Scratch resistant environmental low-smoke halogen-free flame resistant sheath material for special optical cable

A flame retardant sheath and scratch-resistant technology, applied in the direction of fiber mechanical structure, etc., to achieve the effect of surface wear resistance, less combustion smoke and good appearance quality

Inactive Publication Date: 2010-05-05
SUZHOU HENGLI COMM MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the existing special optical cable sheathing materials, the present invention provides a scratch-resistant and environmentally friendly low-smoke, halogen-free, flame-retardant sheathing material for special optical cables.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1, make 100 kilograms of the present invention.

[0009] The formula of each component of the material is: ethylene-vinyl acetate copolymer 21 kg, polyethylene 8 kg, polyethylene elastomer 7 kg, aluminum hydroxide 55 kg, ethylene-vinyl acetate copolymer grafted maleic anhydride copolymer 7.5 Kg, 0.6 kg of vinyl-terminated linear reactive siloxane, 0.3 kg of zinc stearate, 0.4 kg of silicone, four [3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] 0.2 kg of pentaerythritol esters.

Embodiment 2

[0010] Embodiment 2, make 200 kilograms of the present invention.

[0011] The formula of each component of the material is: the formula of each component of the material is: 38 kg of ethylene-vinyl acetate copolymer, 13.2 kg of polyethylene, 11 kg of polyethylene elastomer, 120 kg of magnesium hydroxide, ethylene grafted maleic anhydride copolymer 14 kg, 2 kg of hydroxyl-terminated linear reactive siloxane, 0.8 kg of calcium stearate, 0.6 kg of silicone, 0.4 kg of 4,4'-thiobis(6-tert-butyl-3-methylphenol) .

Embodiment 3

[0012] Embodiment 3, make 300 kilograms of the present invention.

[0013] The formula of each component of the material is: ethylene-vinyl acetate copolymer 69 kg, polyethylene 12 kg, polyethylene elastomer 18 kg, zinc borate 171 kg, ethylene-vinyl acetate copolymer grafted maleic anhydride copolymer 22.8 kg , 4.5 kg of vinyl-terminated linear reactive siloxane, 0.6 kg of barium stearate, 1.5 kg of silicone, 0.3 kg of dilauryl thiodipropionate, (2,4-di-tert-butylphenyl) Phosphate triester 0.3 kg.

[0014] The following process steps are used to make the present invention: the raw materials required for the formula are in the order of ethylene-vinyl acetate copolymer→polyethylene→flame retardant→polyethylene elastomer→compatibilizer→wear agent→lubricant, antioxidant Put it into the kneader and knead for about 8-12 minutes. When the kneading temperature reaches 140°C, the material is sent to the twin-screw extruder for granulation by twin-screw. The granulation adopts the air-...

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PUM

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Abstract

The invention relates to a scratch resistant environmental low-smoke halogen-free flame resistant sheath material for a special optical cable. The sheath material comprises the following components by weight percent: 15-25% of ethylene-vinyl acetate copolymer, 5-10% of polyethylene, 5-10% of polyethylene elastomer, 45-60% of flame retardant, 5-10% of compatilizer, 0.5-2% of antiwear agent, 0.5-1.0% of lubricant and 0.1-0.5% of antioxidant. The material of the invention has no halogen, low pollution to the environment, good flame resistant performance, low smoke caused by burning and low irritation to human. The outer sheath of the cable prepared by the sheath material of the invention has excellent surface abrasion resistance and scratch resistant so that the surface of the outer sheath is not easy to scratch during construction and used processes and can maintain good appearance quality.

Description

technical field [0001] The invention relates to an optical cable sheath material, in particular to a scratch-resistant, environmentally friendly low-smoke, halogen-free, flame-retardant sheath material for special optical cables. Background technique [0002] The existing special optical cables used in 3G communication projects and fiber-to-the-home projects are mostly used in mobile communication base stations or indoors, and the materials used for the sheath of optical cables are required to be environmentally friendly, flame-retardant, low-smoke and non-toxic; For indoor use, the space is small, the movement is frequent, and it is easy to be scratched. It is required that the surface of the optical cable has good wear resistance and scratch resistance. Existing optical cable sheathing materials are difficult to meet these requirements. Contents of the invention [0003] In order to solve the problems existing in the existing special optical cable sheathing material, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
Inventor 程晓松
Owner SUZHOU HENGLI COMM MATERIAL
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