CN205824387U - A kind of cross-linked polyolefin high-temperature resistant composite thermal insulating tube - Google Patents
A kind of cross-linked polyolefin high-temperature resistant composite thermal insulating tube Download PDFInfo
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- CN205824387U CN205824387U CN201620721450.4U CN201620721450U CN205824387U CN 205824387 U CN205824387 U CN 205824387U CN 201620721450 U CN201620721450 U CN 201620721450U CN 205824387 U CN205824387 U CN 205824387U
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- linked polyolefin
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Abstract
This utility model relates to a kind of cross-linked polyolefin high-temperature resistant composite thermal insulating tube, and including outer layer super high molecular weight modified poly ethylene layer film pipe, tundish covering layer fire-retardant heat insulation layer, internal layer is cross-linked polyolefin high-temperature-resistant layer instrumentation tubes.This utility model a kind of cross-linked polyolefin had the beneficial effect that internal layer of high-temperature resistant composite thermal insulating tube material uses crosslinked polyolefin layer to have superpower thermostability；Intermediate layer integument fire-retardant heat insulation spongy layer has heat insulating ability, fire-retardant effect；Outer layer uses modified ultra-high molecular weight polyethylene, increases substantially the wearability of common polythene and resistance to photodissociation.The maximum feature of tubing of the present utility model be high temperature resistant, insulation, ageing-resistant, wear-resistant, corrosion-resistant, be a kind of lightweight environmental protection novel tube.
Description
Technical field
This utility model belongs to tubing field, relates to polyvinyl piping materials, is a kind of cross-linked polyolefin refractory composite heat insulating
Tubing.
Background technology
At present, polyvinyl piping materials has become after PVC, the plastic conduit kind that consumption figure is second largest in the world, extensively
Engineering and oil field, chemical industry and the post and telecommunications such as water supply, agricultural irrigation, fuel gas transmission, blowdown, floor heating, mine mortar conveying
In field.Along with technological progress, the performance requirement of polyethylene pipe is increased, such as: chemical pipeline is to anticorrosion by a lot of occasions
Performance requirement is gradually increased, and also requires that pipeline pressure and is gradually increased；The pressure class requirement of pipeline is increased by coal mine pipeline, right
The requirement of pumped (conveying) medium complexity and require to increase to security performance；Petroleum pipeline is to the requirement in crude oil pipeline life-span, to pipe
The requirement of road corrosion resistance and coefficient of pipe friction requirement etc. is proposed higher requirement, in the urgent need to a kind of performance more
Add useful pipeline.Traditional concrete duct can in use between for a long time after cause serious environmental pollution, steel pipe can produce
When consume substantial amounts of energy and discharge a large amount of Tail Gas.Therefore, a kind of green, energy-conservation novel tube are following cities
A kind of novel tube meeting the strategy of sustainable development that field is badly in need of, the developing for plastic pipe is driven newly by such trend
Article.Heat resistant poly alkene is more and more extensively recognized in the combination property that aspect hot, electric, mechanical, chemical is excellent, is described as
Superengineering plastics, is become equal to high-tech sectors such as aviation, navigation, space flight with fiber, composite and moulding
Merit is applied.
