CN103277595B - A kind of double-deck PE fuel tube with termite-proof protective layer - Google Patents
A kind of double-deck PE fuel tube with termite-proof protective layer Download PDFInfo
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- CN103277595B CN103277595B CN201310166270.5A CN201310166270A CN103277595B CN 103277595 B CN103277595 B CN 103277595B CN 201310166270 A CN201310166270 A CN 201310166270A CN 103277595 B CN103277595 B CN 103277595B
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Abstract
The present invention relates to technology of gas pipeline field, more specifically, relate to a kind of double-deck PE fuel tube with termite-proof protective layer.It comprises gas pipeline; the external protection that described gas pipeline is lost by internal layer and the termite-proof moth as delivery pipe forms double layer construction; joint between described internal layer and external protection is provided with adhesion layer, and external protection can be peeled off mutually together with adhesion layer and internal layer under the effect of external force.Certain adhesive force is had between internal layer of the present invention and external protection; can ensure two-layer between can close adhesion and can not sliding or be separated; can by external force, the external protection of desired area be peeled off and not damage the delivery pipe of internal layer when mounted simultaneously; it has termite-proof, the advantage such as scratch resistant, connection safe ready compared with individual layer PE fuel tube, effectively can improve the safety reliability that gas pipeline is installed and used.
Description
Technical field
The present invention relates to technology of gas pipeline field, more specifically, relate to a kind of double-deck PE fuel tube with termite-proof protective layer.
Background technique
PE fuel tube has that long service life, chemical resistance are strong, simple and reliable, the aspect advantage such as tightness good, good toughness, energy efficient, pipeline overall cost are low of constructing, fuel gas transmission obtains more and more a large amount of application, and some areas are using the first-selection of PE pipeline as town gas pipe.
But also there are some difficulties needing to solve in PE fuel tube while widely applying.As everyone knows, gas pipeline requires very high to Safety performance, however due to PE material hardness lower, can be made that pipeline is damaged even to be gnawed through by the erosion of termite moth, thus cause gas leakage; On the other hand due to characteristic surface easily scratch in the process of transporting and lay of PE pipeline material itself, also bring hidden trouble to the safe handling of PE pipeline.In addition, PE pipeline is when adopting electric smelting to connect, and need process pipe surface, process bothers relatively.
Summary of the invention
The technical problem to be solved in the present invention be provide for the deficiencies in the prior art a kind of can the double-deck PE fuel tube of termite-proof, scratch resistant, connection safe ready.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of double-deck PE fuel tube with termite-proof protective layer; comprise gas pipeline; the external protection that gas pipeline is lost by internal layer and the termite-proof moth as delivery pipe forms double layer construction; joint between described internal layer and external protection is provided with adhesion layer, and external protection can be peeled off mutually together with adhesion layer and internal layer under the effect of external force.Certain adhesive force is had owing to having adhesion layer between internal layer and external protection; can ensure two-layer between can close adhesion and can not sliding or be separated, can by external force, the external protection of desired area be peeled off and not damage the delivery pipe of internal layer when mounted simultaneously.
Preferred scheme further, above-mentioned have in the double-deck PE fuel tube of termite-proof protective layer, and the peeling strength between described internal layer and external protection is between 0.1-4.0N/mm.
Further preferred scheme, above-mentioned have in the double-deck PE fuel tube of termite-proof protective layer, and the peeling strength between described internal layer and external protection is 3N/mm.
Further preferred scheme, above-mentioned have in the double-deck PE fuel tube of termite-proof protective layer, and described internal layer is made up of one or more materials of PE80, PE100, PE100-RC.
Further preferred scheme, above-mentioned have in the double-deck PE fuel tube of termite-proof protective layer, and the thickness of described external protection is between 0.1-6mm.
Preferably, the thickness of described external protection is 0.2mm or 0.5mm or 0.7mm or 2.5mm or 4mm.
Further preferred scheme, above-mentioned have in the double-deck PE fuel tube of termite-proof protective layer, and the material that described external protection is composited by matrix resin interpolation modified additive is made.
Further preferred scheme; above-mentioned have in the double-deck PE fuel tube of termite-proof protective layer, and described base resin is one or more in homo-polypropylene (PP-H), atactic copolymerized polypropene (PP-R), block copolymerization polypropylene (PP-B), PVC＝polyvinyl chloride (PVC-U), chlorinated polynvinyl chloride (CPVC) (PVC-C), polyethylene, polybutylene (PB), ABS.
Further preferred scheme, above-mentioned have in the double-deck PE fuel tube of termite-proof protective layer, and described modified additive contains one or more in nucleator, adhesive force modifier, light stabilizer, PVC auxiliary agent and look mother.
