Water-based ceramic material for inner container of stainless steel vacuum cup and preparation method of water-based ceramic material

Abstract

The invention discloses a water-based ceramic material for an inner container of a stainless steel vacuum cup and a preparation method of the water-based ceramic material. According to 100 parts of the total amount of the coating, the formula comprises 32 to 34 parts of sol, 13 to 15 parts of methyltrimethoxysilane, 4 to 5 parts of dimethyldiethoxysilane, 2 to 3 parts of aminopropyltrimethoxysilane, 16 to 18 parts of acrylic resin, 17 to 19 parts of an inorganic pigment, 6 to 7 parts of a filling material, 0.2 to 0.3 part of hydroxyl silicone oil, 2.6 to 2.9 parts of acetic acid and the balance being deionized water, wherein the sol is a mixture of silica sol and zirconium sol in a mass ratio of 2:1-3:1. The ceramic coating is sprayed on the inner surface of the stainless steel vacuum cup,the thickness of a coating layer is 35-40 [mu]m, the heat preservation effect of the vacuum cup can be remarkably improved, and after boiling water is poured into the vacuum cup for 6 h, the water temperature can be kept at 65 DEG C or above; and the ceramic coating has good adhesion with a base material, and even if the stainless steel base material is not subjected to sand blasting, a good adhesion effect can be achieved only through simple polishing.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based ceramic material for a stainless steel thermos cup inner tank 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, tea, cof...

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Problems solved by technology

[0004] 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, hydr

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