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Thermoplastic low-smoke halogen-free high-temperature-resistant flame-retardant cable material and preparation method thereof

A flame-retardant cable material and thermoplastic technology, applied in the field of thermoplastic low-smoke, halogen-free, high-temperature flame-resistant cable material and its preparation, can solve the problems of poor compatibility, poor flame retardancy, poor toughness, etc., to reduce brittleness and improve compatibility The effect of improvement of properties and surface energy

Pending Publication Date: 2022-04-19
高邮市金国电缆材料厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the existing flame retardants are added to the base material, the compatibility is poor, the flame retardancy is poor at high temperature, and the base material is brittle and poor in toughness.

Method used

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  • Thermoplastic low-smoke halogen-free high-temperature-resistant flame-retardant cable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, thermoplastic low-smoke, halogen-free, high-temperature flame-retardant cable material, which is composed of the following proportions by mass: 80 parts of polypropylene, 20 parts of ethylene-propylene random copolymer, 5 parts of halogen-free flame-retardant masterbatch 5 parts, 5 parts of expanded graphite, 5 parts of compatibilizer, 0.1 part of high-efficiency high temperature resistant antioxidant heat stabilizer, 2 parts of lubricant.

[0022] The mass content of ethylene in the ethylene-propylene random copolymer is 30%; the halogen-free flame-retardant masterbatch is YS-Z270 PP halogen-free flame-retardant masterbatch; the initial expansion temperature of expanded graphite is 290-300°C, and the expansion volume ≥230ml / g; compatibilizer is maleic anhydride grafted polypropylene; high-efficiency high temperature resistant antioxidant heat stabilizer is tetrakis(2,4-di-tert-butylphenyl-4,4'biphenyl)bisphenylene Phosphonate; lubricant is a mixture of eq...

Embodiment 2

[0028] Example 2, thermoplastic low-smoke, halogen-free, high-temperature flame-retardant cable material, which is composed of the following proportions by mass: 70 parts of polypropylene, 30 parts of ethylene-propylene random copolymer, 10 parts of halogen-free flame-retardant masterbatch parts, 9 parts of expanded graphite, 9 parts of compatibilizer, 0.4 parts of high-efficiency high temperature resistant antioxidant heat stabilizer, and 4 parts of lubricant.

[0029] The mass content of ethylene in the ethylene-propylene random copolymer is 40%; the halogen-free flame-retardant masterbatch is YS-Z270 PP halogen-free flame-retardant masterbatch; the initial expansion temperature of expanded graphite is 290-300°C, and the expansion volume ≥230ml / g; compatibilizer is maleic anhydride grafted polypropylene; high-efficiency high temperature resistant antioxidant heat stabilizer is tetrakis(2,4-di-tert-butylphenyl-4,4'biphenyl)bisphenylene Phosphonate; lubricant is a mixture of e...

Embodiment 3

[0031] Example 3: Thermoplastic low-smoke, halogen-free, high-temperature, flame-retardant cable material, which is composed of the following proportions by mass: 75 parts of polypropylene, 25 parts of ethylene-propylene random copolymer, 7 parts of halogen-free flame-retardant masterbatch 7 parts, 7 parts of expanded graphite, 7 parts of compatibilizer, 0.3 parts of high-efficiency high temperature resistant antioxidant heat stabilizer, 3 parts of lubricant.

[0032] The mass content of ethylene in the ethylene-propylene random copolymer is 36%; the halogen-free flame-retardant masterbatch is YS-Z270 PP halogen-free flame-retardant masterbatch; the initial expansion temperature of expanded graphite is 290-300°C, and the expansion volume ≥230ml / g; compatibilizer is maleic anhydride grafted polypropylene; high-efficiency high temperature resistant antioxidant heat stabilizer is tetrakis(2,4-di-tert-butylphenyl-4,4'biphenyl)bisphenylene Phosphonate; lubricant is a mixture of equ...

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Abstract

The invention relates to a thermoplastic low-smoke halogen-free high-temperature-resistant flame-retardant cable material which is prepared from the following components in parts by mass: 100 parts of polyolefin resin, 5-10 parts of halogen-free flame-retardant master batch, 5-9 parts of expanded graphite, 5-9 parts of compatilizer, 0.1-0.4 part of efficient high-temperature-resistant antioxidant heat stabilizer and 2-4 parts of lubricant. The halogen-free flame-retardant master batch is used as a flame retardant, so that the halogen-free flame-retardant master batch can be conveniently compatible with polyolefin resin, and is high in heat resistance and good in migration resistance and precipitation resistance; the expanded graphite is added, the compatilizer is used as an auxiliary agent for compatibility of the expanded graphite and the polyolefin resin, the compatibility of the expanded graphite and the polyolefin resin is improved, and the expanded graphite is changed into a worm shape under a high-temperature condition, so that the structure is loose, porous and bent, the surface area is enlarged, the surface energy is improved, and the effects of heat insulation and heat absorption are achieved; the polyolefin resin containing the ethylene-propylene random copolymer is used, and the lubricant is added, so that the brittleness of the cable material is reduced, and the toughness of the cable material is improved.

Description

technical field [0001] The invention relates to the field of cable materials, in particular to a thermoplastic low-smoke, halogen-free, high-temperature, flame-resistant cable material and a preparation method thereof. Background technique [0002] Cable is already an indispensable product in today's social life. Whether it is a power cable or a communication cable, it is inseparable from the work and life of ordinary people. However, with the continuous progress of society, the requirements for the material of cables are getting higher and higher. The external material of the cable is not only good in thermoplasticity, but also high temperature resistant, flame retardant, low smoke and no halogen gas generated when burning. However, when the existing flame retardant is added to the base material, the compatibility is poor, the flame retardancy is poor in high temperature environment, and the base material is relatively brittle and has poor toughness. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08L51/06C08L33/00C08K7/24C08K5/098
CPCC08L23/12C08L2201/02C08L2201/08C08L23/08C08L51/06C08L33/00C08K7/24C08K5/098
Inventor 徐金椿
Owner 高邮市金国电缆材料厂有限公司