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Silicone rubber insulating adhesive composition and preparation method thereof

A silicone rubber insulation and composition technology, which is applied in the field of silicone rubber, can solve the problems of high density of insulating silicone rubber products, high specific gravity of aluminum hydroxide, and reduced physical and mechanical properties of silicone rubber, and achieves reduction in specific gravity, electrical insulation and resistance. Good aging and improved physical properties

Active Publication Date: 2018-07-03
DONGJUE SILICONE NANJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the patent document with publication number CN 102070907 A adopts methyl vinyl silicone raw rubber, white carbon black and aluminum hydroxide to prepare insulating silicone rubber composition; Flame retardancy and insulation, but the addition of a large amount of aluminum hydroxide will greatly reduce the physical and mechanical properties of silicone rubber. At the same time, due to the high specific gravity of aluminum hydroxide, the density of insulating silicone rubber products is too high
Publication No. CN1821309A proposes adding a compound of lithium salt to the thermosetting silicone rubber composition to maintain the insulating properties of silicone rubber and improve antistatic properties, but the addition of lithium salt reduces the volume resistivity of the silicone rubber composition

Method used

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  • Silicone rubber insulating adhesive composition and preparation method thereof
  • Silicone rubber insulating adhesive composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1) In terms of parts by mass, in a vacuum mixer, add 90 parts of methyl vinyl silicone rubber (Dongjue Organic Co., Ltd. Silicon (Nanjing) Co., Ltd.), 10 parts of dimethylvinyl-terminated, molecular weight of 550,000, vinyl molar content of 0.2% methyl vinyl silicone rubber (Dongjue Silicone (Nanjing) Co., Ltd.), 5 parts of vinyl MQ silicone resin (vinyl content is 1.2-2.7%, M:Q=1, powder product, Hubei Jiayun Chemical Technology Co., Ltd.), 3 parts of hydroxyl silicone oil with a kinematic viscosity of 35cst (Wuxi Quanli Chemical Industry Co., Ltd. Co., Ltd., hydroxyvinyl silicone oil with a vinyl content of 5%), 1 part of hydrogen-containing silicone oil with a hydrogen content of 1.53% (Wuxi Quanli Chemical Co., Ltd.), 0.1 part of zinc stearate, and mix them uniformly in a kneader.

[0036] 2) In step 1), add 15 parts of specific surface area is 200m 2 / g of hydrophobic fumed silica (Guangzhou Jibisheng Technology Industrial Co., Ltd.), 40 parts of magnesium aluminu...

Embodiment 2

[0041] 1) In terms of parts by mass, in a vacuum mixer, add 70 parts of methyl vinyl silicone rubber (Dongjue Organic Co., Ltd. Silicon (Nanjing) Co., Ltd.), 30 parts of dimethylvinyl-terminated, molecular weight of 550,000, vinyl molar content of 0.23% methyl vinyl silicone rubber (Dongjue Silicone (Nanjing) Co., Ltd.), 6 parts of vinyl MQ silicone resin (vinyl content is 1.2-2.7%, M:Q=1, powder product, Hubei Jiayun Chemical Technology Co., Ltd.), 3 parts of hydroxy vinyl silicone oil with a kinematic viscosity of 33cst (Wuxi Quan Li Chemical Co., Ltd., hydroxyvinyl silicone oil, vinyl content is 5%), 1 part of hydrogen-containing silicone oil with a hydrogen content of 1.53% (Wuxi Quanli Chemical Co., Ltd.), 0.5 part of zinc stearate, mixed in a kneader uniform.

[0042] 2) In step 1), add 12 parts of specific surface area is 200m 2 Hydrophobic fumed silica (Guangzhou Jibisheng Technology Industrial Co., Ltd.), 70 magnesium aluminum hydrotalcite (Nantong Advan Chemical Co...

Embodiment 3

[0047] 1) In terms of parts by mass, add 60 parts of methyl vinyl silicone rubber (Dongjue Organic Co., Ltd. Silicon (Nanjing) Co., Ltd.), 40 parts of dimethylvinyl-terminated, molecular weight is 550,000, and the molar content of vinyl is 0.25% methyl vinyl silicone rubber (Dongjue Silicone (Nanjing) Co., Ltd.), 5 parts of vinyl MQ silicone resin (vinyl content is 1.2-2.7%, M:Q=1, powder product, Hubei Jiayun Chemical Technology Co., Ltd.), 4 parts of hydroxy vinyl silicone oil with a kinematic viscosity of 35cst (Wuxi Quan Li Chemical Co., Ltd., hydroxyvinyl silicone oil, vinyl content is 5%), 0.6 parts of hydrogen-containing silicone oil with a hydrogen content of 1.53% (Wuxi Quanli Chemical Co., Ltd.), 0.2 parts of zinc stearate, mixed in a kneader uniform

[0048] 2) Add 10 parts in step 1) with a specific surface area of ​​200m 2 / g of hydrophobic fumed silica (Guangzhou Jibisheng Technology Industrial Co., Ltd.), 100 parts of magnesium aluminum hydrotalcite (Nantong A...

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Abstract

The invention discloses a silicone rubber insulating adhesive composition and a preparation method thereof. The silicone rubber insulating adhesive composition comprises the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 10-30 parts of gas-phase method white carbon black, 40-100 parts of magnesium aluminum hydrotalcite, 5-20 parts of coated ammonium polyphosphate, 5-10 parts of vinyl MQ silicone resin, 1-3 parts of hydroxyl silicone oil, 0.1-1 part of hydrogen-containing silicone oil, 0.05-1 part of an inner mold-releasing agent, and 0.3-2 parts of a vulcanizing agent. The insulating silicone rubber composition provided by the invention has the advantages of low specific gravity, excellent physical properties, good flame retardance, high insulation performance and the like, and can be applied to fields such as electric engineering, electrical engineering and electric power transmission.

Description

technical field [0001] The invention relates to a silicone rubber insulating glue composition and a preparation method thereof, belonging to the technical field of silicone rubber. Background technique [0002] Silicone rubber is a polymer elastomer with both organic and inorganic properties. It has many excellent properties, such as weather resistance, electrical properties, low compression set, heat resistance and cold resistance. It is widely used in electrical equipment, motor vehicles and other fields. , can be used to prepare electrical insulation sheaths, composite insulators, electronic and electrical insulation gaskets, etc. [0003] The application of silicone rubber in electrical appliances, electric power, etc. requires it to have good physical and mechanical properties, flame retardancy and electrical insulation properties. At present, silicone rubber has high physical properties and insulating properties mainly through compounding technology, adding new additi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/04C08L83/05C08K13/06C08K9/10C08K3/32C08K3/26C08K3/36C08K5/09C08K5/098H01B3/28
CPCC08K2003/323C08L83/04C08L2201/02C08L2201/08C08L2205/025C08L2205/035H01B3/28C08K13/06C08K9/10C08K3/32C08K3/26C08K3/36C08K5/098
Inventor 徐党生
Owner DONGJUE SILICONE NANJING CO LTD
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