Flame-retardant thermosetting nitrile/polyvinyl chloride (PVC) rubber for wires and cables

A nitrile polyvinyl chloride, wire and cable technology, applied in the direction of insulating cables, cables, circuits, etc., can solve problems such as melting and loss of insulation performance, and achieve good flame retardant performance

Active Publication Date: 2011-05-11
GUANGDONG RIFENG ELECTRIC CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of industry, these rubber formulations can no longer meet the requirements of some special occasions, such as high flame retardancy, high strength, high oil resistance, high tear resistance, high flexibility and other properties
In order to ...

Method used

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  • Flame-retardant thermosetting nitrile/polyvinyl chloride (PVC) rubber for wires and cables

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take 70 parts of powdered nitrile rubber, 30 parts of PVC resin powder, 3 parts of vulcanizing agent DCP, 2.5 parts of accelerator TRA, 1 part of accelerator DM, 6 parts of zinc oxide, 3 parts of stearic acid, 2 parts of coumarone resin, anti-aging 1 part of anti-aging agent RD, 10 parts of chlorinated paraffin, 8 parts of antimony trioxide, 6 parts of zinc borate, 70 parts of aluminum hydroxide, 30 parts of N330 carbon black, and 20 parts of N550 carbon black. The flame-retardant thermosetting nitrile polyvinyl chloride rubber for electric wires and cables of the present invention is obtained.

Embodiment 2

[0023] Take 60 parts of powdered nitrile rubber, 40 parts of PVC resin powder, 2.5 parts of vulcanizing agent DCP, 2 parts of accelerator TRA, 1.5 parts of accelerator DM, 5 parts of zinc oxide, 2.5 parts of stearic acid, and 1.5 parts of coumarone resin , 1.5 parts of anti-aging agent MB, 1.5 parts of anti-aging agent RD, 30 parts of chlorinated paraffin, 10 parts of antimony trioxide, 5 parts of zinc borate, 60 parts of aluminum hydroxide, 25 parts of N330 carbon black, 30 parts of N550 carbon black , The flame-retardant thermosetting nitrile polyvinyl chloride rubber for wire and cable of the present invention is obtained through the above-mentioned preparation method.

Embodiment 3

[0025] Take 50 parts of powdered nitrile rubber, 50 parts of PVC resin powder, 2 parts of vulcanizing agent DCP, 1.5 parts of accelerator TRA, 2 parts of accelerator DM, 4 parts of zinc oxide, 2 parts of stearic acid, 3 parts of coumarone resin, anti-aging 2 parts of agent MB, 1 part of antioxidant RD, 25 parts of chlorinated paraffin, 7 parts of antimony trioxide, 4 parts of zinc borate, 50 parts of aluminum hydroxide, 20 parts of N330 carbon black, 40 parts of N550 carbon black, through the above preparation method The flame-retardant thermosetting nitrile polyvinyl chloride rubber for electric wires and cables of the present invention is obtained.

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Abstract

The invention discloses a flame-retardant thermosetting nitrile/polyvinyl chloride (PVC) rubber for wires and cables, which is characterized by comprising the following raw materials in parts by weight: 50-70 parts of nitrile rubber powder, 30-50 parts of PVC resin powder, 2-3 parts of vulcanizing agent, 2.5-4.5 parts of accelerant, 4-6 parts of zinc oxide, 2-3 parts of stearic acid, 1-3 parts of coumarone resin, 2-4 parts of anti-aging agent, 20-40 parts of chlorinated paraffin wax, 7-10 parts of antimony trioxide, 4-6 parts of zinc borate, 50-70 parts of aluminum hydroxide and 40-70 parts of carbon black. After exceeding a certain temperature, the flame-retardant thermosetting nitrile/PVC rubber disclosed by the invention can only be cured and charred, but can remain a certain insulating property; the strength, elongation and flame retardance of the flame-retardant thermosetting nitrile/PVC rubber are better than those of common rubber and thermoplastic nitrile/PVC rubber; and the flame-retardant thermosetting nitrile/PVC rubber also has the advantages of oil resistance, wear resistance and softness in the common rubber and thermoplastic nitrile/PVC rubber.

Description

technical field [0001] The invention relates to the technical field of rubber formulations for wires and cables, in particular to a flame-retardant thermosetting nitrile polyvinyl chloride rubber for wires and cables. Background technique [0002] Wire and cable have industrial development and undeniable products in people's lives. There are different requirements in different application occasions. The rubber formulas currently used are mainly natural butadiene rubber formulas, EPDM rubber formulas, and chlorinated polyethylene / chlorosulfonated polyethylene formulas. With the development of industry, these rubber formulations can no longer meet the requirements of some special occasions, such as high flame retardancy, high strength, high oil resistance, high tear resistance, high flexibility and other properties. In order to meet the new requirements, some raw material manufacturers have developed thermoplastic nitrile polyvinyl chloride rubber materials, but this rubber i...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L27/06C08K13/02C08K3/22C08K5/09C08K3/38C08K3/04H01B7/295
Inventor 冷静李强冯就景
Owner GUANGDONG RIFENG ELECTRIC CABLE
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