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Salt corrosion resistant low smoke halogen-free flame-retardant polyolefin elastomers and process for their manufacture

A polyolefin elastomer and polyolefin technology, applied in the field of cables, can solve problems such as being easily corroded by seawater, inconvenient material processing and application, and expensive radiation cross-linking equipment, etc., achieving convenient processing, good economic benefits and promotion value , good softness

Inactive Publication Date: 2009-10-07
GUANGZHOU PANYU CABLE WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because radiation crosslinking equipment is expensive, most companies do not have it, and material processing and application are inconvenient
[0005] 3. Due to the use of polar materials such as ethylene-vinyl acetate copolymer EVA as the base material, it is easily corroded by seawater and cannot be applied to marine operating equipment such as ships

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The salt-corrosion-resistant, low-smoke, halogen-free, and flame-retardant polyolefin elastomer of the present invention is composed of component A and component B by kneading, component A: 70 parts of ethylene-octene copolymer POE, 30 parts of ethylene-vinyl acetate copolymer EVA, 10 parts of zinc stearate, 40 parts of aluminum hydroxide, 80 parts of magnesium hydroxide, 10 parts of polyethylene wax, 30 parts of superfine talc powder, 5 parts of carbon black, component B: 5 parts of dicumyl peroxide DCP, 2 parts of m-phenylene bismaleimide HVA-2, the composition is calculated by parts by weight. First mix all the materials of component A for 7 minutes until the components are evenly dispersed, then add component B and knead for 2 minutes to obtain a salt-corrosion-resistant, low-smoke, halogen-free, flame-retardant polyolefin elastomer composition, which is salt-corrosion-resistant and low-smoke The cross-linking of the halogen-free flame-retardant polyolefin elastomer...

Embodiment 2

[0039] The salt-corrosion-resistant low-smoke halogen-free flame-retardant polyolefin elastomer of the present invention is composed of component A and component B by mixing, component A: 80 parts of ethylene-octene copolymer POE, 20 parts of ethylene-vinyl acetate copolymer EVA, 15 parts of zinc stearate, 50 parts of aluminum hydroxide, 100 parts of magnesium hydroxide, 12 parts of polyethylene wax, 50 parts of superfine talcum powder, and 8 parts of carbon black. Component B: 6 parts of dicumyl peroxide DCP, 3 parts of m-phenylene bismaleimide HVA-2, the composition is calculated by weight. When kneading, first knead all the materials of component A for 8 minutes until the components are basically dispersed evenly, then add component B and knead for 3 minutes to obtain a salt-corrosion-resistant low-smoke halogen-free flame-retardant polyolefin elastomer composition. It is processed and produced by ordinary steam sulfuration units, the vulcanization steam pressure is 18MPa, ...

Embodiment 3

[0041] The salt-corrosion-resistant low-smoke halogen-free flame-retardant polyolefin elastomer of the present invention is composed of component A and component B by mixing, component A: 75 parts of ethylene-octene copolymer POE, 25 parts of ethylene-vinyl acetate copolymer EVA, 13 parts of zinc stearate, 48 parts of aluminum hydroxide, 90 parts of magnesium hydroxide, 11 parts of polyethylene wax, 45 parts of superfine talc, 6 parts of carbon black. Component B: 6 parts of dicumyl peroxide DCP, 3 parts of m-phenylene bismaleimide HVA-2, the composition is calculated by weight. When kneading, first knead all the materials of component A for 7-8 minutes until the components are basically dispersed evenly, then add component B and knead for 2-3 minutes to obtain the salt-corrosion-resistant low-smoke halogen-free flame-retardant polyolefin elastic The body composition is processed and produced by ordinary steam sulfuration units, the vulcanization steam pressure is 15-18MPa, an...

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Abstract

Salt corrosion resistant low smoke halogen-free flame-retardant polyolefin elastomers and process for their manufacture of the present invention belongs to cable field, composed of mixing of A ingredient and B ingredient, A ingredient: ethylene-octylene copolymer POE 70-80 parts, ethylene-vinyl acetate copolymer EVA 20-30 parts, zinc stearate 10-15 parts, aluminium hydroxide 40-50 parts, magnesium hydroxide 80-100 parts, polyethylene wax 10-12 parts, superfine talcum powder 30-50 parts, carbon black 5-8 parts, B ingredient: dicumyl peroxide DCP 5-6 parts, inner-phenylene bimaleimide HVA-2 2-3 parts. During mixing, first mixing all materials of the A ingredient for 7-8 minutes until all the components disperse uniformly, then adding B ingredient and mixing for 2-3 minutes to get the salt corrosion resistant low smoke halogen-free flame-retardant polyolefin elastomers composition. The present invention is provided with advantages of salt corrosion resistant, perfect suppleness, convenient manufacturing, favourable economic benefit and promotional value.

Description

technical field [0001] The invention discloses a salt-corrosion-resistant, low-smoke, halogen-free, flame-retardant polyolefin elastomer and a preparation method thereof, which belong to the field of electric cables, and in particular discloses a salt-corrosion-resistant, low-smoke, halogen-free, flame-retardant polyolefin elastomer and its Preparation. Background technique [0002] Low-smoke and halogen-free polyolefin materials have been widely used due to their characteristics of flame retardancy, low smoke generation, and no release of harmful gases such as hydrogen halide during combustion, but there are also the following problems: [0003] 1. The material has high hardness, and its Shore hardness is greater than 90A. [0004] 2. Irradiation cross-linking is required during processing. Because radiation crosslinking equipment is expensive, most enterprises do not have it, and material processing and application are inconvenient. [0005] 3. Due to the use of polar m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K13/02C08K5/098C08K3/22C08K3/34C08K3/04C08K5/14
Inventor 谢静王锦荣卢广业
Owner GUANGZHOU PANYU CABLE WORKS
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