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High wear-resistant low-smoke halogen-free irradiation crosslinking sheathing material and preparation method thereof

A sheath material, high wear resistance technology, used in plastic/resin/wax insulators, organic insulators, etc., can solve the problems of poor wear resistance, poor appearance of wires and cables, and achieve excellent flame retardant performance, good resistance The effect of low temperature performance and excellent wear resistance

Active Publication Date: 2012-10-17
JIANGSU DASHENG POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the premise of ensuring the excellent flame retardant properties of wires and cables, high filling of flame retardants is usually required, resulting in poor appearance and poor wear resistance of wires and cables.

Method used

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  • High wear-resistant low-smoke halogen-free irradiation crosslinking sheathing material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A highly wear-resistant low-smoke halogen-free radiation cross-linked sheath material is composed of the following components:

[0033] EVA: 35kg, Modified UHMWPE: 3kg, Ethylene-Methacrylic Acid Sodium Salt Copolymer: 3kg, Aluminum Hydroxide: 50kg, Carbon Black: 3kg, Compatibilizer: 4kg, Antioxidant Oxygen: 0.3kg, Lubricant: 0.5kg, Silicone Powder: 1.2kg

[0034] In the ethylene-vinyl acetate copolymer, the mass percentage of vinyl acetate is 28%. The modified ultra-high molecular weight polyethylene has a molecular weight of 3 million and a melt index of 5. The aluminum hydroxide is surface-modified aluminum hydroxide of a silane coupling agent, and the mesh number is 6000 meshes. The carbon black is thermal cracking carbon black, and the mass percentage of carbon is ≥99%. The compatibilizer is maleic anhydride grafted EVA, and the graft ratio is 1.5%. The antioxidant is tetrakis [beta-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester. The lubr...

Embodiment 2

[0039] A highly wear-resistant low-smoke halogen-free radiation cross-linked sheath material is composed of the following components:

[0040] EVA: 30 kg, modified ultra-high molecular weight polyethylene: 5 kg, ethylene-methacrylic acid sodium salt copolymer: 5 kg, aluminum hydroxide: 51 kg, carbon black: 3 kg, compatibilizer: 4 kg, anti- Oxygen: 0.3kg, Lubricant: 0.5kg, Silicone Powder: 1.2kg

[0041] In the ethylene-vinyl acetate copolymer, the mass percentage of vinyl acetate is 26%. The modified ultra-high molecular weight polyethylene has a molecular weight of 3 million and a melt index of 5. The aluminum hydroxide is surface-modified aluminum hydroxide of a silane coupling agent, and the mesh number is 5000 meshes. The carbon black is thermal cracking carbon black, and the mass percentage of carbon is ≥99%. The compatibilizer is maleic anhydride grafted ethylene octene copolymer, and the graft ratio is 1.5%. The antioxidant is tetrakis [beta-(3,5-di-tert-butyl-4-hyd...

Embodiment 3

[0044] A highly wear-resistant low-smoke halogen-free radiation cross-linked sheath material is composed of the following components:

[0045] EVA: 32 kg, modified ultra-high molecular weight polyethylene: 4 kg, ethylene-methacrylic acid sodium salt copolymer: 4 kg, aluminum hydroxide: 52 kg, carbon black: 3 kg, compatibilizer: 3 kg, anti- Oxygen: 0.3kg, Lubricant: 0.5kg, Silicone Powder: 1.2kg

[0046] In the ethylene-vinyl acetate copolymer, the mass percentage of vinyl acetate is 28%. The modified ultra-high molecular weight polyethylene has a molecular weight of 3 million and a melt index of 5. The aluminum hydroxide is surface-modified aluminum hydroxide of a silane coupling agent, and the mesh number is 6000 meshes. The carbon black is thermal cracking carbon black, and the mass percentage of carbon is ≥99%. The compatibilizer is maleic anhydride grafted EVA, and the graft ratio is 1.5%. The antioxidant is tetrakis [beta-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate...

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Abstract

The invention discloses a high wear-resistant low-smoke halogen-free irradiation crosslinking sheathing material and a preparation method thereof. The high wear-resistant low-smoke halogen-free irradiation crosslinking sheathing material is prepared from the following components in parts by weight: 20-40 parts of ethylene-vinyl acetate copolymer, 1-10 parts of modified ultra-high molecular weight polyethylene, 1-10 parts of ethylene-methacrylic acid sodium salt copolymer, 40-60 parts of aluminum hydroxide, 4-8 parts of carbon black, 1-5 parts of compatilizer, 0.3-0.9 parts of antioxygen, 0.4-1.0 parts of lubricant and 0.5-2 parts of silicone powder. The product has excellent wear resistance and low temperature resistance, and can pass a wear-resistant test.

Description

Technical field: [0001] The invention belongs to the technical field of organic high polymers, and more particularly relates to a high wear-resistant low-smoke halogen-free radiation cross-linked sheath material and a preparation method thereof. Background technique: [0002] In today's increasingly developed industrialized society, energy and information are the two pillars of society. Whether it is electric energy or information transmission, wires and cables are inseparable, especially large commercial and entertainment centers, subways, tunnels and nuclear power plants. Although ordinary PVC insulated wires and cables have excellent mechanical, electrical and processing properties, they still have defects such as high calorific value, and a large amount of toxic and harmful corrosive gases and thick smoke will be released when burned. This has prompted the wire and cable industry to focus on the development of halogen-free and low-smoke products on a global scale. Howev...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/26C08L51/06C08K13/06C08K9/06C08K3/22C08K3/04C08K5/134C08K5/098C08K3/36C08J3/24B29B9/06B29C47/92H01B3/44B29C48/92
CPCB29C48/397
Inventor 罗超华范魏魏
Owner JIANGSU DASHENG POLYMER
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