A kind of far-infrared emitting high temperature resistant transparent kitchen and bathroom coating and preparation method thereof

Abstract

The invention provides far infrared emission high-temperature-resistant kitchen and bath paint. The far infrared emission high-temperature-resistant kitchen and bath paint is characterized in that the raw materials comprise the following components: 15-30wt% of a component A, 20-30wt% of a component B, 0.5-1wt% of a flatting agent and the balance of a solvent, wherein the flatting agent and the solvent constitute a component C; the component A comprises methyl trialkoxy silane, tetraethyl orthosilicate and water; a molar ratio of the methyl trialkoxy silane to the tetraethyl orthosilicate is (1:1.5)-(1:0.25); the component B comprises reactive hydrophobic siloxane, silicon carbide nanoparticle and water, wherein the average particle size of the silicon carbide nanoparticle is 20-50nm. The coating has a heat-resistance temperature over 350 DEG C, can be used at a high temperature of 250 DEG C for a long time, has a static contact angle with the water of over 105 degrees, far infrared emissivity over 88% and good hydrophobic durability, is capable of satisfying common surface hydrophobic treatment requirements and capable of being applied to the fields such as kitchen and bath, buildings and industry.

Description

technical field [0001] The invention relates to the technical field of chemical products, in particular to a far-infrared emitting high-temperature-resistant transparent kitchen and bathroom coating and a preparation method thereof. Background technique [0002] Hydrophobic coatings have attracted the attention of researchers due to their anti-adhesive properties such as low surface energy, small friction coefficient, easy sliding, and excellent hydrophobic properties; at the same time, the surface of the coating is not easily adhered by other sticky substances or easily removed after adhesion. It is widely used in cooking utensil coating, building surface coating, ship antifouling coating and other fields. For hydrophobic coatings that require a certain heat resistance and solvent resistance, due to long-term use at temperatures above 180 ° C and the erosion of solvents during use, it is necessary to ensure that the coating has a high thermal decomposition temperature and r...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a far-infrared emitting high-temperature resistant transparent kitchen and bathroom coating and its preparation method; mainly to solve the problem that the addition of nano-silicon carbide powder in the coating is easy to agglomerate, and the addition of silicon carbide materials is far away. The infrared emission performance is too low and other problems, and at the same time, the durability and adhesion of high-temperature-resistant hydrophobic coatings are solved; especially, the surface of silicon carbide is modified with reactive hydrophobic active monomers to form a reactive and hydrophobic far-infrared emission coating. Multi-functional components, and then use gradual hydrolysis and condensation to prepare coatings, avoiding the addition of physical blending by conventional methods, excessive agglomeration of silicon carbide, and the ability of the matrix material to absorb and shield silicon carbide from far-infrared rays, and the hydrophobic components are easy to migrate and durable. Poor performance and other problems; it has broad application prospects in the fields of kitchen and bathroom coatings, high-temperature baking coatings, etc.

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