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Treatment method for moisture-proof surface of resin-based insulating material

A technology for insulating materials and processing methods, which is applied in the field of preparation of moisture-proof surfaces of resin-based insulating materials, can solve problems such as tunnel humidity, large dust, insulation damage, tunnel water vapor, and large dust, and achieve low cost, increased roughness, good stability effect

Inactive Publication Date: 2015-08-26
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Humidity and dust in the tunnel are relatively high, friction between train wheels and rails produces a large amount of steel powder, water vapor and dust in the tunnel are relatively large, impurities in various parts are mixed and attached to the insulation pad, resulting in insulation damage

Method used

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  • Treatment method for moisture-proof surface of resin-based insulating material
  • Treatment method for moisture-proof surface of resin-based insulating material
  • Treatment method for moisture-proof surface of resin-based insulating material

Examples

Experimental program
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Effect test

example 1

[0034] First, use 20-mesh brown corundum sand pellets to sandblast the surface of the resin-based insulating pad for subway screen doors under 0.6MPa air pressure until the surface of the workpiece is completely roughened. Then use 180-mesh glass sand pellets and 0.4MPa air pressure. Next, sand blast the entire surface of the insulating pad again to build a multi-level rough structure, such as figure 1 and 2 As shown; put the workpiece into 10g / L NaOH aqueous solution, treat it in a water bath at 50°C for 15 minutes, take it out, put it in clean water and ultrasonically clean it for 10 minutes, and then use oxygen plasma after drying for 20 minutes at a power of 18W; finally, Place the insulating mat in a vacuum drying oven, add 0.1 mL of fluorinated siloxane dropwise next to it, and place it in an airtight place for 1 hour to obtain an insulating mat with moisture-proof and anti-condensation functions.

[0035] The contact angle measurement results show that the contact angl...

example 2

[0037]First, use 80-mesh white corundum and glass sand mixed shot (mixed by weight ratio 1:1), sandblast the insulating material under 0.5MPa air pressure until the surface of the workpiece is completely roughened, then use 200-mesh corundum shot, Under the condition of 0.5MPa air pressure, the entire surface of the insulating material is sandblasted again, and the sand shot can be one or more mixtures of brown corundum, white corundum, glass sand, corundum or stainless steel sand;

[0038] Put the workpiece into 20g / L H 2 SO 4 Aqueous solution, treated in a water bath at 80°C for 10 minutes, after taking it out, put it in clean water and ultrasonically clean it for 15 minutes, then use oxygen plasma after drying, and treat it with 18W power for 30 minutes; finally, put the insulating workpiece in a vacuum drying oven, next to it Add 0.2mL of fluorinated siloxane dropwise and place it airtight for 1.2h, then the resin-based insulating material will have a moisture-proof and a...

example 3

[0040] First, use 150-mesh corundum sand shot to sandblast the insulating material under 0.4MPa air pressure until the surface of the workpiece is completely roughened, then use 320-mesh glass sand shot to blast the insulating material again under 0.4MPa air pressure. Sand blasting treatment; put the workpiece into 30g / L NaOH aqueous solution, treat it in a water bath at 60°C for 20 minutes, take it out and put it in clean water for ultrasonic cleaning for 20 minutes, and then use oxygen plasma after drying for 40 minutes under the condition of 18W power; Place the insulating workpiece in a vacuum drying oven, add 1mL of fluorinated siloxane dropwise next to it, and place it in an airtight place for 2 hours, so that the resin-based insulating material has a moisture-proof and anti-condensation surface.

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Abstract

The invention relates to a treatment method for a moisture-proof surface of a resin-based insulating material. The treatment method comprises the following steps: using blasting shots different in number for two-step blasting treatment, to build a multilevel rough structure; then placing the multilevel rough structure into a strong alkali or acid solution, to further roughen the multilevel rough structure and activate the surface; modifying the structure with fluorosilane after oxygen plasma treatment, so that the surface of the insulating material has moisture resistance and condensation resistance. The treatment method is simple in preparation process, free of pollution, low in cost, and suitable for promotion and application.

Description

technical field [0001] The invention relates to a method for preparing a moisture-proof surface of a resin-based insulating material. Background technique [0002] Insulation materials are widely used in people's daily life and industrial production. At the beginning of the 20th century, industrial synthetic plastic phenolic resin first came out, which has good electrical properties and high heat resistance. The advent of trichlorobiphenyl synthetic insulating oils has brought about a leap in the specific characteristics of power capacitors. Since the 1930s, synthetic insulating materials have developed rapidly, mainly including acetal resin and neoprene rubber. The emergence of these synthetic materials has played a major role in the development of electrotechnical technology. After the 1940s, unsaturated polyester and epoxy resin came out. The appearance of powder mica paper has freed people from the plight of scarcity of flake mica resources. Since the 1950s, new mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/12C08J7/14
Inventor 张友法安力佳余新泉陈锋
Owner SOUTHEAST UNIV
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