Low-smoke halogen-free flame-retarding polypropylene cable material and preparation method thereof

A flame retardant polypropylene and cable material technology, applied in the field of cable materials, can solve the problems of reducing the temperature resistance level of the material, reducing the mechanical properties of the material, the stress cracking resistance of the processing performance, etc., and achieving reduced corrosion, good appearance, and rheological properties. Good results

Inactive Publication Date: 2013-08-21
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] To develop a halogen-free flame-retardant cable material that meets the requirements, it is necessary to add a large amount of inorganic flame retardants to the matrix resin of the cable material, and the addition of a large amount of inorganic flame retardants is bound to greatly reduce the mechanical properties, processing properties and durability of the material. Stress cracking resistance, at the same time, it will also reduce the temperature resistance level of the material

Method used

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  • Low-smoke halogen-free flame-retarding polypropylene cable material and preparation method thereof
  • Low-smoke halogen-free flame-retarding polypropylene cable material and preparation method thereof
  • Low-smoke halogen-free flame-retarding polypropylene cable material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0023] A low-smoke halogen-free flame-retardant polypropylene cable material, which is composed of polypropylene, styrene-ethylene-butadiene-styrene block copolymer, polypropylene grafted maleic anhydride copolymer, magnesium hydroxide flame retardant , red phosphorus (flame retardant synergist), polyacrylonitrile powder (flame retardant synergist), antioxidant A and antioxidant B raw materials are prepared, and the parts by weight of each raw material are:

[0024]

[0025]

[0026] Described magnesium hydroxide flame retardant is stearic acid modified magnesium hydroxide flame retardant (ie stearic acid modified magnesium hydroxide flame retardant, is existing product).

[0027] The antioxidant A is selected from tris[2.4-di-tert-butylphenyl]phosphite.

[0028] The antioxidant B is selected from tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythyl ester.

[0029] The red phosphorus is red phosphorus with a particle diameter of 5-10 um microencapsulate...

Embodiment 2

[0038] A low-smoke halogen-free flame-retardant polypropylene cable material, which is composed of polypropylene, styrene-ethylene-butadiene-styrene block copolymer, polypropylene grafted maleic anhydride copolymer, magnesium hydroxide flame retardant , red phosphorus (flame retardant synergist), polyacrylonitrile powder (flame retardant synergist), antioxidant A and antioxidant B raw materials are prepared, and the parts by weight of each raw material are:

[0039]

[0040]

[0041] Described magnesium hydroxide flame retardant is stearic acid modified magnesium hydroxide flame retardant (ie stearic acid modified magnesium hydroxide flame retardant, is existing product).

[0042] The antioxidant A is selected from bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphate.

[0043] The antioxidant B is selected from stearyl β(3,5-di-tert-butyl-4-hydroxyphenyl)propionate.

[0044] The red phosphorus is red phosphorus with a particle diameter of 5-10 um microencapsulated b...

Embodiment 3

[0053]A low-smoke halogen-free flame-retardant polypropylene cable material, which is composed of polypropylene, styrene-ethylene-butadiene-styrene block copolymer, polypropylene grafted maleic anhydride copolymer, magnesium hydroxide flame retardant , red phosphorus (flame retardant synergist), polyacrylonitrile powder (flame retardant synergist), antioxidant A and antioxidant B raw materials are prepared, and the parts by weight of each raw material are:

[0054]

[0055] Described magnesium hydroxide flame retardant is stearic acid modified magnesium hydroxide flame retardant (ie stearic acid modified magnesium hydroxide flame retardant, is existing product).

[0056] The antioxidant A is selected from tris[2.4-di-tert-butylphenyl]phosphite.

[0057] The antioxidant B is selected from tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythyl ester.

[0058] The red phosphorus is red phosphorus with a particle diameter of 5-10 um microencapsulated by melamine...

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Abstract

The invention belongs to the field of cable materials, in particular to a low-smoke halogen-free flame-retarding polypropylene cable material and a preparation method thereof. The low-smoke halogen-free flame-retarding polypropylene cable material is characterized by being prepared from the following raw materials in part by weight: 65 to 75 parts of polypropylene, 12 to 18 parts of styrene-ethylene / butadiene-styrene block copolymer, 6 to 8 parts of polypropylene grafted maleic anhydride copolymer, 130 to 150 parts of magnesium hydroxide fire retardant, 5 to 7 parts of red phosphorus, 3 to 5 parts of polyacrylonitrile powder, 1 to 2.5 parts of antioxygen A and 1 to 2.5 parts of antioxygen B. The low-smoke halogen-free flame-retarding polypropylene cable material obtained by the method hasthe characteristics of high machining performance, high temperature resistance and high stress cracking resistance.

Description

technical field [0001] The invention belongs to the field of cable materials, in particular to a low-smoke halogen-free flame-retardant polypropylene cable material and a preparation method thereof. Background technique [0002] Halogen-containing flame-retardant wires and cables emit a large amount of smoke and hydrogen halide gas during combustion, which can easily cause people to suffocate and cause severe corrosion to equipment. Therefore, the development and use of low-smoke halogen-free flame-retardant cable materials has become the development direction of the cable field at home and abroad. Therefore, how to design halogen-free flame-retardant wire and cable products that meet low smoke, low toxicity, and low corrosion has become an urgent task for the whole society. [0003] To develop a halogen-free flame-retardant cable material that meets the requirements, it is necessary to add a large amount of inorganic flame retardants to the matrix resin of the cable materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L55/02C08L51/06C08L33/20C08K13/06C08K3/22C08K3/02B29C47/92B29C48/92
CPCB29C48/40
Inventor 黄年华陈志军李思文
Owner WUHAN TEXTILE UNIV
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