Radiation crosslinking flame-retardant polyolefin heat-shrinkable material and preparation method thereof

A radiation cross-linked, polyolefin substrate technology, applied in plastic/resin/wax insulators, organic insulators, etc., can solve the problem of radiation cross-linked flame retardant polyolefin heat shrinkable materials failing to pass the thermal shock test, and achieve low prices. , the effect of easy purchase of raw materials and simple preparation method

Inactive Publication Date: 2009-03-18
CHANGYUAN GRP +1
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  • Abstract
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problem that the existing radiation-crosslinked flame-retardant polyolefin heat-shrinkable materials cannot pass the thermal shock test, and provide a preparation method that can pass the thermal shock test, is environmentally friendly, and has excellent insulation performance. Simple, easy-to-purchase raw materials, low-cost, radiation-crosslinked flame-retardant polyolefin heat-shrinkable material suitable for industrial production, and a preparation method thereof

Method used

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  • Radiation crosslinking flame-retardant polyolefin heat-shrinkable material and preparation method thereof

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Embodiment Construction

[0021] The present invention proposes a radiation-crosslinked flame-retardant polyolefin heat-shrinkable material, which is composed of substances in the following weight ratios:

[0022] 100 parts of polyolefin substrate;

[0023] Composite flame retardant 0-100 parts;

[0024] 1 to 3 parts of lubricant;

[0025] Color masterbatch 0~5 parts;

[0026] Composite antioxidant 1-5 parts;

[0027] Titanium dioxide 0-2 parts.

[0028] The polyolefin base material is a combination of one or more of the following substances: ethylene-vinyl acetate copolymer EVA, polyethylene, ethylene-propylene-diene rubber, and ethylene-octene copolymer.

[0029] The melt index MI of the above-mentioned ethylene-vinyl acetate copolymer is 1-6 g / 10 min, and the vinyl acetate content VA% is 14-40%. The polyethylene melt index MI is 1-10 g / 10 min. The above-mentioned EPDM rubber has a Mooney viscosity (ML1+4, 105°C) of 30-70, an ethylene content of 50-70%, a propylene content of 30-50%, and an ENB...

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Abstract

The invention relates to a radiation crosslinking flame-retardant polyolefin thermal shrinking material, which comprises the following substances in weight portion: 100 portions of polyolefin base material, 0 to 100 portions of composite flame retardant, 1 to 3 portions of lubricating agent, 0 to 5 portions of color master batch, 1 to 5 portions of composite antioxidant and 0 to 2 portions of titanium pigment. The radiation crosslinking flame-retardant polyolefin thermal shrinking material can pass a thermal shock test, can be used for manufacturing various thermal shrinking devices, has the advantages of environmental protection, excellent insulating property, simple preparation method, easily bought raw materials and low cost, and is suitable for industrialized production.

Description

technical field [0001] The invention relates to a radiation-crosslinked flame-retardant polyolefin heat-shrinkable material capable of passing a thermal shock test and a preparation method thereof. Background technique [0002] Radiation cross-linked flame-retardant polyolefin heat-shrinkable materials have a wide range of applications, including insulation and protection of cables in aerospace, aviation, automobiles, and military industries. However, the existing radiation-crosslinked flame-retardant polyolefin heat-shrinkable materials cannot pass the thermal shock test, which has become a technical bottleneck for the export of such products abroad. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the problem that the existing radiation-crosslinked flame-retardant polyolefin heat-shrinkable materials cannot pass the thermal shock test, and provide a preparation method that can pass the thermal shock test, is en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L23/16C08K13/02B29C47/20B29C47/92B29C71/04B29B9/02H01B3/44C08K3/22C08K3/02C08K5/3492C08K5/13C08K5/18B29C48/32B29C48/92
CPCB29C47/92
Inventor 刘军曾志安麦家星聂云鲁尔兵赵成刚
Owner CHANGYUAN GRP
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