Further preferred scheme, above-mentioned have in the double-deck PE fuel tube of termite-proof protective layer, and described modified additive accounts for 5 ~ 40% of external protection material gross weight, and described modified additive comprises following component, the percentages by external protection material gross weight:
Nucleator 0 ~ 10%, adhesive force modifier 0 ~ 10%, light stabilizer 0 ~ 5%, PVC auxiliary agent 0 ~ 40%, look mother 0.5 ~ 5%.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
The gas pipeline that the present invention has the double-deck PE fuel tube of termite-proof protective layer adopts double layer construction; be made up of termite-proof and strippable outer protective layer and internal layer delivery pipe; there is termite-proof, the advantage such as scratch resistant, connection safe ready compared with individual layer PE fuel tube, effectively can improve the safety reliability that gas pipeline is installed and used.
Accompanying drawing explanation
Fig. 1 is the cross sectional representation of embodiment of the present invention gas pipeline.
In figure, internal layer 1, external protection 2.
Embodiment
Describe embodiments of the invention in detail below in conjunction with accompanying drawing, being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.Unless stated otherwise, the present invention adopts reagent, equipment and method are conventional commercial reagent, equipment and the conventional method used of the art.
In Fig. 1; the present invention discloses a kind of double-deck PE fuel tube with termite-proof protective layer; comprise gas pipeline; this gas pipeline forms double layer construction by as the internal layer 1 of delivery pipe and the external protection 2 of termite-proof moth erosion; joint between internal layer 1 and external protection 2 is provided with adhesion layer, and external protection 2 can be peeled off together with adhesion layer and internal layer 1 phase under the effect of external force.Certain adhesive force is had owing to having adhesion layer between internal layer 1 and external protection 2; can ensure two-layer between can close adhesion and can not sliding or be separated, can by external force, the external protection 2 of desired area be peeled off and not damage the delivery pipe of internal layer 1 when mounted simultaneously.
Peeling strength between internal layer 1 and external protection 2 is between 0.1-4.0N/mm.
Internal layer 1 is made up of one or more materials of PE80, PE100, PE100-RC.
The material that external protection 2 is composited by matrix resin interpolation modified additive is made, and wherein base resin is one or more in homo-polypropylene (PP-H), atactic copolymerized polypropene (PP-R), block copolymerization polypropylene (PP-B), PVC＝polyvinyl chloride (PVC-U), chlorinated polynvinyl chloride (CPVC) (PVC-C), polyethylene, polybutylene (PB), ABS; Modified additive contains one or more in nucleator, adhesive force modifier, light stabilizer, PVC auxiliary agent and look mother.The thickness of external protection 2 is between 0.1-6mm.
Described modified additive accounts for 5 ~ 40% of external protection material gross weight, and described modified additive comprises following component, the percentages by external protection material gross weight:
Nucleator 0 ~ 10%, adhesive force modifier 0 ~ 10%, light stabilizer 0 ~ 5%, PVC auxiliary agent 0 ~ 40%, look mother 0.5 ~ 5%.
The example of several making gas pipeline of the present invention is provided below.
Embodiment 1
External protection 2 raw material is the PP-H resin of 100 parts, the sorbitol nucleating agent of 2 parts, the yellow mother of 2 parts, 3 parts of titanium dioxides; Internal layer 1 raw material is PE100 resin, 3 parts of black masterbatch of 100 parts, and enter double-layer coextrusion mould extruding pipe material after two groups of raw materials are blended respectively, preparing nominal outside diameter is 20mm, and outer layer thickness is the double-deck PE fuel tube of 0.2mm.Before pipeline carries out electric smelting connection, cut external protection along connection part edge special tool, then protective layer is peeled off, expose the PE resin connection part that electric smelting connects, insert in electric melting pipe fittings and carry out electric smelting connection.
Embodiment 2
External protection 2 raw material is the PP-R resin of 100 parts, the sorbitol acetal nucleator of 2 parts, the black masterbatch of 2 parts; Internal layer 1 raw material is PE100-RC resin, 5 parts of black masterbatch of 100 parts, and enter double-layer coextrusion mould extruding pipe material after two groups of raw materials are blended respectively, preparing nominal outside diameter is 225mm, and outer layer thickness is the double-deck PE fuel tube of 2.5mm.Connecting means is with embodiment 1.
Embodiment 3
External protection 2 raw material is the PP-R resin of 100 parts, the orange mother of 2 parts, 3 parts of titanium dioxides; Internal layer 1 raw material is PE100 resin, 3 parts of black masterbatch of 100 parts, and enter double-layer coextrusion mould extruding pipe material after two groups of raw materials are blended respectively, preparing nominal outside diameter is 110mm, and outer layer thickness is the double-deck PE fuel tube of 0.7mm.Connecting means is with embodiment 1.
Embodiment 4
External protection 2 raw material is the PP-R resin of 80 parts, the PP-H resin of 20 parts, the sodium benzoate nucleator of 2 parts, the glycerin monostearate adhesive force modifier of 3 parts, the yellow mother of 3 parts, 5 parts of titanium dioxides; Internal layer 1 raw material is PE80 resin, 3 parts of black masterbatch of 100 parts, and enter double-layer coextrusion mould extruding pipe material after two groups of raw materials are blended respectively, preparing nominal outside diameter is 450mm, and outer layer thickness is the double-deck PE fuel tube of 4mm.Connecting means is with embodiment 1.
