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Aqueous anti-adhesion coating for iron substrate

A water-based coating and anti-adhesion technology, applied in the direction of coating, etc., can solve the problems of local overheating of iron pan, easy sticking pan, toxic enamel fragments, etc., achieve good adhesion and improve thermal fluidity

Inactive Publication Date: 2015-11-25
曾志玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the iron pans treated with enamel and nitriding oxidation have the defects of local overheating and easy sticking. In addition, for enamel, local overheating may also produce toxic enamel fragments
[0005] For the coating process on the surface of the iron pan, in order to prevent the coating from falling off, the iron pan is often coated with oily paint or silicone paint, but its non-stick, high temperature resistance and wear resistance are very poor
In addition, oil-based paints use organic solvents as diluents or dispersion media, which are expensive and not environmentally friendly

Method used

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  • Aqueous anti-adhesion coating for iron substrate
  • Aqueous anti-adhesion coating for iron substrate
  • Aqueous anti-adhesion coating for iron substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-9

[0081] Put the polyethersulfone, titanium dioxide pigment and the mixed solvent of the present invention into the container according to the ratio shown in Table 2, disperse with a high-speed disperser (800-960 rpm) for 30 minutes, and pass through a 200-400 mesh filter Filter, then add polytetrafluoroethylene powder (Solvay (Shanghai) Co., Ltd., 538#) according to the following ratio, and stir at a low speed (60-100 rpm) for about 20 minutes to obtain the anti-blocking coating of the present invention .

[0082] Table 2

[0083]

[0084] *The type number of the mixed solvent corresponds to Table 1, that is, "1#" corresponds to the mixed solution 1# in Table 1, and so on.

preparation example 1-13

[0090] According to the content of the following table 4, the coatings of Examples 1-9 and Comparative Examples 1-3 are sprayed on the iron substrate in different ways (single layer, double layer or multi-layer), and the coatings of Preparation Examples 1-8 are obtained. layer.

[0091] Table 4

[0092]

[0093] The coating products of the preparation examples of the present invention were evaluated according to the test examples described above, and the effects of the coatings of the preparation examples are shown in Table 5.

[0094] table 5

[0095]

[0096] The above results show that: the anti-blocking coating of the present invention reduces the amount of organic solvent due to the use of polyethersulfone and polytetrafluoroethylene in a specific ratio. The prepared coating has good salt corrosion resistance, hardness and wear resistance, especially on iron substrates, and its adhesion and non-stick properties are obviously better than those formed by traditional...

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Abstract

The invention relates to an aqueous anti-adhesion coating. The coating contains polyethersulfone (PES), polytetrafluoroethylene, a pigment, water and a solvent. The aqueous anti-adhesion coating solves the problem of shedding of a film, and makes aqueous coatings be especially suitable for an iron substrate. The coating can be individually used to form the coating layer of an article, and also can be used to form any layer of a multilayer non-adhesion coating.

Description

technical field [0001] The invention relates to an iron-based water-based anti-blocking paint. More specifically, the present invention relates to a water-based anti-stick coating for iron-based, especially iron cookware with anti-stick needs. Background technique [0002] With its good heat resistance, steam resistance, corrosion resistance, colorability, light color, and non-toxic properties, polyethersulfone is widely used as a non-stick coating for cookware as an adhesive for coatings. On the other hand, non-stick coatings for cookware also contain fluoropolymers as anti-blocking agents. [0003] For example, patent CN101594944B utilizes polyethersulfone and polyamide-imide or polyimide, and fluorine-containing resin and aluminum flake as tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer (PFA) powder as coating Primer with good adhesion and corrosion resistance to the substrate. However, the coating is suitable for substrates such as stainless steel and aluminu...

Claims

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Application Information

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IPC IPC(8): C09D127/18C09D181/06C09D7/12
Inventor 曾志玲曾志涛梁文波
Owner 曾志玲
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