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A kind of high anti-cracking high performance PVC cable sheathing material and preparation method thereof

A cable sheathing material, high-performance technology, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of low temperature resistance without quantitative indicators, unable to judge the applicable temperature, etc., to achieve good cross-linking effect, The effect of long overall service life and improved stress fracture resistance

Active Publication Date: 2021-03-26
WUXI HUAMEI CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this invention has low temperature resistance performance, its specific low temperature resistance performance has no quantitative index, and it is impossible to determine its applicable temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of high anti-cracking high-performance PVC cable sheathing material of the present invention, by weight, it comprises:

[0040] (1) 180 parts of PVC resin;

[0041] (2) 38 parts of anti-cracking compound;

[0042] (3) 55 parts of plasticizer;

[0043] (4) Antioxidant 17 parts;

[0044] (5) 12 parts of heat stabilizer;

[0045] (6) 6 parts of filler;

[0046] (7) 4 parts of flame retardant;

[0047] (8) 3 parts whiskers;

[0048] (9) 1.5 parts of anti-ultraviolet powder;

[0049] Wherein said anti-cracking composite agent, by weight, it includes,

[0050] (1) 54 parts of poly-1-butene;

[0051] (2) 29 parts of low-density polyethylene;

[0052] (3) 20 parts of modifier;

[0053] (4) 12 parts of polypropylene fiber;

[0054] (5) 6 parts of ethylene-methyl acrylate copolymer;

[0055] The preparation method of described anti-cracking composite agent, it comprises the following steps,

[0056] (1) Add poly-1-butene, low-density polyethylene, and modifier...

Embodiment 2

[0070] A kind of high anti-cracking high-performance PVC cable sheathing material of the present invention, by weight, it comprises:

[0071] (1) 170 parts of PVC resin;

[0072] (2) 47 parts of anti-cracking compound;

[0073] (3) 62 parts of plasticizer;

[0074] (4) 18 parts of antioxidant;

[0075] (5) 13 parts of heat stabilizer;

[0076] (6) 9 parts of filler;

[0077] (7) 6 parts of flame retardant;

[0078] (8) 4 whiskers;

[0079] (9) 2.5 parts of anti-ultraviolet powder;

[0080] Wherein said anti-cracking composite agent, by weight, it includes,

[0081] (1) 57 parts of poly-1-butene;

[0082] (2) 37 parts of low-density polyethylene;

[0083] (3) 21 parts of modifier;

[0084] (4) 13 parts of polypropylene fiber;

[0085] (5) 7 parts of ethylene-methyl acrylate copolymer;

[0086] The preparation method of described anti-cracking composite agent, it comprises the following steps,

[0087] (1) Add poly-1-butene, low-density polyethylene, and modifier in...

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PUM

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Abstract

The invention relates to a PVC cable sheath material with high performance and high cracking resistance, which comprises the following raw materials in parts by weight: 120-200 parts of PVC resin, 35-55 parts of an anti-cracking composite agent, 40-66 parts of a plasticizer, 15-20 parts of an antioxidant, 10-14 parts of a heat stabilizer, 5-12 parts of filler, 3-8 parts of a flame retardant, 2-5 parts of whiskers, and 1-3 parts of ultraviolet-proof powder. A preparation method comprises the steps of mixing and pelletizing the PVC resin, anti-cracking composite agent and whiskers in a twin-screw extruder, adding the mixture into an internal mixer, then adding the plasticizer, antioxidant, heat stabilizer, filler and fire retardant, mixing, discharging, cooling, adding the mixture into the internal mixer again, adding the ultraviolet-proof powder, mixing, cooling, and feeding into an open mill for mixing, thereby obtaining the PVC cable sheath material. The sheath material has good electrical insulation performance, mechanical and physical performance, excellent resistance to environmental stress cracking, impact and tear, and long service life.

Description

technical field [0001] The invention relates to a cable sheath and a preparation method thereof, in particular to a highly crack-resistant cable sheath and a preparation method thereof. Background technique [0002] With the rapid development of the economy, cables are widely used in the fields of communication and electric power. When the cables are used in high-temperature or low-temperature environments, the cable material on the surface of the existing cables will crack, which will lead to cable power transmission or transmission in severe cases. The interruption of the signal will seriously affect people's normal life. [0003] The Chinese patent application whose publication number is CN108410045A discloses a high-temperature-resistant flame-retardant and non-toxic cable material. The cable material includes the following components: polyolefin thermoplastic elastomer, polyurethane elastomer rubber, EPDM rubber, ceramic powder, trioctyl trimellitate, zinc stearate, re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L23/20C08L23/06C08L23/08C08L23/12C08K13/04C08K5/372C08K3/22C08K3/38C08K7/10C08K3/26C08K3/04H01B3/44
CPCC08K2003/2227C08K2003/265C08K2003/387C08L27/06C08L2201/02C08L2203/202C08L2205/035C08L2205/16C08L2207/066H01B3/443C08L23/20C08L23/06C08L23/0869C08L23/12C08K13/04C08K5/372C08K3/2279C08K3/38C08K7/10C08K3/22C08K3/26C08K3/04
Inventor 华健华洪彬张林锐
Owner WUXI HUAMEI CABLE