CN101776185A - Composite pipe - Google Patents
Composite pipe Download PDFInfo
- Publication number
- CN101776185A CN101776185A CN200910045251A CN200910045251A CN101776185A CN 101776185 A CN101776185 A CN 101776185A CN 200910045251 A CN200910045251 A CN 200910045251A CN 200910045251 A CN200910045251 A CN 200910045251A CN 101776185 A CN101776185 A CN 101776185A
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- China
- Prior art keywords
- ppr
- composite pipe
- pert
- layer
- temperature resistant
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention provides a composite pipe which comprises an outer surface layer made of random copolymerized polypropylene material, and the inside of the outer surface layer is provided with an impact resisting layer which is made of high temperature resistant non-crosslinked polyethylene. By adding a high strength and non-fragile PERT material in a PPR pipeline, the PERT material is complementary to a PPR material, thus giving full play to the advantages of the PPR material and overcoming the adverse influence caused by the inherent defects of the PPR material.
Description
Technical field:
The present invention relates to chemical field, relate in particular to plastic processing technology, particularly a kind of composite pipe.
Background technique:
The PP-R duct products is made by atactic copolymerized polypropene, its light weight, resistance to heat are good, thermal conductivity is lower, and Young's modulus is less, and pipe resistance is little, pipe fitting is connected firmly, environmental protection, but also there is certain deficiency in the PP-R pipeline, mainly contains: and rigidity and shock resistance are than metallic conduit difference, coefficient of linear expansion is bigger, and construction is easy to generate defectives such as embrittlement.
Summary of the invention:
The object of the present invention is to provide a kind of composite pipe, the technical problem that described this composite pipe will solve PP-R tubing rigidity of the prior art and shock resistance is poor, coefficient of linear expansion is big, construction is easy to generate embrittlement.
This composite pipe of the present invention comprises the external layer that one deck is made of the atactic copolymerized polypropene material, and the inboard of described external layer is provided with one deck anti-impacting layer, and the material of described anti-impacting layer is high temperature resistant non-crosslinked polyethylene.
High temperature resistant non-crosslinked polyethylene (PERT) has good pliability, especially at low temperatures still can keep its pliability (impact resistance of PERT tubing in the time of one 40 ℃ is close with the shock resistance during 0 ℃ of PP-R tubing): high thermal conductivity (twice that is about PP-R) and inertia, long-term pressure resistance energy is preferably arranged simultaneously, can with the same life-span of building.The PERT material is easy to bending, and the stress of curved section can relax rapidly, does not rebound after the bending; Inner wall smooth, less scaling; Placement advanced person, for ease of maintenaince.PERT density is little, only is 1/9th of steel pipe.
The present invention and prior art contrast, and its effect is actively with tangible.The present invention forms complementation by increase a kind of high strength, non-fragile PERT material in the PPR pipeline with the PPR material, so just can give full play to the advantage of PPR material and overcomes the adverse effect that itself inherent defect brings.
Description of drawings:
Fig. 1 is the structural representation of a kind of composite pipe of the present invention.
Embodiment:
The invention provides a kind of composite pipe, comprise the external layer 2 that one deck is made of the atactic copolymerized polypropene material, the inboard of described external layer is provided with one deck anti-impacting layer 1, and the material of described anti-impacting layer 1 is high temperature resistant non-crosslinked polyethylene.
Claims (1)
1. a composite pipe includes one deck by the external layer that the atactic copolymerized polypropene material constitutes, and it is characterized in that: the inboard of described external layer is provided with one deck anti-impacting layer, and the material of described anti-impacting layer is high temperature resistant non-crosslinked polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910045251A CN101776185A (en) | 2009-01-13 | 2009-01-13 | Composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910045251A CN101776185A (en) | 2009-01-13 | 2009-01-13 | Composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101776185A true CN101776185A (en) | 2010-07-14 |
Family
ID=42512725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910045251A Pending CN101776185A (en) | 2009-01-13 | 2009-01-13 | Composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101776185A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003575A (en) * | 2010-09-29 | 2011-04-06 | 康泰塑胶科技集团有限公司 | Water supply pipes and preparation method thereof |
| CN104791555A (en) * | 2015-03-30 | 2015-07-22 | 杭州鸿雁管道系统科技有限公司 | Low-temperature-impacting resistant PP-R composite pipe and manufacturing method thereof |
| CN106764115A (en) * | 2016-11-08 | 2017-05-31 | 浙江中财管道科技股份有限公司 | A kind of freeze proof double-layer composite pipe |
-
2009
- 2009-01-13 CN CN200910045251A patent/CN101776185A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003575A (en) * | 2010-09-29 | 2011-04-06 | 康泰塑胶科技集团有限公司 | Water supply pipes and preparation method thereof |
| CN102003575B (en) * | 2010-09-29 | 2013-05-22 | 康泰塑胶科技集团有限公司 | Water supply pipes and preparation method thereof |
| CN104791555A (en) * | 2015-03-30 | 2015-07-22 | 杭州鸿雁管道系统科技有限公司 | Low-temperature-impacting resistant PP-R composite pipe and manufacturing method thereof |
| CN106764115A (en) * | 2016-11-08 | 2017-05-31 | 浙江中财管道科技股份有限公司 | A kind of freeze proof double-layer composite pipe |
| CN106764115B (en) * | 2016-11-08 | 2018-12-25 | 浙江中财管道科技股份有限公司 | A kind of freeze proof double-layer composite pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100714 |