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Heat-resistant low-smoke flame-retardant PVC cable

A low-smoke, flame-retardant, PVC resin technology, applied in the direction of insulating cables, cables, circuits, etc., can solve problems such as insufficient heat resistance, achieve reasonable proportioning, reduce manufacturing costs, and avoid thermal stress cracking problems

Inactive Publication Date: 2018-12-25
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 flame-retardant PVC cable
  • Heat-resistant low-smoke flame-retardant PVC cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The heat-resistant, low-smoke, and flame-retardant PVC cable of this embodiment is composed of an aluminum alloy cable core 1, a filling layer 2, an ethylene-propylene rubber insulating layer 3, a heat-resistant and low-smoke-resistant PVC sheath 4, and a nickel cable core 5 Composition, the filling layer 2 is extruded with three aluminum alloy cable cores 1 and three nickel cable cores 5, the filling layer 2 is extruded and wrapped with a layer of ethylene-propylene rubber insulating layer 3, and the ethylene-propylene rubber insulating layer 3 is outside. A heat-resistant and low-smoke-resistance PVC jacket 4 is extruded; the raw materials of the heat-resistant and low-smoke-resistance PVC jacket 4 include the following components by weight:

[0017] 30 parts of PVC resin, 4 parts of styrene, 4 parts of 3-(2-furyl) acrylic acid, 4 parts of ethyl cinnamate, 5 parts of trioctyl trimellitate, 0.5 parts of epoxidized soybean oil, 1 part of calcium carbonate , 1 part of ca...

Embodiment 2

[0021] The heat-resistant, low-smoke, and flame-retardant PVC cable of this embodiment is composed of an aluminum alloy cable core 1, a filling layer 2, an ethylene-propylene rubber insulating layer 3, a heat-resistant and low-smoke-resistant PVC sheath 4, and a nickel cable core 5 Composition, the filling layer 2 is extruded with three aluminum alloy cable cores 1 and three nickel cable cores 5, the filling layer 2 is extruded and wrapped with a layer of ethylene-propylene rubber insulating layer 3, and the ethylene-propylene rubber insulating layer 3 is outside. A heat-resistant and low-smoke-resistance PVC jacket 4 is extruded; the raw materials of the heat-resistant and low-smoke-resistance PVC jacket 4 include the following components by weight:

[0022] 40 parts of PVC resin, 8 parts of styrene, 8 parts of 3-(2-furyl) acrylic acid, 8 parts of ethyl cinnamate, 10 parts of trioctyl trimellitate, 3 parts of epoxidized soybean oil, 4 parts of calcium carbonate , 4 parts of c...

Embodiment 3

[0026] The heat-resistant, low-smoke, and flame-retardant PVC cable of this embodiment is composed of an aluminum alloy cable core 1, a filling layer 2, an ethylene-propylene rubber insulating layer 3, a heat-resistant and low-smoke-resistant PVC sheath 4, and a nickel cable core 5 Composition, the filling layer 2 is extruded with three aluminum alloy cable cores 1 and three nickel cable cores 5, the filling layer 2 is extruded and wrapped with a layer of ethylene-propylene rubber insulating layer 3, and the ethylene-propylene rubber insulating layer 3 is outside. A heat-resistant and low-smoke-resistance PVC jacket 4 is extruded; the raw materials of the heat-resistant and low-smoke-resistance PVC jacket 4 include the following components by weight:

[0027] 30 parts of PVC resin, 8 parts of styrene, 4 parts of 3-(2-furyl) acrylic acid, 8 parts of ethyl cinnamate, 5 parts of trioctyl trimellitate, 3 parts of epoxidized soybean oil, 1 part of calcium carbonate , 4 parts of cal...

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PUM

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Abstract

The invention discloses a heat-resistant low-smoke flame-retardant PVC cable. The cable consists of aluminum alloy cable cores, a filling layer, an ethylene-propylene rubber insulating layer, a heat-resistant low-smoke-resistant PVC protective jacket and nickel cable cores, wherein the three aluminum alloy cable cores and the three nickel cable cores are extruded in the filling layer; the ethylene-propylene rubber insulating layer is extruded on the outside of the filling layer; and the heat-resistant and low-smoke-resistant PVC protective jacket is extruded on the outside of the ethylene-propylene rubber insulating layer. Raw materials comprise PVC resin, styrene, 3-(2-furyl) acrylic acid, ethyl cinnamate, trioctyl trimellitate, epoxidized soybean oil, calcium carbonate, a calcium-zinc composite stabilizer, dimethyl sulfoxide, triphenyl phosphate, dimethylacetal and the like. The heat-resistant low-smoke flame-retardant PVC cable has excellent heat deformation resistance and heat ageing resistance, is good in consistency and anti-cracking property, and has good softness; the problem of hot stress cracking is avoided; the heat-resistant low-smoke flame-retardant PVC cable has goodextruding processability, mobility, stretching strength and tensile elongation, process consumption can be reduced, and the manufacturing cost is reduced.

Description

technical field [0001] The invention relates to cable materials, in particular to a heat-resistant, low-smoke and flame-retardant PVC cable. Background technique [0002] Cross-linked linear low-density polyethylene, which is currently mainly used as a cable insulation material, is a thermosetting resin having not only excellent heat resistance, chemical resistance, etc., but also excellent electrical properties. And more recently, cross-linked 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 cannot be recycled due to difficult handling, resulting in 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 temperature are required, so the producti...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/02C08K3/26C08K5/523C08K5/12C08K5/14H01B3/44H01B7/02H01B7/29
CPCC08K2003/265C08L27/06C08L2201/02C08L2201/08C08L2203/202C08L2205/025C08L2205/03H01B3/443H01B7/0275H01B7/0291H01B7/292C08K13/02C08K3/26C08K5/523C08K5/12C08K5/14
Inventor 李艳琼
Owner CHONGQING UNIV OF ARTS & SCI
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