Water-based ceramic coating for outer wall of stainless steel thermos cup and preparation method thereof

Abstract

The invention discloses a water-based ceramic coating for the outer wall of a stainless steel thermos cup and a preparation method thereof; the total amount is based on 100 parts by weight, and the water-based ceramic coating is composed of the following components: 36-39 parts of sol, 31-33 parts of acrylic resin , 11-14 parts of inorganic pigments, 17-19 parts of fillers, 0.2-0.3 parts of surface tension modifier, and the balance of deionized water; the acrylic resin is a cationic acrylic resin containing basic groups. The ceramic coating formula of the present invention uses silica sol and zirconium sol to mix and use in a certain proportion, which can effectively delay heat conduction; and can significantly improve the thermal insulation performance of the cup. At the same time, the surface tension regulator is added to the ceramic coating. After the coating is cured, the additive can migrate to the coating surface, which significantly increases the surface tension of the ceramic coating, so that the pattern printed with the subsequent ink can be firmly attached to the ceramic coating, avoiding the appearance of coating. Layer peeling phenomenon.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based ceramic coating for the outer wall of a stainless steel thermos cup and a preparation method thereof. Background technique [0002] Along with the raising of people's living standard, daily drinking water mode and drinking water cup are also changing. It has developed from traditional enamel jars, glass cups, ceramic cups, purple sand cups and other utensils to stainless steel thermos cups with thermal insulation properties. The stainless steel thermos cup is mainly produced by a combination of inner and outer double-layer stainless steel materials through vacuum technology. The vacuum structure of the stainless steel thermos cup can effectively control the three heat transfer methods of heat conduction, heat convection and heat radiation, so as to achieve the purpose of heat preservation, cold preservation and fresh preservation. It can be used to hold water, te...

AI Technical Summary

Problems solved by technology

[0005] The Chinese invention patent with the publication number CN201610226583.9 discloses a water-based transparent weather-resistant coating for a thermos cup. The coating uses fluorocarbon emulsion, styrene-acrylic emulsion, hydroxyl acrylic resin and epoxy soybean oil as film-forming substances, and amino resin as The curing agent and film-forming substances are all organic resins, so environmental protection and health cannot be guaranteed

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