In plastic applications, the polyolefin polymer major way of application is by polyolefinic crosslinking, organic high with other
Molecular material is compared, and the crosslinking superpower polyolefin of tri compound macromolecule has more unique molecular structure and thermal behavior, it
Molecule is made up of rigid rod macromolecular chain, and strand draw ratio is big, and this special Phase stracture of cross-linked polyolefin causes it
Have the feature that high strength and modulus mechanical performance is prominent, thermostability is high, anti-flammability is splendid, friction wear is excellent, line is swollen
The advantages such as coefficient is little, dimensionally stable is high, barrier property is free from worldly cares, weatherability radiation resistance is good, chemical resistance is prominent.Sponge has
Having the heat insulating ability of excellence, have excellent lightweighting materials simultaneously, the application of Wood Fiber Composite thing adds the plasticity of sponge.As
Thermostability tri compound superhigh intensity high-molecular polythene tubing research and development result can be put goods on the market by fruit, increases again a set of lightweight
Heat-insulation system, this will be the novel green product of a kind of high demand, also can save the consumption of raw materials of product greatly simultaneously.This
The insulating tube of application research and development will be in energy-saving building technology and the Related product great important meaning of volatilization.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of high temperature resistant compound guarantor of cross-linked polyolefin
Temperature tubing, it utilizes the high-fire resistance of the crosslinking superpower polyolefin of tri compound macromolecule (PEXA), wood fiber mixture (sponge)
Heat insulating ability, it is achieved a kind of high temperature resistant tubing with heat-insulating property, the Application of composite of modified ultra-high molecular weight polyethylene simultaneously
The wearability of tubing, durability, crushing resistance are greatly improved, are a kind of greenization, light-weighted novel renewable energy pipe
Material product.
The technical scheme that this utility model realizes purpose is as follows:
A kind of cross-linked polyolefin high-temperature resistant composite thermal insulating tube, tubing is three layers of co-extrusion interior, domestic and abroad, and outer layer is that superelevation is divided
Son amount modified poly ethylene layer film tube layer, intermediate layer mixes for the spongy layer that hard bubbles with wood fiber layer, and internal layer is that cross-linked polyolefin is resistance to
High temperature PEXA layer.
And, described internal layer is multiple pipes of spaced and parallel setting.
And, described outer layer be super high molecular weight modified poly ethylene layer be UHMWPE add modifying agent wearing layer,
Modifying agent is a certain amount of LDPE, calcium carbonate, alkali-free glass fibre.
And, described intermediate layer is the spongy layer that hard bubbles, the material of the spongy layer that hard bubbles be polyethylene, isocyanates, polynary ether,
Polyhydric alcohol, freon one or more, the sea of hard bubbling that after uniformly mixing adds wood fiber 3mm-6mm wherein, extrusion obtains
Continuous.
And, described internal layer cross-linked polyolefin high temperature resistant PEXA layer is by high density polyethylene (HDPE), linear low density polyethylene, super
High molecular weight polyethylene, crosslinked polytetrafluoroethylpowder form, and add modifying agent such as cross-linking agent, coupling agent.
The beneficial effects of the utility model are:
1, the cross-linked polyolefin high-temperature resistant composite thermal insulating tube that the application provides has high-fire resistance, high resistance to pressure and high corrosion resistant
Erosion property, has heat insulating ability simultaneously, reduces loss during heat conveying, can substitute the not enough plastic aluminum pipe of heat insulating ability and copper pipe,
Product is a kind of lightweight product simultaneously, easy construction.
2, the cross-linked polyolefin high-temperature resistant composite thermal insulating tube life-span length (lower 20 years of work continuously) that this utility model provides, be
A kind of environment protecting and power-saving product.
Accompanying drawing explanation
Fig. 1 is cross-linked polyolefin high-temperature resistant composite thermal insulating tube structural representation；Wherein: 1. super high molecular weight modified poly ethylene
Layer, the 2. wood fiber, 3. hard bubble spongy layer, 4. crosslinked polyolefin layer.
Fig. 2 is another kind of cross-linked polyolefin high-temperature resistant composite thermal insulating tube structural representation.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings and by specific embodiment, and following example are simply retouched
The property stated, be not determinate, it is impossible to limit protection domain of the present utility model with this.
A kind of cross-linked polyolefin high-temperature resistant composite thermal insulating tube, including three layers of inside and outside coaxial co-extrusion, wherein, outer layer 1 is super
High molecular modified poly ethylene layer film tube layer, intermediate layer 3 is fire-retardant heat insulation layer, and material mixes for the spongy layer that hard bubbles with the wood fiber
2, internal layer 4 is cross-linked polyolefin high-temperature-resistant layer (PEXA) work tube layer, and instrumentation tubes can divide spaced and parallel setting many according to demand
Root, uses three-layer co-extruded forming.
