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Flame-proof soft vinyl plastics for electric wire and cable

A soft polyvinyl chloride, wire and cable technology, used in insulated cables, cables, circuits, etc., can solve the problems of high flame retardant and general flame retardant performance, and achieve good low temperature embrittlement resistance and excellent flame retardant performance. , the effect of good processing performance

Active Publication Date: 2008-08-20
CHANGSHU ZHONGLIAN PHOTOELECTRICITY NEW STUFF +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Since the oxygen index of the flexible polyvinyl chloride plastic for wires and cables in the above patent is 30, they all have average flame retardancy and cannot meet the requirements of high flame retardancy.

Method used

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  • Flame-proof soft vinyl plastics for electric wire and cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Ingredient parts by weight (quantity parts)

[0047] PVC resin (SG3 type) 100;

[0048] Trioctyl trimellitate (TOTM) 25;

[0049] Copolymer resin (Elvaloy 741) 40;

[0050] Lead cyanurate 8;

[0051] Antimony trioxide 20;

[0052] Zinc borate 25;

[0053] Aluminum hydroxide 30;

[0054] Calcium carbonate 35;

[0055] Barium Stearate 1.5.

Embodiment 2

[0057] Ingredient parts by weight (quantity parts)

[0058] PVC resin (polymerization degree is 1300) 100;

[0059] Trioctyl trimellitate (TOTM) 30;

[0060] Copolymer resin (Elvaloy HP551) 15;

[0061] Lead cyanurate 12;

[0062] Antimony trioxide 15;

[0063] Zinc borate 25;

[0064] Aluminum hydroxide 50;

[0065] Calcium carbonate 10;

[0066] Lead stearate 1.2.

Embodiment 3

[0068] Ingredient parts by weight (quantity parts)

[0069] PVC resin (polymerization degree is 1300) 100;

[0070] Trioctyl trimellitate (TOTM) 32;

[0071] Diisodecyl phthalate (DIDP) 10;

[0072] Copolymer resin (Elvaloy HP551) 20;

[0073] Lead cyanurate 4;

[0074] Antimony trioxide 10;

[0075] Zinc borate 15;

[0076] Aluminum hydroxide 120;

[0077] Lead stearate 1.5;

[0078] Barium stearate 1;

[0079] Stearic acid amide 0.5.

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Abstract

The invention relates to a piece of inflaming retarding soft polyvinyl chloride plastic used in electric wires and cables, which belongs to sheath and insulation materials used in electric wires and cables in industrial polymer materials and is composed of the raw materials with the following proportion by weight: 25 to 70 parts by weight of polyvinyl chloride resin 100 plasticizer; 5 to 40 parts by weight of co-polymerization resin, 3 to 12 parts by weight of stabilizing agent; 5 to 20 parts by weight of flame retardant I; 5 to 25 parts by weight of flame retardant II; 30 to 130 parts by weight of flame retardant III; 0 to 40 parts by weight of loading agent and 0.5 to 5 parts by weight of lubricant. The inflaming retarding soft polyvinyl chloride plastic used in electric wires and cables provided by the invention has very good inflaming retarding performance with the oxygen index as high as more than 46 and can meet the requirements of using the electric wires and cables with special inflaming retarding requirements as the sheath and insulation materials; the inflaming retarding soft polyvinyl chloride plastic not only has very good inflaming retarding performance but also has favorable low temperature resistant and embrittlement resistant performances and very good soft performance and processing performance.

Description

technical field [0001] The invention belongs to a sheath and an insulating material for electric wires and cables among industrial polymer materials, and more specifically relates to a flame-retardant soft polyvinyl chloride plastic for electric wires and cables. Background technique [0002] Soft polyvinyl chloride plastic has good physical, mechanical and electrical properties, and is suitable for insulation and sheathing materials for low-voltage wires and cables. In special occasions, there will be higher flame retardant requirements for wires and cables, such as UL1666 (flame spread height of cables in shafts), UL910 (measurement of cable flame spread and smoke density), and class A in TEL60332-3-22 (Vertical flame propagation test of bundled wires and cables placed vertically), etc. The oxygen index is used to evaluate the flame retardancy of materials, the higher the oxygen index, the better the flame retardancy. For example, when export digital cables need to pass ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/02C08K3/22C08K3/38H01B7/295
Inventor 周建新张尔梅王俊刚包金芳计文龙朱俊张健
Owner CHANGSHU ZHONGLIAN PHOTOELECTRICITY NEW STUFF
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