High-insulation liquid silicone rubber

A technology of liquid silicone rubber and high insulation, applied in the field of liquid silicone rubber, can solve the problems of poor insulation effect and poor fluidity of insulating liquid silicone rubber, and achieve short production cycle, good fluidity and less material loss Effect

Inactive Publication Date: 2018-12-14
镇江高美新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing insulating liquid silicone rubber has poor fluidity and poor insulating effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 50 parts of organopolysiloxane A, 50 parts of organopolysiloxane B, 10 parts of organopolysiloxane C, 20 parts of aluminum hydroxide, 20 parts of magnesium hydroxide, dimethyldiethoxysiloxane 5 parts of alkane, 2 parts of boric acid, 4 parts of chloroplatinic acid tetramethyldivinyldisiloxane complex, 1 part of KH5601; organopolysiloxane A, organopolysiloxane B, organopolysiloxane Add C into the kneader and knead evenly at room temperature; continue to add aluminum hydroxide and magnesium hydroxide and stir at room temperature for 1.2h; continue to add dimethyldiethoxysiloxane, boric acid, tetramethyldivinyl chloroplatinate Disiloxane complex and KH560 were stirred at room temperature for 0.5h to obtain highly insulating liquid silicone rubber;

[0035] The organopolysiloxane A has an olefinic terminal group and a viscosity of 2000~5000mPa.s at 25°C, and its chemical formula is , the positive integer of n=30~300 in the chemical formula, R represents aliphatic hy...

Embodiment 2

[0039] Weigh 55 parts of organopolysiloxane A, 52 parts of organopolysiloxane B, 14 parts of organopolysiloxane C, 23 parts of aluminum hydroxide, 21 parts of magnesium hydroxide, dimethyl dibutyl ketoximosilane 6 parts, 2 parts of boric acid, 5 parts of chloroplatinic acid isopropanol solution, 1 part of KH5601; add organopolysiloxane A, organopolysiloxane B, and organopolysiloxane C into a kneader and knead evenly at room temperature; Continue to add aluminum hydroxide and magnesium hydroxide and stir at room temperature for 1.5h; continue to add dimethyldibutylketoximosilane, boric acid, chloroplatinic acid isopropanol solution, KH560 and stir at room temperature for 0.6h;

[0040] The organopolysiloxane A has an olefinic terminal group and a viscosity of 2000~5000mPa.s at 25°C, and its chemical formula is , the positive integer of n=30~300 in the chemical formula, R represents aliphatic hydrocarbons, especially vinyl compounds, R 1 Denotes aliphatic saturated or unsatura...

Embodiment 3

[0044] Weigh 51 parts of organopolysiloxane A, 55 parts of organopolysiloxane B, 15 parts of organopolysiloxane C, 27 parts of aluminum hydroxide, 22 parts of magnesium hydroxide, dimethyldiethoxysiloxane 6 parts of alkane, 2 parts of boric acid, 6 parts of chloroplatinic acid tetramethyldivinyldisiloxane complex, 2 parts of KH5502; organopolysiloxane A, organopolysiloxane B, organopolysiloxane Add C into the kneader and knead evenly at room temperature; continue to add aluminum hydroxide and magnesium hydroxide and stir at room temperature for 1-2h; continue to add dimethyldiethoxysiloxane, boric acid, tetramethyldiethylene chloroplatinate base disiloxane complex and KH550 were stirred at room temperature for 0.5-1h;

[0045] The organopolysiloxane A has an olefinic terminal group and a viscosity of 2000~5000mPa.s at 25°C, and its chemical formula is , the positive integer of n=30~300 in the chemical formula, R represents aliphatic hydrocarbons, especially vinyl compounds, ...

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Abstract

The invention provides high-insulation liquid silicone rubber. The high-insulation liquid silicone rubber comprises raw materials in parts by weight as follows: 50-60 parts of organopolysiloxane A, 50-60 parts of organopolysiloxane B, 10-20 parts of organopolysiloxane C, 20-30 parts of aluminium hydroxide, 20-30 parts of magnesium hydroxide, 5-10 parts of a chain extender, 2-5 parts of a tackifier, 4-10 parts of a catalyst and 1-2 parts of a coupling agent. The high-insulation liquid silicone rubber has good flowability and is high in curing speed at high temperature, after-vulcanization is not needed, no by-product is produced in a curing process, and few materials are consumed in the forming process. A preparation process is short in production period and high in efficiency.

Description

technical field [0001] The invention relates to a liquid silicone rubber, in particular to a highly insulating liquid silicone rubber. Background technique [0002] Silicone rubber has excellent properties such as high and low temperature resistance, ultraviolet resistance, radiation resistance, weather resistance, electrical insulation, high air permeability, physiological inertia, etc. Daily necessities and other aspects have been widely used. High-voltage electrical insulator silicone rubber is an addition-type liquid silicone rubber material with excellent mechanical properties, excellent electrical properties, and good tracking resistance. The existing insulating liquid silicone rubber has poor fluidity and poor insulating effect. Contents of the invention [0003] In order to solve the problems existing in the prior art, the invention provides a liquid silicone rubber with high insulating properties. [0004] The technical solution of the present invention to solve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08K13/02C08K3/22C08K3/38
CPCC08K2003/2224C08K2003/2227C08L83/04C08L2205/025C08L2205/03C08K13/02C08K3/22C08K3/38
Inventor 王超陆磊欧金海
Owner 镇江高美新材料有限公司
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