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Light-heat aging resistant low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof

A polyolefin cable material and thermal aging technology, which is applied in the field of polymer material technology and science, can solve the problems of unsuitable long-term light and heat aging conditions of lamps, and achieves improvement of ultraviolet light aging resistance, heat aging resistance and fracture resistance. Effects of elongation and flexibility reduction

Inactive Publication Date: 2019-01-22
ANHUI HUALING CABLE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

UV-stabilized polyolefin mixture (patent application number CN 103627056A) uses hindered amine UV light stabilizer and untreated pyrogenic silica to solve the problem of UV resistance, but it is suitable for sunlight exposure in outdoor environments, not for long-term Light and heat aging conditions of lamps and lanterns

Method used

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  • Light-heat aging resistant low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof

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Embodiment Construction

[0016] Below in conjunction with embodiment the present invention is further described.

[0017] Raw material performance in the embodiment of the present invention:

[0018] Ethylene-vinyl acetate copolymer (EVA resin): MFR is 1 g / 10min under the test conditions of temperature 190 ℃ and load weight 2.16 Kg;

[0019] Ethylene acrylate: the number of methyl acrylate in the copolymer is 20 parts, and the MFR is 3 g / 10min under the test conditions of temperature 190 ℃ and load weight 2.16Kg;

[0020] Mg(OH) 2 : The particle size is 1.5 μm;

[0021] Al(OH) 3 : The particle size is 2.0 μm;

[0022] Zinc borate: particle size is 2.0 μm;

[0023] Microencapsulated red phosphorus: the particle size is 5-10 μm. Purple-red powder, relative density 2.1, bulk density 0.6g / cm3;

[0024] Ammonium polyphosphate: fineness (through 50μm sieve) / %≥ 90;

[0025] Hindered amine UV stabilizers: 1,6-hexanediamine, N,N'-bis(2,2,6,6-tetramethyl-4-piperidinyl)-polymer and 2,4,6- The reaction p...

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Abstract

The invention provides a light-heat aging resistant low-smoke halogen-free flame-retardant polyolefin cable material. Raw materials of the cable material comprise the following components (by weight):50-100 parts of an ethylene-vinyl acetate copolymer, 2-8 parts of acrylate rubber, 5-15 parts of ethylene propylene rubber, 2-20 parts of an elastomer, 100-120 parts of a flame retardant, 10-30 partsof an anti-smoke flame retardant, 0.1-2 parts of a compound antioxidant, 0.1-2 parts of a lubricant, 0.5-2 parts of a vulcanizing agent, 5-20 parts of a reinforcing agent, 1-5 parts of a crust forming agent, 1-5 parts of a hindered amine UV stabilizer, and 0.5-2 parts of untreated pyrogenic silica. The invention also discloses a preparation method of the cable material. The light-heat aging resistance of the cable material can be greatly improved.

Description

technical field [0001] The invention belongs to the field of polymer material technology and science, and relates to a wire and cable material and a preparation method thereof, in particular to a light-heat aging-resistant low-smoke halogen-free flame-retardant polyolefin cable material and a preparation method thereof. Background technique [0002] Some cables in the internal wiring of the EMU need to be laid in environments with long-term light and heat effects such as lamps and light sources. In these environments, ordinary polyolefin materials do not have the ability to withstand long-term photoaging due to their color. , Surface degradation, cracking and other phenomena will occur during long-term use, which will lead to cable breakdown or fire in severe cases, so its importance to the safe operation of trains is self-evident. Although most of the lighting systems in EMUs currently use LED lamps, their luminous efficiency is high and their heat generation efficiency is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L33/04C08L23/16C08K13/06C08K3/34C08K9/10C08K3/02C08K3/32C08K3/22C08K3/38H01B3/44
CPCC08K2003/026C08K2003/2224C08K2003/2227C08K2003/323C08K2003/387C08K2201/003C08L23/0853C08L2201/02C08L2201/08C08L2201/22C08L2203/202C08L2205/035H01B3/441C08L33/04C08L23/16C08K13/06C08K3/34C08K9/10C08K3/02C08K3/32C08K3/22C08K3/38
Inventor 陈龙叶斌聂祝婷徐艳红朱彤
Owner ANHUI HUALING CABLE GRP