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Radiation-crosslinking flame retardant polyolefin material for car thin-wall electric wire and preparation method of material

A polyolefin and thin-wall technology, applied in the field of plastic particles and its preparation, can solve the problems of low decomposition temperature of polyvinyl chloride, poor aging resistance, and restrictions on use occasions, and achieve oil resistance, low temperature resistance, and steel resistance. Excellent needle scraping performance and improved aging resistance

Active Publication Date: 2013-11-27
WUXI JAKE PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyvinyl chloride has the advantages of low price and easy processing. However, polyvinyl chloride has disadvantages such as low decomposition temperature and poor high temperature resistance, which not only restricts its development, but also limits its use.
However, the automotive thin-walled wire insulation layer made of the same kind of irradiation cross-linkable flame-retardant polyolefin particles on the market has the defects of poor aging resistance, poor scratch resistance, poor processing performance, and slow extrusion speed. Meet the requirements of automotive thin-walled wires with a temperature resistance rating of 125 degrees Celsius

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] First select the ethylene-propylene copolymer resin of 40 parts by weight, the ethylene vinyl acetate resin of 50 parts by weight, the cyanoacrylate rubber of 9 parts by weight, the flame retardant of 45 parts by weight, the antioxidant of 0.4 parts by weight, the antioxidant of 0.6 parts by weight part of crosslinking agent, 0.3 part by weight of anti-degradation agent and 0.2 part by weight of lubricant.

[0035] Then, the ethylene-propylene copolymer resin, ethylene vinyl acetate resin, cyanoacrylate rubber and crosslinking agent were added together into an internal mixer at a temperature of 160° C., and kneaded for 10 minutes to obtain a mixed resin.

[0036] Afterwards, the mixed resin is fed into a twin-screw extruder with six temperature sections for a mild chemical crosslinking reaction and a pre-crosslinked block mixture. The temperatures of the six temperature sections of the twin-screw extruder are respectively 140 degrees Celsius, 160 degrees Celsius, 175 de...

Embodiment 2

[0049] First select the ethylene-propylene copolymer resin of 45 parts by weight, the ethylene vinyl acetate resin of 45 parts by weight, the cyanoacrylate rubber of 10 parts by weight, the flame retardant of 50 parts by weight, the antioxidant of 0.8 parts by weight, the antioxidant of 0.8 parts by weight Parts of crosslinking agent, 0.5 parts by weight of anti-beta ray degradation agent and 0.3 parts by weight of lubricant.

[0050] Then, ethylene-propylene copolymer resin, ethylene vinyl acetate resin, cyanoacrylate rubber and crosslinking agent were added together into an internal mixer at a temperature of 165° C., and kneaded for 11 minutes to obtain a mixed resin.

[0051] Afterwards, the mixed resin is fed into a twin-screw extruder with six temperature sections for a mild chemical crosslinking reaction and a pre-crosslinked block mixture. The temperatures of the six temperature sections of the twin-screw extruder are respectively 140 degrees Celsius, 160 degrees Celsiu...

Embodiment 3

[0064] First select the ethylene-propylene copolymer resin of 50 parts by weight, the ethylene vinyl acetate resin of 40 parts by weight, the cyanoacrylate rubber of 11 parts by weight, the flame retardant of 55 parts by weight, the antioxidant of 1.0 parts by weight, the antioxidant of 1.0 parts by weight part of crosslinking agent, 0.6 part by weight of anti-beta ray degradation agent and 0.5 part by weight of lubricant.

[0065] Then, ethylene-propylene copolymer resin, ethylene vinyl acetate resin, cyanoacrylate rubber and cross-linking agent were added together into an internal mixer at a temperature of 170° C., and kneaded for 12 minutes to obtain a mixed resin.

[0066] Afterwards, the mixed resin is fed into a twin-screw extruder with six temperature sections for a mild chemical crosslinking reaction and a pre-crosslinked block mixture. The temperatures of the six temperature sections of the twin-screw extruder are respectively 140 degrees Celsius, 160 degrees Celsius,...

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Abstract

The invention relates to a radiation-crosslinking flame retardant polyolefin material for a car thin-wall electric wire and a preparation method of the material. The radiation-crosslinking flame retardant polyolefin material for the car thin-wall electric wire is formed by extruding through an extruder after mixing and mulling the materials including ethylene-propylene copolymer resin, ethylene vinyl acetate resin, cyanoacrylate rubber, a flame retardant, an antioxidant, a cross-linking agent, a beta ray-resistant degradation agent, a lubricant and the like through a muller. The car thin-wall electric wire which is manufactured by the radiation-crosslinking flame retardant polyolefin material has high temperature resistance and low temperature resistance, is unlimited in applicable range, has better aging resistance, scraping resistance and processing performance, and is quick in extruding speed, so that the requirements of the car thin-wall electric wire with a temperature-resistant level of 125 DEG C can be satisfied. Moreover, the radiation-crosslinking flame retardant polyolefin material can be used as the material for manufacturing the car thin-wall electric wire with a higher temperature-resistant level (125 DEG C).

Description

technical field [0001] The invention relates to a plastic particle and a preparation method thereof. Specifically, it is the raw material used to make the insulation layer of thin-walled wires for automobiles with a high temperature resistance level (125 degrees Celsius) --- radiation crosslinkable flame-retardant polyolefin particles and its preparation method. Background technique [0002] With the rapid development of the automobile industry, the safety, operability, economy, environmental protection and electronicization of automobiles have also been developed rapidly. With the increase of engine power, temperature rise and the requirements of automobile lightweight, the requirements for the insulation coating of automobile wires are getting higher and higher, which requires both thinner thickness and higher High and low temperature resistance, wear resistance and aging resistance. [0003] At present, the raw materials used to make the insulation layer of automobile t...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/08C08K13/02C08K5/3492C08K3/22C08K5/134C08K5/13C08K5/14C08J3/24B29C47/92B29C48/92
Inventor 游泳祁建强环征程
Owner WUXI JAKE PLASTIC
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