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Anti-tracking sheathing material for ADSS (all dielectric self-supporting) optical cables

A technology of electric tracking resistance and sheath material, which is applied in the direction of cables, circuits, electrical components, etc., to achieve the effect of improving electric tracking resistance and environmental stress cracking resistance, performance improvement, and excellent thermal deformation performance

Inactive Publication Date: 2015-02-18
SUZHOU HENGLI COMM MATERIAL
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AI Technical Summary

Benefits of technology

This patented technology relates to an improvement on how well known materials like plastic or rubber can be used when making optic cables that have antiradiance (AF). These improvements improve their ability to prevent damage caused during use without losing signal transmission capabilities over time.

Problems solved by technology

This patented technical solution involves developing an improved type called ADSF optic fiber cable with specific supporting system(s). By adding extra layers or components like metal foils instead of traditional insulating material, this design helps prevent electrical arcs from damaging sensitive equipment located near these cords during operation. Additionally, there may exist other types of protective coatings made up mostly of plastic, including HDPE resin coating, LLDP film, fluoropolymer films, etc., depending upon their properties and intended applications.

Method used

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  • Anti-tracking sheathing material for ADSS (all dielectric self-supporting) optical cables
  • Anti-tracking sheathing material for ADSS (all dielectric self-supporting) optical cables
  • Anti-tracking sheathing material for ADSS (all dielectric self-supporting) optical cables

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preparation example Construction

[0034] The preparation process of the present invention is as follows: add polyethylene base material, black masterbatch, polyethylene wax, PPA additives, and antioxidants in a certain proportion and mix them evenly, then pour them into a high-mixer, and then add magnesium hydroxide filler Stir with a high mixer and stop for about 5 minutes. Then use twin-screw extrusion granulation, preheat the twin-screw in advance, set the temperature from the first zone to the ninth zone to 170, 175, 180, 185, 190, 195, 195, 210, set the head temperature to 220, and set the pressure It is 0.25-0.3MPa, the feed is given at 20HZ, and the screw speed is set at 200r / min.

[0035] Table 1 shows the ingredients and test results of the tracking-resistant sheath material for ADSS optical cables described in Examples 1-5.

[0036] Table 1

[0037]

[0038]

[0039]

Embodiment 8

[0040] Simultaneously the present invention provides a kind of most preferred embodiment 8, and its formula is as follows:

[0041] Wherein said polyethylene base material comprises:

[0042] HDPE 6888 37 parts,

[0043] HDPE 3364 20 parts,

[0044] Linear low density polyethylene 218N 0 parts,

[0045] Linear low density polyethylene 7042 20 parts;

[0046] Black masterbatch 8000 1.35 parts;

[0047] Polyethylene wax 0-0.3 parts;

[0048] 0.08 part of PPA additive;

[0049] The antioxidants include:

[0050] Antioxidant 1010 0.05 part,

[0051] Antioxidant DLTP 0.04 parts;

[0052] Described magnesium hydroxide filler comprises:

[0053] 20 parts of the third magnesium hydroxide filler.

[0054] The performance test of the anti-tracking sheath material for ADSS optical cable obtained in Example 8 is shown in Table 2.

[0055] Table 2

[0056]

[0057] The present invention selects two kinds of high-density polyethylenes to be used in combination. The first reas...

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Abstract

The invention discloses an anti-tracking sheathing material for ADSS (all dielectric self-supporting) optical cables. The anti-tracking sheathing material comprises a polyethylene base stock, a black master batch, polyethylene wax, a PPA aid, an antioxidant and a magnesium hydroxide filling agent. By adjusting a formula and a process, the anti-tracking performance and the environmental stress cracking resistance are improved; the anti-tracking sheathing material has excellent anti-tracking performance, weather resistance, mechanical and physical performance, environmental stress cracking resistance, thermal deformation performance and surface machining performance and is suitable for the ADSS anti-tracking optical cables in high-voltage electric fields (the voltage is 110KV or higher) and severe environments. Compared with the general products, the anti-tracking sheathing material has the advantages that the performance such as the product surface, the density, the melt index, the tensile strength and the elongation at break are greatly improved.

Description

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Claims

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Application Information

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Owner SUZHOU HENGLI COMM MATERIAL
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