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Water-based color-changing coating and coated product thereof

A color-changing paint, water-based technology, used in antifouling/underwater paints, heat-sensitive paints, polyurea/polyurethane paints, etc. problems, to achieve the effect of enhancing curing efficiency, large-scale industrial production benefits, and good application prospects

Inactive Publication Date: 2019-06-14
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In addition, there are many problems whether it is heat-curing color-changing paint or UV light-curing color-changing paint: if the heat-curing color-changing paint is solvent-based, it will increase the emission of volatile organic compounds, which is not good for the environment and the health of workers. The production conditions of this type of coating are becoming more and more strict; if the heat-curing color-changing coating is water-based, although it can reduce environmental pollution, the performance of the coating is slightly worse, the coating film is not dense, and the curing time is long; if the UV light-curing color-changing coating The solvent-free type needs to be diluted with an active agent. Although it has the characteristics of high efficiency, wide application, economy, energy saving, and environmental friendliness, the active diluent with low functionality is volatile and has certain toxicity and irritation, which is harmful to the health of workers. unfavorable

Method used

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  • Water-based color-changing coating and coated product thereof
  • Water-based color-changing coating and coated product thereof
  • Water-based color-changing coating and coated product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This embodiment relates to a photosensitive thermochromic coating product, which includes a photosensitive thermochromic layer, and the color changing layer is formed by curing a water-based color changing paint.

[0046] The composition of the water-based color-changing paint is shown in Table 1.

[0047] Table 1 Water-based color-changing paint composition list

[0048]

[0049] The preparation process is as follows:

[0050] Add 35 parts of water-based polyurethane acrylate oligomer UCECOAT 7200 (Allnex) and 52 parts of water-based polyurethane acrylate oligomer UCECOAT 7177 (Allnex) into a mixing tank with a condenser, and form an emulsion system after stirring ; Under the condition of stirring at a constant speed, add 1 part of reactive emulsifier ER-20 (ADEKA company) into the above-mentioned emulsion system to make it uniformly dispersed, the stirring speed is 800r / min, and stir for 0.5h;

[0051] Add 0.2 parts of water-based dispersant DISPERBYK-180 (BYK co...

Embodiment 2

[0055] This embodiment relates to a photosensitive thermochromic coating product, which includes a photosensitive thermochromic layer, and the color changing layer is formed by curing a water-based color changing paint.

[0056] The composition of the water-based color-changing paint is shown in Table 2.

[0057] Table 2 Water-based color-changing paint composition list

[0058]

[0059]

[0060] The preparation process is as follows:

[0061] 40 parts of water-based polyurethane acrylate oligomer UCECOAT 7210 (Allnex), 45 parts of water-based polyurethane acrylate oligomer UCECOAT 7689 (Allnex) and 9 parts of fluorine compound aqueous emulsion HEXAFOR T-70 (Guangzhou Yangsong Trading Co., Ltd.), add it to the mixing tank with a condenser, and form an emulsion system after stirring; under the condition of constant stirring, add 1.5 parts of reactive emulsifier SR-20 (ADEKA company) to the above emulsion system to make it uniform Dispersion, stirring speed 800r / min, sti...

Embodiment 3

[0067] This embodiment relates to a photosensitive thermochromic coating product, which includes a photosensitive thermochromic layer, and the color changing layer is formed by curing a water-based color changing paint.

[0068] The composition of the water-based color-changing paint is shown in Table 3.

[0069] Table 3 Water-based color-changing paint composition list

[0070]

[0071]

[0072] The preparation process is as follows:

[0073] Add 50 parts of water-based polyurethane acrylate oligomer UCECOAT 7699 (Allnex) and 35 parts of water-based polyurethane acrylate oligomer UCECOAT 6558 (Allnex) into a mixing tank with a condenser, and form an emulsion system after stirring ; Under the condition of stirring at a constant speed, add 0.5 part of reactive emulsifier NE-10 (ADEKA company) and 0.5 part of reactive emulsifier SE-10N (ADEKA company) into the above-mentioned emulsion system to make it uniformly dispersed, stirring speed 800r / min, stirring for 0.5h;

...

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Abstract

The invention relates to a water-based color-changing coating and a film product thereof in the technical field of water-based coatings. The water-based color-changing coating comprises main body resin, a water-based photochromic agent, a water-based thermochromic agent and a reactive emulsifier, wherein the water-based photochromic agent and the water-based thermochromic agent contain an outer coating material, the outer coating material is a polystyrene high-molecular polymer or an acrylate high-molecular polymer, and the outer coating material and the reactive emulsifier have matched HLB values. According to the invention, an oily color-changing agent is protected by adopting the outer coating material such as the polystyrene high-molecular polymer or the acrylate high-molecular polymer, thus the oily color-changing agent can be stably dispersed in a water-based system coating, the stability of the color-changing capacity of the coating is guaranteed, thermochromic and photochromiceffects are achieved at the same time, and the requirements of impression and other sensing functions can be met.

Description

technical field [0001] The invention relates to a technology in the field of water-based paint, in particular to a water-based color-changing paint and its film-coated products. Background technique [0002] At present, the color-changing paints on the market cannot always maintain beautiful color changes because the properties of the color-changing agent in the paint are not stable enough. Architectural decoration, catering utensils, nail art and other industries have more and more demands on the color-changing ability of products, but the stability of the color-changing ability and the types of color changes limit the market demand. [0003] In addition, there are many problems whether it is heat-curing color-changing paint or UV light-curing color-changing paint: if the heat-curing color-changing paint is solvent-based, it will increase the emission of volatile organic compounds, which is not good for the environment and the health of workers. The production conditions o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D5/26C09D7/63C09D5/16
Inventor 王友东李冠毅丁清华
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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