CN101967246A - Modified polypropylene pipe used for protecting high-voltage power cable - Google Patents
Modified polypropylene pipe used for protecting high-voltage power cable Download PDFInfo
- Publication number
- CN101967246A CN101967246A CN2010105133092A CN201010513309A CN101967246A CN 101967246 A CN101967246 A CN 101967246A CN 2010105133092 A CN2010105133092 A CN 2010105133092A CN 201010513309 A CN201010513309 A CN 201010513309A CN 101967246 A CN101967246 A CN 101967246A
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- mpp
- power cable
- modified polypropylene
- voltage power
- resin
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 38
- -1 polypropylene Polymers 0.000 title claims abstract description 22
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 229920000573 polyethylene Polymers 0.000 claims abstract description 4
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 9
- 238000003466 welding Methods 0.000 abstract description 4
- 239000004594 Masterbatch (MB) Substances 0.000 abstract 3
- 239000004698 Polyethylene Substances 0.000 abstract 3
- 239000000654 additive Substances 0.000 abstract 3
- 239000004014 plasticizer Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
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- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to a modified polypropylene pipe used for protecting the high-voltage power cable. The modified polypropylene pipe is prepared by co-extruding three layers, wherein the inner layer is made from polypropylene material, the middle layer is made from polyethylene material, the outer layer is made from polypropylene material; the inner layer comprises the following components by weight percent: 80-85% of MPP resin, 10-12% of MPP special modified material, 2% of PP masterbatch and 1-8% of other processing additives; the middle layer comprises the following components by weight percent: 90-95% of PE resin, 2% of PE masterbatch and other processing additives; and the outer layer comprises the following components by weight percent: 80-85% of PP resin, 8-10% MPP special modified material, 2% of PP plasticizer, 2% of PP masterbatch and 1-8% of other processing additives. The modified polypropylene pipe used for protecting the high-voltage power cable has better low temperature brittleness resistance, high welding performance, better high temperature resistance and better physical and mechanical properties.
Description
Technical field:
The present invention relates to a kind of high voltage power cable protection modified polypropylene pipes.
Background technology:
Non-digging type power cable tubing in the market has the tubing of two types of PE and MPP, and the tubing that these two kinds of materials are produced has different Pros and Cons in different use fields.PE electric power tubing is compared with MPP electric power tubing, and low temperature resistant preferably fragility and high welding performance are arranged, and its toughness is better, and boundary of works area is extensive, and it is strong to be suitable for ability, and also can reach 50 years work-ing life, and the tubing cost of same specification and grade is relatively low.And MPP electric power tubing is compared with PE electric power tubing; because of the fusing point of MPP material higher relatively; the Young's modulus of material is bigger; the antifriction coefficient is higher; so MPP tubing has resistance to elevated temperatures preferably; relative PE is better for the product physical and mechanical property, can be suitable for the use of high pressure-temperature power cable protecting pipe material.So applied high-tension electricity electric power protection is modified polypropene (MPP) tubing with tubing substantially on the market, other medium-sized tubing are that PE power cable tubing is many, but in use field separately different defectives are arranged also.
Summary of the invention:
The invention provides a kind of existing low temperature resistant preferably fragility and high welding performance and have resistance to elevated temperatures preferably again, product physical and mechanical property high voltage power cable protection relatively preferably modified polypropylene pipes.
The present invention is achieved by the following technical solution: a kind of high voltage power cable protection modified polypropylene pipes, its major technique feature is that tubing is three-layer co-extruded forming, internal layer is a modified polypropylene material, and the middle layer is a polythene material, and skin is a polypropylene material;
Described internal layer weight ratio prescription is MPP resin 80～85%, MPP dedicated modified materials 10～12%, PP colour batch 2%, other processing aids 1～8%; Middle layer weight ratio prescription is PE resin 90～95%, PE colour batch 2%, other processing aids 3～8%; Outer weight ratio prescription is PP resin 80～85%, MPP dedicated modified materials 8～10%, PP toughner: 2%, PP colour batch 2%, other processing aids 1～8%;
Described ectonexine volume ratio respectively accounts for 15%, outer volume ratio accounts for 70%.
