CN110886909A - High-heat-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe - Google Patents
High-heat-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe Download PDFInfo
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- CN110886909A CN110886909A CN201911064460.XA CN201911064460A CN110886909A CN 110886909 A CN110886909 A CN 110886909A CN 201911064460 A CN201911064460 A CN 201911064460A CN 110886909 A CN110886909 A CN 110886909A
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000002131 composite material Substances 0.000 title claims abstract description 40
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 40
- 239000001301 oxygen Substances 0.000 title claims abstract description 40
- 239000010410 layer Substances 0.000 claims abstract description 135
- 239000004698 Polyethylene Substances 0.000 claims abstract description 96
- 239000004831 Hot glue Substances 0.000 claims abstract description 43
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 32
- -1 polyethylene Polymers 0.000 claims abstract description 30
- 229920000573 polyethylene Polymers 0.000 claims abstract description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 20
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims abstract description 20
- 239000010439 graphite Substances 0.000 claims abstract description 20
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 20
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000002360 preparation method Methods 0.000 claims abstract description 18
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 15
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 13
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 6
- 239000002210 silicon-based material Substances 0.000 claims abstract description 6
- 230000002265 prevention Effects 0.000 claims description 16
- 239000005543 nano-size silicon particle Substances 0.000 claims description 14
- 235000012239 silicon dioxide Nutrition 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 11
- KKYDYRWEUFJLER-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6,7,7,10,10,10-heptadecafluorodecyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCC(F)(F)F KKYDYRWEUFJLER-UHFFFAOYSA-N 0.000 claims description 7
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 7
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 7
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical group COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 239000007822 coupling agent Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000320516 Eothenomys eva Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
- C08K5/5419—Silicon-containing compounds containing oxygen containing at least one Si—O bond containing at least one Si—C bond
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention provides a high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe, and belongs to the technical field of pipes. The high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe has a structure with 5 layers, and is sequentially provided with a PE inner pipe scale-resistant layer, a first hot melt adhesive layer, an EVOH oxygen-resistant layer, a second hot melt adhesive layer and a PE outer pipe high-thermal-conductivity wear-resistant layer from inside to outside, wherein the preparation material of the PE inner pipe scale-resistant layer comprises polyethylene and fluorine silicon materials, and the preparation material of the PE outer pipe high-thermal-conductivity wear-resistant layer comprises polyethylene, graphite oxide, nano silica, vinyl silane coupling agent and processing aid.
Description
Technical Field
The invention belongs to the technical field of pipes, and relates to a high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe.
Background
The problems that a metal pipe fitting or an insert connected in a pipe is corroded, dirt is generated on the inner wall of the pipe, the outer wall of the pipe is easy to wear, the heat conduction efficiency of the pipe is low and the like are always difficult problems in a PE (polyethylene) heating pipeline, most heating pipeline products cannot have the performances of corrosion prevention, scale prevention and abrasion prevention at the same time, the service life of a pipeline system is shortened, and the heat conduction efficiency also directly influences the heating effect.
At present, partial research is also carried out on a heating pipeline with corrosion resistance, scale prevention, wear resistance and high heat conduction efficiency. Like chinese utility model patent CN 204805750U adopts to be provided with a plurality of steel ball intermediate layers in the main part pipe wall to fill the conduction oil, this design has better high temperature resistant, heat-conduction efficient, but preparation technology is complicated, and steel ball and silicon oil have still increased the tubular product quality.
Therefore, in order to improve the corrosion resistance, scale prevention, wear resistance and heat conduction efficiency of the PE pipe, a new simple technical scheme needs to be provided.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe which is simple in preparation process and light in weight.
