Water-based ceramic material for inner tank of stainless steel thermos cup and preparation method thereof

Abstract

The invention discloses a water-based ceramic material for the inner tank of a stainless steel thermos cup and a preparation method thereof; 4‑5 parts of methyldiethoxysilane, 2‑3 parts of aminopropyltrimethoxysilane, 16‑18 parts of acrylic resin, 17‑19 parts of inorganic pigments, 6‑7 parts of filler, 0.2‑0.3 parts of hydroxy silicone oil , 2.6-2.9 parts of acetic acid, the balance of deionized water; the sol is a mixture of silica sol and zirconium sol with a mass ratio of 2:1 to 3:1. The ceramic coating of the present invention is sprayed on the inner surface of the stainless steel thermos cup, and the coating thickness is 35-40 μm, which can significantly improve the heat preservation effect of the thermos cup. After pouring boiling water for 6 hours, the water temperature can be kept above 65°C; and the ceramic coating Good adhesion to the substrate, even if the stainless steel substrate is not sandblasted, it can achieve a good adhesion effect only after simple grinding.

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, 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 the environmental protection and health of the cup cannot be guaranteed

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