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Low-smoke zero-halogen flame-retardant polyolefin thermoplastic elastomer and preparation method thereof

A thermoplastic elastomer and polyolefin technology, applied in the direction of plastic/resin/wax insulators, conductors, insulated conductors, etc., can solve the problems of low softness, poor elasticity, poor wear resistance, etc., and achieve high cross-linking density and good elasticity and wear resistance, the effect of uniform cross-linking point

Inactive Publication Date: 2013-12-11
WUXI JAKE PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are disadvantages such as low softness, poor elasticity, and poor wear resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] First choose the ethylene-octene copolymer of 40 parts by weight, the EPDM rubber of 40 parts by weight, the ethylene vinyl acetate copolymer resin of 20 parts by weight, the aluminum hydroxide of 80 parts by weight, the magnesium hydroxide of 70 parts by weight, 4 The magnesium stearate of weight part, the antioxidant of 0.5 weight part, the polyethylene wax of 5 weight parts, the crosslinking agent of 1 weight part, the vulcanizing agent of 1 weight part.

[0034] Then, put ethylene-octene copolymer, ethylene-propylene-diene rubber, ethylene-vinyl acetate copolymer resin, aluminum hydroxide, magnesium hydroxide, magnesium stearate, antioxidant and polyethylene wax into a sealed container with a temperature of 155°C. In a type mixer, knead for 10 minutes to make a dough-like material.

[0035] Afterwards, the dough-like mass is cooled. After the dough-like material is cooled below 120°C, add crosslinking agent and vulcanizing agent, continue to heat up to 120°C, and k...

Embodiment 2

[0045] First choose the ethylene-octene copolymer of 45 parts by weight, the EPDM rubber of 30 parts by weight, the ethylene vinyl acetate copolymer resin of 25 parts by weight, the aluminum hydroxide of 90 parts by weight, the magnesium hydroxide of 60 parts by weight, 5 parts by weight The magnesium stearate of parts by weight, the antioxidant of 0.8 parts by weight, the polyethylene wax of 7 parts by weight, the crosslinking agent of 1.5 parts by weight, the vulcanizing agent of 1.2 parts by weight.

[0046] Then, put ethylene-octene copolymer, ethylene-propylene-diene rubber, ethylene-vinyl acetate copolymer resin, aluminum hydroxide, magnesium hydroxide, magnesium stearate, antioxidant and polyethylene wax into a sealed container with a temperature of 160°C. In a type mixer, knead for 11 minutes to make a dough-like material.

[0047] Afterwards, the dough-like mass is cooled. After the dough-like material is cooled below 120°C, add cross-linking agent and vulcanizing ag...

Embodiment 3

[0057] First select 50 parts by weight of ethylene-octene copolymer, 20 parts by weight of EPDM rubber, 30 parts by weight of ethylene vinyl acetate copolymer resin, 100 parts by weight of aluminum hydroxide, 50 parts by weight of magnesium hydroxide, 6 The magnesium stearate of parts by weight, the antioxidant of 1.0 parts by weight, the polyethylene wax of 8 parts by weight, the crosslinking agent of 2 parts by weight, the vulcanizing agent of 1.5 parts by weight.

[0058] Then, put ethylene-octene copolymer, ethylene-propylene-diene rubber, ethylene-vinyl acetate copolymer resin, aluminum hydroxide, magnesium hydroxide, magnesium stearate, antioxidant and polyethylene wax into a sealed container with a temperature of 165°C. In a type mixer, knead for 12 minutes to make a dough-like material.

[0059] Afterwards, the dough-like mass is cooled. After the dough-like material is cooled below 120°C, add crosslinking agent and vulcanizing agent, continue to heat up to 130°C, and...

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Abstract

The invention relates to a low-smoke zero-halogen flame-retardant polyolefin thermoplastic elastomer and a preparation method thereof and particularly relates to an elastic polyolefin particle for preparing a soft movable low-smoke zero-halogen flame-retardant cable insulation layer or sheath layer and a preparation method thereof. The low-smoke zero-halogen flame-retardant polyolefin thermoplastic elastomer is prepared by mixing raw materials such as an ethylene-octene copolymer, an ethylene propylene diene monomer, ethylene-vinyl acetate copolymerization resin, aluminum hydroxide, magnesium hydrate, magnesium stearate, an antioxidant, polyethylene wax, a crosslinking agent, a vulcanizing agent and the like, and extruding by using a six-temperature-stage double-screw extruder. When used for manufacturing electric wires and cables, the low-smoke zero-halogen flame-retardant polyolefin thermoplastic elastomer has the characteristics of simple machining process, low smoke, zero halogen, flame retardance, softness, good elasticity, good wear resistance and the like.

Description

technical field [0001] The invention relates to a plastic particle and a preparation method thereof. Specifically, it is polyolefin elastic particles used to manufacture soft mobile low-smoke halogen-free flame-retardant cable insulation layer or sheath layer and its preparation method. Background technique [0002] As we all know in the wire and cable manufacturing industry, flexible mobile cables are widely used in mobile electrical equipment such as electric welding, electric power, marine, mining, wind energy, nuclear power, etc. because of their unique softness, unique mechanical properties and physical properties. . At present, most of the raw materials used to produce the insulating layer and sheath layer of flexible mobile cables are low-smoke, halogen-free and flame-retardant polyolefin materials. This material has the following advantages: it is not easy to burn in case of fire. Even if it burns, it releases less smoke and no harmful gas. However, there are dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/16C08K13/02C08K3/22C08K5/098C08K5/375C08K5/14C08K5/3415B29B9/06B29C47/92H01B3/44H01B3/28H01B7/295B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/92704B29C2948/92895
Inventor 游泳祁建强环征程
Owner WUXI JAKE PLASTIC
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