Silicone rubber halogen-free wire/cable or sleeve, and preparation method thereof

A wire and cable, silicone rubber technology, applied in the direction of insulating cables, rubber insulators, cables, etc., can solve the problems of easy aging and reduced service life, and achieve the effects of fast vulcanization speed, increased yield and excellent performance

Active Publication Date: 2013-01-16
DONGGUAN SUNTRACK WIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the silicone rubber of the wire, cable or sleeve is directly exposed to the environment during use, which is easy to age and reduces its service life

Method used

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  • Silicone rubber halogen-free wire/cable or sleeve, and preparation method thereof
  • Silicone rubber halogen-free wire/cable or sleeve, and preparation method thereof
  • Silicone rubber halogen-free wire/cable or sleeve, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A kind of protective glue, comprising by weight fraction:

[0054]

[0055]

[0056] The components were mixed and kneaded, and vulcanized at 160° C. for 50 minutes to obtain the protective rubber.

[0057] A method for preparing silicone rubber halogen-free wire and cable or casing, comprising the steps of:

[0058] (1) Mixing: Mix a part of the silica gel raw material with the vulcanizing agent of Group A to obtain a mixed product; mix the remaining amount of silica gel raw material with the vulcanizing agent of Group B to obtain a mixed product, and mix the two parts of the mixed product After mixing, continue to knead to obtain the final kneading product; wherein, the mass ratio of the silica gel raw material to the A group vulcanizing agent is 500:1, the mass ratio of the silica gel raw material to the B group vulcanizing agent is 70:1, and the mixing temperature at 20°C;

[0059] (2) Extrude the mixed rubber obtained in step (1) at 20°C, the extrusion spee...

Embodiment 2

[0063] A kind of protective glue, comprising by weight fraction:

[0064]

[0065] The components were mixed and kneaded, and vulcanized at 240° C. for 15 minutes to obtain the protective rubber.

[0066] A method for preparing silicone rubber halogen-free wire and cable or casing, comprising the steps of:

[0067] (1) Mixing: Mix a part of the silica gel raw material with the vulcanizing agent of Group A to obtain a mixed product; mix the remaining amount of silica gel raw material with the vulcanizing agent of Group B to obtain a mixed product, and mix the two parts of the mixed product After mixing, continue to knead to obtain the final kneading product; wherein, the mass ratio of the silica gel raw material to the A group vulcanizing agent is 600:1, the mass ratio of the silica gel raw material to the B group vulcanizing agent is 60:1, and the mixing temperature 35°C;

[0068] (2) Extrude the mixed rubber obtained in step (1) at 35°C, the extrusion speed is 350 rpm, a...

Embodiment 3

[0072] A kind of protective glue, comprising by weight fraction:

[0073]

[0074] The components were mixed and kneaded, and vulcanized at 200° C. for 30 minutes to obtain the protective rubber.

[0075] A method for preparing silicone rubber halogen-free wire and cable or casing, comprising the steps of:

[0076] (1) Mixing: Mix a part of the silica gel raw material with the vulcanizing agent of Group A to obtain the mixed product; mix the remaining amount of the silica gel raw material with the vulcanizing agent of Group B to obtain the mixed product, and mix the two parts of the mixed product After mixing, continue kneading to obtain the final kneading product; wherein, the mass ratio of the silica gel raw material to the A group vulcanizing agent is 700:1, the mass ratio of the silica gel raw material to the B group vulcanizing agent is 50:1, and the mixing temperature 50°C;

[0077] (2) Extrude the mixed rubber obtained in step (1) at 50°C, the extrusion speed is 50...

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PUM

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Abstract

The invention relates to silicone rubber halogen-free wire/cable or sleeve, and a preparation method thereof. A braided layer is wound around outer surface of silicone rubber, and coated outside with protective rubber. The protective rubber is prepared from methyl silicone resin, a fiber binding agent, a platinum vulcanizing agent, a cross-linking agent and reaction inhibitor by blending, and vulcanizing at 160-240 DEG C for 15-50 min. The method overcomes the defect of easy aging in prior art, guarantees excellent performance, and prolongs service life.

Description

technical field [0001] The invention belongs to the technical field of silicone rubber products, and relates to a wire, cable or sleeve. Specifically, the invention relates to a silicon rubber halogen-free wire, cable or sleeve and a preparation method thereof. Background technique [0002] Silicone rubber has excellent high and low temperature resistance, weather resistance, electrical insulation and physiological inertia, etc., and is widely used in aerospace, electronic and electrical, construction, automotive machinery and other industries, as well as medical and health, and various fields of daily life. The main application forms of silicone rubber are various vulcanized products, including various rubber sheets, gaskets, valves, films, shock absorbers, electrical plugs, rubber rollers, potentiometer insulating sleeves, waveguides and buttons in molded products; All kinds of rubber hoses, rubber strips, rubber ropes, wire and cable sheaths in the products, and gaskets, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08K5/5425C08K5/05C08J3/24H01B3/28H01B7/17H01B17/58H01B19/00B29C47/92B29B7/00B29C48/92
CPCB29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895B29C2948/92933
Inventor 李厚昌陈志敏赵文川张国忠刘千灵
Owner DONGGUAN SUNTRACK WIRE
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