CN201851796U - Polypropylene and polyethylene composite pipe - Google Patents
Polypropylene and polyethylene composite pipe Download PDFInfo
- Publication number
- CN201851796U CN201851796U CN2010206257401U CN201020625740U CN201851796U CN 201851796 U CN201851796 U CN 201851796U CN 2010206257401 U CN2010206257401 U CN 2010206257401U CN 201020625740 U CN201020625740 U CN 201020625740U CN 201851796 U CN201851796 U CN 201851796U
- Authority
- CN
- China
- Prior art keywords
- pipe
- polypropylene
- polyethylene
- layer
- composite pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a plastic composite pipe, in particular to a polypropylene and polyethylene composite pipe. A polypropylene pipe is formed by the modified polypropylene material through extrusion molding and is used as the external layer of the polypropylene and polyethylene composite pipe, and an internal polyethylene pipe layer is arranged on the inner wall of the polypropylene pipe, and the external polypropylene pipe layer and the internal polyethylene pipe layer forms the composite pipe through a hot melt adhesive layer between the two pipe layers. The polypropylene pipe layer is arranged on the external layer of the composite pipe, and the peroxide crosslinked polyethylene or heat-resisting polyethylene pipe layer is arranged on the internal layer, so that the polypropylene and polyethylene composite pipe has the advantages that polypropylene can meet the connection requirement that the plastic pipes are directly hot-melted, and the crosslinked polyethylene or temperature resistant polyethylene medium has wide temperature application range (-40 to 110 DEG C), strong shock resistance and aging resistance, thereby being convenient for construction, improving the pipe connecting efficiency, having good connection sealing effect, and eliminating the problems of water and gas leakage at the pipe connections after installation in a traditional mechanical connection way; at the same time, the shock resistance, the freezing resistance, the high temperature resistance and the aging resistance of the polypropylene and polyethylene composite pipe are greatly improved, and the composite pipe has wide application range.
Description
Technical field
The utility model relates to a kind of compound plastic pipe, particularly relates to a kind of polypropylene, polyethylene compound pipe.
Background technique
Along with the development of plastics macromolecule technology, overall performances such as the intensity of plastics and toughness are greatly improved, and it has low, the corrosion resistant advantage of cost in addition, is widely used gradually to make hot water or cold water's transmission pipeline tubing.Linear expansion coeffcient is big because the common plastics tube that industry in the past or civil building etc. extensively adopt has, uvioresistant and impervious oxygen poor performance, poor seismic behavior, predisposed to damage by external force and shortcoming such as low temperature brittleness, therefore in use resistance to heat and low temperature mechanical shock resistance are relatively poor, easy booster under the high-temperature condition, low temperature transportation, loading and unloading and construction are damaged easily by hard thing bump.
The aluminium-plastic composite pipe that occurs on the market or adopt the metal and the plastic composite pipe of metal reinforcing such as steel band afterwards, with respect to former pure plastic hot fusion tube intensity large increase had been arranged, reduced the thermal expansion coefficient of pipeline, thermostability improves, and can connect by hot melt.
It is optimal Placement in present tubing and the pipe fitting Placement that hot melt connects.By hot melt the structure of molecule between tubing, pipe fitting same material is interpenetrated, connect closely knit, ne-leakage, and easily operation, high working efficiency, the pipe joint place after the connection is not easy to leak, leak gas, and is safe in utilization, lasting.Because connecting, hot melt has the advantage of good seal performance, easy construction, fundamentally solved between original aluminium-plastic composite pipe tubing and the tubing the easy leakage problems in pipe fitting Placement joint such as thread types or clamp-press type that adopt more, therefore in building, various fields such as industrial, civilian, be widely used.But present composite metal-plastic pipe, because the physical property difference of metal and plastics is bigger, must cause this kind composite pipe to have unsurmountable fatal shortcoming, for example under the loop condition that colds and heat succeed each other, take place easily to cause situations such as composite pipe cracking, booster, influence its normal use because of expansion coefficient is inconsistent.
