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Microwave induced crosslinking polyolefin insulation material and preparation method thereof

A technology for inducing cross-linking and insulating materials, which is applied in the field of polyolefin insulating materials and its preparation, can solve the problems of polyolefin material strength, low heat distortion temperature solvent resistance, complex cross-linking process, and strict protection requirements. Enhanced water resistance, reduced production costs, and reduced equipment investment

Inactive Publication Date: 2013-12-11
HONGLONGJIANG ORIENT SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of the low strength, heat distortion temperature and solvent resistance of common polyolefin materials, as well as the complex process of the existing crosslinking method, harsh protection requirements, low production efficiency, high equipment investment, high product cost, and stable products. In view of the problem of poor performance, a microwave-induced cross-linked polyolefin insulating material and its preparation method are provided

Method used

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  • Microwave induced crosslinking polyolefin insulation material and preparation method thereof
  • Microwave induced crosslinking polyolefin insulation material and preparation method thereof

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specific Embodiment approach 1

[0015] Embodiment 1: A microwave-induced cross-linked polyolefin insulating material of this embodiment is characterized in that it is composed of 100 parts of dry polyolefin resin, 0.1-4 parts of silane coupling agent, 0.1-5 parts of microwave absorbing agent, 0.1-5 parts of water producing agent, 0.1-5 parts of multifunctional cross-linking agent, 0.01-5 parts of cross-linking accelerator and 0.07-0.5 parts of antioxidant; wherein, the dry polyolefin resin is at 80- It is obtained by drying polyolefin resin at a temperature of 120°C.

specific Embodiment approach 2

[0016] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the polyolefin resin is formed by mixing one or more of HDPE, MDPE, LDPE, LLDPE and EVA polyolefin elastomers in any ratio . Others are the same as in the first embodiment.

specific Embodiment approach 3

[0017] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the silane coupling agent is vinyltrimethoxysilane (A171), vinyltriethoxysilane (A151), γ- Aminopropyltriethoxysilane, Benzylazinomethyltriethoxysilane, γ-ethylenediazidopropyltrimethoxysilane, β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane It is mixed with one or more of γ-propylmethacrylate trimethoxysilane in any ratio. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a microwave induced crosslinking polyolefin insulation material and a preparation method thereof. The invention aims to solve the problems of low strength, low heat-deformation temperature and low solvent resistance in the common polyolefin material, and the problems of complex technique, harsh protecting requirements, low production efficiency, high product cost and poor stability in the existing crosslinking method. The microwave induced crosslinking polyolefin insulation material provided by the invention is prepared from dry polyolefin resin, silane coupling agent, microwave absorber, water bringing agent, polyfunctional group crosslinking agent, crosslinking accelerator and antioxidant. The preparation method comprises the following steps: 1. weighing the components; 2 banburying the components in a Banbury mixer, melting and mixing, and granulating in a single screw extruder to obtain sample granules; and 3. tabletting the obtained sample granules in a vulcanizer, and carrying out microwave induced crosslinking reaction in microwave equipment to obtain the microwave induced crosslinking polyolefin insulation material. The invention is applicable to the fields of wire cable insulation, polyolefin boards and tube products.

Description

technical field [0001] The invention relates to a polyolefin insulating material and a preparation method thereof. Background technique [0002] Polyolefin materials have the advantages of high tensile strength, good impact toughness, wear resistance, self-lubrication, good electrical properties, and excellent processability. It has been widely used in electronics, electrical appliances, automobiles, machinery manufacturing, chemicals, food, Daily necessities and medical and health fields. However, in the application field of cable materials, the strength, heat distortion temperature and solvent resistance of ordinary polyolefin materials are low, which cannot meet the requirements of practical applications. [0003] For the above-mentioned shortcomings of polyolefin materials, cross-linking is an effective solution. At present, the existing preparation methods for crosslinking polyolefin materials mainly include chemical crosslinking, electron beam radiation crosslinking ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K13/02C08K3/34C08K3/38C08K3/22C08K3/30C08J3/28C08J3/24
Inventor 高广刚刘岩鲍文波祁鑫张贵董继光
Owner HONGLONGJIANG ORIENT SCI & TECH
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