In order to achieve the purpose, the invention adopts the technical scheme that: the invention provides a high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe which has a structure with 5 layers and sequentially comprises a PE inner pipe scale-resistant layer, a first hot melt adhesive layer, an EVOH oxygen-resistant layer, a second hot melt adhesive layer and a PE outer pipe high-thermal-conductivity wear-resistant layer from inside to outside, wherein the preparation material of the PE inner pipe scale-resistant layer comprises polyethylene and a fluorine-silicon material, and the preparation material of the PE outer pipe high-thermal-conductivity wear-resistant layer comprises polyethylene, graphite oxide, nano silicon dioxide and a vinyl silane coupling agent. The EVOH oxygen barrier layer is tightly bonded with the PE inner pipe layer through the first hot melt adhesive layer and is tightly bonded with the PE outer pipe high-thermal-conductivity wear-resistant layer through the second hot melt adhesive layer. In the PE inner tube scale prevention layer, the hydrophobicity of the polyethylene is improved by adding a fluorine-silicon material, so that the water contact angle is increased, and scale formation is prevented. In the high-heat-conductivity wear-resistant layer of the PE outer pipe, graphite oxide has high heat conductivity coefficient; the nano silicon dioxide can improve the wear resistance of the high-heat-conduction wear-resistant layer of the PE outer pipe; the vinyl silane coupling agent can carry out surface treatment on graphite oxide and nano silicon dioxide, and improves the interface interaction of the graphite oxide and the nano silicon dioxide with the polymer matrix PE.
As a preferred embodiment of the composite pipe of the present invention, in the preparation material of the scale prevention layer of the PE inner pipe, the weight ratio of the polyethylene to the fluorosilicone material is polyethylene: the fluorine-silicon material is 100: 2-5.
As a preferred embodiment of the composite pipe of the present invention, in the material for preparing the high thermal conductivity wear-resistant layer of the PE outer pipe, the weight ratio of polyethylene, graphite oxide, nano silica and vinyl silane coupling agent is: and (3) graphite oxide: nano silicon dioxide: the vinyl silane coupling agent is 100:3-10:3-8: 0.3-0.6.
As a preferred embodiment of the composite pipe, the material for preparing the high thermal conductivity wear-resistant layer of the PE outer pipe further comprises a processing aid. The processing aid can promote graphite oxide and nano silicon dioxide to be better dispersed in a polyethylene matrix, so that a better surface modification effect is achieved, and a product has better performance; the processing aid may also be a composite processing aid. As a more preferable embodiment of the composite pipe of the present invention, in the material for preparing the high thermal conductivity wear-resistant layer of the PE outer pipe, the weight ratio of polyethylene, graphite oxide, nano silica, vinyl silane coupling agent and processing aid is polyethylene: and (3) graphite oxide: nano silicon dioxide: vinyl silane coupling agent: the processing aid is 100:3-10:3-8:0.3-0.6: 0.5-2.
As a preferred embodiment of the composite tube of the present invention, the fluorosilicone material is heptadecafluorodecyltrimethoxysilane.
As a preferred embodiment of the composite tube of the present invention, the first hot melt adhesive layer and the second hot melt adhesive layer are made of ethylene-vinyl acetate copolymer resin (i.e. EVA 150).
As a preferred embodiment of the composite pipe of the present invention, the vinyl silane coupling agent is vinyl tris (β -methoxyethoxy) silane (i.e., A-172).
As a preferable embodiment of the composite pipe of the invention, the thickness of the scale prevention layer of the PE inner pipe is 0.15-0.25mm, and the thickness of the first hot melt adhesive layer, the thickness of the second hot melt adhesive layer and the thickness of the EVOH oxygen barrier layer are all 0.09-0.11 mm.
In a preferred embodiment of the composite pipe of the present invention, the thickness of the scale prevention layer of the PE inner pipe is 0.2mm, and the thicknesses of the first hot melt adhesive layer, the second hot melt adhesive layer and the EVOH oxygen barrier layer are all 0.1 mm.