Peroxide crosslinked polyethylene in the market (PE-Xa) plastic tube, the intensity height, high temperature resistant (110 ° of C were by test in 8760 hours), and chemical molecular inertia height, stable in properties, anti-aging, but it can not satisfy the requirement of tubing, the connection of pipe fitting hot melt.Heat-proof polythene (PERT) though high temperature resistant, good toughness, its intensity is low; Though can connect by hot melt, hot melt connects serious sticking to mould, the hot melt weak effect; Easy to leak, and cause tubing, pipe fitting connection part to stop up easily; And modified polypropylene plastic tubing (PP-R, PP-B etc.) though the hot melt switching performance is superior, tubing, pipe fitting structure of molecule can interpenetrate fully and fuse into one, and its shortcoming is that shock resistance is poor, low temperature brittleness is big, easily because of collision impact causes breakage, weatherability is poor in the low temperature transportation and handling procedure, the easy bursting by freezing of low temperature, high temperature (95 ° of C of high-temperature resistant, 70 ° of national Specification serviceability temperatures can not satisfy higher Environmental Conditions and require below the C) yielding, explosion, aging easily.
Crosslinked polyethylene (PE-Xa) is though plastic tube has reached desirable requirement at aspects such as thermal stabilities, but it is owing to can not satisfy the hot melt connection request, can't connect by hot melt, therefore need adopt traditional mounting process during the pipeline connection, tube and tube need connect by machinery types such as card pressures, has increased cost of material and construction operation amount.The back is installed occurs easily occurring that the pipe joint joint leaks, the gas leakage problem because of joint (generally adopting copper sleeve) and pipe material expansion coefficient are inconsistent.In addition,, there is the problem of pipeline undergauge, causes the pipe joint place internal diameter of same specification model to diminish, influence pipeline internal medium flow, flow velocity by the pipe fitting connection of clamp-press type.
The model utility content
The utility model proposes a kind of polypropylene, polyethylene compound pipe in conjunction with the advantage of prior art, can either satisfy the installation requirements that hot melt connects, and has further improved combination properties such as composite pipe is cold-resistant freeze proof and high temperature resistant again.
The technological scheme that the utility model adopted:
A kind of polypropylene, polyethylene compound pipe, outer for adopting the polypropylene tube of modified polypropylene material extruding and moulding, be close to described polypropylene tube inwall and be provided with the polyethylene pipe internal layer, described polypropylene tube skin and polyethylene pipe internal layer are formed composite pipe by the heat-fusing glue layer between the two pipe layers.
Described polypropylene, polyethylene compound pipe, polyethylene pipe internal layer adopt the extruding and moulding of peroxide crosslinked polyethylene material.
Described polypropylene, polyethylene compound pipe, the polyethylene pipe inner layer material adopts the heat-proof polythene extruding and moulding.
Useful good effect of the present utility model:
The utility model polypropylene, polyethylene compound pipe, skin is the polypropylene tube layer, internal layer is peroxide crosslinked polyethylene or heat-proof polythene, have the advantage that polypropylene can satisfy the characteristics of the direct hot melt connection request of plastic pipe and crosslinked polyethylene or heat-proof polythene medium temperature (--40 °～110 ° C) applied widely concurrently, both made things convenient for construction, improve pipeline and connected working efficiency, connect good sealing effect, stopped traditional mechanical connection manner and installed that pipe joint place, back leaks, the gas leakage problem; Improved simultaneously the cold-resistant freeze proof and resistance to high temperature of composite pipe greatly, applied widely, the intensity height.
Description of drawings
Fig. 1: the utility model polypropylene, polyethylene compound pipe structural representation.
