Heat-resistant, low-smoke and flame-retardant non-cross-linked cable material

A low-smoke, flame-retardant, non-crosslinking technology, which is applied in the field of polyolefin compositions, can solve problems such as insufficient heat resistance, and achieve the effects of improving flexibility, inhibiting crosslinking, and enhancing heat resistance

Inactive Publication Date: 2018-12-18
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a need to use environmentally friendly non-crosslinked thermoplastic linear low-density polyethylene; however, its heat resistance is significantly insufficient compared with crosslinked linear low-density polyethylene resins, so non-crosslinked thermoplastic linear low-density polyethylene resins are used in There are limitations as a cable insulator

Method used

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  • Heat-resistant, low-smoke and flame-retardant non-cross-linked cable material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The heat-resistant, low-smoke and flame-retardant non-crosslinked cable material of this embodiment includes the following components by weight:

[0022] 30 parts of ethylene-vinyl acetate copolymer, 4 parts of styrene, 4 parts of 3-(2-furyl)acrylic acid, 4 parts of ethyl cinnamate, 10 parts of talcum powder, 1 part of magnesium-aluminum composite flame retardant, V- 1 part of Si4042 silicone, 10 parts of linear low density polyethylene, 10 parts of maleic anhydride, 5 parts of octene, 1 part of N, N-dimethylformamide, 1 part of dimethyl sulfoxide, 1 part of triphenyl phosphate 1 part of dimethyl acetal, 2 parts of cinnamoyl chloride, 1 part of diethylamine, 1 part of triethylamine, 2 parts of ultrafine zinc borate, 2,3-dimethyl-2,3-diphenyl 0.5 parts of butane, 0.5 parts of dibenzoyl peroxide; first, cinnamoyl chloride, diethylamine and triethylamine are added to petroleum ether dehydrated by 0.4nm molecular sieves, and the temperature is 35 ° C. pressure distillation...

Embodiment 2

[0024] The heat-resistant, low-smoke and flame-retardant non-crosslinked cable material of this embodiment includes the following components by weight:

[0025] 40 parts of ethylene-vinyl acetate copolymer, 8 parts of styrene, 8 parts of 3-(2-furyl)acrylic acid, 8 parts of ethyl cinnamate, 20 parts of talcum powder, 3 parts of magnesium-aluminum composite flame retardant, V- 3 parts of Si4042 silicone, 20 parts of linear low density polyethylene, 20 parts of maleic anhydride, 10 parts of octene, 4 parts of N, N-dimethylformamide, 4 parts of dimethyl sulfoxide, 4 parts of triphenyl phosphate 4 parts of dimethyl acetal, 4 parts of cinnamoyl chloride, 3 parts of diethylamine, 3 parts of triethylamine, 6 parts of ultrafine zinc borate, 2,3-dimethyl-2,3-diphenyl 2 parts of butane, 2 parts of dibenzoyl peroxide; first, cinnamoyl chloride, diethylamine and triethylamine are added to petroleum ether dehydrated by 0.4nm molecular sieve, and the reaction is stirred at 50°C for 24 hours ...

Embodiment 3

[0027] The heat-resistant, low-smoke and flame-retardant non-crosslinked cable material of this embodiment includes the following components by weight:

[0028] 30 parts of ethylene-vinyl acetate copolymer, 4 parts of styrene, 8 parts of 3-(2-furyl)acrylic acid, 4 parts of ethyl cinnamate, 20 parts of talcum powder, 1 part of magnesium-aluminum composite flame retardant, V- 3 parts of Si4042 silicone, 20 parts of linear low density polyethylene, 10 parts of maleic anhydride, 10 parts of octene, 1 part of N, N-dimethylformamide, 4 parts of dimethyl sulfoxide, 1 part of triphenyl phosphate 4 parts of dimethyl acetal, 2 parts of cinnamoyl chloride, 3 parts of diethylamine, 1 part of triethylamine, 6 parts of superfine zinc borate, 2,3-dimethyl-2,3-diphenyl 0.5 parts of butane, 2 parts of dibenzoyl peroxide; first, cinnamoyl chloride, diethylamine and triethylamine are added to petroleum ether dehydrated by 0.4nm molecular sieve, and the reaction is stirred at 35°C for 24 hours an...

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Abstract

The invention discloses a heat-resistant, low-smoke and flame-retardant non-cross-linked cable material comprising the raw materials: an ethylene-vinyl acetate copolymer, styrene, 3-(2-furyl)acrylic acid, ethyl cinnamate, talcum powder, linear low density polyethylene, maleic anhydride, octene, N,N-dimethylformamide, dimethyl sulfoxide, triphenyl phosphate, dimethyl acetal, cinnamyl chloride, diethylamine, triethylamine, 2,3-dimethyl-2,3-diphenylbutane, dibenzoyl peroxide, a magnesium-aluminum composite flame retardant and V-Si4042 silicone. Due to reasonable raw materials and proportions, thecable material has excellent thermal deformation resistance and thermal aging resistance, and can meet the performance requirements of wire and cable insulation and sheath materials at the service temperature of 90 DEG C-105 DEG C; through the way of forming and capturing free radicals in the reaction system and stabilizing the free radicals, the cross-linking in the reaction system can be inhibited, the softness, flame retardancy, production efficiency, extrusion processability, fluidity, tensile strength and tensile elongation of the material are improved while the heat resistance of the material is enhanced, the compatibility between blends is good, the process consumption can be reduced and the manufacturing cost is reduced.

Description

technical field [0001] The invention relates to a polyolefin composition, in particular to a heat-resistant, low-smoke, and flame-retardant non-crosslinked cable material. Background technique [0002] Cross-linked linear low-density 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. And recently, crosslinked linear low density polyethylene using organic peroxides has been most widely used in the cable industry. However, since the cross-linked linear low density polyethylene resin is a thermosetting resin, it is not recyclable due to difficulty in handling, causing environmental pollution. And the cross-linking process is necessary for the process of producing cross-linked linear low-density polyethylene cables using organic peroxides, wherein in the cross-linking process, high pressure and high temper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L83/04C08K13/02C08K3/34C08K5/523C08K3/38H01B3/44
CPCC08K2003/387C08L23/0853C08L2201/02C08L2201/08C08L2203/202C08L2205/035H01B3/441C08L23/0815C08L83/04C08K13/02C08K3/34C08K5/523C08K3/38
Inventor 李艳琼
Owner CHONGQING UNIV OF ARTS & SCI
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