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Heat conductive anti static and non-halogen flame-retarding polymer composite insulating material for temperature sensitive detection cable

A composite insulation and detection optical cable technology, which is applied in the direction of organic insulators, plastic/resin/wax insulators, fiber mechanical structures, etc., can solve the problems of poor antistatic and flame retardancy, large thermal conductivity, and poor elongation, and achieve good extension Improvement of performance and temperature sensitivity and cost reduction

Inactive Publication Date: 2011-05-25
上海快鹿电线电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN1687207A discloses a kind of base material with HDPE and adds Al 2 o 3 , SiO 2 , MgO and other thermally conductive fillers and coupling agents, a thermally conductive composite material made by irradiation crosslinking, this is an insulating material, but its antistatic and flame retardancy are poor, and it is also rigid
CN1388202A discloses a kind of heat-conducting composite material which takes PE and PP as base material, adds graphite powder, carbon black, carbon fiber, metal powder, and coupling agent and antioxidant, but it is a conductive material if the thermal conductivity is large. and poor extensibility
CN1333801A discloses a kind of adding aluminum, Al in polymer 2 o 3 , copper, magnesium, brass, BN, C and other thermal conductive fillers made of thermally conductive composite materials, poor flame retardancy, and rigid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Parts by volume: 50 parts of EVA, 45 parts of nano AlN, 5 parts of phosphorus nitrogen flame retardant.

[0019] First mix EVA on a double-roller mixer at room temperature for 5 minutes, then add other powders and mix for 15 minutes.

[0020] The thermal conductivity λ=1.31W / m.K and the surface resistivity ρ of the composite material prepared by mixing s =2.3×10 8 Ω, oxygen index OI=28, elongation at break 158%

Embodiment 2

[0022] Parts by volume: 60 parts of EVA, 35 parts of nano ZnO, 5 parts of phosphorus nitrogen flame retardant.

[0023] Except that the raw materials are different, all the other preparation methods are the same as in Example 1.

[0024] The λ=1.32W / m.K, ρ of the composite material obtained by mixing s =6.5×10 8 Ω, OI=28, elongation at break 166%.

Embodiment 3

[0026] Parts by volume: 65 parts of EVA, 15 parts of nano-AlN, 15 parts of nano-SiC, and 5 parts of phosphorus-nitrogen flame retardant.

[0027] Except that the raw materials are different, all the other preparation methods are the same as in Example 1.

[0028] The λ=1.35W / m.K, ρ of the composite material obtained by mixing s =8.7×10 8 Ω, OI=29, elongation at break 176%.

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Abstract

The invention relates to polymer material, which discloses thermal conductive anti-static halogen-free flame-retardant temperature-sensitive insulating polymer composite material. The polymer material contains the materials with the following volume portions: 50 to 100 portions of polyethylene-vinyl acetate copolymer; 20 to 100 portions of thermal conductive filler; and 5 to 20 portions of phosphorus-nitrogen flame retardant. The insulating polymer composite material of the invention is applicable to the preparation of thermo-sensitive detection fiber optic cables.

Description

technical field [0001] The invention relates to a polymer material with special functions, in particular to a polymer composite insulating material for heat-conducting, anti-static, halogen-free and flame-retardant temperature-sensitive detection optical cables. Background technique [0002] Due to the flammable and explosive environment in coal mines and chemical companies, conventional conductive detectors cannot meet the safety requirements due to heat and electric sparks. Therefore, similar non-conductive optical cable type detectors are required in flammable and explosive environments. detector. However, the polymer materials used in general optical cables are characterized by low thermal conductivity and high insulation. It brings the danger of being insensitive to temperature and prone to static electricity accumulation. According to the analysis of many accidents, it is found that fire accidents caused by static electricity occur from time to time. Therefore, heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08K3/28C08K3/22C08K3/34C08K3/38H01B3/44G02B6/44
Inventor 吴海生王寿泰
Owner 上海快鹿电线电缆有限公司
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