CN202612890U - Coextruded heat-resistant polyethylene antioxygen floor heating pipe - Google Patents
Coextruded heat-resistant polyethylene antioxygen floor heating pipe Download PDFInfo
- Publication number
- CN202612890U CN202612890U CN 201220202905 CN201220202905U CN202612890U CN 202612890 U CN202612890 U CN 202612890U CN 201220202905 CN201220202905 CN 201220202905 CN 201220202905 U CN201220202905 U CN 201220202905U CN 202612890 U CN202612890 U CN 202612890U
- Authority
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- China
- Prior art keywords
- layer
- polyethylene
- floor heating
- heating pipe
- extrusion
- 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
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- 229920000573 polyethylene Polymers 0.000 title claims abstract description 55
- 239000004698 Polyethylene (PE) Substances 0.000 title claims abstract description 45
- -1 polyethylene Polymers 0.000 title claims abstract description 42
- 238000010438 heat treatment Methods 0.000 title claims abstract description 26
- 239000004411 aluminium Substances 0.000 claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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[Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 23
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Abstract
The utility model discloses a coextruded heat-resistant polyethylene antioxygen floor heating pipe, which comprises an outer polyethylene layer, an aluminium layer and an inner polyethylene layer which are sequentially arranged from inside to outside, and is characterized in that a first layer of hot melt adhesive is arranged between the outer polyethylene and the aluminium layer; a second layer of hot melt adhesive is arranged between the aluminium layer and the inner polyethylene layer; and the outer polyethylene layer, the aluminium layer, the inner polyethylene layer, the first layer of hot melt adhesive and the second layer of hot melt adhesive are coextruded and combined through a coextruder to form a whole. The coextruded heat-resistant polyethylene antioxygen floor heating pipe has a coextruded integrated structure; the middle layer is the aluminium layer, so that the short time strength and the long time strength of a pipe are enhanced; oxygen osmosis is effectively prevented; and the floor heating pipe has the flexibility of a plastic pipe and the rigidity of metal and can be widely applied to the field of floor heating.
Description
Technical field
The utility model relates to the tubing technical field, is specifically related to a kind of heat-proof polythene resistance oxygen floor heating pipe that adopts co-extrusion technology to extrude.
Background technique
Heat-proof polythene is PE-RT (Polyethylene of raised temperature resistance); It is a kind of noncrosslinking polyethylene that can be used for hot-water line; The people is also arranged in order to have given prominence to its noncrosslinking characteristic; Be its " high temperature resistant non-crosslinked polyethylene ", it is a kind of a kind of middle height polyethylene that adopts specific molecule design and synthesis technology to produce, and adopts the method for ethene and octene copolymer; Quantity and distribution through the control side chain distinctive molecular structure that is resolved improves the heat resistance of PE.Because the existence of octene short-chain branch makes the big molecule of PE uncrystallizable in a flat crystal; But be applied in several crystal, having formed the connection between the crystal, it has kept the good pliability of PE; High thermal conductivity and inertia, it is better to make it resistance to pressure simultaneously.
Though for also adopting bonding mode to be connected, in actual production and using process, occur the phenomenon of layering easily between existing polyethylene resistance oxygen floor heating pipe inner plastic layer and aluminium strip layer and outer plastic layer and the aluminium strip layer.
In order to solve above-mentioned deficiency of the prior art, the utility model provides a kind of new solution.
The model utility content
The technical problem that the utility model will solve is: the deficiency that is directed to existing technology; A kind of co-extrusion heat-proof polythene resistance oxygen floor heating pipe is provided; This co-extrusion heat-proof polythene resistance oxygen floor heating pipe adopts the incorporate structure of co-extrusion, and the mesosphere is aluminium lamination, has strengthened the short-term and the long term strength of tubing; Effectively anti-block infiltration makes floor heating pipe have the pliability of plastic tube and the rigidity of metal concurrently.
For reaching the foregoing invention purpose, the technological scheme that the utility model adopted is: a kind of co-extrusion heat-proof polythene resistance oxygen floor heating pipe is provided, comprises the outer layer polyethylene layer, aluminium lamination and the inner layer polyethylene layer that set gradually from the inside to the outside; It is characterized in that: be provided with the first layer PUR between said outer layer polyethylene layer and the aluminium lamination; Be provided with second layer PUR between said aluminium lamination and the inner layer polyethylene layer; Said outer layer polyethylene layer, aluminium lamination, inner layer polyethylene layer, first layer PUR and second layer PUR are combined into one through the co-extrusion machine co-extrusion.
Further, said outer layer polyethylene layer and inner layer polyethylene layer are medium density polyethylene.
Further, the proportion of said medium density polyethylene is greater than 0.93g ∕ m
3And less than 0.95g ∕ m
3
In sum; The mobile phone that the utility model provided has co-extrusion heat-proof polythene resistance oxygen floor heating pipe than existing technology and adopts the incorporate structure of co-extrusion; And the mesosphere is an aluminium lamination; Strengthened the short-term and the long term strength of tubing, effectively anti-block infiltration makes floor heating pipe have the pliability of plastic tube and the rigidity of metal concurrently.