Embodiment
Embodiment one: referring to Fig. 1, the utility model polypropylene, polyethylene compound pipe, outer 1 for adopting the polypropylene tube of atactic copolymerized polypropene (PP-R) or the extruding and moulding of Polypropylene Of Raised Temperature Resistance Pipe (PP-B) material, be close to described polypropylene tube inwall and be provided with polyethylene pipe internal layer 3, described polypropylene tube skin and polyethylene pipe internal layer are formed composite pipe by the heat-fusing glue layer 2 between the two pipe layers.
Embodiment two: referring to Fig. 1, and present embodiment polypropylene, polyethylene compound pipe, described polyethylene pipe internal layer 3 adopts the extruding and moulding of peroxide crosslinked polyethylene (PE-Xa) material.
Embodiment three: referring to Fig. 1, and present embodiment polypropylene, polyethylene compound pipe, what they were different with embodiment one is: described polyethylene pipe internal layer 3 materials adopt the extruding and moulding of heat-proof polythene (PERT) material.
The utility model polypropylene, polyethylene compound pipe, the thickness of outer PA tube should satisfy the hot melt connection request. The utility model polypropylene, polyethylene compound pipe not only overcome easily aging shortcoming of the deadly defect of polypropylene low temperature fragility and high temperature, overcome simultaneously the shortcoming that crosslinked polyethylene can not hot melt connects; Have strong, the anti-severe cold of polypropylene (PP-R etc.) hot melt connection and crosslinked polyethylene and heat-proof polythene shock resistance freeze proof (--40 ° of C), high temperature resistant (110 ° of C were by test in 8760 hours) concurrently, chemical molecular inertia height, stable in properties, aging-resistant advantage.
Claims (3)
1. a polypropylene, polyethylene compound pipe, outer for adopting the polypropylene tube of modified polypropylene material extruding and moulding, it is characterized in that: be close to described polypropylene tube inwall and be provided with the polyethylene pipe internal layer, described polypropylene tube skin and polyethylene pipe internal layer are formed composite pipe by the heat-fusing glue layer between the two pipe layers.
2. polypropylene according to claim 1, polyethylene compound pipe is characterized in that: described polyethylene pipe internal layer adopts the extruding and moulding of peroxide crosslinked polyethylene material.
3. polypropylene according to claim 1, polyethylene compound pipe is characterized in that: described polyethylene pipe inner layer material adopts the heat-proof polythene extruding and moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206257401U CN201851796U (en) | 2010-11-26 | 2010-11-26 | Polypropylene and polyethylene composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206257401U CN201851796U (en) | 2010-11-26 | 2010-11-26 | Polypropylene and polyethylene composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851796U true CN201851796U (en) | 2011-06-01 |
Family
ID=44094187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206257401U Expired - Fee Related CN201851796U (en) | 2010-11-26 | 2010-11-26 | Polypropylene and polyethylene composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851796U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705591A (en) * | 2012-06-29 | 2012-10-03 | 宁夏青龙塑料管材有限公司 | Heat-resistant and pressure-resistant polyethylene composite pipe |
| CN103498977A (en) * | 2013-08-16 | 2014-01-08 | 上海金山洋生管道有限公司 | Large-diameter enhanced composite polyethylene polypropylene corrugated pipe and preparing technology thereof |
| CN103944132A (en) * | 2014-04-29 | 2014-07-23 | 国家电网公司 | Modified polypropylene composite tubular product for protecting high-voltage cable |
