CN208431514U - A kind of continuous multilayer composite insulating pipe material - Google Patents
A kind of continuous multilayer composite insulating pipe material Download PDFInfo
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- CN208431514U CN208431514U CN201820831964.4U CN201820831964U CN208431514U CN 208431514 U CN208431514 U CN 208431514U CN 201820831964 U CN201820831964 U CN 201820831964U CN 208431514 U CN208431514 U CN 208431514U
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- polystyrene
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Abstract
A kind of continuous multilayer composite insulating pipe material belongs to building interior conduit heat preservation technology field.It is characterized by: ecto-entad successively includes protective layer (3), foamed polystyrene layer (1) and instrumentation tubes (4), the protective layer (3) and foamed polystyrene layer (1) coextrusion mold passes through adhesive layer (5) bonding of filling between the foamed polystyrene layer (1) and instrumentation tubes (4)；The thickness ratio of the wall thickness of the wall thickness and protective layer (3) of the foamed polystyrene layer (1) is 5 ~ 30:1.The utility model is while improving intensity and service life, moreover it is possible to provide better hygienic conditions and heat-resistant oxidized performance, conveying hot water is particularly suited for, as heat supply pipeline.
Description
Technical field
A kind of continuous multilayer composite insulating pipe material belongs to building interior conduit heat preservation technology field.
Background technique
The heat preservation of heat supply pipeline mainly uses polyurethane material to be kept the temperature at present, as used in current polyurethane foam
Foaming agent is mainly fluorochlorohydrocarbon class, has destruction to ozone layer, and countries in the world are used in limitation at present.Polyurethane material
Can also there be the isocyanates residue being harmful to the human body in foaming process, and foamed material can not recycle, and cause
Environmental pollution.Polyurethane material cost is simultaneously with higher, and bubbling efficiency is lower, causes pipe insulation at high cost.
Utility model content
Technical problem to be solved by the utility model is: overcoming the deficiencies of the prior art and provide a kind of environmental-friendly, preparation
Convenient continuous multilayer composite insulating pipe material.
Solving technical solution used by its technical problem is: the continuous multilayer composite insulating pipe material, it is characterised in that: by
It outside to inside successively include protective layer, foamed polystyrene layer and instrumentation tubes, the protective layer and foamed polystyrene layer co-extrusion
Molding, the thickness ratio of the wall thickness of the wall thickness and protective layer of the foamed polystyrene layer inner tube are 5 ~ 30:1.
The utility model be directed to presently, there are main problem and pipe insulation requirement, the utility model is to foam
Polystyrene is thermal insulation material, and extrusion grade polyethylene and ethylene-vinyl acetate copolymer (EVA) blend are adhesive layer.Significantly
The caking property between protective layer and insulating layer is improved, the intensity of tubing is also higher.Instrumentation tubes are added in insulating layer, using anti-
Layer protective layer, foamed polystyrene layer realize protection and heat preservation, while improving intensity and service life, moreover it is possible to provide more preferable
Hygienic conditions and heat-resistant oxidized performance, be particularly suited for conveying hot water, as heat supply pipeline.
Preferably, the material of the foamed polystyrene layer is Polystyrene heat insulation material or high impact polystyrene material
Material.The material of foamed polystyrene layer is CO2Expanded polystyrene (EPS) thermal insulation material or CO2Foam high impact polystyrene material.This
Utility model is with CO2As primary blowing agent, the destruction of fluorochlorohydrocarbon class, alkanes foaming agent to environment is avoided.Select highly resistance
Rushing polystyrene (HIPS) or polystyrene is foamed material, is conducive to the matching with follow-up work pipe.
Preferably, the material of the protective layer is polyethylene, polypropylene or polyvinyl chloride.
Preferably, the protective layer with a thickness of 0.1mm ~ 6mm.Good protection can either be played under the thickness to make
With, and dosage can be saved as far as possible.
Preferably, the protective layer and foamed polystyrene layer centre co-extrusion have layer of polyethylene and ethyl vinyl acetate second
Alkene copolymer protective layer.The material of protective layer is PE, PVC or PP.The protective layer of one layer with internal layer protective layer different materials is added,
The toughness of three is mutually coordinated with intensity, the durability of tubing is more preferable, and adaptive capacity to environment is stronger.
Preferably, the polyethylene is with ethylene-vinyl acetate copolymer protective layer with a thickness of 0.1 mm ~ 6.0mm.?
