Silicone rubber for contraction type cable accessory and preparation method thereof

A technology of cable accessories and silicone rubber, which is applied in the field of silicone rubber for cold-shrinkable cable accessories and its preparation, can solve the problems of high production process requirements, poor corrosion resistance, and increased production costs, and achieve enhanced corrosion resistance and Effects of mechanical strength, strong corrosion resistance, and low production cost

Inactive Publication Date: 2016-11-23
安徽省浩辉电力股份有限公司
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the silicone rubber commonly used in cold-shrinkable cable accessories has poor corrosion resistance, resulting in a short service life, a long vulcanization time during the production process, and the rubber material is prone to yellowing during the vulcanization process, so the production process requires more high, leading to an increase in production costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A silicone rubber for cold-shrinkable cable accessories proposed by the present invention comprises the following components by weight: 120 parts of methyl vinyl silicone rubber raw rubber, 60 parts of fluorosilicone rubber raw rubber, 20 parts of mica, and 60 parts of white carbon black 30 parts of clay, 20 parts of glass fiber, 8 parts of sulfur, 8 parts of bispentamethylene thiuram tetrasulfide, 3 parts of dicumyl peroxide, 2 parts of zinc oxide, and 4 parts of hydroxyl silicone oil.

[0017] Its preparation method comprises the following steps:

[0018] S1: Set the temperature of the kneader to 70°C. After the temperature is constant, add the corresponding parts by weight of methyl vinyl silicone rubber raw rubber, fluorosilicone rubber raw rubber, white carbon black and clay into the kneader, and mix for 8 minutes to obtain initial mixture;

[0019] S2: Add corresponding weight parts of mica and glass fiber to the above primary mixture, and mix thoroughly. After m...

Embodiment 2

[0022] A silicone rubber for cold-shrinkable cable accessories proposed by the present invention comprises the following components by weight: 150 parts of methyl vinyl silicone rubber raw rubber, 80 parts of fluorosilicone rubber raw rubber, 15 parts of mica, and 50 parts of white carbon black 50 parts of calcium carbonate, 15 parts of glass fiber, 5 parts of sulfur, 10 parts of bispentamethylene thiuram tetrasulfide, 5 parts of dicumyl peroxide, 2 parts of stearic acid, and 6 parts of hydroxyl silicone oil.

[0023] Its preparation method comprises the following steps:

[0024] S1: Set the temperature of the kneader to 80°C. After the temperature is constant, add the corresponding parts by weight of methyl vinyl silicone rubber raw rubber, fluorosilicone rubber raw rubber, white carbon black and calcium carbonate into the kneader, and mix for 10 minutes. get the initial mixture;

[0025] S2: Add corresponding weight parts of mica and glass fiber to the above primary mixture...

Embodiment 3

[0028] A silicone rubber for cold-shrinkable cable accessories proposed by the present invention comprises the following components in parts by weight: 100 parts of methyl vinyl silicone rubber raw rubber, 50 parts of fluorosilicone rubber raw rubber, 25 parts of mica, and 90 parts of white carbon black 25 parts of glass fiber, 10 parts of sulfur, 5 parts of bispentamethylene thiuram tetrasulfide, 2 parts of benzoyl peroxide, 6 parts of stearic acid, and 2 parts of hydroxy silicone oil.

[0029] Its preparation method comprises the following steps:

[0030] S1: Set the temperature of the kneader to 75°C. After the temperature is constant, add the corresponding parts by weight of methyl vinyl silicone rubber raw rubber, fluorosilicone rubber raw rubber and white carbon black into the kneader and mix for 5 minutes to obtain the initial mixture. ;

[0031] S2: Add corresponding weight parts of mica and glass fiber to the above primary mixture, and mix thoroughly. After mixing ev...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a silicone rubber for cold-shrinkable cable accessories and a preparation method thereof. 15-25 parts of mica, 80-100 parts of filler, 15-25 parts of glass fiber, 5-10 parts of sulfur, 5-10 parts of bispentamethylene thiuram tetrasulfide, 2-8 parts of active agent, hydroxyl silicone oil 2 to 6 servings. The silicone rubber proposed by the invention can be applied to the field of cold-shrinkable cable accessories. The silicone rubber has strong corrosion resistance, sealing performance, pressure resistance and insulation, and has a long service life, and the invention also proposes a preparation method of the silicone rubber , the preparation method has the advantages of simple operation, low production cost, high preparation efficiency, fast vulcanization speed, and no yellowing phenomenon of the rubber material during the vulcanization process.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a silicone rubber for cold-shrinkable cable accessories and a preparation method thereof. Background technique [0002] Silicone rubber is widely used in cable accessories, especially in cold-shrinkable cable accessories. Cold-shrinkable cable accessories are injection-vulcanized using elastomer materials (commonly used are silicone rubber and ethylene-propylene rubber), and then expanded , Lined with plastic spiral supports to form parts of various cable accessories. Cold shrinkable cable accessories are mainly used for sealing, dustproof and insulation. Due to its special function, it is often exposed to dust, reagents and oil. However, the silicone rubber commonly used in cold-shrinkable cable accessories has poor corrosion resistance, resulting in a short service life, a long vulcanization time during the production process, and the rubber material is prone to yell...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L83/07C08L83/08C08L83/06C08K13/04C08K7/14C08K3/34C08K3/06C08K5/40C08K3/36
CPCC08L83/04C08L2201/14C08L2203/20C08L2205/02C08L2205/03
Inventor胡宗华杨远亮
Owner安徽省浩辉电力股份有限公司