Effect of the present invention and advantage:
1, solved problems such as the present welding property that exists of traditional MPP tubing is poor, low temperature brittleness, expanded-20 ℃-90 ℃ to from 0 ℃-90 ℃ by the use temperature scope
2, utilize three-layer co-extruded technology, make the range of application of modified polypropylene pipes more extensive, can satisfy the needs of different construction requirements on the market and different applications.
3, utilize three layers of differing materials advantage separately, can comprehensively improve the physical and mechanical property of product, make tubing more convenient, reliable when installation.
4, according to different needs, adjust the proportioning of three layers of differing materials, can satisfy the requirement of various special constructions, such as high depth non-excavating construction and high sinuousness non-excavating construction etc.
5, compare with traditional MPP tubing on production cost, the tubing of same specification and grade reduces by 5～15%.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the transverse views of Fig. 1.
Embodiment:
As shown in Figure 1 and Figure 2, the protection of this high voltage power cable is three-layer co-extruded forming with modified polypropylene pipes, and internal layer 3 is a modified polypropylene material, and middle layer 2 is a polythene material, and outer 1 is polypropylene material.
Internal layer weight ratio prescription is MPP resin 80%, MPP dedicated modified materials 12%, PP colour batch 2%, other processing aids 6%; Middle layer weight ratio prescription is PE resin 95%, PE colour batch 2%, other processing aids 3%; Outer weight ratio prescription is PP resin 80%, MPP dedicated modified materials 10%, PP toughner: 2%, PP colour batch 2%, other processing aids 6%; The ectonexine volume ratio respectively accounts for 15%, outer volume ratio accounts for 70%.
Present device is the three-layer co-extruded MPP tubing of four a machines specific equipment.The ectonexine complete processing is consistent with common MPP pipe craft, and the middle layer complete processing is consistent with the common PE pipe craft.
Claims (3)
1. modified polypropylene pipes is used in a high voltage power cable protection, it is characterized in that tubing is three-layer co-extruded forming, and internal layer is a modified polypropylene material, and the middle layer is a polythene material, and skin is a polypropylene material.
2. modified polypropylene pipes is used in a kind of high voltage power cable protection as claimed in claim 1, it is characterized in that described internal layer weight ratio prescription is MPP resin 80～85%, MPP dedicated modified materials 10～12%, PP colour batch 2%, other processing aids 1～8%; Middle layer weight ratio prescription is PE resin 90～95%, PE colour batch 2%, other processing aids 3～8%; Outer weight ratio prescription is PP resin 80～85%, MPP dedicated modified materials 8～10%, PP toughner: 2%, PP colour batch 2%, other processing aids 1～8%.
3. modified polypropylene pipes is used in a kind of high voltage power cable protection as claimed in claim 1, it is characterized in that the ectonexine volume ratio respectively accounts for 15%, outer volume ratio accounts for 70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105133092A CN101967246A (en) | 2010-10-20 | 2010-10-20 | Modified polypropylene pipe used for protecting high-voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105133092A CN101967246A (en) | 2010-10-20 | 2010-10-20 | Modified polypropylene pipe used for protecting high-voltage power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101967246A true CN101967246A (en) | 2011-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105133092A Pending CN101967246A (en) | 2010-10-20 | 2010-10-20 | Modified polypropylene pipe used for protecting high-voltage power cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN101967246A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276913A (en) * | 2011-07-15 | 2011-12-14 | 洛阳市河之阳高分子材料有限公司 | Polypropylene material for MPP (modified polypropylene) jacking pipe |
