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Color-variable erasable environment-friendly paint and preparation method thereof

An environmentally friendly paint and color-changing technology, which is applied to heat-sensitive paints, coatings, inks, etc., can solve the problems of casual painters and other problems, and achieve the effect of simple preparation methods

Inactive Publication Date: 2019-01-01
北京首创纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, there have been frequent reports of uncivilized graffiti on public facilities, and creative children's random graffiti on the walls of their homes has also caused great distress to parents.

Method used

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  • Color-variable erasable environment-friendly paint and preparation method thereof
  • Color-variable erasable environment-friendly paint and preparation method thereof
  • Color-variable erasable environment-friendly paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The color-changing and rewritable environmental protection paint is prepared by using the raw materials in the following weight ratio.

[0024]

[0025] Among them, the silica sol is alkaline silica sol, with a pH value of 10, an average particle size of 100nm, and a solid content of 50%; the siloxane is methyltriethoxysilane; the catalyst is hydrochloric acid with a mass fraction of 37%; the nanometer metal oxide is three Vanadium oxide (V 2 o 3 ); the particle size of polytetrafluoroethylene powder is 0.1 micron; the wetting agent is Silok8035; the dispersant is polyethylene glycol 400; the defoamer is Silok4920; the thickener is TT-935.

[0026] The specific preparation method is as follows:

[0027] (1) First weigh the siloxane, heat it to 50 degrees, add the catalyst and 5 parts of water mixture dropwise under stirring, continue stirring for 120 minutes after the dropwise addition, and cool to room temperature;

[0028] (2) Add the mixture prepared in (1) to ...

Embodiment 2

[0033] The color-changing and rewritable environmental protection paint is prepared by using the raw materials in the following weight ratio.

[0034]

[0035] Wherein the silica sol is an acidic silica sol, with a pH value of 5, an average particle diameter of 80nm, and a solid content of 30%; the siloxane is dimethyldimethoxysilane; the catalyst is acetic acid with a mass fraction of 36%; the nanometer metal oxide is Niobium dioxide (NbO 2 ) and tetratitanium heptoxide (Ti 4 o 7 ) mixture, the ratio of the two is 1:1; the particle size of polytetrafluoroethylene powder is 1 micron; the wetting agent is Silok8008; the dispersant is polydimethylsilicone oil; the defoamer is Silok4019; the thickener is RM-2020.

[0036] The specific preparation method is as follows:

[0037] (1) First weigh the siloxane, heat it to 40 degrees, add the catalyst and 5 parts of water mixture dropwise under stirring, continue stirring for 150 minutes after the dropwise addition, and cool to r...

Embodiment 3

[0043] The color-changing and rewritable environmental protection paint is prepared by using the raw materials in the following weight ratio.

[0044]

[0045] Among them, the silica sol is alkaline silica sol, with a pH value of 9, an average particle size of 50nm, and a solid content of 40%; the siloxane is tetraethyl orthosilicate; the catalyst is sulfuric acid with a mass fraction of 98%; the nanometer metal oxide is manganese dioxide (MnO 2 ), vanadium dioxide (VO 2 ) and vanadium trioxide (V 2 o 3 ), the ratio of the three is 2:1:5; the wetting agent is Silok8008; the particle size of polytetrafluoroethylene powder is 5 microns; the dispersant is polyethylene glycol 600; the defoamer is Silok4920; the thickener is ASE-60.

[0046] The specific preparation method is as follows:

[0047] (1) First weigh the siloxane, heat it to 60 degrees, add the catalyst and 5 parts of water mixture dropwise under stirring, continue stirring for 80 minutes after the dropwise addit...

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Abstract

The invention specifically relates to a color-variable erasable environment-friendly paint and a preparation method thereof, belonging to the technical field of functional building paints. The color-variable erasable environment-friendly paint is prepared from the following raw materials by weight: 30 to 70 parts of silica sol, 10 to 30 parts of siloxane, 0.1 to 2 parts of a catalyst, 1 to 10 parts of a nanometer metal oxide, 1 to 5 parts of polytetrafluoroethylene micropowder, 0.1 to 1 part of a wetting agent, 0.1 to 1 part of a dispersant, 0.1 to 1 part of an antifoaming agent, 0.1 to 1 partof a thickening agent and 10 to 30 parts of water. Through usage of brand novel materials and processes, the prepared paint has the composite function that the paint can change colors with temperature, is erasable at will and has environmental protection performance.

Description

technical field [0001] The invention belongs to the technical field of functional architectural coatings, and relates to a color-changing and rewritable environmental protection coating and a preparation method thereof. Background technique [0002] Functional coatings have been applied and gradually developed along with the development of modern coatings, and have become an important part of modern coatings. With the rapid development of architectural coatings in my country, a wide variety of functional architectural coatings have been developed accordingly, and their uses have been continuously expanded. , the performance continues to improve. [0003] In recent years, there have been frequent reports of uncivilized graffiti on public facilities, and the random graffiti on the walls of homes by creative children has also caused great distress to parents. In order to quickly and effectively remove graffiti pollution, a layer of low surface energy functional paint can be coa...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D7/65C09D5/26C09D7/61C09D183/04C09D11/16C09D11/50
CPCC09D1/00C09D5/26C09D11/16C09D11/50C09D183/04C09D7/61C09D7/65
Inventor 咸才军王建平
Owner 北京首创纳米科技有限公司
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