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A high temperature resistant pvc-c bushing for buried high voltage power cables

A high-voltage power, PVC-C technology is applied in the field of high-temperature resistant PVC-C bushings for buried high-voltage power cables. Easy installation and transportation, good effect of high temperature resistance

Active Publication Date: 2017-12-15
ZHEJIANG BANGDE PIPE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional PVC-C sleeves can withstand higher temperatures and have better strength, but in some special environments, they still cannot meet their strength and high temperature resistance requirements
Conventional PVC-C casing also has good insulation, but when used for high-voltage power cables, in order to meet the insulation, the thickness has to be increased, which will increase the difficulty of installation and transportation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]A high-temperature-resistant PVC-C sleeve for buried high-voltage power cables is prepared by mixing the following raw material components in parts by weight: 100 parts of chlorinated polyethylene resin, 20 parts of PVC resin, 25 parts of light calcium powder, and 5 parts of high temperature reinforcement modifier, 6 parts of styrene-N-phenylmaleimide-maleic anhydride terpolymer, 3 parts of modified mica, 5 parts of glass fiber, calcium zinc stabilizer (calcium zinc composite Stabilizer, commercially available) 2 parts, dispersant (polyethylene wax) 0.5 part, lubricant (calcium stearate) 1 part, toughening agent (methacrylic acid-butadiene-styrene copolymer, MBS, commercial Sales) 1 part, ACR processing aid 1 part.

[0033] The glass fiber is used after modification treatment. The method of modification treatment is: immerse the glass fiber in a nitric acid solution with a mass concentration of 15%, ultrasonically treat it for 15 minutes, and then place the glass fiber a...

Embodiment 2

[0043] A high-temperature-resistant PVC-C sleeve for buried high-voltage power cables is prepared by mixing the following raw material components in parts by weight: 100 parts of chlorinated polyethylene resin, 30 parts of PVC resin, 35 parts of light calcium powder, and 8 parts of high temperature reinforcement modifier, 4 parts of styrene-N-phenylmaleimide-maleic anhydride terpolymer, 5 parts of modified mica, 3 parts of glass fiber, calcium zinc stabilizer (calcium zinc composite Stabilizer, commercially available) 3 parts, dispersant (polyethylene wax) 0.8 parts, lubricant (calcium stearate) 2 parts, toughening agent (methacrylic acid-butadiene-styrene copolymer, MBS, commercial Sales) 2 parts, ACR processing aid 1.5 parts.

[0044] The glass fiber is used after modification treatment. The method of modification treatment is: immerse the glass fiber in a nitric acid solution with a mass concentration of 20%, ultrasonically treat it for 10 minutes, and then place the glass ...

Embodiment 3

[0054] A high-temperature-resistant PVC-C sleeve for buried high-voltage power cables is prepared by mixing the following raw material components in parts by weight: 100 parts of chlorinated polyethylene resin, 25 parts of PVC resin, 30 parts of light calcium powder, and 6 parts of high temperature reinforcement modifier, 5 parts of styrene-N-phenylmaleimide-maleic anhydride terpolymer, 4 parts of modified mica, 4 parts of glass fiber, calcium zinc stabilizer (calcium zinc composite stabilizer, commercially available) 2.5 parts, dispersant (polyethylene wax) 0.6 parts, lubricant (calcium stearate) 1.5 parts, toughening agent (methacrylic acid-butadiene-styrene copolymer, MBS, commercial Sales) 1.5 parts, ACR processing aid 1.2 parts.

[0055] The glass fiber is used after modification treatment. The method of modification treatment is: immerse the glass fiber in a nitric acid solution with a mass concentration of 18%, ultrasonically treat it for 12min, and then place the glass...

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Abstract

The invention discloses a buried high temperature resistance PVC-C cannula used for a high voltage power cable, which comprises the following raw materials by weight part: 100 parts of chlorinated polyethylene resin, 20-30 parts of PVC resin, 25-35 parts of light calcium carbonate, 5-8 parts of high temperature resistance enhanced modifier, 4-6 parts of styrene-N-phenyl maleimide-maleic anhydride terpolymer, 3-5 parts of modified mica, 3-5 parts of glass fiber, 2-3 parts of calcium zinc stabilizing agent, 0.5-0.8 parts of dispersant, 1-2 parts of lubricant, 1-2 parts of flexibilizer and 1-1.5 parts of ACR processing aid. The buried high temperature resistance PVC-C cannula has advantages of excellent insulating property, high intensity and good high temperature resistance performance.

Description

technical field [0001] The invention relates to a PVC-C bushing, in particular to a high-temperature-resistant PVC-C bushing for buried high-voltage power cables. Background technique [0002] Cable protection sleeve is a new type of sleeve material popularized and used in electric power engineering. With the rapid development of power cable buried laying projects, higher requirements are put forward for cable casings. Cable protection casings are usually made of polyethylene PE materials, which are the most commonly used electrical insulation for protecting wires and cables. Tube. However, it is found that PE pipes are easily deformed by external forces, which affects the normal laying of cables in the later stage, and are not suitable for buried power cable sheathing pipes. [0003] PVC-C casing is mainly made of PVC-C resin, which is currently recognized as a green and environmentally friendly product. Its excellent physical and chemical properties are attracting more a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/24C08L27/06C08L35/06C08K13/06C08K9/04C08K9/06C08K9/02C08K7/24C08K3/34C08K7/14C08K3/28C08K3/26
CPCC08K2201/003C08K2201/011C08L27/24C08L2203/20C08L2205/02C08L2205/035C08L2205/06C08L27/06C08L35/06C08L23/06C08L51/04C08L33/04C08K13/06C08K9/04C08K9/06C08K9/02C08K7/24C08K3/34C08K7/14C08K5/098C08K2003/282C08K2003/265
Inventor 胡德林
Owner ZHEJIANG BANGDE PIPE IND