Plastic heat discoloration coating and preparation method and application thereof

Abstract

The invention discloses plastic heat discoloration coating and a preparation method thereof. The plastic heat discoloration coating contains the following components in percentage by weight: 20-25% of thermoplastic acrylic resin, 10-20% of vinyl chloride-vinyl acetate resin, 50-55% of a mixed solvent, 7.5-17.5% of temperature sensing microcapsule powder, 1% of a functional assistant, 0.4-1% of a leveling agent, and 1-2% of a dispersant. The plastic heat discoloration coating disclosed by the invention has excellent adhesion to plastics, has a sense effect of color change with temperature change, and can reversibly change between a colorless status and a color status. The coating is coated on a plastic surface, the coating is changed from being colored to colorless or from colorless to being colored with temperature change, and the color change is reversible. The coating is suitable for being applied to the surfaces of acrylonitrile butadiene styrene (ABS), acrylonitrile styrene (AS), polystyrene (PS), polyvinyl chloride (PVC), polycarbonate (PC), pretreated polypropylene (PP) and other plastics.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a plastic temperature-sensitive color-changing paint and its preparation method and application. Background technique [0002] At present, there are many kinds of plastic coatings on the market. The mainstream colors are ordinary solid color paints or metallic effect paints, transparent paints, etc., which are traditional colors. The color change is also selected between these mainstream colors. Ordinary decoration purpose, but it is always the direction of future development in terms of function, personality and diversification. In order to seek a breakthrough in function and personalization, a plastic temperature-sensitive color-changing paint is invented. By coating the plastic substrate with temperature-sensitive color change Coatings meet the requirements of perception, warning, and colorfulness when the ambient temperature changes. [0003] Temperature-sensitive color-chan...

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Problems solved by technology

[0002] At present, there are many kinds of plastic coatings on the market. The mainstream colors are ordinary solid color paints or metallic effect paints, transparent paints, etc., which are traditional colors. The color change is also selected between these mainstream colors. Ordinary decoration purpose, but it is always the direction of future development in terms of function, personality and diversification. In order to seek a breakthrough in function and personalization, a plastic temperature-sensitive color-changing paint is invented. By coating the plastic substrate with temperature-sensitive color change Coatings meet the requirements of perception, warning and colorfulness when the ambient temperature changes

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