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High-strength flame-retardant anti-static pipeline

A flame-retardant, anti-static, high-strength technology, used in pipeline protection, pipeline damage/wear prevention, pipes, etc., can solve problems such as poor anti-static performance, affecting production, easy deformation, etc. Resistivity, Easy Crosslinking Compatible Effect

Inactive Publication Date: 2012-06-20
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the plastic pipes in the prior art have defects such as low strength, easy deformation, brittleness, and poor antistatic performance.
Moreover, frequent maintenance also affects normal production

Method used

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Experimental program
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Effect test

Embodiment 2

[0021] see figure 1 , The high-strength flame-retardant and antistatic pipe of the present invention is divided into three layers, the outer layer of plastic 3 , the bonding layer and the inner layer of plastic 1 . The bonding layer 2 is located between the outer plastic 3 and the inner plastic 1 .

[0022] Wherein the inner layer comprises the following components: 800 parts by weight of high-density polyethylene, 15 parts by weight of glass fiber, 2 parts by weight of wollastonite, 6 parts by weight of EPDM rubber, and 9 parts by weight of nitrile Glue, the styrene-butadiene-styrene terpolymer copolymer of 6 parts by weight, the carbon nanotube of 13 parts by weight, the polypropylene graft maleic anhydride of 30 parts by weight, the decabromobiphenyl of 25 parts by weight Ethane, the conductive carbon black of 19 parts by weight; The outer layer comprises the component of following ratio: the medium density polyethylene of 500 parts by weight, the decabromodiphenylethane o...

Embodiment 3

[0024] see figure 1 , The high-strength flame-retardant and antistatic pipe of the present invention is divided into three layers, the outer layer of plastic 3 , the bonding layer and the inner layer of plastic 1 . The bonding layer 2 is located between the outer plastic 3 and the inner plastic 1 .

[0025] Wherein the inner layer comprises components in the following proportions: 650 parts by weight of high-density polyethylene, 12 parts by weight of glass fiber, 2 parts by weight of wollastonite, 4 parts by weight of EPDM rubber, and 7 parts by weight of nitrile Glue, 5 parts by weight of styrene-butadiene-styrene terpolymer copolymer, 10 parts by weight of carbon nanotubes, 19 parts by weight of polypropylene grafted maleic anhydride, 19 parts by weight of decabromodiphenyl Ethane, the conductive carbon black of 16 parts by weight; The outer layer comprises the component of following ratio: the medium density polyethylene of 430 parts by weight, the decabromodiphenylethane...

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Abstract

The invention provides a high-strength flame-retardant anti-static pipeline comprising an inner layer, a combined layer and an outer layer, wherein the inner layer contains the following proportional components: 600 to 800 parts of high-density polyethylene by weight, 5 to 15 parts of glass fibre by weight, 1 to 2 parts of wollastonite by weight, 1 to 6 parts of ethylene-propylene diene copolymer by weight, 4 to 9 parts of butadiene-acrylonitrile rubber by weight, 3 to 6 parts of styrene-butadiene-styrene terpolymer copolymer by weight, 9 to 13 parts of nano carbon tube by weight, 10 to 30 parts of polypropylene grafted maleic anhydride by weight, 15 to 25 parts of flame retardant by weight and 13 to 19 parts of graphitized carbon black by weight; the outer layer contains the following proportional components: 300 to 500 parts of medium-density polyethylene by weight, 12 to 21 parts of flame retardant by weight and 9 to 13 parts of graphitized carbon black by weight; and the main component of the combined layer is hot melting glue. The pipeline provided by the invention has favorable performances of heat insulation and flame retardant; meanwhile, the pipeline also has higher toughness; and furthermore, the erosion resistance, the high-pressure resistance and the rigidity performance are high.

Description

technical field [0001] The invention relates to a high-strength flame-retardant and antistatic pipe, in particular to a flame-retardant and antistatic steel mesh skeleton polyethylene composite pipe. Background technique [0002] In the prior art, steel pipes and plastic pipes are commonly used underground in coal mines. Steel pipes are easy to rust, not resistant to corrosion, short in life, difficult to install, and difficult to guarantee the quality of welding, so they are gradually replaced by corrosion-resistant plastic pipes. Especially when plastic polyethylene pipe products are used underground in coal mines, metal mines or non-metal mines. Since the 1990s, the annual sales volume of plastic pipes has increased by about 23%. However, the vast majority of plastic products are combustible and difficult to extinguish. The accidents caused by the burning of plastic products have become a serious social problem. There are reports on casualties caused by plastic fires fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/12F16L57/04C08L23/06B32B1/08B32B27/18B32B27/32
Inventor 王笑
Owner ZHEJIANG NORMAL UNIVERSITY
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