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Low-smoke halogen-free irradiated polyethylene with high strength and high fire resistance and preparation method thereof

A high flame-retardant, high-strength technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of poor mechanical properties and low heat-resistant temperature

Inactive Publication Date: 2017-03-01
江苏永鼎盛达电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The content of the present invention is to provide a polyolefin irradiated cable material with high temperature resistance, high strength and halogen-free flame retardancy and its Preparation

Method used

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  • Low-smoke halogen-free irradiated polyethylene with high strength and high fire resistance and preparation method thereof

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Embodiment 1

[0030] Put ethylene copolymer, ethylene vinyl acetate copolymer, flame retardant, interfacial compatibilizer, and antioxidant into the internal mixer, and the processing temperature range is 120-145°C. The mass ratio of ethylene copolymer, ethylene vinyl acetate copolymer, flame retardant, interfacial compatibilizer and antioxidant is 100:50:250:20:10:2.5. Among them, the VA content in EVA is 18%, the flame retardant is aluminum hydroxide, the interface compatibilizer is maleic anhydride grafted ethylene-vinyl acetate copolymer, the lubricant is stearic acid, and the antioxidant is stearic acid. Alcohol Esters (Antioxidant 1076).

[0031] EVA is made from ethylene-vinyl acetate copolymer (also known as ethylene-vinyl acetate copolymer) by copolymerization of ethylene (E) and vinyl acetate (VA). The English name is: Ethylene Vinyl Acetate, referred to as EVA, E / VAC.

[0032] Table 1 Comparative example 1, comparative example 2, embodiment 1 make each performance data table o...

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Abstract

The invention relates to low-smoke halogen-free irradiated polyethylene with high strength and high fire resistance and a preparation method thereof. The low-smoke halogen-free irradiated polyethylene comprises an ethylene copolymer and an ethylene-vinyl acetate copolymer. The low-smoke halogen-free irradiated polyethylene is characterized in that the polyethylene comprises a flame retardant, an interfacial compatibilizer and an antioxidant, and a mass ratio of the ethylene-vinyl acetate copolymer, ethylene copolymer, flame retardant, interfacial compatibilizer to antioxidant is 100: 50: (100-250): (10-50): (0.5-2.5). Through an irradiation method, the combination of low smoke, no halogen, flame retardance, heat resistance, high strength and high oxygen index of the polyethylene cable material is realized. The polyethylene as a cable material can be widely used in fields of electronics, building materials and automobiles.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a high-strength, high-flame-retardance, low-smoke, halogen-free, flame-retardant irradiated polyolefin material, which is a high-temperature-resistant, high-strength, halogen-free flame-retardant polyolefin irradiated cable materials and their preparation methods. Background technique [0002] As an important pillar industry of the national economy, the wire and cable industry has formed a considerable scale in our country. As a processing industry, the quality of raw materials directly determines the quality of cables. The existing halogen-free flame-retardant polyethylene cable material has the disadvantages of low heat-resistant temperature and poor mechanical properties. For low-smoke halogen-free flame-retardant cables that are widely used, our company invented the formula and its preparation method. Contents of the invention [0003] The content of the present i...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L51/06C08K13/02C08K3/22C08K5/09C08K5/134H01B3/44
CPCC08L23/08C08L2201/02C08L2201/08C08L2201/22C08L2203/202C08L2205/02C08L2205/03H01B3/44
Inventor 孟凡宝淦贵生陆明明何闯
Owner 江苏永鼎盛达电缆有限公司
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