Description of drawings
Fig. 1 is the structural representation of co-extrusion heat-proof polythene resistance oxygen floor heating pipe.
Wherein, 1, outer layer polyethylene layer; 2, aluminium lamination; 3, inner layer polyethylene layer; 4, first layer PUR; 5, second layer PUR.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done and to be described in detail:
As shown in the figure, this co-extrusion heat-proof polythene resistance oxygen floor heating pipe comprises the outer layer polyethylene layer 1, aluminium lamination 2 and the inner layer polyethylene layer 3 that set gradually from the inside to the outside; It is characterized in that: be provided with first layer PUR 4 between said outer layer polyethylene layer 1 and the aluminium lamination 2; Be provided with second layer PUR 5 between said aluminium lamination 2 and the inner layer polyethylene layer 3; Said outer layer polyethylene layer 1, aluminium lamination 2, inner layer polyethylene layer 3, first layer PUR 4 and second layer PUR 5 are combined into one through the co-extrusion machine co-extrusion; Said outer layer polyethylene layer 1 is medium density polyethylene with inner layer polyethylene layer 3; The proportion of said medium density polyethylene is greater than 0.93g ∕ m
3And less than 0.95g ∕ m
3, medium density polyethylene is the special-purpose material of a kind of novel heating, stable mechanical property forms through the metallocene catalysis copolymerization with the monomer of ethene and octene.
The floor heating pipe of the utility model has changed the internal and external layer material of existing floor heating composite pipe; Substitute former high density polyethylene (HDPE) with medium density polyethylene, the embrittlement temperature of medium density polyethylene is low, has excellent resistance to low temperature; So also can construct under the situation in the winter time warmly; And when crooked pipeline, need not preheating, be convenient to constructing operation, also can inner layer polyethylene still be adopted traditional high density polyethylene (HDPE); Outer layer polyethylene then adopts medium density polyethylene, because the physical property of outer layer polyethylene is bigger to the performance impact of heating coil entirely.
In sum; The co-extrusion heat-proof polythene resistance oxygen floor heating pipe that utilizes the utility model to provide adopts the incorporate structure of co-extrusion, and the mesosphere is an aluminium lamination, has strengthened the short-term and the long term strength of tubing; Effectively anti-block infiltration makes floor heating pipe have the pliability of plastic tube and the rigidity of metal concurrently; Can be widely used in the floor heating field.
Though describe in detail in conjunction with the embodiment of accompanying drawing, should not be construed as qualification to the protection domain of this patent to the utility model.In the described scope of claims, various modifications that those skilled in the art can make without creative work and distortion still belong to the protection domain of this patent.
Claims (3)
1. a co-extrusion heat-proof polythene resistance oxygen floor heating pipe comprises the outer layer polyethylene layer (1), aluminium lamination (2) and the inner layer polyethylene layer (3) that set gradually from the inside to the outside; It is characterized in that: be provided with first layer PUR (4) between said outer layer polyethylene layer (1) and the aluminium lamination (2); Be provided with second layer PUR (5) between said aluminium lamination (2) and the inner layer polyethylene layer (3); Said outer layer polyethylene layer (1), aluminium lamination (2), inner layer polyethylene layer (3), first layer PUR (4) and second layer PUR (5) are combined into one through the co-extrusion machine co-extrusion.
2. co-extrusion heat-proof polythene resistance oxygen ground heating pipes according to claim 1, it is characterized in that: said outer layer polyethylene layer (1) and inner layer polyethylene layer (3) are medium density polyethylene.
3. co-extrusion heat-proof polythene resistance oxygen ground heating pipes according to claim 2, it is characterized in that: the proportion of said medium density polyethylene is greater than 0.93g ∕ m
3And less than 0.95g ∕ m
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220202905 CN202612890U (en) | 2012-05-08 | 2012-05-08 | Coextruded heat-resistant polyethylene antioxygen floor heating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220202905 CN202612890U (en) | 2012-05-08 | 2012-05-08 | Coextruded heat-resistant polyethylene antioxygen floor heating pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612890U true CN202612890U (en) | 2012-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220202905 Expired - Fee Related CN202612890U (en) | 2012-05-08 | 2012-05-08 | Coextruded heat-resistant polyethylene antioxygen floor heating pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974407A (en) * | 2015-07-29 | 2015-10-14 | 曼瑞德集团有限公司 | Preparation method and production facility of high-creep-resistance five-layer oxygen-barrier plastic pipe |
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2012
- 2012-05-08 CN CN 201220202905 patent/CN202612890U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974407A (en) * | 2015-07-29 | 2015-10-14 | 曼瑞德集团有限公司 | Preparation method and production facility of high-creep-resistance five-layer oxygen-barrier plastic pipe |
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| C14 | Grant of patent or utility model | ||
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| EXPY | Termination of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20150508 |