Water-based siloxane coating for outer surface coating of non-stick pan

Abstract

The invention discloses a water-based siloxane coating for an outer surface coating of a non-stick pan. The water-based siloxane coating comprises a single component, the coating is prepared from thefollowing raw materials in parts by weight: 15 to 25 parts of hybrid silane resin; 10 to 15 parts of silicon modified acrylic resin; 5-10 parts of water-based closed polyurethane, 10-15 parts of aminoresin, 30-50 parts of water, 5-10 parts of propylene glycol monomethyl ether, 4-8 parts of diethylene glycol monobutyl ether, 4-58 parts of isopropanol, 0.2-0.5 part of defoamer, 0.2-0.5 part of wetting agent, 1-2 parts of dispersing agent and 0.5-1 part of leveling agent. The water-based system takes water as a main component and a small amount of alcohol ether solvent as an auxiliary component,is environment-friendly and human-friendly, is single-component stoving varnish, is simple in process, only needs a base material according to an existing pretreatment mode, and does not need shot blasting.

Description

technical field [0001] The invention relates to the technical field of non-stick coatings, in particular to a water-based siloxane coating used for coating the outer surface of non-stick pans. Background technique [0002] According to statistics, the total output value of China's domestic non-stick pan surface coatings has reached 2 billion. At present, the outer surface coatings of non-stick pans and utensils used in the market can be divided into three types. Including solvent-based fluorocarbon coatings, solvent-based silicone coatings, and two-component ceramic coatings. [0003] There are a lot of problems in the actual application of the above three coatings, such as: [0004] 1. The solid content of solvent-based coatings currently used is 40%-50%, and 50%-60% are all solvents (xylene, butyl ester, propylene glycol methyl ether acetate, etc.), which are flammable and explosive items. During production and transportation There are major safety hazards in storage an...

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Problems solved by technology

[0005] 2. The two-component coating needs to be matured by the customer 24 hours in advance before use. The process is complex and lacks control over the product, which may easily cause quality disputes

The product must be constructed on the surface of the substrate that has been shot blasted, which will result in poor workshop environment, requiring an independent closed site to complete the shot blasting process, which prolongs the process chain

The cured product must be used up on the same day, and the unused paint can only be destroyed, which wastes materials and increases environmental protection costs

[0006] 3. Fluorocarbon coatings and two-component ceramic coatings have poor color development ability and the color of the coating is not rich

[0007] 4. Fluorocarbon coatings are baked at 380°C, which consumes a lot of energy, which is contrary to the national energy conservation and emission reduction policies

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