Double-layer coating and coating method thereof

一种双层涂层及其涂覆方法

Abstract

The invention belongs to the technical field of surface coating liquids or other fluid, and relates to a double-layer coating that an inorganic finishing coating is coated onto an organic priming coating, and a coating method of the double-layer coating. The double-layer coating is formed by coating the inorganic finishing coating onto the organic priming coating. Compared with the organic coating, the inorganic coating has the characteristics of thermal resistance, weather resistance, chemical corrosion resistance, high hardness and the like, but has the defects that the inorganic coating is free of elasticity, is relatively crispy, and is relatively high in pretreatment requirement on a base material and poor in adhesion property; the inventor adopts the organic coating as the priming coating, the adhesion and the crispiness of the coating are improved; by using the inorganic coating as the finishing coating, the hardness, the chemical corrosion property and the weather resistance of the organic priming coating are improved, and thus the double-layer coating can be practically applied to the fields of hardware and electronic industry, furniture and electric appliance industry, cooking utensil industry, building decoration industry and automobile coating industry.
本发明属于对表面涂布液体或其它流体的工艺技术领域,涉及一种在有机底涂层之上涂覆无机面涂层的双层涂层及其涂覆方法。一种双层涂层,该双层涂层是在有机底涂层之上涂覆无机面涂层形成。无机涂层相对于有机涂层,具有优异的耐热性能、耐候性能、耐化学腐蚀性、高硬度等特性,但是其缺点是没有弹性,比较脆,而且对基材的前处理要求较高,附着力很差,本发明人通过以有机涂层为底涂层提高涂层的附着力和改善脆性,无机涂层为面涂层提高有机底涂层硬度、耐化学腐蚀性和耐候性,可以很好的在五金电子,家具家电,烹饪炊具,建筑装饰,汽车涂料等领域具体应用。

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