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Non-stick ceramic paint and coating method thereof

A technology for ceramic coatings and pigments, used in coatings, devices for coating liquids on surfaces, and surface pretreatment.

Active Publication Date: 2013-07-17
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 existing ceramic non-stick coatings have some shortcomings in terms of non-stickiness, toughness, wear resistance, etc., which limits their application.

Method used

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  • Non-stick ceramic paint and coating method thereof
  • Non-stick ceramic paint and coating method thereof
  • Non-stick ceramic paint and coating method thereof

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Embodiment 1-8

[0044] A non-stick ceramic coating, which is formed by mixing two components A and B at a mass ratio of 2:0.5~2, wherein:

[0045] Component A: According to the components and contents in Table 1, mix and grind silica sol, pigments, fillers and dispersing aids for more than 2 hours;

[0046] The particle size of the silica sol is 5-100nm, and the content of silicon dioxide in the silica sol is 20-55% by weight.

[0047] The pigment is selected from one or more of rutile, Taibai, titanium yellow, iron oxide black, iron oxide red, cobalt black, cobalt blue, cobalt green, carbon black, pearlescent or aluminum silver powder according to production requirements; the filler is a particle size smaller than 100μm powder filler, one or more selected from quartz powder, whisker silicon, alumina, diatomaceous earth, silicon carbide or diamond; pigments and fillers have no effect on product quality.

[0048] Component B: According to the components and contents in Table 2, mix the cataly...

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Abstract

The invention relates to a non-stick ceramic paint and a coating method thereof, belonging to the technical field of a process for coating liquid or other fluids on a surface. The non-stick ceramic paint is prepared by mixing a component A and a component B according to a mass ratio of 2: 0.5-2. The component A comprises, by mass, 45 to 100% of silica sol, 0 to 30% of a pigment, 0 to 23% of a filling material and 0 to 2% of a dispersing aid and is prepared by mixing the above-mentioned components and then grinding the components for more than 2 h. The component B is prepared by mixing the following components by mass: 0.2 to 2% of a catalyst, 3 to 15% of silicon fluoride, 2 to 10% of an auxiliary agent, 0 to 10% of an organic solvent, with the balance being at least one silane, wherein the catalyst is formic acid, acetic acid or a mixture of formic acid and acetic acid. The silane has a general molecular formula as represented by RnSi(OR')4-n, wherein R is an alkyl group, an epoxy group or an aryl group, R' is an alkyl group of C1 to C5, and n is equal to 0, 1 or 2. A coating prepared from the paint does not contain substances like PTFE and PFOA, is environment-friendly and energy-saving and has wear resistance, scratch resistance and excellent non-stick performance.

Description

technical field [0001] The invention belongs to the technical field of surface coating liquid or other fluids, and relates to a non-stick ceramic paint and a coating method thereof. Background technique [0002] Non-stick coatings developed rapidly after they were invented and applied in 1958. They are widely used in cooking utensils, small household appliances and other fields, bringing convenience to people's lives. The core of the existing non-stick coating is Teflon --- polytetrafluoroethylene (PTFE), but in recent years, many scientific research reports have pointed out that "Teflon" coatings will release Harmful Substance. Moreover, PTFE will add perfluorooctanoic acid ammonium (PFOA) in the production process. After the chemically stable perfluorooctanoic acid ammonium (PFOA) enters nature and the human body, it will exist for a long time and cannot be decomposed quickly. In animal experiments, low doses of perfluorooctanoic acid ammonium (PFOA) has been confirmed t...

Claims

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Application Information

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IPC IPC(8): C09D183/10C09D7/12B05D7/24B05D3/00B05D3/02
Inventor 史航关建安王锡铭夏焕清
Owner ZHEJIANG PFLUON TECH CO LTD
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