Compared with the prior art, the invention has the following advantages and beneficial effects: according to the invention, the PE inner pipe scale prevention layer, the first hot melt adhesive layer, the EVOH oxygen resistance layer, the second hot melt adhesive layer and the PE outer pipe high-heat-conductivity wear-resistant layer are combined to form the five-layer composite pipe with the composite structure, so that the composite pipe has good corrosion resistance, scale prevention and wear resistance, the heat conduction efficiency is greatly improved, the weight is light, and the preparation is simple.
Drawings
FIG. 1 is a schematic structural view of a high thermal conductivity oxygen-resistant anti-scaling wear-resistant composite pipe according to the present invention;
the notation in the figure is: 1-PE inner pipe scale prevention layer; 2-a first hot melt adhesive layer; 3-EVOH oxygen barrier layer; 4-a second hot melt adhesive layer; 5-PE outer pipe high heat conduction wear-resistant layer.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples.
Example 1
The high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe has an outer diameter of 20mm, a schematic structural diagram is shown in fig. 1, the high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe has 5 layers of structures, namely a PE inner pipe scale-resistant layer 1, a first hot melt adhesive layer 2, an EVOH oxygen-resistant layer 3, a second hot melt adhesive layer 4 and a PE outer pipe high-thermal-conductivity wear-resistant layer 5 from inside to outside, wherein the thickness of the PE inner pipe scale-resistant layer 1 is 0.2mm, and the PE inner pipe scale-resistant layer is made of the following materials in parts by weight: 100 parts of polyethylene and 2 parts of heptadecafluorodecyltrimethoxysilane; the thickness of the first hot melt adhesive layer 2 and the thickness of the second hot melt adhesive layer 4 are both 0.1mm, and the preparation materials are both EVA 150; the thickness of the EVOH oxygen barrier layer 3 is 0.1 mm; the thickness of the PE outer pipe high-heat-conductivity wear-resistant layer 5 is 2.0mm, and the PE outer pipe high-heat-conductivity wear-resistant layer is made of the following materials in parts by weight: 100 parts of polyethylene, 5 parts of graphite oxide, 3 parts of nano silicon dioxide, A-1720.3 parts and 1 part of processing aid.
Example 2
The high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe has an outer diameter of 20mm, a schematic structural diagram is shown in fig. 1, the high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe has 5 layers of structures, namely a PE inner pipe scale-resistant layer 1, a first hot melt adhesive layer 2, an EVOH oxygen-resistant layer 3, a second hot melt adhesive layer 4 and a PE outer pipe high-thermal-conductivity wear-resistant layer 5 from inside to outside, wherein the thickness of the PE inner pipe scale-resistant layer 1 is 0.2mm, and the PE inner pipe scale-resistant layer is made of the following materials in parts by weight: 100 parts of polyethylene and 4 parts of heptadecafluorodecyltrimethoxysilane; the thickness of the first hot melt adhesive layer 2 and the thickness of the second hot melt adhesive layer 4 are both 0.1mm, and the preparation materials are both EVA 150; the thickness of the EVOH oxygen barrier layer 3 is 0.1 mm; the thickness of the PE outer pipe high-heat-conductivity wear-resistant layer 5 is 2.0mm, and the PE outer pipe high-heat-conductivity wear-resistant layer is made of the following materials in parts by weight: 100 parts of polyethylene, 10 parts of graphite oxide, 5 parts of nano silicon dioxide, A-1720.3 parts and 1 part of processing aid.
