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Heat-resistant, halogen-free, low-smoke, flame-retardant non-crosslinked polyolefin composition for cables

A low-smoke flame retardant and composition technology, which is applied in the direction of circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of reducing the mechanical properties and processing properties of materials, and achieve reduced process consumption, no environmental pollution, and reduced The effect of manufacturing costs

Active Publication Date: 2021-07-20
海南六八鸿昌兴科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, although the addition of a large amount of flame-retardant fillers improves the flame-retardant properties of the material, it seriously reduces the mechanical properties and processing properties of the material.

Method used

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  • Heat-resistant, halogen-free, low-smoke, flame-retardant non-crosslinked polyolefin composition for cables
  • Heat-resistant, halogen-free, low-smoke, flame-retardant non-crosslinked polyolefin composition for cables

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Embodiment 1

[0016] In the heat-resistant, halogen-free, low-smoke, flame-retardant non-crosslinked polyolefin composition for cables in this embodiment, the raw materials of the composition include the following components in parts by weight:

[0017] 40 parts of ethylene-vinyl acetate copolymer, 20 parts of polyethylene, Mg(OH) 2 160 parts, 6 parts of phase solvent, 1 part of lubricant, 0.5 parts of stabilizer.

[0018] In the present embodiment, the lubricant is calcium stearate. In the present embodiment, the calcium stearate is replaced by one of barium stearate, stearic acid, polyethylene wax according to the same weight, or replaced Be the mixture of calcium stearate and barium stearate, stearic acid, polyethylene wax, all can realize the object of the present invention.

[0019] In this embodiment, the stabilizer is a calcium-zinc composite stabilizer; the polyethylene is linear low-density polyethylene LLDPE.

Embodiment 2

[0021] In the heat-resistant, halogen-free, low-smoke, flame-retardant non-crosslinked polyolefin composition for cables in this embodiment, the raw materials of the composition include the following components in parts by weight:

[0022] 60 parts of ethylene-vinyl acetate copolymer, 40 parts of polyethylene, AL(OH) 3 180 parts, 20 parts of phase solvent, 5 parts of lubricant, 1.5 parts of stabilizer.

[0023] In the present embodiment, the lubricant is barium stearate. In the present embodiment, the barium stearate is replaced by one of calcium stearate, stearic acid and polyethylene wax according to the same weight parts, or replaced Be the mixture of calcium stearate and barium stearate, stearic acid, polyethylene wax, all can realize the object of the present invention.

[0024] In this embodiment, the stabilizer is a calcium-zinc composite stabilizer; the polyethylene is linear low-density polyethylene LLDPE.

Embodiment 3

[0026] In the heat-resistant, halogen-free, low-smoke, flame-retardant non-crosslinked polyolefin composition for cables in this embodiment, the raw materials of the composition include the following components in parts by weight:

[0027] 40 parts of ethylene-vinyl acetate copolymer, 40 parts of polyethylene, Mg(OH) 2 160 parts, 20 parts of phase solvent, 1 part of lubricant, 1.5 parts of stabilizer.

[0028] In the present embodiment, the lubricant is polyethylene wax. In the present embodiment, the polyethylene wax is replaced with one of barium stearate, stearic acid, calcium stearate, or replaced with The mixture of calcium stearate and barium stearate, stearic acid, polyethylene wax all can realize the object of the present invention.

[0029] In this embodiment, the stabilizer is a calcium-zinc composite stabilizer; the polyethylene is linear low-density polyethylene LLDPE.

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Abstract

The invention discloses a heat-resistant, halogen-free, low-smoke, and flame-retardant non-crosslinked polyolefin composition for cables, which is characterized in that: the raw materials of the composition include the following components in parts by weight: ethylene-vinyl acetate copolymer 40-60 parts of compound, 20-40 parts of linear low density polyethylene (LLDPE), 160-180 parts of inorganic hydroxide, 6-20 parts of phase solvent, 1-5 parts of synergist, 0.5-1.5 parts of stabilizer; It can improve the heat resistance of the material, and its working temperature can be as high as above 90°C. At the same time, it can reduce process consumption and manufacturing cost, and has excellent mechanical properties and processing properties. It can be recycled and has no pollution to the environment.

Description

technical field [0001] The invention relates to cable materials, in particular to a heat-resistant, halogen-free, low-smoke, flame-retardant non-crosslinked polyolefin composition for cables. Background technique [0002] Cross-linked polyethylene, which is currently mainly used as an insulating material for cables, is a thermosetting resin that has not only excellent heat resistance, chemical resistance, etc. but also excellent electrical characteristics. The scheme of cross-linked polyethylene includes cross-linking (Patent No. 6284178) and radiation cross-linking (Patent No. 4426497) by chemical reaction using organic peroxide or silane as a medium, and the cross-linking of polyethylene by using organic peroxide Ethylene has been most widely used in the cable industry. The cross-linking process is necessary for the process of producing cross-linked polyethylene cables using organic peroxides. In the cross-linking process, high pressure and high temperature are required, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/06C08K13/02C08K3/22C08K5/098C08K5/09C08K5/372C08K5/134H01B3/44
CPCC08K2003/2224C08K2003/2227C08L23/0853C08L2201/02C08L2201/08C08L2201/22C08L2203/202H01B3/441C08L23/0815C08L23/06C08K13/02C08K3/22C08K5/098C08K5/09C08K5/372C08K5/1345
Inventor 王翔符式涛祝秋萍
Owner 海南六八鸿昌兴科技股份有限公司
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