Described outer layer be super high molecular weight modified poly ethylene layer be UHMWPE add modifying agent wearing layer, modifying agent
For a certain amount of LDPE, calcium carbonate, alkali-free glass fibre.
The fire-retardant heat insulation layer in described intermediate layer is the spongy layer that hard bubbles, the material of the spongy layer that hard bubbles be polyethylene, isocyanates,
Polynary ether, polyhydric alcohol, freon one or more, uniformly mixing adds the wood fiber (3mm-6mm) and extrudes afterwards and obtain wherein
Sponge of hard bubbling.
Described internal layer is cross-linked polyolefin high-temperature-resistant layer (PEXA), by high density polyethylene (HDPE), linear low density polyethylene, surpasses
High molecular weight polyethylene, crosslinked polytetrafluoroethylpowder form, and add modifying agent such as cross-linking agent, coupling agent.
The preparation method of aforementioned tubes is:
Tubing multi-layer extrusion machine at tradition internal layer arranges infrared radiometer, microwave is allowed to produce polyolefine material crosslinking,
It is many that the insulating sponge of intermediate layer solid state is sponge extruder, outer hdpe layer extruder runs simultaneously common extrusion
Layer tubing.
Claims (5)
1. a cross-linked polyolefin high-temperature resistant composite thermal insulating tube, tubing is three layers of co-extrusion interior, domestic and abroad, it is characterised in that: outer layer
For super high molecular weight modified poly ethylene layer film tube layer, intermediate layer is for spongy layer mixing of hard bubbling with wood fiber layer, and internal layer is crosslinking
Polyolefin is high temperature resistant PEXA layer.
Cross-linked polyolefin high-temperature resistant composite thermal insulating tube the most according to claim 1, it is characterised in that: described internal layer is interval
The multiple pipes be arrangeding in parallel.
Cross-linked polyolefin high-temperature resistant composite thermal insulating tube the most according to claim 1, it is characterised in that: described outer layer is superelevation
Molecular weight modified polyethylene layer is the wearing layer that UHMWPE adds modifying agent, and modifying agent is a certain amount of LDPE, calcium carbonate,
Alkali-free glass fibre.
Cross-linked polyolefin high-temperature resistant composite thermal insulating tube the most according to claim 1, it is characterised in that: described intermediate layer is hard
Bubble spongy layer, the material of the spongy layer that hard bubbles be polyethylene, isocyanates, polynary ether, polyhydric alcohol, freon one or more,
The sponge of hard bubbling that after uniformly mixing adds wood fiber 3mm-6mm wherein, extrusion obtains.
Cross-linked polyolefin high-temperature resistant composite thermal insulating tube the most according to claim 1, it is characterised in that: the crosslinking of described internal layer is poly-
Alkene is high temperature resistant, and PEXA layer is handed over by high density polyethylene (HDPE), linear low density polyethylene, ultra-high molecular weight polyethylene, politef
Connection forms, and adds modifying agent such as cross-linking agent, coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721450.4U CN205824387U (en) | 2016-07-11 | 2016-07-11 | A kind of cross-linked polyolefin high-temperature resistant composite thermal insulating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721450.4U CN205824387U (en) | 2016-07-11 | 2016-07-11 | A kind of cross-linked polyolefin high-temperature resistant composite thermal insulating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824387U true CN205824387U (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620721450.4U Active CN205824387U (en) | 2016-07-11 | 2016-07-11 | A kind of cross-linked polyolefin high-temperature resistant composite thermal insulating tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237138A (en) * | 2018-09-17 | 2019-01-18 | 宁波派谱新材料科技有限公司 | A kind of compound pipeline complex pipeline |
-
2016
- 2016-07-11 CN CN201620721450.4U patent/CN205824387U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237138A (en) * | 2018-09-17 | 2019-01-18 | 宁波派谱新材料科技有限公司 | A kind of compound pipeline complex pipeline |
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