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A wear-resistant and impact-resistant porous cable protection pipe and its preparation method

A technology for protecting pipes and cables, which is applied in the field of wear-resistant and impact-resistant porous cable protection pipes and their preparation. It can solve the problems of limiting the use efficiency of cable pipes, PVC pipes are easy to freeze and crack, and lag behind, so as to improve the function and use Efficiency, high impact strength, and improved service life

Active Publication Date: 2016-01-27
SHANGHAI YUANZHOU PIPE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The polyvinyl chloride (PVC) pipes produced in the prior art are not resistant to low temperature and impact, and are easily worn by friction, and are generally rarely used in trenchless projects for water supply and drainage, especially in northern and plateau areas In cold areas, PVC pipes are easy to freeze and crack, and the application of PVC pipes is far behind PE and PP pipes, especially the current cable protection pipes are mostly single-hole pipes, which greatly limits the use efficiency of cable pipes

Method used

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  • A wear-resistant and impact-resistant porous cable protection pipe and its preparation method
  • A wear-resistant and impact-resistant porous cable protection pipe and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Get 100 parts of polyvinyl chloride resin; 5 parts of composite impact modifiers; 3 parts of molybdenum disulfide powder of 30 microns; 10 parts of alumina powder of 100 nanometers; 0.2 parts of aminosilane; 0.5 parts of antioxidant 1010; 0.5 parts of didecyl adipate; 0.5 parts of zinc stearate; 2 parts of color masterbatch according to the weight ratio, put the component raw materials into a high-speed mixer for blending, the speed is 500 rpm, and the stirring temperature is 50 ℃, stirred and mixed for 5 minutes, and then molded by a twin-screw extruder.

[0020] The composite impact modifier is a mixture of polyethylene and ethylene-octene copolymer with a molecular weight of 2 million to 8 million and a diameter of 1 to 10 microns in a weight ratio of 1:1, which is crushed after banburying at 150°C for 5 minutes made.

[0021] The barrel temperature of the extruder is 170°C in the first zone; 175°C in the second zone; 180°C in the third zone; 185°C in the fourth zon...

Embodiment 2

[0023] Get 100 parts of polyvinyl chloride resin; 3 parts of composite impact modifier; 2 parts of graphite powder of 20 microns; 10 parts of boron nitride powder of 100 nanometers; 0.3 parts of octylsilane; 0.5 parts of antioxidant 1010; 0.5 parts of didecyl adipate; 0.5 parts of zinc stearate; 3 parts of color masterbatch according to the proportion by weight. Put the component raw materials into a high-speed mixer for blending in turn, the speed is 500 rpm, and the stirring temperature is 50 ℃, stirred and mixed for 5 minutes, and then molded by a twin-screw extruder.

[0024] The composite impact modifier is obtained by mixing acrylonitrile-butadiene-styrene copolymer and ethylene-vinyl acetate copolymer at a weight ratio of 1:1, banburying at 150°C for 5 minutes, and then crushing. The technical parameters of the ethylene-vinyl acetate copolymer are melt index ≤ 5g / 10min, ASTMD-1238, 100°C, 1.2kg; VA content 50wt%, Mooney viscosity ML1+4, 27±4 at 100°C, Density 1.00g / cm ...

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Abstract

The invention discloses an abrasion-resistant anti-impact multi-hole cable protective pipe and a preparing method of the pipe. The pipe is characterized by comprising, by weight, 100 parts of PVC, 3-5 parts of anti-impact modifier, 0.5-3 parts of abrasion-resistant modifier, 10 parts of heat conductive modifier, 0.1-0.3 part of surfactant, 0.5 part of antioxidant 1010, 0.5 part of diisodecyl adipate, 0.5 part of zinc stearate and 2-5 parts of color masterbatch in a mixing mode, and the pipe is formed through extruding from an extruder. The pipe is composed of an outer pipe body, a middle pipe body and rib plates, wherein the rib plates are arranged on polygonal exterior angles of the middle pipe body and are fixedly connected with a center tube sleeved in the outer pipe body in a radial mode to form a multi-hole cable frame structure. Compared with the prior art, the abrasion-resistant anti-impact multi-hole cable protective pipe has the advantages of being good in low temperature resistance and toughness, high in impact resistance strength, good in friction resistance and thermal conductivity, resistant to aging, long in service life, particularly suitable for being used for trenchless pipe laying engineering, multipurpose, and capable of greatly improving functions and use efficiency of cable pipelines and reducing construction cost.

Description

technical field [0001] The invention relates to the technical field of non-metallic pipes, in particular to a wear-resistant and impact-resistant porous cable protection pipe used in non-excavation engineering and a preparation method thereof. Background technique [0002] At present, with the development of urban planning and construction and the cleanliness and beauty of the city, all overhead high-voltage wires and cables are required to be buried underground. , Bridges, airports and large buildings cannot dig open trenches casually. This requires that people have to adopt non-excavation technology in the construction process to transfer the cables and wires required for power and communication to the ground. Therefore, trenchless technology is becoming more and more popular because it does not affect the surrounding environment, and it is also the general trend of municipal construction. [0003] The polyvinyl chloride (PVC) pipes produced in the prior art are not resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G9/06C08L27/06C08K13/02C08K5/11C08K5/098
Inventor 周文忠周森洪汪根林祝正明
Owner SHANGHAI YUANZHOU PIPE
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