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PVC (Polyvinyl Chloride) power cable protective sleeve and preparation method thereof

A technology for power cables and sheath tubes, applied in the field of PVC power cable sheath tubes and its preparation, to achieve the effects of ensuring cross-linking effects, improving mechanical properties, and good toughness

Inactive Publication Date: 2018-03-09
YANCHENG RUITONG PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The sheath tube is a commonly used insulating protective sleeve for power cables. Most of the existing sheath tubes are made of polymer materials such as polyethylene, polypropylene, and polyvinyl chloride; to match the above requirements for cables, the sheath tube should also have Matching performance, but the performance of the current sheath still needs further improvement

Method used

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  • PVC (Polyvinyl Chloride) power cable protective sleeve and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of preparation method of PVC power cable sheath pipe, concrete steps are as follows:

[0038] (1) Evenly mix light calcium carbonate, silane coupling agent, coated red phosphorus masterbatch, ammonium polyphosphate and decabromodiphenyl ether to obtain the first material and set aside;

[0039] (2) Polyvinyl chloride (PVC), ethylene-vinyl acetate copolymer, styrene-butadiene block copolymer, thermoplastic polyester elastomer (TPEE) and polyarylether nitrile-polysiloxane block copolymerization Add the material into a high-speed mixer, stir at a low speed, add trioctyl trimellitate and di-sec-octyl phthalate, stir at a high speed, melt and blend at 70°C for 10 minutes, then add the first material obtained in step (1), and continue Stir at high speed to 90°C, and crosslink for 20 minutes at this temperature;

[0040] (3) Add alginate, lubricant and antistatic agent, and continue stirring at high speed for 10 minutes to obtain a mixture;

[0041] (4) adding the mix...

Embodiment 2

[0050] A kind of preparation method of PVC power cable sheath pipe, concrete steps are as follows:

[0051] (1) Evenly mix light calcium carbonate, silane coupling agent, coated red phosphorus masterbatch, ammonium polyphosphate and decabromodiphenyl ether to obtain the first material and set aside;

[0052] (2) Polyvinyl chloride (PVC), ethylene-vinyl acetate copolymer, styrene-butadiene block copolymer, thermoplastic polyester elastomer (TPEE) and polyarylether nitrile-polysiloxane block copolymerization Add the material into a high-speed mixer, stir at a low speed, add trioctyl trimellitate and di-sec-octyl phthalate, stir at a high speed, melt and blend at 75°C for 15 minutes, then add the first material obtained in step (1), and continue Stir at high speed to 95°C, and crosslink for 25 minutes at this temperature;

[0053] (3) Add alginate, lubricant and antistatic agent, and continue stirring at high speed for 12 minutes to obtain a mixture;

[0054] (4) adding the mix...

Embodiment 3

[0063] A kind of preparation method of PVC power cable sheath pipe, concrete steps are as follows:

[0064] (1) Evenly mix light calcium carbonate, silane coupling agent, coated red phosphorus masterbatch, ammonium polyphosphate and decabromodiphenyl ether to obtain the first material and set aside;

[0065] (2) Polyvinyl chloride (PVC), ethylene-vinyl acetate copolymer, styrene-butadiene block copolymer, thermoplastic polyester elastomer (TPEE) and polyarylether nitrile-polysiloxane block copolymerization Add the material into a high-speed mixer, stir at a low speed, add trioctyl trimellitate and di-sec-octyl phthalate, stir at a high speed, melt and blend at 70°C for 15 minutes, then add the first material obtained in step (1), and continue Stir at high speed to 90°C, and crosslink for 25 minutes at this temperature;

[0066] (3) Add alginate, lubricant and antistatic agent, and continue stirring at high speed for 10 minutes to obtain a mixture;

[0067] (4) adding the mix...

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Abstract

The invention provides a PVC power cable sheathing tube and a preparation method thereof. The present invention uses PVC as the main raw material, and through three steps of compound preparation, blending and extrusion, and forming and sizing, a PVC power cable sheath tube is made, which has higher strength and better toughness. And has good flame retardancy.

Description

technical field [0001] The invention relates to the technical field of power facilities, in particular to a PVC power cable sheath tube and a preparation method thereof. Background technique [0002] Power cables are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. They are cables used to transmit and distribute electrical energy; [0003] With the modern development of urban planning, it has almost become normal for cables to go into the ground. Usually, trenchless construction is used for construction, which has the advantages of no impact on traffic, little damage to stratum structure, and short construction period. However, trenchless construction methods There are also high requirements for cables, which need to have high strength and good toughness; of course, for power cables, their flame retardancy is a basic requirement ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/08C08L53/02C08L67/00C08L83/10C08L5/04C08K13/06C08K9/06C08K5/06C08K3/02C08K3/26C08K3/32C08K5/12C08K3/04H01B3/44
CPCC08L27/06C08K2003/026C08K2003/265C08K2003/323C08K2201/003C08K2201/011C08K2201/014C08K2201/017C08L2201/02C08L2203/18C08L2203/20C08L2205/035C08L2207/04H01B3/443C08L23/0853C08L53/02C08L67/00C08L83/10C08L5/04C08K13/06C08K9/06C08K5/06C08K3/02C08K3/26C08K3/32C08K5/12C08K3/04
Inventor 卞传华徐兵
Owner YANCHENG RUITONG PLASTIC CO LTD
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