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A kind of coating sealing material, its preparation method and its application

A coating and sealing agent technology, applied in coatings, anti-corrosion coatings, etc., can solve the problems of reducing costs, reducing process steps, not indicating whether the surface antifouling layer has a sealing effect, whether the coating is wear-resistant, etc., to achieve excellent Corrosion resistance, long-term protection effect, excellent anti-water biosorption effect

Inactive Publication Date: 2017-03-08
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the effect of reducing process steps and cost is not achieved, and it is not pointed out whether the surface antifouling layer has a sealing effect and whether the coating is wear-resistant

Method used

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  • A kind of coating sealing material, its preparation method and its application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] One for plasma spraying Al 2 o 3 -13wt.%TiO 2 The sealing material of the ceramic coating, the composition of the sealing material mainly includes silicone resin sealing agent A, micron-sized talc powder B, mixture C, auxiliary agent and absolute ethanol solvent, and the described silicone resin sealing agent A, micron-sized The mass proportion of talcum powder B and mixture C is 100:60:120, and the additives include surface additive BYK-3700, dispersant BYK-161, defoamer BYK-066N, and leveling agent BYK-306. The auxiliary agent accounts for 6% of the total mass, the mass ratio of the silicone resin sealing agent A and the absolute ethanol solvent is 1:1.2, and the mixture C includes modified nano-scale silicon dioxide and micron-scale titanium dioxide, wherein The nanometer silicon dioxide is modified by pickling and drying, wherein the content of the modified nanometer silicon dioxide accounts for 75% of the total mass of the mixture C.

[0024] The preparation met...

Embodiment 2

[0035] One for plasma spraying Cr 2 o 3 -8wt.%TiO 2 The sealing material of the ceramic coating, the composition of the sealing material mainly includes silicone resin sealing agent A, micron-sized talc powder B, mixture C, auxiliary agent and absolute ethanol solvent, and the described silicone resin sealing agent A, micron-sized The mass ratio of talc powder B and mixture C is 100:50:100, and the additives include surface additive BYK-3700, dispersant BYK-161, defoamer BYK-066N, and leveling agent BYK-306. The auxiliary agent accounts for 7% of the total mass, the mass ratio of the silicone resin sealing agent A and the absolute ethanol solvent is 1:1.3, and the mixture C includes modified nano-scale silicon dioxide and micron-scale titanium dioxide, and the nano-scale The grade silicon dioxide is modified by pickling and drying, wherein the content of the modified nanometer grade silicon dioxide accounts for 100% of the total mass of the mixture C.

[0036] The preparati...

Embodiment 3

[0047] A kind of ZrO for plasma spraying 2 The sealing material of the ceramic coating, the composition of the sealing material mainly includes silicone resin sealing agent A, micron-sized talc powder B, mixture C, auxiliary agent and absolute ethanol solvent, and the described silicone resin sealing agent A, micron-sized The mass ratio of talc powder B and mixture C is 100:40:60, and the additives include surface additive BYK-3700, dispersant BYK-161, defoamer BYK-066N, and leveling agent BYK-306. The auxiliary agent accounts for 5% of the total mass, the mass ratio of the silicone resin sealing agent A and the absolute ethanol solvent is 1:1.1, and the mixture C includes modified nano-scale silicon dioxide and micron-scale titanium dioxide, and the nano-scale The grade silicon dioxide is modified by pickling and drying, wherein the content of the modified nanometer grade silicon dioxide accounts for 50% of the total mass of the mixture C.

[0048] The preparation method of ...

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Abstract

The invention discloses a coating layer sealing material including an organic silicon resin hole sealing agent A, a micron-size talcum powder B, a mixture C, an auxiliary agent and an anhydrous ethanol solvent, the mass ratio of the organic silicon resin hole sealing agent A to the micron-size talcum powder B to the mixture C is 100 to (40-60) to (60-120), the auxiliary agent accounts for 5-7% of the total mass, and the mass ratio of the organic silicon resin hole sealing agent A to the anhydrous ethanol solvent is 1 to (1-1.3); the mixture C includes modified nano-size silicon dioxide and micron-size titanium dioxide, wherein the content of the modified nano-size silicon dioxide accounts for 50-100% of the total mass of the mixture C. The invention also discloses a preparation method of the coating layer sealing material, and a use of the coating layer sealing material for sealing treatment of a plasma sprayed ceramic coating layer. The coating layer after being sealed by the material has both excellent corrosion resistance and water biological adsorption resistance.

Description

technical field [0001] The invention relates to a coating sealing material, a preparation method and application thereof, and belongs to the technical field of material corrosion and protection. Background technique [0002] Plasma sprayed ceramic coatings with high hardness and wear resistance are prepared on the surface of metal workpieces, which have been widely used in metallurgy, mining, aerospace and other fields. However, there are a considerable number of holes (5% to 8%) in the ceramic coating, which is determined by the characteristics of the plasma spraying process and cannot be avoided. Under normal atmospheric conditions, these holes can store oil, and the coating has good lubricating and friction-reducing functions. However, in complex corrosion environments such as water environments, pores as corrosion channels are the root cause of corrosion of metal substrates. The sealing treatment of the coating with the help of the sealing agent can effectively prevent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04C09D7/12C09D5/08C04B41/85
Inventor 周泽华王泽华易于王国伟江少群王刚邵佳
Owner HOHAI UNIV
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