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Wear-resisting ceramic coating for non-stick cookware and preparation method thereof

A wear-resistant ceramic and coating technology, applied in the coating field of non-stick cookware, can solve the problems of losing the protection of the base material, harming the health, affecting the quality and life of the cookware, etc., achieving large surface area, improving bonding strength, and easy to solve wear effect

Active Publication Date: 2012-09-05
JIANGMEN ANNUOTE COOKING UTENSILS MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of living standards, people have higher and higher performance requirements for the surface coating of cookware. They not only work in a highly corrosive environment, but also bear different degrees of wear and tear. Some PTFE, Silicone and other coatings, after long-term friction on the surface, will quickly wear and peel off and lose their protective effect on the substrate, thereby affecting the quality and life of the cooker. In addition, during the cooking process, the peeled non-stick The paint is also easy to mix in food. People eat the non-stick paint into their stomachs without knowing it, which seriously damages people's health.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Use the azeotropic distillation method to treat the alumina fine powder to cover the surface with less polar chemical substances. The operation process of the above azeotropic distillation method is: add n-butanol to the alumina fine powder, and violently Stir for 45 minutes to disperse into a white milky suspoemulsion. Place the above white milky suspoemulsion at 150°C for distillation. The n-butanol-water azeotrope is first evaporated at 93-95°C. After dehydration is completed, the temperature rises to n-butanol The boiling point of the alcohol itself is 117°C, reflux at this temperature for 30 minutes, remove n-butanol by vacuum distillation, and then vacuum-dry to obtain ultrafine alumina micropowders in different crystal forms, which can be oxidized by heterogeneous azeotropic distillation process The water molecules in the aluminum colloid are removed to the maximum extent in the form of azeotrope, and the free hydroxyl groups on the surface are absorbed by -OC ...

Embodiment 2

[0025]1) Use the azeotropic distillation method to treat the alumina fine powder to cover the surface with less polar chemical substances. The operation process of the above-mentioned azeotropic distillation method is: add n-butanol to the alumina fine powder, violently Stir for 45 minutes to disperse into a white milky suspoemulsion. Place the above white milky suspoemulsion at 150°C for distillation. The n-butanol-water azeotrope is first evaporated at 93-95°C. After dehydration is completed, the temperature rises to n-butanol The boiling point of the alcohol itself is 117°C, reflux at this temperature for 30 minutes, distill off n-butanol under reduced pressure, and then dry it in vacuum to obtain ultrafine alumina powder in different crystal forms;

[0026] 2) Add the polyester prepolymer into 75°C water to fully dissolve it, add water-based epoxy resin at a constant temperature, and stir for 1 hour, so that the polyester prepolymer connected to the rigid chain segment of t...

Embodiment 3

[0031] 1) Use the azeotropic distillation method to treat the alumina fine powder to cover the surface with less polar chemical substances. The operation process of the above-mentioned azeotropic distillation method is: add n-butanol to the alumina fine powder, violently Stir for 45 minutes to disperse into a white milky suspoemulsion. Place the above white milky suspoemulsion at 150°C for distillation. The n-butanol-water azeotrope is first evaporated at 93-95°C. After dehydration is completed, the temperature rises to n-butanol The boiling point of the alcohol itself is 117°C, reflux at this temperature for 30 minutes, distill off n-butanol under reduced pressure, and then dry it in vacuum to obtain ultrafine alumina powder in different crystal forms;

[0032] 2) Add the polyester prepolymer into 80°C water to fully dissolve it, add water-based epoxy resin at constant temperature, and stir for 1 hour, so that the polyester prepolymer connected to the rigid chain segment of th...

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PUM

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Abstract

The invention discloses a wear-resisting ceramic coating for non-stick cookware and a preparation method thereof. The coating is composed of a component A and a component B, wherein the weight ratio of the component A to the component B is (2.8-3.2): (1.8-2.0); the component A is composed of silicon dioxide sol, aluminum oxide sol, zirconium oxide sol, water soluble polyester modified epoxy resin, ultrafine aluminum oxide powder processed by azeotropic distillation method, black iron oxides, ultrafine spherical ceramic powder, isopropyl alcohol, deionized water, hydroxyethyl cellulose acetate butyrate and fluorosilicon oil; and the component B is composed of methyl triethoxysilane, amino dimethyldiethoxylsilane, dimethyl dimethoxy silicane, isopropyl alcohol and alcohol. The preparation method comprises the following steps of: mixing the component A and the component B of the coating in a weight ratio of (2.8-3.2): (1.8-2.0); and hermetically stirring and curing the obtained mixture for at least 3 hours under the conditions of 35 DEG C and 800-1000 rpm, thereby obtaining the coating. According to the invention, through carrying out polycondensation reaction on metal oxide colloids and polysiloxane, the bonding strength of a film forming matter is improved.

Description

technical field [0001] The invention relates to a coating for non-stick cookware, in particular to a wear-resistant ceramic coating for non-stick cookware and a preparation method thereof. Background technique [0002] With the improvement of living standards, people have higher and higher performance requirements for the surface coating of cookware. They not only work in a highly corrosive environment, but also bear different degrees of wear and tear. Some PTFE, Silicone and other coatings, after long-term friction on the surface, will quickly wear and peel off and lose their protective effect on the substrate, thereby affecting the quality and life of the cooker. In addition, during the cooking process, the peeled non-stick The coating is also easy to mix in the food. People eat the non-stick coating into their stomachs without knowing it, which seriously damages people's health. Contents of the invention [0003] In order to solve the above technical problems, the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D163/00C09D101/14C09D183/08C09D7/12
Inventor 刘心学程农兵林英杰
Owner JIANGMEN ANNUOTE COOKING UTENSILS MFG
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