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Anti-tracking polyethylene sheathing material

A polyethylene sheath, electrical tracking resistance technology, applied in the direction of fiber mechanical structure, etc., can solve the problem of inability to meet the electrical tracking resistance and other issues

Inactive Publication Date: 2011-07-13
成都亨通光通信有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The optical cable sheathing materials currently developed and produced in China cannot meet the requirements of its electric tracking resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0013] ① Commercially purchased and weighed raw materials with the following weight (1c9) ratio

[0014] High-density polyethylene resin: 44.2% to 78.8%;

[0015] Low-density polyethylene resin: 9.2% to 35.3%;

[0016] Anti-tracking agent: 9.8% to 25.0%;

[0017] Antioxidant: 0.8%~0.9%;

[0018] Lubricant: 1.1% to 1.3%.

[0019] The anti-tracking agent is bismuth titanate, or zirconium oxide, or zinc oxide, or aluminum oxide, or magnesium oxide, or silicon micropowder, or mica.

[0020] The antioxidant is antioxidant 1010, and the lubricant is polyethylene wax.

[0021] ② Mix the above raw materials evenly, and use a twin-screw extruder to extrude the spare mixed material, and the screw speed is 240-280 rpm

[0022] ③Cut into pellets, the particle size is cut into 3mm round pellets,

[0023] 4. dry with drier, obtain 100K9 polyethylene sheath material for optical cable of the present invention. Also known as medium density polyethylene sheath material for optical cable....

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PUM

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Abstract

The invention relates to an anti-tracking polyethylene sheathing material which comprises a mixture of high-density polyethylene resin and low-density polyethylene resin, and an anti-tracking agent is filled in the blended and modified polyethylene resin. The anti-tracking polyethylene sheathing material has a favorable anti-tracking property and can eliminate the electrolytic corrosion phenomenon on the surface of an optical cable in a highfield and operate for a long time in a severe environment outdoors without faults.

Description

technical field [0001] The invention relates to an anti-tracking polyethylene sheath material for ADSS optical cables, in particular to a polyethylene sheath material for ADSS optical cables with excellent anti-electric tracking effect. Background technique [0002] At present, the sheathing materials for optical cables developed and produced in China are high-density polyethylene sheathing materials, medium-density polyethylene sheathing materials and low-density polyethylene sheathing materials. For example, the high-density polyethylene sheath material is made of high-density polyethylene as the base resin, plus modified resin and other additives through co-rotating twin-screw extrusion and granulation. High-density polyethylene sheathing material has excellent heat aging resistance, environmental stress cracking resistance, high tensile strength and elongation at break, suitable for cables and cable sheaths, and has sufficient protection for optical fibers . Processing...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/02G02B6/44
Inventor 孙义兴张腊生谭会良许建国廖郑洪李炳惠张华李涛陈曲谢河彬
Owner 成都亨通光通信有限公司
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