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Cable sheath material

A technology of cable sheath material and chlorinated polyethylene, which is applied in the direction of insulating cables, cables, circuits, etc., can solve the problems that are not conducive to ensuring the flexibility of cable sheath materials, affecting wide application, and high hardness of materials, so as to achieve capacity increase Excellent effect, improved compatibility, excellent mechanical properties

Active Publication Date: 2012-02-08
SICHUAN MINGXING CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The authorized notification number is CN101463168A Chinese invention patent, which discloses a method of improving the tear strength of CPE by using thiadiazole vulcanization system, but because 50-60 parts of clay is used in the formula, the material hardness is relatively high, which is not conducive to ensuring the cable protection. Due to the softness of the sheath material and the use of carbon black in the formula, only black sheath can be prepared, which affects the wide application of this material in wire and cable

Method used

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Effect test

Embodiment 1

[0056] A cable sheathing material, which is added according to the components of the traditional cable sheathing material: magnesium oxide; stearic acid; plasticizer; nanometer highly active white carbon black; activated calcium carbonate; quantity:

[0057] 60 parts of chlorinated polyethylene;

[0058] 40 parts of nylon;

[0059] Compatibilizer CPE-g-MAH 6 parts;

[0060] 25 parts of high-performance composite flame retardant;

[0061] Composite stabilizer 4 parts;

[0062] Anti-aging agent 1 part;

[0063] 1 part of thiadiazole vulcanizing agent;

[0064] Aldehyde condensation accelerator 1.5 parts.

[0065] The compatibilizer CPE-g-MAH is mixed uniformly by 100 parts of chlorinated polyethylene, 4 parts of maleic anhydride, and 0.3 part of dicumyl peroxide on a double-roll mill, and the chlorinated polyethylene blend Put it into a torque rheometer with a temperature of 150° C. and a rotational speed of 30 r / min to carry out a melt-grafting reaction to obtain CPE-...

Embodiment 2

[0075] A cable sheathing material, which is added according to the components of the traditional cable sheathing material: magnesium oxide; stearic acid; plasticizer; nanometer highly active white carbon black; activated calcium carbonate; quantity:

[0076] 90 parts of chlorinated polyethylene;

[0077] 10 parts of nylon;

[0078] Compatibilizer CPE-g-MAH 10 parts;

[0079] 30 parts of high-performance composite flame retardant;

[0080] Composite stabilizer 7 parts;

[0081] Anti-aging agent 2.5 parts;

[0082] Thiadiazole vulcanizing agent 4 parts;

[0083] Aldehyde condensation accelerator 3 parts.

[0084] The compatibilizer CPE-g-MAH is mixed uniformly by 100 parts of chlorinated polyethylene, 10 parts of maleic anhydride, and 0.7 part of dicumyl peroxide on a double-roll mill, and the chlorinated polyethylene blend Put it into a torque rheometer with a temperature of 150° C. and a rotational speed of 30 r / min to carry out a melt-grafting reaction to obtain CPE-g-...

Embodiment 3

[0092] A cable sheathing material, which is added according to the components of the traditional cable sheathing material: magnesium oxide; stearic acid; plasticizer; nanometer highly active white carbon black; activated calcium carbonate; quantity:

[0093] 75 parts of chlorinated polyethylene;

[0094] 25 parts of nylon;

[0095] Compatibilizer CPE-g-MAH 8 parts;

[0096] 28 parts of high-performance composite flame retardant;

[0097] Composite stabilizer 5 parts;

[0098] Anti-aging agent 2 parts;

[0099] Thiadiazole vulcanizing agent 3 parts;

[0100] Aldehyde condensation accelerator 2 parts.

[0101] The compatibilizer CPE-g-MAH is mixed uniformly by 100 parts of chlorinated polyethylene, 7 parts of maleic anhydride, and 0.5 part of dicumyl peroxide on a double-roll mill, and the chlorinated polyethylene blend Put it into a torque rheometer with a temperature of 150° C. and a rotational speed of 30 r / min to carry out a melt-grafting reaction to obtain CPE-g-MAH....

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Abstract

The invention discloses a cable sheath material and a preparation method thereof, belonging to a cable sheath material. The invention is mainly applicable to coal mine cables. The cable sheath material comprises chlorinated polyethylene, nylon, compatibilizer CPE-g-MAH (chlorinated polyethylene-graft-maleic anhydride), high-performance composite flame retardant, composite stabilizer, anti-aging agent, thiadiazole vulcanizing agent and aldehyde-amine condensate accelerator. The preparation method comprises the following steps: plasticating, blending on a hot roll compounding mill, sulfurizing and the like. The invention has the advantages of high tearing strength, low hardness, high softness, wide application range, simple formula and simplified technique.

Description

technical field [0001] The invention relates to the field of cables, in particular, it belongs to a kind of cable sheathing material, and is especially applied to coal mine cables. Background technique [0002] Chlorinated polyethylene is a high-molecular random chloride obtained by replacing the hydrogen atoms on the secondary carbon atoms in the molecular structure of high-density polyethylene (HDPE) with chlorine atoms. CPE with a chlorine mass fraction of about 35% has high strength, good elasticity, flame retardancy, oil resistance, solvent resistance, ozone resistance, heat aging resistance, weather resistance, and good processing performance because of its molecular structure does not contain double bonds. Filling, large output, low price and other advantages. With the development of the wire and cable industry, people put forward higher and stricter performance requirements for cable products. Rubber-type chlorinated polyethylene (CPE), as a new type of sheath mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08L77/00C08L51/06C08K13/02C08K5/46H01B3/44H01B7/295
Inventor 高西萍李广元沈卢东盛业武陈光高沈智飞张圣博
Owner SICHUAN MINGXING CABLE
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