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Fire-resistant high temperature-resistant cable material and preparation method thereof

A high-temperature, cable-resistant technology, used in plastic/resin/wax insulators, organic insulators, etc., can solve the problems of increased cable hardness, low elongation, outer layer fracture, etc., to improve processing performance, excellent stability, Good weather resistance

Inactive Publication Date: 2014-11-19
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still defects in the cable materials currently on the market, some are too viscous, and some have low elongation, so we urgently need to improve this material, and in the prior art, in order to increase the characteristics of fire resistance and high temperature resistance of cables, a large amount of inorganic Flame-retardant materials, resulting in an increase in the overall hardness of the cable, and even prone to outer layer breakage

Method used

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  • Fire-resistant high temperature-resistant cable material and preparation method thereof
  • Fire-resistant high temperature-resistant cable material and preparation method thereof
  • Fire-resistant high temperature-resistant cable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A fire-resistant and high-temperature-resistant cable material, which is prepared from the following raw materials in parts by weight:

[0023] 80 parts of polyvinyl chloride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of methyl vinyl silicone rubber, 8 parts of GNA type neoprene rubber, 3 parts of epoxy fatty acid octyl ester, 2 parts of barium stearate, aluminum hydroxide 1 part, 1 part of compatibilizer, 0.5 part of flame retardant, 0.3 part of antioxidant, 0.1 part of bispentamethylenethiuram tetrasulfide and 0.1 part of trimethylolpropane trimethacrylate.

[0024] The preparation method of above-mentioned cable material comprises the steps:

[0025] 1) Preparation of base resin: Take polyvinyl chloride, ethylene-vinyl acetate copolymer, methyl vinyl silicone rubber, and GNA type neoprene and mix them evenly to obtain the main material in parts by weight, and place the main material in a single-screw extruder to share Mix and granulate to obtain the bas...

Embodiment 2

[0033] A fire-resistant and high-temperature-resistant cable material, which is prepared from the following raw materials in parts by weight:

[0034] 120 parts of polyvinyl chloride, 15 parts of ethylene-vinyl acetate copolymer, 15 parts of methyl vinyl silicone rubber, 12 parts of GNA type neoprene rubber, 5 parts of epoxy fatty acid octyl ester, 3 parts of barium stearate, aluminum hydroxide 2 parts, 2 parts of compatibilizer, 0.8 part of flame retardant, 0.5 part of antioxidant, 0.2 part of bispentamethylene thiuram tetrasulfide and 0.2 part of trimethylolpropane trimethacrylate.

[0035] The preparation method of above-mentioned cable material comprises the steps:

[0036] 1) Preparation of base resin: Take polyvinyl chloride, ethylene-vinyl acetate copolymer, methyl vinyl silicone rubber, and GNA type neoprene and mix them evenly to obtain the main material in parts by weight, and place the main material in a single-screw extruder to share Mix and granulate to obtain th...

Embodiment 3

[0044] The refractory and high temperature resistant material prepared in embodiment 1-2 is subjected to a performance test, and the test results are as follows:

[0045] Table 1

[0046]

[0047] Performance test of the cable materials prepared in Examples 1 and 2 under extreme high temperature conditions: the selected temperature is 120°C, and the cable materials are placed at this temperature for 30 days for measurement. The test results are shown in Table 2:

[0048] Table 2

[0049]

[0050]

[0051] Conclusion: The performance of the cable material prepared by the present invention is better in all aspects, and the performance parameters of various aspects do not change much under high temperature conditions, and are suitable for long-term use under extreme high temperature conditions.

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Abstract

The invention belongs to the field of high molecular plastics of power cables and discloses a fire-resistant high temperature-resistant cable material. The cable material is made from the following raw materials in parts by weight: 80 parts of polyvinyl chloride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of methyl vinyl silicone rubber, 8 parts of GNA type chloroprene rubber, 3 parts of epoxy fatty acid octyl ester, 2 parts of barium stearate, 1 part of aluminium hydroxide, 1 part of compatilizer, 0.5 part of fire retardant, 0.3 part of antioxidant, 0.1 part of dipentamethylenethiuram tetrasulfide and 0.1 part of trimethylolpropane trimethacrylate. The cable material is good in mechanical property, good in fire resistance and high temperature resistance, simple in preparation process and low in raw material cost.

Description

technical field [0001] The invention belongs to the field of polymer plastics for power cables, and in particular relates to a fire-resistant and high-temperature-resistant cable material and a preparation method thereof. Background technique [0002] The cable is the system that connects the power system from the step-down distribution substation to the user end. Most of the cables in the transmission line are placed between two utility poles, and most of them are exposed to the outdoors. Therefore, the performance requirements of the cables are extremely high, and they should have good mechanical properties and insulation and fire resistance. [0003] In recent years, with the increasing development and popularization of the use of production and living wires and cables, the demand for power cables has increased rapidly, and with the development of the economy, the requirements for its materials have become higher and higher. It requires soft, wear-resistant, durable low ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L31/04C08L83/07C08L11/00C08L51/06C08K13/02C08K5/1515C08K5/098C08K3/22C08K3/32C08K5/138C08K5/40C08K5/103H01B3/44
Inventor 魏若琳解世政刘松刘庆义刘芬松刘晓山边文浩王兴宇李笃文
Owner STATE GRID CORP OF CHINA
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