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Preparation process of high-efficiency irradiation cross-linked ethylene-tetrafluoroethylene copolymer insulating material

A technology of tetrafluoroethylene and cross-linked ethylene, used in insulators, organic insulators, plastic/resin/wax insulators, etc.

Inactive Publication Date: 2021-07-16
新乡市创美科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the factors of the preparation process, there are still some deficiencies in the performance of the final product of this type of material. Therefore, it is necessary to improve the existing preparation process to further improve the comprehensive performance of this type of material.

Method used

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Experimental program
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Effect test

Embodiment

[0037] The preparation process of the high-efficiency radiation cross-linked ethylene-tetrafluoroethylene copolymer insulating material comprises the following steps:

[0038] Step S1, weighing the raw materials respectively according to the following proportions by weight:

[0039] Recipe 1:

[0040] Ethylene-tetrafluoroethylene copolymer 100 kg;

[0041] Polymethyl methacrylate 10 kg;

[0042] Perfluoroethylene-propylene copolymer 3 kg;

[0043] Calcium stearate 3 kg;

[0044] 8 kg of antimony trioxide;

[0045] Cross-linking agent (triallyl isocyanurate) 5 kg;

[0046] β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate 1 kg;

[0047] 3 kg of 3-aminopropyltriethoxysilane;

[0048] Recipe 2:

[0049] Ethylene-tetrafluoroethylene copolymer 100 kg;

[0050] Polymethyl methacrylate 2 kg;

[0051] Perfluoroethylene-propylene copolymer 5 kg;

[0052] Calcium stearate 0.5 kg;

[0053] Antimony trioxide 15 kg;

[0054] Cross-linking agent (triallyl isocyanurat...

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Abstract

The invention discloses a preparation process of a high-efficiency irradiation cross-linked ethylene-tetrafluoroethylene copolymer insulating material. The preparation process comprises the following specific steps: uniformly mixing polymethyl methacrylate and perfluoroethylene-propylene copolymer resin, adding a cross-linking agent, and mixing to obtain a mixture A; mixing an ethylene-tetrafluoroethylene copolymer, antimony trioxide, n-octadecanol beta-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 3-aminopropyltriethoxysilane and calcium stearate to obtain a mixture B; adding the mixture A and the mixture B into a double-screw extruder, and extruding and granulating under a preset blending condition to obtain a target product. On the premise of ensuring good basic mechanical properties, the irradiation dose of the irradiation crosslinked ethylene-tetrafluoroethylene copolymer insulating material is greatly reduced, and meanwhile, the properties, such as tensile strength, high temperature resistance grade, high and low temperature cycle resistance and the like, of a finally obtained target product are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of preparation of ethylene-tetrafluoroethylene copolymer insulating materials, and in particular relates to a preparation process of high-efficiency irradiation crosslinked ethylene-tetrafluoroethylene copolymer insulating materials. Background technique [0002] In recent years, with the rapid development of modern industrial industries such as electronic appliances, automobiles, and high-speed rail, the requirements for various types of cables have become higher and higher. In applications that need to withstand high temperature conditions for a long time, the requirements for high temperature-resistant cables are also high. keep improving. In the cable industry, special high-temperature-resistant cables are usually used to meet this demand, and the use of radiation-crosslinked high-temperature-resistant cable materials is a common and effective solution for manufacturing such cables. The current irradiat...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L33/12C08L27/18C08K13/02C08K5/098C08K3/22C08K5/134C08K5/544B29C48/92B29C48/625B29C48/505H01B3/44
CPCB29C48/505B29C48/625B29C48/92B29C2948/92704C08L23/0892C08L2201/08C08L2203/202C08L2312/06H01B3/441C08L33/12C08L27/18C08K13/02C08K5/098C08K3/2279C08K5/1345C08K5/544
Inventor 吕振威尚亦安
Owner 新乡市创美科技股份有限公司
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