Nitrile-butadiene rubber modified polyvinyl chloride sheath material for communication cables and preparation method thereof

A polyvinyl chloride sheath, nitrile rubber technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of insufficient tensile strength, air tightness, moisture resistance, aging resistance and wear resistance. , to achieve the effect of improving efficiency, simplifying tooling equipment and processes, and improving tensile strength and air tightness

Inactive Publication Date: 2015-09-09
合肥得润电子器件有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the composite material is only a simple composite, and its tensile strength, air tightness, moisture resistance, aging resistance, wear resistance and other properties are still not good enough to meet the requirements of modern industry for communication cables, and needs to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A nitrile rubber modified polyvinyl chloride sheath material for communication cables, made of the following raw materials in parts by weight (kg): polyvinyl chloride 67, nitrile rubber 23, soft microcrystalline wax 0.4, high molecular weight polyisobutylene 4.3, triallyl isocyanurate 2.8, dicumyl peroxide 0.5, polyisobutenyl succinimide 0.4, nano boron fiber 3.5.

[0016] The production method of the nitrile rubber modified polyvinyl chloride sheath material for the communication cable is characterized in that:

[0017] (1) Feed nitrile rubber, high molecular weight polyisobutylene, nano-boron fiber, 1 / 4 triallyl isocyanurate, and 1 / 4 dicumyl peroxide into the mixer, at 163°C Down mixing 3 min, obtains cross-linked modified nitrile rubber;

[0018] (2) Put polyvinyl chloride, 1 / 2 triallyl isocyanurate, and 1 / 2 dicumyl peroxide into the mixer, and knead at 163°C for 3 minutes to obtain crosslinking Modified polyvinyl chloride;

[0019] (3) Send the materials obtained...

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PUM

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Abstract

The invention relates to a nitrile-butadiene rubber modified polyvinyl chloride sheath material for communication cables, which is prepared from the following raw materials in parts by weight: 65-70 parts of polyvinyl chloride, 20-25 parts of nitrile-butadiene rubber, 0.3-0.5 part of soft microcrystalline wax, 4-4.5 parts of high-molecular-weight polyisobutylene, 2.5-3 parts of triallyl isocyanurate, 0.3-0.6 part of dicumyl peroxide, 0.3-0.5 part of polyisovinyl succimide and 3-4 parts of nano boron fiber. The polyvinyl chloride and nitrile-butadiene rubber are subjected to secondary crosslinking compounding without vulcanization, thereby greatly simplifying the tool set equipment and technique, enhancing the efficiency and lowering the cost; and thus, the sheath material has high strength and favorable oil resistance, has better softness and elasticity than the single use of polyvinyl chloride, and is convenient to install and use. The high-molecular-weight polyisobutylene and nano boron fiber are utilized to enhance the tensile strength, air tightness and moisture resistance of the sheath material.

Description

technical field [0001] The invention relates to the field of cable sheathing materials, in particular to a nitrile rubber modified polyvinyl chloride sheathing material for communication cables and a preparation method thereof. Background technique [0002] Because of its softness, elasticity and friction resistance, rubber cables are widely used in medium and low voltage power lines that need frequent movement, such as marine cables, subway cables, mine cables, welding cables, and studio cables. etc. Plastic cables are widely used in medium and high voltage fixed-laying power lines due to their superior electrical properties and high mechanical strength, and each plays an extremely important role in various sectors of the national economy. Among plastic cables, although XLPE power cables have been greatly developed in recent years, PVC insulated and PVC sheathed power cables still play an important role, especially in low-voltage lines, PVC Wires and cables still occupy a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L9/02C08L23/20C08K7/06C08K5/3492C08K5/14C08J3/24H01B3/44H01B7/17
CPCC08L27/06C08L2203/202C08L2205/035H01B3/443H01B7/17C08L9/02C08L23/22C08L91/06C08K7/06C08K5/34924C08K5/14
Inventor 杜宜敏吴庆国练高兵汪万敏陶周红张雨魏冬冬王文俊石金霞张燕琚一雄
Owner 合肥得润电子器件有限公司
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