Example 3
The high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe has an outer diameter of 20mm, a schematic structural diagram is shown in fig. 1, the high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe has 5 layers of structures, namely a PE inner pipe scale-resistant layer 1, a first hot melt adhesive layer 2, an EVOH oxygen-resistant layer 3, a second hot melt adhesive layer 4 and a PE outer pipe high-thermal-conductivity wear-resistant layer 5 from inside to outside, wherein the thickness of the PE inner pipe scale-resistant layer 1 is 0.2mm, and the PE inner pipe scale-resistant layer is made of the following materials in parts by weight: 100 parts of polyethylene and 5 parts of heptadecafluorodecyltrimethoxysilane; the thickness of the first hot melt adhesive layer 2 and the thickness of the second hot melt adhesive layer 4 are both 0.1mm, and the preparation materials are both EVA 150; the thickness of the EVOH oxygen barrier layer 3 is 0.1 mm; the thickness of the PE outer pipe high-heat-conductivity wear-resistant layer 5 is 2.0mm, and the PE outer pipe high-heat-conductivity wear-resistant layer is made of the following materials in parts by weight: 100 parts of polyethylene, 10 parts of graphite oxide, 5 parts of nano silicon dioxide, A-1720.3 parts and 1 part of processing aid.
Example 4
The high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe has an outer diameter of 20mm, a schematic structural diagram is shown in fig. 1, the high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe has 5 layers of structures, namely a PE inner pipe scale-resistant layer 1, a first hot melt adhesive layer 2, an EVOH oxygen-resistant layer 3, a second hot melt adhesive layer 4 and a PE outer pipe high-thermal-conductivity wear-resistant layer 5 from inside to outside, wherein the thickness of the PE inner pipe scale-resistant layer 1 is 0.2mm, and the PE inner pipe scale-resistant layer is made of the following materials in parts by weight: 100 parts of polyethylene and 4 parts of heptadecafluorodecyltrimethoxysilane; the thickness of the first hot melt adhesive layer 2 and the thickness of the second hot melt adhesive layer 4 are both 0.1mm, and the preparation materials are both EVA 150; the thickness of the EVOH oxygen barrier layer 3 is 0.1 mm; the thickness of the PE outer pipe high-heat-conductivity wear-resistant layer 5 is 2.0mm, and the PE outer pipe high-heat-conductivity wear-resistant layer is made of the following materials in parts by weight: 100 parts of polyethylene, 3 parts of graphite oxide, 5 parts of nano silicon dioxide, A-1720.3 parts and 1 part of processing aid.
Example 5
The high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe has an outer diameter of 20mm, a schematic structural diagram is shown in fig. 1, the high-thermal-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe has 5 layers of structures, namely a PE inner pipe scale-resistant layer 1, a first hot melt adhesive layer 2, an EVOH oxygen-resistant layer 3, a second hot melt adhesive layer 4 and a PE outer pipe high-thermal-conductivity wear-resistant layer 5 from inside to outside, wherein the thickness of the PE inner pipe scale-resistant layer 1 is 0.2mm, and the PE inner pipe scale-resistant layer is made of the following materials in parts by weight: 100 parts of polyethylene and 4 parts of heptadecafluorodecyltrimethoxysilane; the thickness of the first hot melt adhesive layer 2 and the thickness of the second hot melt adhesive layer 4 are both 0.1mm, and the preparation materials are both EVA 150; the thickness of the EVOH oxygen barrier layer 3 is 0.1 mm; the thickness of the PE outer pipe high-heat-conductivity wear-resistant layer 5 is 2.0mm, and the PE outer pipe high-heat-conductivity wear-resistant layer is made of the following materials in parts by weight: 100 parts of polyethylene, 10 parts of graphite oxide, 8 parts of nano silicon dioxide, A-1720.3 parts and 1 part of processing aid.
Comparative example
The comparative example is a PE pipe for water supply, and the outer diameter is 20mm, and the wall thickness is 2.5 mm.
Examples of effects
The pipes of examples 1 to 10 and of the comparative example were subjected to performance tests, each according to the following criteria: (1) hydrostatic pressure of the pipe: GB/T6111-2003; (2) longitudinal shrinkage of the pipe: GB/T6671-2001; (3) oxygen permeability of the pipe: ISO 17455; (4) water contact angle of inner wall of pipe: GB/T30693-; (5) the heat conductivity coefficient of the pipe is as follows: GBT 10297-2015; (6) wear loss of the pipe: GB/T1768-2006. The test results are shown in table 1.
