Acidic inorganic repairing agent as well as preparation method and repairing method thereof

A repairing agent, inorganic technology, applied in the field of acidic inorganic repairing agent and its preparation, can solve the problems of corrosion, repairing agent not suitable for high temperature use, etc.

Active Publication Date: 2022-03-11
北京玻钢院复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an acidic inorganic repairing agent to solve the technical problems that the repairing agent in the prior art is not suitable for high temperature use and is corrosive to alkali-resistant ceramics and their composite products.

Method used

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  • Acidic inorganic repairing agent as well as preparation method and repairing method thereof

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Effect test

Embodiment 1

[0024] The acidic inorganic repairing agent of the present embodiment is made up of the following raw materials of weight part:

[0025] 5 parts of silica sol, 50 parts of silicon dioxide powder, 0.1 part of boron nitride powder, 10 parts of glass glaze, 1 part of water, 25 parts of ethanol.

[0026] Wherein, the pH value of the silica sol is 2, and the concentration is 60%; the silicon dioxide is silica powder with a fineness of more than 5000 mesh and a purity of more than 99.0%; the boron nitride is a fineness of more than 200 mesh , Boron nitride powder with a purity of more than 99.0%. The water is high-purity water, and ethanol is analytically pure.

[0027] The preparation method of the acidic inorganic repairing agent described in this embodiment is as follows: take silica sol, silicon dioxide, boron nitride, and glass glaze and mix them evenly.

[0028] The repair method of the acidic inorganic repairing agent described in this embodiment is as follows: apply the ac...

Embodiment 2

[0030] The acidic inorganic repairing agent of the present embodiment is made up of the following raw materials of weight part:

[0031] 100 parts of silica sol, 25 parts of silicon dioxide powder, 10 parts of boron nitride powder, 0.1 part of glass glaze, 25 parts of water, and 13 parts of ethanol.

[0032] Wherein, the pH value of the silica sol is 5, and the concentration is 15%; the silica powder is silica powder with a fineness of 5000 mesh or more and a purity of 99.0% or more; the boron nitride is a fineness of 200 mesh or more , Boron nitride powder with a purity of more than 99.0%. The water is high-purity water, and ethanol is analytically pure.

[0033] The preparation method of the acidic inorganic repairing agent described in this embodiment is as follows: take silica sol, silicon dioxide, boron nitride, and glass glaze and mix them evenly.

[0034] The repairing method of the acidic inorganic repairing agent described in this embodiment is as follows: apply the...

Embodiment 3

[0036] The acidic inorganic repairing agent of the present embodiment is made up of the following raw materials of weight part:

[0037] 52 parts of silica sol, 1 part of silicon dioxide powder, 5 parts of boron nitride powder, 20 parts of glass glaze, 13 parts of water, and 1 part of ethanol.

[0038] Wherein, the pH value of the silica sol is 4, and the concentration is 37%; the silica is silica powder with a fineness of 5000 mesh or more and a purity of 99.0% or more; the boron nitride is a fineness of 200 mesh or more , Boron nitride powder with a purity of more than 99.0%. The water is high-purity water, and ethanol is analytically pure.

[0039] The preparation method of the acidic inorganic repairing agent described in this embodiment is as follows: take silica sol, silicon dioxide, boron nitride, and glass glaze and mix them evenly.

[0040] The repairing method of the acidic inorganic repairing agent described in this embodiment is as follows: apply the acidic inorg...

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Abstract

The invention provides an acidic inorganic repairing agent as well as a preparation method and a repairing method thereof. The acidic inorganic repairing agent comprises silica sol, silicon dioxide, boron nitride and glass glaze, wherein the pH value of the silica sol is 2-5. The acidic inorganic repairing agent provided by the invention can avoid the problem of high-temperature decomposition of organic resin, is suitable for high-temperature use, and has a stable and lasting repairing effect on non-alkali-resistant ceramics and composite material products thereof.

Description

technical field [0001] The invention belongs to the technical field of inorganic non-metallic materials. Specifically, the invention relates to an acidic inorganic repairing agent, a preparation method and a repairing method thereof. Background technique [0002] Due to the structural characteristics and material characteristics of ceramics and their composite materials, it is easy to cause surface fibers to fall off and collapse during product machining, resulting in pits and other defects on the product surface. The depth of defects is generally within 1mm. Due to the long preparation period and high cost of ceramics and their composite products, if the product is scrapped due to the appearance quality, it will be a huge economic loss for the enterprise, and it will also have a serious impact on the production progress of the entire product. [0003] In order to solve the above problems, Chinese patent document CN110819228A discloses a heat-insulating, ablation-resistant a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/24C04B35/14C04B41/87C04B41/85
CPCC04B28/24C04B35/14C04B41/87C04B41/85C04B41/5064C04B2235/386C04B2235/36C04B2201/50C04B14/06C04B14/327C04B14/22C04B41/5035C04B41/5022
Inventor 高龙飞柴笑笑李晶李松石广兴彭喆安楠肖沅谕张桐
Owner 北京玻钢院复合材料有限公司
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