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Overstable thermotropic color-changing coating and preparation method thereof

A thermochromic material and thermochromic technology, applied in the field of coatings

Inactive Publication Date: 2013-11-20
珠海市誉达伟业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing reversible discoloration materials are subject to certain restrictions in use, especially in some occasions that require ultra-stable discoloration

Method used

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  • Overstable thermotropic color-changing coating and preparation method thereof
  • Overstable thermotropic color-changing coating and preparation method thereof
  • Overstable thermotropic color-changing coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] An ultra-stable thermochromic paint, in parts by weight, it consists of the following components:

[0015]

[0016] The organic reversible thermochromic material is prepared by reacting crystal violet lactone and bisphenol A in fatty alcohol.

[0017] The preparation method of above-mentioned ultra-stable thermochromic coating comprises the following steps:

[0018] (1) Disperse talcum powder and organic reversible thermochromic material in a high-speed disperser to obtain component A;

[0019] (2) Add water-based epoxy resin to component A, and add adhesion promoter monoalkoxy titanate, talc powder, dispersant 5163, organic bentonite, defoamer BYK~057, tributoxyethyl phosphate Esters, nonylphenol and styrene are mixed at high speed, the paint mixture is taken out, ground in a grinder, and the insoluble solid impurities are filtered to obtain a color-changing paint.

[0020] Embodiment 1 performance measurement result is as following table:

[0021]

Embodiment 2

[0023] An ultra-stable thermochromic paint, in parts by weight, it consists of the following components:

[0024]

[0025] The organic reversible thermochromic material is prepared by reacting crystal violet lactone and bisphenol A in fatty alcohol.

[0026] The preparation method of above-mentioned ultra-stable thermochromic coating comprises the following steps:

[0027] (1) Disperse talcum powder and organic reversible thermochromic material in a high-speed disperser to obtain component A;

[0028] (2) Add water-based epoxy resin to component A, and add adhesion promoter monoalkoxy titanate, talc powder, dispersant 5163, organic bentonite, defoamer BYK~057, tributoxyethyl phosphate Esters, nonylphenol and styrene are mixed at high speed, the paint mixture is taken out, ground in a grinder, and the insoluble solid impurities are filtered to obtain a color-changing paint.

[0029] Embodiment 2 performance measurement result is as follows table:

[0030]

Embodiment 3

[0032] An ultra-stable thermochromic paint, in parts by weight, it consists of the following components:

[0033]

[0034]

[0035] The organic reversible thermochromic material is prepared by reacting crystal violet lactone and bisphenol A in fatty alcohol.

[0036] The preparation method of above-mentioned ultra-stable thermochromic coating comprises the following steps:

[0037] (1) Disperse talcum powder and organic reversible thermochromic material in a high-speed disperser to obtain component A;

[0038] (2) Add water-based epoxy resin to component A, and add adhesion promoter monoalkoxy titanate, talc powder, dispersant 5163, organic bentonite, defoamer BYK~057, tributoxyethyl phosphate Esters, nonylphenol and styrene are mixed at high speed, the paint mixture is taken out, ground in a grinder, and the insoluble solid impurities are filtered to obtain a color-changing paint.

[0039] Embodiment 3 performance measurement result is as follows table:

[0040]

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Abstract

The invention discloses an overstable thermotropic color-changing coating and a preparation method thereof. The overstable thermotropic color-changing coating is prepared from the following components in parts by weight: 70-85 parts of water-borne epoxy resin, 10-30 parts of organic reversible thermotropic color-changing material, 2.5-3.5 parts of silane coupling agent, 5.8-6.5 parts of talcum powder, 0.8-1 part of dispersing agent, 0.3-0.6 parts of organic bentonite, 0.5-0.7 parts of deforming agent, 2-3 parts of tributoxyethyl phosphate, 0.5-1.5 parts of nonylphenol and 0.5-2.0 parts of styrene, wherein the reversible thermotropic color-changing material is prepared from crystal violet lactone and bisphenol A which react in fatty alcohol. The organic reversible thermotropic color-changing material is modified so as to be transformed into the low-temperature overstable thermotropic color-changing material.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to an ultra-stable thermochromic coating, a preparation method and an application thereof. Background technique [0002] Low-temperature reversible organic color-changing materials are widely used in industry. After research, it is found that organic thermochromic materials are composed of three parts: chromogenic agent, chromogenic agent and solvent compound. The color of the system, the chromogen as the electron acceptor, determines the color depth of the color-changing system, the two undergo a thermal reaction to form a blue dye, and after cooling, the original colorless crystal violet lactone is decomposed, and the electron transfer is reversible with temperature. The solvent compound determines the discoloration temperature of the system. [0003] However, the existing reversible discoloration materials are limited in use, especially in some occasions that require ultra-stable discolo...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/12C09D5/26
Inventor 潘峥嵘
Owner 珠海市誉达伟业科技有限公司
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