TABLE 1 pipe Performance test results
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a high heat conduction hinders wear-resisting compound pipe of oxygen scale control which characterized in that, compound pipe has 5 layers of structures, is PE inner tube scale prevention layer, first hot melt adhesive layer, EVOH oxygen resistance layer, second hot melt adhesive layer and the high heat conduction wearing layer of PE outer tube from inside to outside in proper order, wherein the preparation material on PE inner tube scale prevention layer includes polyethylene and fluorine silicon material, the preparation material on PE outer tube high heat conduction wearing layer includes polyethylene, graphite oxide, nanometer silica and vinyl silane coupling agent.
2. The composite pipe according to claim 1, wherein in the preparation material of the PE inner pipe scale prevention layer, the weight ratio of the polyethylene to the fluorosilicone material is polyethylene: the fluorine-silicon material is 100: 2-5.
3. The composite pipe according to claim 1, wherein in the preparation material of the high thermal conductivity wear-resistant layer of the PE outer pipe, the weight ratio of polyethylene to graphite oxide to nano-silica to vinyl silane coupling agent is polyethylene: and (3) graphite oxide: nano silicon dioxide: the vinyl silane coupling agent is 100:3-10:3-8: 0.3-0.6.
4. The composite pipe of claim 3, wherein the preparation material of the high thermal conductivity wear-resistant layer of the PE outer pipe further comprises a processing aid.
5. The composite tube of claim 4, wherein the weight ratio of the polyethylene, graphite oxide, nano-silica, vinylsilane coupling agent, and processing aid is polyethylene: and (3) graphite oxide: nano silicon dioxide: vinyl silane coupling agent: the processing aid is 100:3-10:3-8:0.3-0.6: 0.5-2.
6. The composite tube of claim 1, wherein the fluorosilicone material is heptadecafluorodecyltrimethoxysilane.
7. The composite tube of claim 1, wherein the first and second layers of hot melt adhesive are made of ethylene-vinyl acetate copolymer resin.
8. The composite tube of claim 1 wherein the vinyl silane coupling agent is vinyl tris (β -methoxyethoxy) silane.
9. The composite pipe according to claim 1, wherein the PE inner pipe scale prevention layer has a thickness of 0.15-0.25mm, and the first hot melt adhesive layer, the second hot melt adhesive layer, and the EVOH oxygen barrier layer each have a thickness of 0.09-0.11 mm.
10. The composite tube according to claim 9, wherein the PE inner tube scale prevention layer has a thickness of 0.2mm, and the first hot melt adhesive layer, the second hot melt adhesive layer, and the EVOH oxygen barrier layer each have a thickness of 0.1 mm.
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| CN201911064460.XA CN110886909A (en) | 2019-11-01 | 2019-11-01 | High-heat-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe |
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| CN201911064460.XA CN110886909A (en) | 2019-11-01 | 2019-11-01 | High-heat-conductivity oxygen-resistant anti-scaling wear-resistant composite pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111421932A (en) * | 2020-04-21 | 2020-07-17 | 天津市伟星新型建材有限公司 | Anti-scaling plastic pipe with far infrared radiation function and preparation method thereof |
| CN113357446A (en) * | 2021-06-01 | 2021-09-07 | 天津市伟星新型建材有限公司 | Self-cleaning floor heating pipeline and preparation method thereof |
| CN115304845A (en) * | 2022-07-27 | 2022-11-08 | 日丰企业(天津)有限公司 | Scale prevention layer, PE-RT (polyethylene-reverse transcription) floor heating pipe and application thereof |
| CN118110847A (en) * | 2024-04-12 | 2024-05-31 | 广东东方管业股份有限公司 | Multilayer steel wire winding modified polyethylene wear-resistant composite pipe |
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| CN113357446B (en) * | 2021-06-01 | 2023-09-29 | 天津市伟星新型建材有限公司 | A self-cleaning floor heating pipe and its preparation method |
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