Non-stick pan coating based on interpenetrating network structure and preparation method thereof

Abstract

The invention relates to the technical field of non-stick pan coatings, in particular to a non-stick pan coating based on an interpenetrating network structure. The non-stick pan coating is formed by mixing an epoxy resin system and a polyurethane resin system according to a mass ratio of (5-7):(2-3), wherein the epoxy resin is prepared from the following components in parts by mass: 30 to 50 parts of alicyclic epoxy compound, 80 to 90 parts of glycidyl amine type resin, 3 to 5 parts of modified carbon fiber, 2 to 5 parts of pentaerythritol tetra (3, 5-di-tert-butyl-4-hydroxyhydrocinnamate), 3 to 5 parts of zirconia ceramic, 11 to 12 parts of aluminum oxide ceramic, 10 to 15 parts of zinc oxide ceramic, 13 to 17 parts of silicon nitride ceramic and 2 to 5 parts of polyethylene wax. According to the invention, the coating has a uniform resin crosslinking system and can be tightly connected with filled zirconia ceramic, alumina ceramic, zinc oxide ceramic and silicon nitride ceramic, so that the prepared coating can maintain the high-temperature-resistant effect of epoxy resin and the elasticity of polyurethane, is good in stability at high temperature, can adapt to the high-temperature swelling effect of a pot body, can be used as a coating for the pot body, and improves the integrity of the non-stick pan.

Description

technical field [0001] The invention relates to the technical field of non-stick pan coatings, in particular to a non-stick pan coating based on an interpenetrating network structure and a preparation method thereof. Background technique [0002] Wok is a kind of traditional kitchen utensils. So far, many families still use wok to cook food. Wok cooking food has many disadvantages. Generally, wok is made of iron alloy, and its heat distribution is uneven, which is easy to produce hot spots. And burnt food, its pot is heavy, not easy to clean, easy to get rusty, and when oil is used for a long time, soot is big. Therefore, it is more common to add a coating to the wok to make the wok into a non-stick pan. [0003] The interpenetrating network polymer is formed by the intersection and interpenetration of multi-molecular chain substances, and the formed coating has multiple effects, which can effectively avoid the shortcomings of burnt food in the existing frying pan. [0004...

AI Technical Summary

Problems solved by technology

[0004] However, the non-stick pans using coatings in the prior art are easy to scratch and are not resistant to high-intensity cleaning

For example, the patent No. is CN202010766162.1 for a non-stick coating and its preparation method and pot, which uses a middle coating to form a middle film on the substrate, and uses an outer coating on the side of the middle film facing away from the substrate. Forming an outer film; heating and curing the middle film and the outer film, the middle film is cured to form an intermediate coating, and the outer film is cured to form an outer coating, but its adhesive body is single, and cooking at high temperature The durability of the medium coating is poor; another example is the preparation method of a high-temperature-resistant and wear-resistant non-stick coating with the patent number CN202010690462. However, due to the high mechanical strength, it is difficult to adapt to the expansion and contraction of the wok body when the temperature of the frying pan changes frequently, resulting in the coating being easily peeled off after long-term use.