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Non-stick coating and preparation method and application thereof

A non-stick coating, coating technology, applied in non-stick coating, preparation of non-stick coating, application of non-stick coating in cookware, can solve the problem of short service life, poor corrosion resistance and poor adhesion and other issues, to achieve high-strength support, strong corrosion resistance, and long-term service life

Active Publication Date: 2019-03-12
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a new non-stick coating in order to overcome the defects of easy scratch, poor adhesion and poor corrosion resistance of the non-stick coating for cooking utensils provided by the prior art. Layer, the lower surface of the non-stick coating has enhanced bonding performance relative to the base material, while the upper surface has improved non-stick performance, and the non-stick coating has the advantages of good scratch resistance and corrosion resistance , resulting in an extended service life

Method used

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specific Embodiment approach 1

[0032] According to Embodiment 1, the coating of the present invention includes a polyetheretherketone underlayer attached to a metal substrate and a PTFE-containing coating formed on the polyetheretherketone underlayer as a non-stick surface layer.

specific Embodiment approach 2

[0033] According to Embodiment 2, the coating of the present invention includes a polyetheretherketone underlayer attached to a metal substrate and PFA as a non-stick surface layer formed on the polyetheretherketone underlayer.

specific Embodiment approach 3

[0034] According to Embodiment 3, the coating of the present invention includes a polyether ether ketone bottom layer attached to a metal substrate, and a PTFE-containing coating and PFA as a non-stick surface layer formed sequentially on the polyether ether ketone bottom layer. The inventors of the present invention have found that the polyether ether ketone bottom layer has a synergistic effect with PTFE and PFA as the non-stick surface layer formed sequentially on the polyether ether ketone bottom layer, so that the present invention formed by using the specific embodiment 3 Scratch and corrosion resistance as well as surface hardness and coating adhesion can be optimized for non-stick coatings.

[0035] According to Embodiment 4, the coating of the present invention includes a polyether ether ketone bottom layer attached to a metal substrate and a ceramic coating formed on the polyetheretherketone bottom layer as a non-stick surface layer.

[0036] The material forming the...

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Abstract

The invention relates to the field of cooker coatings, and discloses a non-stick coating and a preparation method and application thereof. The coating comprises a polyetheretherketone (PEEK) bottom layer attached to a metal substrate and a non-stick surface layer formed on the polyetheretherketone bottom layer, the material of the non-stick surface layer is selected from at least one of fluorine-containing resin and ceramic. The non-stick coating is composed of a PEEK bottom layer and a non-stick surface layer coating, and can effectively solve the problems that a cooker coating is easy to scratch and has poor coating adhesion and corrosion resistance. The PEEK bottom layer can provide high-strength supporting force, hardness and binding force for the non-stick surface layer, and the surface layer formed by at least one of fluorine-containing resin and ceramic can provide strong non-stick performance.

Description

technical field [0001] The invention relates to the field of cookware coatings, in particular to a non-stick coating, a method for preparing the non-stick coating and the application of the non-stick coating in cookware. Background technique [0002] Non-stick coatings include PTFE (polytetrafluoroethylene), PFA (copolymer of perfluoroalkoxyethylene and polytetrafluoroethylene) powder coatings, ceramic coatings, etc. PTFE coatings have excellent chemical and thermal stability, self- Lubrication (non-stick) performance, and widely used on the surface of inner pots such as rice cookers, pressure cookers, frying machines, bread machines, etc. However, the Achilles heel of PTFE is its low hardness and low adhesion, and it is very easy to be scratched by hard objects Rubbing can cause the coating to be scratched, thereby exposing the aluminum substrate. [0003] In addition, when water-based PTFE is baked and cured, due to the volatilization of low-molecular-weight substances, t...

Claims

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Application Information

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IPC IPC(8): A47J36/02B05D5/08B05D7/14
CPCA47J36/025B05D5/083B05D7/14
Inventor 李洪伟曹达华李康李兴航杨玲屈雪平
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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