Soft low density halogen free low-smoke flame retardation polyolefin cable material and preparation method thereof

A polyolefin cable material, low-smoke and flame-retardant technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of cable rodent prevention, mouse damage, and affecting the mechanical properties of materials, so as to achieve superior flame-retardant performance and prevent bites damage, good processing performance

Inactive Publication Date: 2013-08-21
扬州市交大工业技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the rat's teeth are very sharp, and some teeth are longer than the thickness of the rubber and plastic protective layer of ordinary cables, so it is very difficult to prevent rats from cables
Halogen-free flame-retardant polyolefin cable materials achieve high flame-retardant properties by adding inorganic flame retardants, but adding flame retardants will affect the mechanical properties of the material itself, so it is more vulnerable to damage from mice

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation of modified capsaicin:

[0025] Stir and mix 0.1 kg of capsaicin and 1 liter of acrylate for 1 hour, and filter to obtain modified capsaicin.

Embodiment 2

[0027] Preparation of modified capsaicin:

[0028] Stir and mix 1 kg of capsaicin with 1 liter of acrylate for 3 hours, and filter to obtain modified capsaicin.

[0029] In example 1 and example 2, the surface treatment of matrix resin, inorganic flame retardant and the preparation method of cable material all adopt the following scheme:

[0030] Add ethylene-vinyl acetate copolymer and linear low-density polyethylene to a single-screw extruder in a ratio of 90:10 by mass to blend and pelletize as a matrix resin;

[0031] Other components: 95 parts of inorganic flame retardant, 15 parts of synergist, 15 parts of polymer compatibilizer, 1 part of antioxidant, 1 part of modified capsaicin, 2 parts of processing aid.

[0032] The inorganic flame retardant is magnesium hydroxide, the polymer compatibilizer is maleic anhydride grafted ethylene-vinyl acetate; the synergist composition (mass percentage) is: 20% silicone rubber, ethylene-vinyl acetate copolymer (of which The mass pe...

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PUM

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Abstract

The invention relates to a soft low density halogen free low-smoke flame retardation polyolefin cable material and preparation method thereof, and the material comprises the following components: 80-90 parts by weight of ethane-vinyl acetate copolymer, 10-20 parts by weight of linear low density polyethylene, 65-130 parts by weight of inorganic fire retardant after surface treatment, 10-30 parts by weight of synergist, 10-20 parts by weight of high-molecular compatilizer, 0.9-1.5 parts by weight of anti-oxidant, 0.5-4 parts by weight of modified capsaicin, and 1-2 parts by weight of processing auxiliary agent. The invention has the advantages of superior flame retardation performance, excellent toughness and bendability resistance; low-density, low-smoke, low-corrosion, low-toxicity and environment friendly; good processing property and brightened surface of extrudate.

Description

technical field [0001] The invention relates to a cable material, in particular to a soft, low-density, halogen-free, low-smoke, flame-retardant polyolefin cable material and a preparation method thereof. Background technique [0002] With the development of modern industrialization, the increasing demand for electric energy and the increasing dependence on information are the mainstream development trends, and the security of power grids and information networks is also receiving more and more attention. However, cables as transmission carriers of power grids and information networks are vulnerable to various natural factors. How to prevent wires and cables from being damaged has become one of the important research directions in the industry. [0003] Among the various natural factors that destroy wires and cables, rodent infestation is the most important factor. Because the mouse teeth are very sharp, and some teeth are longer than the thickness of the rubber and plasti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L83/04C08L51/00C08L51/06C08K13/06C08K9/10C08K9/06C08K9/04C08K3/22C08K3/26H01B3/44H01B7/295H01B7/17
Inventor 吴刚李秀峰卜凡勇董天乐
Owner 扬州市交大工业技术研究院有限公司
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