| CN108017818A (en) * | 2017-10-16 | 2018-05-11 | 浙江伟星新型建材股份有限公司 | A kind of ant-scaling random polypropylene and modified ultra-high molecular weight polyethylene multiple tube |
| CN112128478A (en) * | 2020-08-04 | 2020-12-25 | 扬州华光橡塑新材料有限公司 | Multilayer co-extrusion cooling pipe and preparation method thereof |
| CN114440013A (en) * | 2021-12-28 | 2022-05-06 | 日丰企业集团有限公司 | Low-temperature-resistant PP-R composite pipe and preparation method and application thereof |
-
2010
- 2010-11-26 CN CN2010206257401U patent/CN201851796U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705591A (en) * | 2012-06-29 | 2012-10-03 | 宁夏青龙塑料管材有限公司 | Heat-resistant and pressure-resistant polyethylene composite pipe |
| CN103498977A (en) * | 2013-08-16 | 2014-01-08 | 上海金山洋生管道有限公司 | Large-diameter enhanced composite polyethylene polypropylene corrugated pipe and preparing technology thereof |
| CN103944132A (en) * | 2014-04-29 | 2014-07-23 | 国家电网公司 | Modified polypropylene composite tubular product for protecting high-voltage cable |
| CN108017818A (en) * | 2017-10-16 | 2018-05-11 | 浙江伟星新型建材股份有限公司 | A kind of ant-scaling random polypropylene and modified ultra-high molecular weight polyethylene multiple tube |
| CN108017818B (en) * | 2017-10-16 | 2020-06-30 | 浙江伟星新型建材股份有限公司 | Anti-scaling random polypropylene and modified ultra-high molecular weight polyethylene composite pipe |
| CN112128478A (en) * | 2020-08-04 | 2020-12-25 | 扬州华光橡塑新材料有限公司 | Multilayer co-extrusion cooling pipe and preparation method thereof |
| CN114440013A (en) * | 2021-12-28 | 2022-05-06 | 日丰企业集团有限公司 | Low-temperature-resistant PP-R composite pipe and preparation method and application thereof |
| CN114440013B (en) * | 2021-12-28 | 2024-04-05 | 日丰企业集团有限公司 | Low-temperature-resistant PP-R composite pipe and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201851796U (en) | Polypropylene and polyethylene composite pipe | |
| CN201651577U (en) | Enhancement type flexible thermal-insulation composite tube | |
| CN201891953U (en) | Lining type steel-plastic composite pipe | |
| CN111396644A (en) | Continuous fiber prepreg tape enhanced homogenization high-pressure-resistant pipeline system and manufacturing method thereof | |
| CN207112198U (en) | A kind of steel strip reinforced PE helical bellowses for being easy to connection | |
| CN201322143Y (en) | Glass fiber aluminum-plastic composite pipe | |
| CN206861152U (en) | A kind of double inner tube formula polyurethane thermal pipe | |
| CN204647581U (en) | Polypropylene random copolymer pipe | |
| CN107642649A (en) | A kind of construction pressure-resistant pipeline and its connecting installation structure | |
| CN217081727U (en) | Anti-frost-crack outdoor ppr steady-state pipe | |
| CN201561200U (en) | Novel glass fibre plastic aluminium stable state composite pipe | |
| CN201177109Y (en) | High polymer plastic pipe | |
| CN203273162U (en) | Steel net reinforced plastic pipe clamp | |
| CN201757235U (en) | Pipe fitting for metal corrugated pipe connection | |
| CN109519636A (en) | Electric heating melting compound pipeline complex pipeline compensator | |
| CN214618275U (en) | Steel skeleton composite pipe using polybutene as resin base material | |
| CN206338499U (en) | Composite strengthening PP R are managed | |
| CN209725572U (en) | Electric heating melting compound pipeline complex pipeline compensator | |
| CN110657288A (en) | Metal-plastic composite pipe system and manufacturing method thereof | |
| CN210890548U (en) | Socket pressing type metal pipe fitting | |
| CN214064070U (en) | Novel anti-extrusion composite pipeline | |
| CN203413269U (en) | Slide tensioning type pipe fitting for flexible pipe | |
| CN219345746U (en) | Steel-plastic composite pipe | |
| CN102242840A (en) | Concave-convex type combined flange pipe joint for connecting composite pipes | |
| CN218331321U (en) | Performance detection device for heat preservation pipe in extreme environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20131126 |