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Cable filler

A cable filling and plastic technology, applied in the field of cables, can solve problems such as unsatisfactory performance, achieve good workmanship, good surface sealing, and reduce environmental pollution.

Inactive Publication Date: 2018-06-26
QINGDAO XIANGZHI ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to their material, formula or shape, these kinds of filling strips are not satisfactory, and there are always more or less defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A cable filler, characterized in that: by weight, it comprises the following components:

[0033] A) Low-density polyethylene plastic 20%;

[0034] B) High-density polyethylene plastic 50%;

[0035] C) polypropylene plastic 28.76%;

[0036] D) graphite 0.2%;

[0037] E) whipping agent 0.04%;

[0038] F) Flame retardant 1%.

[0039] The blowing agent is azodicarbonamide.

[0040] The flame retardant is a nitrogen-phosphorus intumescent flame retardant.

[0041] The method for preparing the above-mentioned cable filling strip adopts the following steps:

[0042] A) each component of raw material is mixed evenly according to proportioning, puts into extruder hopper;

[0043] B) The raw material generates a molten mixture through an extruder;

[0044] C) filling gas into the molten mixture;

[0045] D) the mixture obtained in step C) is shaped through the outer mold provided at the outlet of the extruder to obtain a cable filling strip;

[0046] E) Pass the cable ...

Embodiment 2

[0052] A cable filler, characterized in that: by weight, it comprises the following components:

[0053] A) Low-density polyethylene plastic 40%;

[0054] B) High-density polyethylene plastic 30%;

[0055] C) polypropylene plastic 27.76%;

[0056] D) graphite 0.2%;

[0057] E) whipping agent 0.04%;

[0058] F) Flame retardant 2%.

[0059] The blowing agent is azodicarbonamide.

[0060] The flame retardant is a nitrogen-phosphorus intumescent flame retardant.

[0061] The method for preparing the above-mentioned cable filling strip adopts the following steps:

[0062] A) each component of raw material is mixed evenly according to proportioning, puts into extruder hopper;

[0063] B) The raw material generates a molten mixture through an extruder;

[0064] C) charge gas into the mixture in molten state;

[0065] D) the mixture obtained in step C) is shaped through the outer mold provided at the outlet of the extruder to obtain a cable filling strip;

[0066] E) Pass th...

Embodiment 3

[0072] A cable filler, characterized in that: by weight, it comprises the following components:

[0073] A) Low-density polyethylene plastic 30%;

[0074] B) High-density polyethylene plastic 40%;

[0075] C) polypropylene plastic 27.76%;

[0076] D) graphite 0.2%;

[0077] E) whipping agent 0.04%;

[0078] F) Flame retardant 2%.

[0079] The blowing agent is azodicarbonamide.

[0080] The flame retardant is nitrogen phosphorus intumescent flame retardant.

[0081] The method for preparing the above-mentioned cable filling strip adopts the following steps:

[0082] A) each component of raw material is mixed evenly according to proportioning, puts into extruder hopper;

[0083] B) The raw material generates a molten mixture through an extruder;

[0084] C) charge gas into the mixture in molten state;

[0085] D) the mixture obtained in step C) is shaped through the outer mold provided at the outlet of the extruder to obtain a cable filling strip;

[0086] E) Pass the ca...

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Abstract

The invention discloses a cable filler, and belongs to a filler in a cable. The filler includes the following components: low-density polyethylene plastic; high-density polyethylene plastic; polypropylene plastic; graphite; a foaming agent; and a flame retardant. The filler prepared by the invention has stable molding, can fully fill cable gaps, and ensures the roundness of the cable when the cable is formed; and the filler has the advantages of having high mechanical strength, good surface sealing performance, water resistance, moisture resistance, a low density, and good flame retardance, and being not easy to break, economic and applicable.

Description

technical field [0001] The invention relates to the field of cables, in particular to a filler in cables. Background technique [0002] There are three main types of traditional medium-voltage cable filling strips currently on the market: fan-shaped filling strips extruded from cross-linked polyethylene waste; polypropylene (PP) grid filling ropes; polyvinyl chloride or rubber tube filling strips. Due to their material, formula or shape, these kinds of filling strips do not perform satisfactorily and always have more or less defects. Contents of the invention [0003] In order to solve the above problems, the present invention provides a stable shape, which can fully fill the cable space and ensure the round appearance of the cable when it is cabled; it also has high mechanical strength, good surface sealing, waterproof, not easy to break, low density, A cable filler with light weight and good flame retardant properties. [0004] For realizing the above object, the schem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L23/12C08K3/04C08J9/10
CPCC08L23/06C08J9/103C08J2203/04C08J2323/06C08J2323/08C08J2423/06C08J2423/08C08J2423/12C08L23/0815C08L2201/02C08L2203/14C08L2203/20C08L2205/03C08L2207/062C08L2207/066C08L2207/20C08L23/12C08K3/04
Inventor 不公告发明人
Owner QINGDAO XIANGZHI ELECTRONICS TECH CO LTD
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