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Efficient ultraviolet crosslinking low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof

A technology of polyolefin cable material and ultraviolet light, which is applied in the direction of circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of poor cross-linking efficiency affecting cable performance, etc., and achieves easy preparation methods, good stability, and cross-linking. The effect of high connection efficiency

Pending Publication Date: 2021-02-02
WUXI JAKE PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the performance of the cable is affected by the poor crosslinking efficiency during the preparation of the existing crosslinked cable, and to provide a high-efficiency ultraviolet light crosslinked low-smoke halogen-free flame-retardant polyolefin cable material and its preparation method

Method used

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  • Efficient ultraviolet crosslinking low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In parts by weight, 50 parts of polyethylene-vinyl acetate resin, 20 parts of ethylene-butylene copolymer, 20 parts of maleic anhydride grafted polyethylene resin, 5 parts of linear low-density polyethylene resin, 1 part of 4,4 '-thiobis(6-tert-butyl-3-methylphenol), 1 part polyethylene wax, 1 part benzophenone, 1 part 1-hydroxycyclohexyl phenyl ketone, and 5 parts trimethacrylic acid After the trimethylol propyl ester was stirred evenly in the mixer, it was added to the internal mixer, and then 150 parts of aluminum hydroxide was added to the internal mixer, and it was internally kneaded at 170° C. for 13 minutes. After banburying is completed, it is granulated by twin-screw and then single-screw to obtain highly efficient UV-crosslinked low-smoke, halogen-free, flame-retardant polyolefin cable compound.

Embodiment 2

[0026] In parts by weight, 45 parts of polyethylene-vinyl acetate resin, 22 parts of butadiene copolymer, 25 parts of polyethylene-vinyl acetate resin, 10 parts of low-density polyethylene resin, 1 part of 4,4'-sulfur Bis(6-tert-butyl-3-methylphenol), 1 part of bis(3,5-tertiary butyl-4-hydroxyphenyl) sulfide, 1.5 parts of polyethylene wax, 1 part of benzophenone , 2 parts of 2-hydroxyl-2-methyl-1-phenylacetone and 4 parts of ditrimethylolpropane tetraacrylate are stirred evenly in a mixer and then added to the internal mixer, and then 120 1 part of aluminum hydroxide and 60 parts of magnesium hydroxide, banburying at 170°C for 13 minutes. After banburying is completed, it is granulated by twin-screw and then single-screw to obtain highly efficient UV-crosslinked low-smoke, halogen-free, flame-retardant polyolefin cable compound.

Embodiment 3

[0028] In parts by weight, 30 parts of polyethylene-vinyl acetate resin, 30 parts of ethylene-butylene copolymer, 15 parts of maleic anhydride grafted polyethylene resin, 15 parts of high-density polyethylene resin, 2 parts of 4,4' - Thiobis(6-tert-butyl-3-methylphenol), 1 part polyethylene wax, 2 parts benzophenone, 2 parts 2-hydroxy-2-methyl-1-phenylacetone and 3 parts Stir trimethylolpropyl trimethacrylate evenly in a mixer and add it to the internal mixer, then add 160 parts of aluminum hydroxide and 20 parts of magnesium hydroxide to the internal mixer, and banbury at 170 ° C for 13 minutes . After banburying is completed, it is granulated by twin-screw and then single-screw to obtain highly efficient UV-crosslinked low-smoke, halogen-free, flame-retardant polyolefin cable compound.

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Abstract

The invention relates to an efficient ultraviolet crosslinking low-smoke halogen-free flame-retardant polyolefin cable material and a preparation method thereof. The cable material comprises the following components in parts by weight: 30-50 parts of polyethylene vinyl acetate resin, 20-30 parts of elastomer resin, 15-25 parts of a compatilizer, 5-15 parts of polyethylene resin, 1-2 parts of an antioxidant, 1-2 parts of a lubricant, 2-4 parts of a photoinitiator, 3-5 parts of a crosslinking agent and 150-200 parts of a flame retardant. The raw material components are simple and easy to obtain,the preparation method is simple, and the crosslinking efficiency of the polyolefin cable material is improved by utilizing the combination of multiple free radical photoinitiators; on the premise ofensuring the mechanical properties and aging resistance of the material, a proper amount of halogen-free flame retardant is added, so that the material has high flame retardancy, the finally preparedcable material is uniform in crosslinking, high in stability and high in crosslinking efficiency, and the production efficiency of wires and cables is improved in a disguised manner.

Description

technical field [0001] The invention relates to a high-efficiency ultraviolet light cross-linked low-smoke halogen-free flame-retardant polyolefin cable material and a preparation method thereof, belonging to the technical field of electric wire and cable preparation. Background technique [0002] In recent years, with the vigorous development of the wire and cable industry, the requirements for wire and cable materials are also getting higher and higher. Uncrosslinked polyolefin resin has poor temperature resistance, so wires and cables with slightly higher temperature resistance requirements need to use crosslinked polyolefin cable materials. [0003] At this stage, the main crosslinking methods are radiation crosslinking and silane crosslinking. These two cross-linking methods need to go through a process after the line is formed, which greatly reduces the work efficiency. Irradiation cross-linking needs to pass through an irradiation cross-linking accelerator after the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L51/06C08L23/06C08L47/00C08K13/02C08K5/375C08K3/22C08K5/103H01B3/44
CPCC08L23/0853C08L23/0815H01B3/441C08L2201/02C08L2201/22C08L2203/202C08L2312/06C08L2207/066C08L2205/025C08L2205/035C08K2201/014C08L2207/062C08K2003/2227C08K2003/2224C08L47/00C08L23/06C08K13/02C08K5/375C08K3/22C08K5/103C08L51/06
Inventor 翟银枫徐颍楠邵明元潘晓旻游泳祁建强
Owner WUXI JAKE PLASTIC
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