Nonstick coating containing graphene material, and preparation method thereof

Abstract

The invention discloses a nonstick coating containing a graphene material. The nonstick coating is formed by a bottom layer and a surface layer; the bottom layer comprises, by weight, 50-90 parts of apolytetrafluoroethylene / polysulfone blend, 0.5-2 parts modified graphene oxide, 1-5 parts of a thermochromic pigment, 0.8-1.2 parts of modified silicon carbide whiskers, 1.5-3 parts of an additive and 15-35 parts of deionized water; and the surface layer comprises, by weight, 35-75 parts of polytetrafluoroethylene resin, 1.5-5 parts of modified calcium carbonate whiskers, 3-8 parts of fatty alcohol polyoxyethylene ether ammonium sulfate, 5-10 parts maleic anhydride and 35-60 parts deionized water. Different raw material components of the bottom layer and the surface layer are reasonably combined, so the obtained nonstick coating has the advantages of good over-temperature prompting function, facilitation of control of the cooking heat, excellent high temperature wear resistance, and prolongation of the service life of a nonstick pan.

Description

technical field [0001] The invention relates to the technical field of non-stick pan coating, in particular to a non-stick pan coating with graphene material and a preparation method thereof. Background technique [0002] According to different functions, non-stick pans can be divided into cooking pans, frying pans, wok pans, and milk pans. According to the non-stick coating system on the inner surface, they can be divided into one-layer system, two-layer system and three-layer system pan. A one-layer system refers to a non-stick layer composed of a single paint; a two-layer system refers to a non-stick layer composed of two types of paint, the bottom layer and a top layer; Non-stick layer. [0003] The over-temperature reminder function of the existing non-stick pan coating has poor effect. When people are cooking, they often cannot clearly know the temperature of the food on the non-stick pan coating, and it is difficult to grasp the cooking heat and cooking time. Cookin...

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Problems solved by technology

[0005] In view of the above deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a non-stick pan with graphene material for the lack of its over-temperature prompt function and the problem of poor high temperature resistance and wear resistance. The pan coating and its preparation method improve the high temperature and wear resistance of the non-stick pan, and prevent the occurrence of problems such as coating cracks, shedding, and pits caused by high-temperature corrosion and oxidation during the use of the non-stick pan. At the same time, it has many advantages such as excellent over-temperature prompt function and long service life, which is more conducive to the control of cooking heat

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