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Non-stick coating layer with characteristics of high hardness, scratch resistance and corrosion resistance, and coating method thereof

A technology of non-stick coating and corrosion resistance, which is applied in coatings, chemical instruments and methods, layered products, etc., and can solve problems such as poor mechanical properties, poor coating hardness, and low hardness

Active Publication Date: 2013-07-24
ZHEJIANG PFLUON TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical properties of traditional fluorine coatings are poor, and the scratch resistance is reflected by inorganic fillers, such as adding silicon carbide to the non-stick coating to improve the scratch resistance of the coating, but with the increase of inorganic fillers , the compactness of the coating is reduced, and the corrosion resistance is relatively poor
And because the surface coating of the traditional non-stick coating is mainly made of PTFE emulsion to improve the non-stick property, the hardness of the coating is very poor, only 1-2H hardness
Due to the low hardness of the traditional non-stick coating, it is particularly sensitive to scratches and has poor corrosion resistance.

Method used

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  • Non-stick coating layer with characteristics of high hardness, scratch resistance and corrosion resistance, and coating method thereof
  • Non-stick coating layer with characteristics of high hardness, scratch resistance and corrosion resistance, and coating method thereof
  • Non-stick coating layer with characteristics of high hardness, scratch resistance and corrosion resistance, and coating method thereof

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Experimental program
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Effect test

Embodiment 1-6

[0043] Among embodiments 1-6, the components of the topcoat composition are shown in Table 1, and the components of the primer composition are shown in Table 2. By changing the ratio of PES and PEEK in the primer coat, it is investigated that it affects the coating performance Impact.

Embodiment 7-11

[0045] In embodiment 7-11, the composition of top coat composition is shown in Table 1, and the composition of base coat composition is identical with embodiment 4, examines its opposite coating by changing the proportioning of PTFE and PEEK in the base coat. layer performance.

[0046] Table 1 Topcoat composition

[0047]

[0048] Table 2 Undercoat composition

[0049]

[0050] The coating method of embodiment 1~11:

[0051] The substrate is a flat-bottomed stretched aluminum pan for spray coating using the topcoat composition and the undercoat composition of Examples 1-11.

[0052] Firstly, the surface of the substrate is cleaned and roughened, and the roughened treatment is specifically sandblasting.

[0053] Then, mix the undercoat composition evenly and apply it on the surface of the substrate, then dry the undercoat at the temperature of the substrate at 400°C±10°C for 10 minutes, cool to room temperature, and then apply the evenly mixed surface coating composi...

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Abstract

The present invention relates to a non-stick coating layer with characteristics of high hardness, scratch resistance and corrosion resistance. The coating layer comprises a prime coat containing PES and PEEK, and a surface coat containing a fluorocarbon resin and PEEK, wherein the prime coat contains 20-30% of the PES and 20-30% of the PEEK, and the surface coat contains 20-30% of the PEEK and 3-10% of the fluorocarbon resin. The present invention further provides a coating method for the non-stick coating layer. Compared with the conventional aqueous fluorine-containing resin non-stick coating layer, the coating layer of the present invention provides significantly improved hardness, scratch resistance, corrosion resistance and other performances.

Description

technical field [0001] The invention relates to a non-stick coating, in particular to a non-stick coating with high hardness, scratch resistance and corrosion resistance and a coating method thereof. Background technique [0002] Non-stick coatings were first applied to cookware such as non-stick pans, and have a history of more than 50 years so far. For more than 50 years, relevant scientific and technical personnel have developed a variety of non-stick coatings with excellent performance, but their main components are the same, all of which are polytetrafluoroethylene resin (4F, PTFE for short). PTFE is a perfluoropolymer copolymerized with tetrafluoroethylene. PTFE has high crystallinity, large molecular weight, no branched chain in the molecule, fluorine atoms are closely arranged around the C-C skeleton, and C-F bonds It has structural characteristics such as high energy and the shielding effect of fluorine atoms on the main chain. These characteristics determine that ...

Claims

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Application Information

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IPC IPC(8): B32B27/06B32B27/28B32B27/18B32B15/08B32B33/00C09D181/06C09D161/16C09D127/18C09D7/12B05D7/16B05D3/00B05D3/02
Inventor 史航王锡铭关建安许东海付水龙
Owner ZHEJIANG PFLUON TECH CO LTD
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