Aqueous ceramic non-stick coating material for kitchenware surfaces and preparation method for aqueous ceramic non-stick coating material

A technology of non-stick coatings and ceramic coatings, applied in the field of materials, can solve the problems of high-end cookware and baking utensils that cannot meet the long-lasting non-stick and durability, the molecular structure of the surface state is easily destroyed, and reduce the hardness of ceramic coatings, etc., to achieve good coating Layer toughness and long-lasting non-stick performance, high hardness, long-lasting effect

Inactive Publication Date: 2016-07-20
卡秀万辉(广州)高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the ceramic coating itself has high hardness, large internal stress, and poor toughness. During use, it is easy to be bumped, impacted, scratched, etc., causing poor adhesion, cracking or falling off. By adding flakes or layers to the ceramic coating Fillers, whiskers, fibers and other methods can improve the microstructure and toughness of the coating, but at the same time reduce the hardness, wear resistance, water boiling resistance and non-stick properties of the ceramic coating itself.
In addition, the current ceramic non-stick coatings mainly rely on silicone oil additives such as polydimethylsiloxane or fluorosilane to provide non-stick properties. And sauce, vinegar and caustic detergent, etc., the surface state of the coating and the molecular structure of silicone oil additives are easily destroyed, resulting in a rapid decline in the non-stick performance of the coating, which cannot meet the long-lasting requirements of high-end cookware and bakeware. Tackiness and Durability Requirements

Method used

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  • Aqueous ceramic non-stick coating material for kitchenware surfaces and preparation method for aqueous ceramic non-stick coating material
  • Aqueous ceramic non-stick coating material for kitchenware surfaces and preparation method for aqueous ceramic non-stick coating material
  • Aqueous ceramic non-stick coating material for kitchenware surfaces and preparation method for aqueous ceramic non-stick coating material

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Experimental program
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preparation example Construction

[0018] The invention discloses a method for preparing a water-based ceramic non-stick coating used on the surface of kitchen utensils, in particular a method for preparing a high-temperature-resistant water-based ceramic non-stick coating made of polytetrafluoroethylene on the surface of high-grade kitchen utensils, which comprises the following steps: its formula The ratio is by weight percentage:

[0019] The preparation of the primer includes first filtering the water-based ceramic coating resin into the stirring container with a 300-mesh nylon mesh, adding the rheological additive during stirring, and stirring and dispersing at a high speed of 1500-2000RPM for 15-20min, and then adding it while stirring Inorganic high temperature resistant pigment 15-20% and wear-resistant filler 0-5% and disperse evenly, then disperse at 1500-2000RPM at high speed for 10-15min, and finally pre-mix ethylene glycol monobutyl ether 1-3% and deionized water 1 Add -3% to the previous item and ...

Embodiment 1

[0031] Embodiment 1, 2, 3 and 4 middle primer aging processes are all: according to the ratio, the third component of the primer is first added to the second component of the primer and stirred evenly, and then the second and third groups Add it to the first component of the primer, stir and mature at 2000RPM for 2h.

[0032] The aging process of the top coat: Example The aging process of the top coat: according to the proportion, first add the fifth component of the top coat to the second component of the top coat and stir evenly, then mix the second component and the fifth component Add them together to the fourth component of the top coat, stir and mature at 2000RPM for 2h.

Embodiment 2

[0033] Embodiment two, the ripening process of three and four top coats: first add the second component of the top coat to the fourth component of the top coat and stir and ripen at a speed of 2000RPM for 2h., then add the fifth component of the top coat to 200 Add -500RPM speed into the second component and the fourth component and stir to disperse for 5-10min.

[0034] Use the IwataW-101 spray gun with a diameter of 1.3mm to spray the coatings that have been cured according to their respective curing processes, and use air spraying to spray evenly and pre-sandblast them (surface roughness Ra=2.5-3.5μm) and preheat to 50-60°C. For stainless steel frying pans, first spray the base coat, and then wet-on-wet spray the top coat, so that the thickness of the coating film is between 40-45 μm.

[0035] In Example 1, surface dry at 100°C / 5-10min first, and then cure at 220°C / 20min; in Example 2, 3, and 4, dry at 100°C / 5-10min first, and then cure at 400°C / 10min. Then compare The prope...

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Abstract

The invention discloses an aqueous ceramic non-stick coating material for kitchenware surfaces. The coating material comprises a base coat and a top coat, wherein the base coat contains a first component, a second component and a third component, the part ratio of the first component to the second component to the third component is 3.33: 1.65: 0.02, the top coat comprises a fourth component and the second component, and the part ratio of the fourth component to the second component is 3.33: 1.65; the first component contains aqueous ceramic coating resin, rheologic adjuvants, inorganic high-temperature resistant pigments, wear-resistant fillers, ethylene glycol monobutyl ether and deionized water; the second component contains silane and non-stick adjuvants; the third component is formic acid; and the fourth component contains ceramic coating resin, pearlescent pigments, ethylene glycol methyl-n-butyl ether and deionized water. The invention also discloses a preparation method for the aqueous ceramic non-stick coating material for the kitchenware surfaces. By implementing the aqueous ceramic non-stick coating material for the kitchenware surfaces and the preparation method for the aqueous ceramic non-stick coating material, disclosed by the invention, the coating material which has the advantages of high luster, smooth surface, high hardness, good toughness, lasting non-stick property and good stability can be prepared.

Description

technical field [0001] The invention relates to the field of materials, in particular to a water-based ceramic non-stick coating used on the surface of kitchen utensils and a preparation method thereof. Background technique [0002] Since the appearance of ceramic coatings, it has played an increasingly important role in the field of coatings with its unique properties. As a new high-temperature non-stick coating, water-based ceramic non-stick coating has developed rapidly in recent years. It is mainly composed of inorganic compounds and prepared by sol-gel method. It has excellent cold and hot hardness and outstanding temperature resistance, wear resistance and corrosion resistance. It is widely used in cookware and bakeware. And small household appliances and other occasions. [0003] However, the ceramic coating itself has high hardness, large internal stress, and poor toughness. During use, it is easy to be bumped, impacted, scratched, etc., causing poor adhesion, crac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00
CPCC09D1/00
Inventor 李良良陈林生
Owner 卡秀万辉(广州)高新材料有限公司
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