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Method for preparing porous ceramic layer on metal, ceramic, enamel or glass substrate

A technology for porous ceramics and glass substrates, applied to ceramic products, coatings, devices for coating liquid on the surface, etc., can solve problems such as difficult production of ceramic layers, improve chemical resistance, improve temperature stability, and improve The effect of scratch resistance

Inactive Publication Date: 2019-05-17
江苏埃梯恩膜过滤技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a method for preparing a porous ceramic layer on a metal, ceramic, enamel or glass substrate, which solves the problem that it is difficult to produce a ceramic layer on a metal, ceramic, enamel or glass substrate

Method used

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Examples

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the examples.

[0025] Embodiments of the present invention provide a method for preparing a porous ceramic layer on a metal, ceramic, enamel or glass substrate, the method comprising: forming oxides, carbides, nitrides or sulfides having a size between about 3 nm and 100 nm compound powder particles with a hydroxycarboxylic acid and combining at least one solvent and at least one polymeric binder (or a combination of monomers and free radical initiators) to form a mixture having a nanoparticle solids content of greater than about 30% by volume; The mixture is applied to the substrate by dip coating, spin coating, dipping, dipping, spraying, screen printing or film casting; drying and curing the coated mixture into a porous layer.

[0026] The method also includes the step of selecting process parameters to fill the porous layer with a substance.

[0027] The method also includes the step of sele...

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Abstract

The invention provides a method for preparing a porous ceramic layer on a metal, ceramic, enamel or glass substrate, and relates to the field of ceramic layer preparation. The method for preparing theporous ceramic layer on the metal, ceramic, enamel or glass substrate comprises the following steps: combining oxide, carbide, nitride or sulfide powder particles of which the size is about 3 to 10 nm and hydroxyl carboxylic acid with at least one solvent and at least one polymer adhesive (or a combination of a monomer and a free radical initiator), thus forming a mixture of which the nanoparticle solid content is greater than about 30 volume percent; applying the mixture to a substrate through the following modes: dip coating, spin coating, dipping, dipping, spraying, silk-screen printing orthin film casting; drying the coated mixture, and forming a porous layer through curing. According to the method for preparing the porous ceramic layer on the metal, ceramic, enamel or glass substrate, provided by the invention, a dense and porous ceramic layer can be prepared, the chemical resistance of a lamellar substrate can be ensured and improved, the scratch resistance can be improved, andthe temperature stability can be increased.

Description

technical field [0001] The invention relates to the field of ceramic layer preparation, in particular to a method for preparing a porous ceramic layer on a metal, ceramic, enamel or glass substrate. Background technique [0002] The pressing of the ceramic layer on the intended substrate must be carried out at relatively low temperatures, as is currently practiced in the prior art. This means that the particle size of the ceramic powder used initially has to be reduced, since during sintering the diffusion of the particles is enhanced through the larger available surface, which in turn reduces the sintering temperature of the ceramic particles used. In order to form a ceramic layer on a metal, ceramic, enamel or glass substrate, the basic particle size of the ceramic powder used must be below 200 nm, preferably below 100 nm, particularly preferably below 50 nm. The proportion of ceramic particles must be high compared to the proportion of organic binder in the layer to prov...

Claims

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Application Information

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IPC IPC(8): C04B38/06C04B35/622C04B35/488C04B41/80C04B41/88B05D7/14B05D7/24
Inventor 陆天怡李雪
Owner 江苏埃梯恩膜过滤技术有限公司
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