Sun-proof composite modified polypropylene pipe for power cable protection

A polypropylene pipe, composite modification technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of poor vertical rigidity and toughness of polypropylene, affecting the service life of pipes, and long placement time of pipes, etc., to improve the light resistance performance. , the effect of improving market competitiveness and improving impact energy

Inactive Publication Date: 2013-04-03
ZHEJIANG HUAFENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the high vertical stiffness of polypropylene but poor toughness, especially in low temperature environment, brittle failure is easy to occur, which seriously affects the service life of the pipe.
At the same time, due to the long construction period of the current excavation power project, especially in the south, the pipes are placed on the construction site for a long time and the light intensity is high, which will easily lead to the aging of the pipes, such as lightening of the color and deterioration of the material.

Method used

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  • Sun-proof composite modified polypropylene pipe for power cable protection

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A light-resistant composite modified polypropylene pipe material for power cable protection, comprising the following components by weight percentage:

[0031] PP 78%

[0032] POE 10%

[0033] Nano calcium carbonate 4.8%

[0034] Nucleating agent 0.3%

[0035] Coupling agent 0.2%

[0036] Sun-resistant and lubricating composite functional masterbatch 0.5%

[0037] In terms of weight percentage, it also contains 3.8% metal wire and 3.3% modified capsaicin, and the modified capsaicin is a kind of capsaicin wrapped with organic substances.

[0038] The sun-resistant and lubricating composite functional masterbatch includes a light stabilizer, a composite heat stabilizer, a free radical quenching agent, and a dispersant.

[0039] The selected nucleating agent model is XL-NA2002; the coupling agent is γ-(methacryloyloxy)propyltrimethoxysilane; the POE model is 8198, produced by DOW Company of the United States; the PP model is PP1300, Yanshan Petrochemical Production. ...

Embodiment 2

[0044] A light-resistant composite modified polypropylene pipe material for power cable protection, comprising the following components by weight percentage:

[0045] PP 73%

[0046] POE 15%

[0047] Nano calcium carbonate 5.2%

[0048] Nucleating agent 0.4%

[0049] Coupling agent 0.25%

[0050] Light-resistant and lubricating composite functional masterbatch 1%

[0051] In terms of weight percentage, it also contains 3% metal wire and 3% modified capsaicin, which is a kind of capsaicin wrapped with organic substances.

[0052] The sun-resistant and lubricating composite functional masterbatch includes a light stabilizer, a composite heat stabilizer, a free radical quenching agent, and a dispersant.

[0053] The selected nucleating agent model is ZC-3; the coupling agent is vinyl tris (b-methoxyethoxy) silane; the POE model is 8198, produced by DOW Company of the United States; the PP model is PP1300, produced by Yanshan Petrochemical .

[0054] The preparation method ...

Embodiment 3

[0058] A light-resistant composite modified polypropylene pipe material for power cable protection, comprising the following components by weight percentage:

[0059] PP 75.6%

[0060] POE 12%

[0061] Nano calcium carbonate 5%

[0062] Nucleating agent 0.35%

[0063] Coupling agent 0.22%

[0064] Sun-resistant and lubricating composite functional masterbatch 0.8%

[0065] In terms of weight percentage, it also contains 3% metal wire and 3% modified capsaicin, which is a kind of capsaicin wrapped with organic substances.

[0066] The sun-resistant and lubricating composite functional masterbatch includes a light stabilizer, a composite heat stabilizer, a free radical quenching agent, and a dispersant.

[0067] The selected nucleating agent model is CaV102; the coupling agent is γ-aminopropyltriethoxysilane; the POE model is 8198, produced by DOW Company of the United States; the PP model is PP1300, produced by Yanshan Petrochemical.

[0068] The preparation method of the...

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Abstract

The invention relates to a sun-proof composite modified polypropylene pipe for power cable protection. The pipe comprises the following components in percentage by weight: 73 to 78 percent of PP (Propene Polymer), 10 to 15 percent of POE (Polyolefin Elastomer), 4.8 to 5.2 percent of nano calcium carbonate, 0.3 to 0.4 percent of nucleating agent, 0.2 to 0.25 percent of coupling agent and 0.5 to 1 percent of sun-proof lubricating composite functional master batch. Not only does the pipe have better low-temperature impact resistance, wherein impact energy in a falling weight impact test at a temperature of minus 5 DEG C is improved by over 2.5 times, the friction coefficient is reduced by 40 percent and the Vicat heat-resistance temperature is risen by 5 DEG C, but also sun-proof performance of the pipe is improved and the application range of the power pipe is enlarged.

Description

technical field [0001] The invention relates to the field of pipes, in particular to a light-resistant composite modified polypropylene pipe for power cable protection. Background technique [0002] At present, the raw materials used for pipes on the market are mainly concentrated in polyvinyl chloride and high-density polyethylene. With the improvement of environmental protection awareness, polyvinyl chloride has gradually withdrawn from the market. Compared with polyethylene, polypropylene has a higher elastic modulus and lower density, and its cost performance is relatively high. [0003] However, due to the high vertical stiffness of polypropylene but poor toughness, especially in low temperature environment, brittle failure is easy to occur, which seriously affects the service life of the pipe. At the same time, due to the long construction period of the current excavation power projects, especially in the south, the pipes are placed on the construction site for a long...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08K13/06C08K3/26C08K3/08C08K5/20H01B7/17
Inventor 傅依淼陈敏鲍岳祥邵俊杰周志鹏金建明
Owner ZHEJIANG HUAFENG NEW MATERIAL
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