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Insulation silicone rubber applied to cold shrink cable accessories and preparation method of insulation silicone rubber

A technology of cable accessories and insulating silicon, which is applied in the field of insulating silicone rubber for cold-shrinkable cable accessories and its preparation, which can solve the problems of large permanent deformation at fixed elongation, poor retractability, and poor fluidity of rubber materials, and achieve low plasticity , good retractability, easy quality control effect

Inactive Publication Date: 2017-02-01
GUILIN YUTIAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insulating silicone rubber for cold-shrinkable cable accessories in the prior art has problems such as large permanent deformation at constant elongation, poor retractability, and poor fluidity of the rubber material during production and processing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Insulating silicone rubber for cold-shrinkable cable accessories in this embodiment is made of the following raw materials: 100 g of methyl vinyl silicone rubber with a vinyl molar content of 0.05%, and a surface area of ​​200 m 2 / g fumed white carbon black 45g, vinyl hydroxy silicone oil 5g, dimethyldiethoxysilane 10g, fumed titanium dioxide 2g, zinc stearate 1g and silane coupling agent 1g.

[0042] The preparation method of the insulating silicone rubber for the cold-shrinkable cable accessories of the above-mentioned embodiment comprises the following steps:

[0043] (1) Take 100 g of methyl vinyl silicone rubber with a vinyl molar content of 0.05%, put it into the kneader, knead for 5 minutes, and stop the machine;

[0044] (2) Take 5g of vinyl hydroxy silicone oil, 10g of dimethyldiethoxysilane, and 1g of silane coupling agent, put them into the kneader, and knead for 5 minutes to obtain the mixture 1, stop the machine;

[0045] (3) Get 2g of fumed titanium diox...

Embodiment 2

[0057] Insulating silicone rubber for cold-shrinkable cable accessories in this embodiment is made of the following raw materials: 100 g of methyl vinyl silicone rubber with a vinyl molar content of 0.04%, and a surface area of ​​200 m 2 / g fumed white carbon black 30g, vinyl hydroxy silicone oil 3g, dimethyldiethoxysilane 5g, fumed titanium dioxide 1g, zinc stearate 0.5g and silane coupling agent 0.5g.

[0058] The preparation method of the insulating silicone rubber for the cold-shrinkable cable accessories of the above-mentioned embodiment comprises the following steps:

[0059] (1) Take 100 g of methyl vinyl silicone rubber with a vinyl molar content of 0.04%, put it into the kneader, knead for 5 minutes, and stop the machine;

[0060] (2) Take 3g of vinyl hydroxy silicone oil, 5g of dimethyldiethoxysilane, and 0.5g of silane coupling agent, put them into the kneader, and knead for 8 minutes to obtain the mixture 1, stop the machine;

[0061] (3) Get 1g of fumed titanium ...

Embodiment 3

[0073] The insulating silicone rubber for cold-shrinkable cable accessories in this embodiment is made of the following raw materials: 50 g of methyl vinyl silicone rubber with a vinyl molar content of 0.04%, and methyl vinyl silicon rubber with a vinyl molar content of 0.07%. Rubber 50g, surface area 380m 2 / g fumed white carbon black 35g, vinyl hydroxy silicone oil 5g, dimethyldiethoxysilane 5g, fumed titanium dioxide 2g, zinc stearate 0.5g and silane coupling agent 1g.

[0074] The preparation method of the insulating silicone rubber for the cold-shrinkable cable accessories of the above-mentioned embodiment comprises the following steps:

[0075] (1) Take 50 g of methyl vinyl silicone rubber with a vinyl molar content of 0.04%, and 50 g of methyl vinyl silicone rubber with a vinyl molar content of 0.07%, put them into the kneader, knead for 10 minutes, and stop the machine;

[0076] (2) Take 5g of vinyl hydroxy silicone oil, 5g of dimethyldiethoxysilane, and 1g of silane ...

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Abstract

The invention discloses an insulation silicone rubber applied to cold shrink cable accessories and a preparation method of the insulation silicone rubber, and belongs to the technical field of cold shrink cable accessory materials. The insulation silicone rubber is prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber, 30-45 parts of gas-phase method white carbon black, 3-5 parts of hydroxyl silicone oil, 5-10 parts of dimethyldiethoxysilane, 1-2 parts of gas-phase titanium dioxide, 0.5-1 part of zinc stearate and 0.5-1 part of a silane coupling agent. The invention also discloses the preparation method of the insulation silicone rubber applied to the cold shrink cable accessories. The insulation silicone rubber applied to the cold shrink cable accessories has the properties such as good retraction, resistance to ultraviolet aging, excellent insulation property and the like; the rubber is good in flowability when the rubber is used for producing and processing the cold shrink cable accessories.

Description

technical field [0001] The invention relates to insulating silicone rubber for cold-shrinkable cable accessories and a preparation method thereof, belonging to the technical field of cold-shrinkable cable accessory materials. Background technique [0002] Cold-shrinkable cable accessories are evolved from heat-shrinkable cable accessories. It overcomes some shortcomings such as heat-shrinkable cable accessories must be installed and constructed with a heat source. Cold-shrinkable cable accessories are safe, fast and durable to use. The main insulation materials used in cold shrinkable cable accessories are silicone rubber and ethylene propylene rubber. Silicone rubber is widely used in cable accessories, electrical insulation and other fields because of its obvious advantages such as easy coloring, good aging resistance, and high and low voltage resistance. In the production process of cold-shrinkable cable accessories, after vulcanization and molding, plastic spiral suppor...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08K13/02C08K5/5419C08K3/22C08K5/098C08K3/36H01B3/28B29B7/00
CPCC08L83/04B29B7/002C08L2201/08C08L2203/20C08L2205/02H01B3/28C08L83/06C08K13/02C08K5/5419C08K2003/2241C08K5/098C08K3/36
Inventor 罗华兴
Owner GUILIN YUTIAN NEW MATERIAL
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