Anti-yellowing zero-VOC quick-drying bright varnish and preparation method thereof

Abstract

The invention discloses yellowing-resistant zero-VOC quick-drying bright varnish and a preparation method thereof. The invention belongs to the technical field of varnish. The environment-friendly coating comprises a main paint and a curing agent according to a mass ratio of 100:5, wherein the curing agent is benzoyl peroxide, and the main paint is composed of the following components by mass: 98-99% of polymethyl methacrylate resin, 0.6-1.2% of an antifoaming agent, and 0.4-0.8% of a leveling agent. The clear finish paint has the advantages of 100% solid content, no influence of environmentaltemperature and humidity, shortened packaging time, no discoloration after long-term use, no VOC emission, excellent scratch resistance, and realization of high hardness, flatness, fullness, smoothness and brightness mirror-like coating effect.

Description

technical field [0001] The invention relates to the technical field of the clear topcoat, in particular to a yellowing-resistant zero-VOC quick-drying clear topcoat and a preparation method thereof. Background technique [0002] With the development of society, human beings have higher and higher requirements for the aesthetics and coating effect of bright furniture. As a kind of wood coating with excellent performance, PU bright clear topcoat is widely used in wood coating. Its coating film is crystal clear and plump. And the light is like a mirror, which brings consumers a unique noble enjoyment and the taste of pursuing a healthy life. It is favored by the market and customers. However, it takes a long time to dry and requires a lot of places to place the finished product. It takes 48 hours before it can be packed. , seriously affect the production efficiency and delivery period, and at the same time, the yellowing resistance is poor, especially in the coating process, a ...

AI Technical Summary

Problems solved by technology

[0002] With the development of society, human beings have higher and higher requirements for the aesthetics and coating effect of bright furniture. As a kind of wood coating with excellent performance, PU bright clear topcoat is widely used in wood coating. Its coating film is crystal clear and plump. And the light is like a mirror, which brings consumers a unique noble enjoyment and the taste of pursuing a healthy life. It is favored by the market and customers. However, it takes a long time to dry and requires a lot of places to place the finished product. It takes 48 hours before it can be packed. , seriously affect the production efficiency and delivery period, and at the same time, the yellowing resistance is poor, especially in the coating process, a large amount of VOC is emitted, which has become an important source of air pollution. It can no longer meet the increasingly stringent environmental protection requirements and is constantly restricted. Environmental protection requirements, the government encourages furniture companies to use water-based coatings, high-solid% coatings, UV coatings and other environmentally friendly coatings, but both water-based glossy clear topcoats and UV glossy clear topcoats have the disadvantages of poor leveling and fullness, which affects the coating. effect, it is difficult to obtain a high decorative coating film, which cannot meet the needs of the high-end furniture market, and cannot be used in the field of high-gloss furniture. Application in the field of furniture coating

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