insulation coating and heat reflection, applied in the direction of reflection/signal coating, coating, etc., can solve the problems of declared safety impact, construction personnel and surrounding environment impact, low weather resistance, etc., to overcome the impact on the environment, reduce Heat island effect, the effect of avoiding drastic changes

Active Publication Date: 2014-04-23
江苏丰彩建材(集团)有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the search of the applicant, it is found that architectural reflective heat-insulating coatings mainly include two types: solvent-based and water-soluble. Thermal paint has low weather resistance, only 3 to 5 years, and the volume used is mostly xylene, which pollutes the environment. The Chinese patent application number 200410048047.1 also discloses a paint that uses xylene as a solvent Another publication number is that the Chinese patent of CN102898905A adopts fluororesin, fumed silica, hollow glass microspheres and mixed organic solvents to prepare reflective heat-insulating coatings. Although this coating has higher solar reflectance and hemispherical emissivity, its Most of the mixed solvents used are alcohols or esters, which will have a certain impact on the construction personnel and the surrounding environment
To sum up, solvent-based coatings have certain positive effects in terms of reflection and heat insulation, but most of the solvents used are toxic and harmful, which can easily have a serious impact on the environment and human safety.
In terms of water-soluble reflective heat-insulating coatings, one is a high-efficiency reflective heat-insulating coating and its preparation method disclosed in the Chinese patent with the publication number CN103183996A. It adopts the method of orthogonal experiment and uses compounding technology. After calculating the extreme difference R The primary and secondary order of each factor is obtained to obtain the optimal matching heat insulation coating formula. The prepared coating has high reflectivity and emissivity. The coating system is composed of a phase-change thermal insulation primer. Due to the double-layer structure, the actual construction cost is relatively high. At the same time, the coating uses a relatively simple paraffin phase-change material, which is only used as a simple heat-absorbing effect in this system. , there are certain limitations in indoor temperature regulation
At present, most reflective and heat-insulating coatings on the market have high reflectivity and emissivity, but they are rarely used in indoor temperature regulation.

Method used

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  • Intelligent temperature regulating type heat reflection heat insulation coating and preparation method thereof
  • Intelligent temperature regulating type heat reflection heat insulation coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Take 100g of rutile titanium dioxide (using R-996) and put it into a beaker, add 500ml of ethanol, stir for 5-10 minutes to dissolve the rutile titanium dioxide in ethanol, then add 3-aminopropyltriethoxysilane into the beaker (Using KH550) 8.5g, stirred evenly, placed in a condensing reflux device, and condensed and refluxed at 60°C for 3 hours to obtain a mixture, which was filtered, washed, and dried under normal conditions to obtain 3-aminopropyl tris Ethoxysilane modified rutile titanium dioxide.

[0029] Weigh 200g of paraffin-type phase-change microcapsules (model RUBITHERM RT27) into a beaker, add 800ml of ethanol, mix well, add 80g of 3-aminopropyltriethoxysilane modified rutile-type titanium dioxide into the beaker, and Place in a condensing reflux device, adjust the temperature of the water bath to 80°C, and carry out condensing and reflux operation for 4 hours. After reflux, filter and wash to obtain high-reflective phase-change microcapsules.

[0030] Add ...

Embodiment 2

[0033] Take 120g of rutile titanium dioxide (using NTR-606) and put it into a beaker, add 500ml of ethanol, stir for 5-10 minutes to dissolve the rutile titanium dioxide in ethanol, then add tridecafluorooctyltriethoxysilane into the beaker (Using the modifier of ACTYGLON-G617 model) 11g, after stirring evenly, place it in the condensing reflux device, carry out the condensing reflux operation at 70°C for 4 hours to obtain a mixture, which is filtered, washed and dried under normal conditions Tridecafluorooctyltriethoxysilane modified rutile titanium dioxide was obtained.

[0034] Weigh 180g of acrylic wall-type phase-change microcapsules (model ESM-44) into a beaker, add 800ml of ethanol, mix well, and add 110g of tridecafluorooctyltriethoxysilane modified rutile titanium dioxide into the beaker , adjusting the temperature of the water bath to 70° C., performing condensation and reflux operation for 5 hours, and obtaining high-reflective phase-change microcapsules by filterin...

Embodiment 3

[0038] Take 100g of rutile titanium dioxide (using R-258) and put it into a beaker, add 500ml of ethanol, stir for 5-10 minutes, dissolve the rutile titanium dioxide in ethanol, and then add γ-(methacryloyloxy) propane to the beaker 7.5g of trimethoxysilane (using KH570), stirred evenly, and condensed and refluxed at 70°C for 6 hours to obtain a mixture. The mixture was filtered, washed and dried under normal conditions to obtain γ-(methacryloyloxy ) Propyltrimethoxysilane modified rutile titanium dioxide.

[0039] Weigh 160g of acrylic wall-type phase-change microcapsules (model ESM-44) into a beaker, add 800ml of ethanol, mix well, add γ-(methacryloyloxy)propyltrimethoxysilane to the beaker to modify 85g of non-volatile rutile titanium dioxide, adjust the temperature of the water bath to 75°C, carry out the condensation and reflux operation for 6 hours, after reflux, filter and wash to obtain high-reflective phase-change microcapsules.

[0040] Add 120g of water, 2.5g of am...

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Abstract

The invention relates to an intelligent temperature regulating type heat reflection heat insulation coating and a preparation method thereof. The coating is made from raw materials in parts by weight: 200-300 parts of acrylic emulsion, 150-250 parts of high reflection type phase change microcapsules, 30-80 parts of high radiation type nano-metal and metal oxide, 100-150 parts of packing with heat insulation function, 2-5 parts of a wetting dispersant, 1-3 parts of a mould inhibitor, 5-10 parts of a thickener, 4-8 parts of a defoaming agent, 15-25 parts of a film forming additive, and 100-150 parts of water. The intelligent temperature regulating type heat reflection heat insulation coating provided by the invention is excellent in performance, safe and environment-friendly, and has high reflectivity and emissivity. By utilizing the reversible energy storage and release effect of the phase change microcapsules, the temperature of the inner side and the surface of an object can be effectively and automatically regulated along with the change of external temperature so that the temperature tends to be stable so as to avoid the radical change of the temperature of the inner side and the surface of the object caused by sudden rising or dropping of the external temperature.

Description

technical field [0001] The invention relates to an intelligent temperature-regulating type heat-reflecting heat-insulating coating, and also relates to a preparation method thereof, which belongs to the technical field of green energy-saving building materials. Background technique [0002] In recent years, with the increasingly prominent energy crisis and environmental pollution problems, green buildings and building energy conservation have become one of the development themes in my country. Among them, reflective insulation coatings can effectively reduce the surface temperature of objects, thereby greatly reducing air-conditioning. Factors such as power consumption are generally concerned by people. According to the search of the applicant, it is found that architectural reflective heat-insulating coatings mainly include two types: solvent-based and water-soluble. Thermal paint has low weather resistance, only 3 to 5 years, and the volume used is mostly xylene, which pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D5/33C09D7/12
Inventor 李晴朱殿奎沈志明李安宁朱灿银张辉
Owner 江苏丰彩建材(集团)有限公司
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