Embodiment 5
External protection 2 raw material is the PVC-U resin of 100 parts, the PVC auxiliary agent of 30 parts, the yellow mother of 2 parts; Internal layer 1 raw material is PE100 resin, 3 parts of black masterbatch of 100 parts, and enter double-layer coextrusion mould extruding pipe material after two groups of raw materials are blended respectively, preparing nominal outside diameter is 63mm, and outer layer thickness is the double-deck PE fuel tube of 0.5mm.Connecting means is with embodiment 1.
To sum up, gas pipeline of the present invention has termite-proof, the advantage such as scratch resistant, connection safe ready.The present invention is practical, is widely used.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (9)
1. one kind has the double-deck PE fuel tube of termite-proof protective layer, comprise gas pipeline, it is characterized in that, the external protection that described gas pipeline is lost by internal layer and the termite-proof moth as delivery pipe forms double layer construction, joint between described internal layer and external protection is provided with adhesion layer, and external protection can be peeled off mutually together with adhesion layer and internal layer under the effect of external force; Before interior conduit carries out electric smelting connection, cut external protection along connection part edge special tool, then protective layer is peeled off, expose the PE resin connection part that electric smelting connects, insert in electric melting pipe fittings and carry out electric smelting connection.
2. the double-deck PE fuel tube with termite-proof protective layer according to claim 1, it is characterized in that, the peeling strength between described internal layer and external protection is between 0.1-4.0N/mm.
3. the double-deck PE fuel tube with termite-proof protective layer according to claim 2, it is characterized in that, the peeling strength between described internal layer and external protection is 3N/mm.
4. the double-deck PE fuel tube with termite-proof protective layer according to claim 1, it is characterized in that, described internal layer is made up of one or more materials of PE80, PE100, PE100-RC.
5. the double-deck PE fuel tube with termite-proof protective layer according to claim 1, it is characterized in that, the thickness of described external protection is between 0.1-6mm.
6. the double-deck PE fuel tube with termite-proof protective layer according to claim 5, is characterized in that, the thickness of described external protection is 0.2mm or 0.5mm or 0.7mm or 2.5mm or 4mm.
7. the double-deck PE fuel tube with termite-proof protective layer according to claim 1, is characterized in that, the material that described external protection is composited by matrix resin interpolation modified additive is made.
8. the double-deck PE fuel tube with termite-proof protective layer according to claim 7; it is characterized in that, described matrix resin is one or more in homo-polypropylene (PP-H), atactic copolymerized polypropene (PP-R), block copolymerization polypropylene (PP-B), PVC＝polyvinyl chloride (PVC-U), chlorinated polynvinyl chloride (CPVC) (PVC-C), polyethylene, polybutylene (PB), ABS.
9. the double-deck PE fuel tube with termite-proof protective layer according to claim 7, it is characterized in that, described modified additive contains one or more in nucleator, adhesive force modifier, light stabilizer, PVC auxiliary agent and look mother.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310166270.5A CN103277595B (en) | 2013-05-08 | 2013-05-08 | A kind of double-deck PE fuel tube with termite-proof protective layer |
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| CN201310166270.5A CN103277595B (en) | 2013-05-08 | 2013-05-08 | A kind of double-deck PE fuel tube with termite-proof protective layer |
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| CN103277595A CN103277595A (en) | 2013-09-04 |
| CN103277595B true CN103277595B (en) | 2016-03-02 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470868A (en) * | 2013-09-17 | 2013-12-25 | 镇国广 | Corrosion-resistant, anti-aging, rat-proof and termite-proof polyethylene pipe fitting |
| CN106195527A (en) * | 2016-09-29 | 2016-12-07 | 江苏省绿岛管阀件有限公司 | A kind of protection pipe |
| CN106151772A (en) * | 2016-09-29 | 2016-11-23 | 江苏省绿岛管阀件有限公司 | A kind of novel protected pipe |
| CN107725908A (en) * | 2017-10-24 | 2018-02-23 | 潍坊友容实业有限公司 | Anti- incrustation type salt discharge filtrate wave duct in salt-soda soil and preparation method thereof |
| CN107725909A (en) * | 2017-10-24 | 2018-02-23 | 潍坊友容实业有限公司 | Salt-soda soil high intensity salt discharge filtrate pipe and preparation method thereof |
| CN107955461B (en) * | 2017-10-30 | 2020-09-01 | 临海伟星新型建材有限公司 | Termite-resistant polyethylene gas pipeline and preparation method thereof |
| CN109306103A (en) * | 2018-09-30 | 2019-02-05 | 康泰塑胶科技集团有限公司 | A kind of scratch resistance cracks at a slow speed PE gas pipeline and preparation method thereof |
| CN112454915A (en) * | 2019-09-09 | 2021-03-09 | 上海亚大塑料制品有限公司 | Butt welding method for polyethylene-coated pipelines |
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| CN2761942Y (en) * | 2004-10-12 | 2006-03-01 | 河北宝硕管材有限公司 | Anti-scoring double-layer compound plastic pipe |
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