| CN102966801A (en) * | 2012-11-02 | 2013-03-13 | 宏岳塑胶集团有限公司 | Method for preparing high-strength heat-resistant and cold-resistant modified polypropylene pipe |
| CN103178478A (en) * | 2011-12-21 | 2013-06-26 | 上海瑞河管业有限公司 | Modified polypropylene protection tube for buried high-voltage power cables |
| CN103178479A (en) * | 2011-12-21 | 2013-06-26 | 上海瑞河管业有限公司 | Reinforced polypropylene corrugated pipe for buried high-voltage power cables |
| CN103944132A (en) * | 2014-04-29 | 2014-07-23 | 国家电网公司 | Modified polypropylene composite tubular product for protecting high-voltage cable |
| CN104086890A (en) * | 2014-07-11 | 2014-10-08 | 安徽宁国市高新管业有限公司 | High flaming retarding MPP power protecting tube |
| CN108000833A (en) * | 2017-11-03 | 2018-05-08 | 金华市华宇管业有限公司 | Height filling environmental protection MPP power pipe preparation processes |
| CN114576436A (en) * | 2022-04-12 | 2022-06-03 | 公元管道(天津)有限公司 | Impact-resistant PP-R cold and hot water pipe and production method thereof |
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| CN1533329A (en) * | 2001-06-04 | 2004-09-29 | ʥ�걾������������˾ | Multilayer polymeric article with intercrossing polymer layer and its making method |
| CN101761707A (en) * | 2009-12-28 | 2010-06-30 | 上海通产丽星包装材料有限公司 | Coextrusion composite polypropylene soft pipe and production method |
| CN201918675U (en) * | 2010-10-20 | 2011-08-03 | 杭州联通管业有限公司 | Modified PP (polypropylene) pipe for protecting high voltage power supply cable |
-
2010
- 2010-10-20 CN CN2010105133092A patent/CN101967246A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1533329A (en) * | 2001-06-04 | 2004-09-29 | ʥ�걾������������˾ | Multilayer polymeric article with intercrossing polymer layer and its making method |
| CN101761707A (en) * | 2009-12-28 | 2010-06-30 | 上海通产丽星包装材料有限公司 | Coextrusion composite polypropylene soft pipe and production method |
| CN201918675U (en) * | 2010-10-20 | 2011-08-03 | 杭州联通管业有限公司 | Modified PP (polypropylene) pipe for protecting high voltage power supply cable |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276913A (en) * | 2011-07-15 | 2011-12-14 | 洛阳市河之阳高分子材料有限公司 | Polypropylene material for MPP (modified polypropylene) jacking pipe |
| CN102276913B (en) * | 2011-07-15 | 2013-03-20 | 洛阳市河之阳高分子材料有限公司 | Polypropylene material for MPP (modified polypropylene) jacking pipe |
| CN103178478A (en) * | 2011-12-21 | 2013-06-26 | 上海瑞河管业有限公司 | Modified polypropylene protection tube for buried high-voltage power cables |
| CN103178479A (en) * | 2011-12-21 | 2013-06-26 | 上海瑞河管业有限公司 | Reinforced polypropylene corrugated pipe for buried high-voltage power cables |
| CN102966801A (en) * | 2012-11-02 | 2013-03-13 | 宏岳塑胶集团有限公司 | Method for preparing high-strength heat-resistant and cold-resistant modified polypropylene pipe |
| CN102966801B (en) * | 2012-11-02 | 2015-09-30 | 宏岳塑胶集团有限公司 | A kind of high strength heat resistant resists cold the preparation method of modified polypropylene pipes |
| CN103944132A (en) * | 2014-04-29 | 2014-07-23 | 国家电网公司 | Modified polypropylene composite tubular product for protecting high-voltage cable |
| CN104086890A (en) * | 2014-07-11 | 2014-10-08 | 安徽宁国市高新管业有限公司 | High flaming retarding MPP power protecting tube |
| CN104086890B (en) * | 2014-07-11 | 2016-08-24 | 安徽宁国市高新管业有限公司 | A kind of high fire-retardance MPP electric power protection pipe |
| CN108000833A (en) * | 2017-11-03 | 2018-05-08 | 金华市华宇管业有限公司 | Height filling environmental protection MPP power pipe preparation processes |
| CN114576436A (en) * | 2022-04-12 | 2022-06-03 | 公元管道(天津)有限公司 | Impact-resistant PP-R cold and hot water pipe and production method thereof |
| CN114576436B (en) * | 2022-04-12 | 2023-09-05 | 公元管道(天津)有限公司 | Impact-resistant PP-R cold and hot water pipe and production method thereof |
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| PB01 | Publication | ||
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Application publication date: 20110209 |