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Halogen-free flame-retardant polypropylene composite cable material and preparation method thereof

A technology of flame retardant polypropylene and composite cable material, applied in the field of modified polypropylene, can solve the problem of insignificant flame retardant effect, achieve good mechanical properties, excellent flame retardant performance, and improve the effect of limiting anaerobic index

Active Publication Date: 2014-02-05
IND RES INST ZHIJIANG COLLEGE OF ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned technical problems of the prior art, the object of the present invention is to provide a kind of halogen-free flame-retardant polypropylene composite cable material and its preparation method, to develop a new type of flame-retardant excellent and environment-friendly polypropylene composite cable material, to overcome It solves the problem that the flame retardant effect of the existing single halogen-free flame retardant is not obvious, and meets the needs of industrial production and life

Method used

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  • Halogen-free flame-retardant polypropylene composite cable material and preparation method thereof
  • Halogen-free flame-retardant polypropylene composite cable material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0025] Accurately weigh 100 parts by weight of polypropylene powder, 5 parts by weight of hexaphenylaminocyclotriphosphazene, 50 parts by weight of magnesium hydroxide, 10 parts by weight of ethylene-vinyl acetate copolymer, 20 parts by weight of maleic anhydride grafted polypropylene, 0.2 parts by weight of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester was stirred in a high-speed mixer for 5 minutes, and mixed uniformly to obtain a premix. The premix is ​​melt-extruded on a twin-screw extruder, water-cooled, pelletized, and dried. The rotation speed of the screw machine was 300 rpm, and the temperature was 185° C. to obtain halogen-free flame-retardant polypropylene pellets.

Embodiment 2

[0027] Accurately weigh 100 parts by weight of polypropylene powder, 10 parts by weight of hexaphenylaminocyclotriphosphazene, 50 parts by weight of magnesium hydroxide, 10 parts by weight of EPDM, 20 parts by weight of maleic anhydride grafted polypropylene, double 0.2 parts by weight of (2.4-di-tert-butylphenyl) pentaerythritol bis-diphosphite was stirred in a high-speed mixer for 5 minutes, and mixed uniformly to obtain a premix. The premix is ​​melt-extruded on a twin-screw extruder, water-cooled, pelletized, and dried. The rotation speed of the screw machine was 300 rpm, and the temperature was 185° C. to obtain halogen-free flame-retardant polypropylene pellets.

Embodiment 3

[0029] Accurately weigh 100 parts by weight of polypropylene powder, 4 parts by weight of hexaphenylaminocyclotriphosphazene, 50 parts by weight of magnesium hydroxide, 10 parts by weight of methyl methacrylate-butadiene-styrene copolymer, maleic anhydride 20 parts by weight of grafted polypropylene, 0.2 parts by weight of tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester were stirred in a high-speed mixer for 5 minutes, and mixed uniformly to obtain the mixture. The premix is ​​melt-extruded on a twin-screw extruder, water-cooled, pelletized, and dried. The rotation speed of the screw machine was 300 rpm, and the temperature was 185° C. to obtain halogen-free flame-retardant polypropylene pellets.

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Abstract

The invention relates to a halogen-free flame-retardant polypropylene composite cable material and a preparation method thereof. The cable material is prepared from the following raw materials in 100 parts of polypropylene by weight: 1-10 parts of hexa-aniline cyclotriphosphazene, 10-100 parts of magnesium hydroxide, 5-20 parts of elastomer, 5-30 parts of compatilizer, and 0.1-1 part of antioxidant. By adopting the halogen-free flame-retardant, the potential hazard of a traditional flame-retardant polypropylene cable material to the environment and human bodies can be solved, the halogen-free flame-retardant polypropylene composite cable material is excellent in flame retardant performance and excellent in mechanical performance; the method for preparing the halogen-free flame-retardant polypropylene composite cable material does not produce toxic or corrosive gases in the preparation process, and accords with the environment-friendly requirement.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant polypropylene composite cable material and a preparation method thereof, which has high-efficiency flame-retardant performance and belongs to the technical field of modified polypropylene. Background technique [0002] Polypropylene (PP) is a semi-crystalline thermoplastic with high impact resistance, strong mechanical properties, and resistance to various organic solvents and acid and alkali corrosion. It is widely used in wire and cable, building materials, automobile industry, household Electrical appliances, packaging materials, etc. However, polypropylene has poor flame retardancy and is easy to burn. Its limiting oxygen index (LOI) is 18.5. field applications. Improving the flame retardancy of PP by adding flame retardants is one of the effective ways to expand its application range, and most of the products sold on the market are polypropylene cable materials modified by adding flame reta...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K5/5399C08K3/22H01B3/44H01B7/295
CPCC08K2201/003C08L23/12C08L2201/02C08L2201/22C08L2203/202C08L2205/03H01B3/441C08L23/0853C08L51/06C08K5/5399C08K2003/2224
Inventor 赵正平朱谚谚杜敬辉
Owner IND RES INST ZHIJIANG COLLEGE OF ZHEJIANG UNIV OF TECH
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