Good protective action can either be played under the thickness, and can save dosage as far as possible.
Preferably, the material of the instrumentation tubes is PE-RTII, PP-R, PB or PE-X.
Preferably, pass through the adhesive layer bonding of filling between the foamed polystyrene layer and instrumentation tubes.
Preferably, the material of the adhesive layer is one-component or multiple groups part foamed glue.
A kind of manufacturing method of above-mentioned continuous multilayer composite insulating pipe material, preparation step are as follows:
1) blend and nucleating agent that polystyrene or high impact polystyrene are blended with low density polyethylene (LDPE), anti-
Oxygen agent is uniformly mixed using high-speed mixer according to the ratio；
2) double screw extruder is added in the raw material mixed and carries out plastifying fusion, be then injected into the CO of supercriticality2、
The foaming agent of ethyl alcohol and water composition squeezes out, rapid pressure drop after melt outlet mould through tube forming mouth mold, core model, so that
CO2Gas forms abscess around nucleating agent, forms CO2Polystyrene heat-preservation layer is blended in foaming；
3) using co-extrusion machine in CO2Polystyrene heat-preservation layer outer surface co-extrusion layer of polyethylene and ethylene-vinegar is blended in foaming
Sour ethylene copolymer obtains ethylene-vinyl acetate copolymer adhesive layer；
4) using co-extrusion machine in CO2Polystyrene heat-preservation layer outer surface co-extrusion polyethylene (PE), polypropylene is blended in foaming
(PP), heat-proof polythene (PE-RT) obtains protective layer, then through cooling, draw to obtain the final product；
5) it by the lumen of instrumentation tubes insertion polystyrene heat-preservation layer, is filled between instrumentation tubes and polystyrene heat-preservation layer
One-component, multicomponent foamed glue, the two is bonded.
The utility model is by polystyrene (PS) or high impact polystyrene (HIPS) or polystyrene and nucleating agent, antioxygen
The components such as agent are uniformly mixed with special ratios using high-speed mixer, and the raw material mixed addition double screw extruder is moulded
Change melting, when the temperature of carbon dioxide is more than 31 DEG C, pressure is more than 7.38MPa, that is, enters supercritical carbon dioxide state.With
Special ratios inject the CO for the supercriticality to be formed2, ethyl alcohol, water foaming agent, make CO2Gas is evenly dispersed with supercriticality
Into resin, squeezed out through tube forming mouth mold, core model, rapid pressure drop after melt outlet mould, so that CO2Gas is in nucleating agent
Surrounding forms abscess, forms insulating foam layer.After being tentatively formed, using co-extrusion machine insulating layer outer surface co-extrusion polyethylene
With the adhesive layer of ethylene-vinyl acetate copolymer (EVA) blend.
Preferably, the tubing after ethylene-vinyl acetate copolymer protective layer is made recycles second co-extrusion after the cooling period
Machine co-extrusion polyethylene obtains protective polyethylene layer.The online co-extrusion of two layers of outer jacket, disposal molding high production efficiency.
Compared with prior art, the possessed beneficial effect of the utility model is:
1, foaming layer inner tube uses CO2On the one hand supercritical fluid foamed material avoids fluorochlorohydrocarbon class, alkanes foaming
Destruction of the agent to environment, on the other hand, supercritical CO2The CO that foamed material uses2It extracts, is equal to logical from industrial waste gas
Cross CO2Recycle realize carbon compensation, for reduce greenhouse gas emission, realize low-carbon circular economy have important meaning
Justice.
2, it can be produced using continuous extrusion process, high production efficiency, properties of product are stablized.
3, selecting high impact polystyrene (HIPS) or polystyrene is foamed material, and cost is relatively low, and without to human body
Harmful isocyanates residue.
4, using extrusion grade polyethylene and ethylene-vinyl acetate copolymer (EVA) blend, significantly improve protective layer with
Caking property between insulating layer.
5, instrumentation tubes are added in insulating layer, realize protection and heat preservation using outer protective layer, foamed polystyrene layer,
While improving intensity and service life, moreover it is possible to better hygienic conditions and heat-resistant oxidized performance are provided, are particularly suited for defeated
Hot water is sent, as heat supply pipeline.
6, the online co-extrusion of two layers of outer jacket, disposal molding high production efficiency.
Detailed description of the invention
Fig. 1 is a kind of schematic cross-section of continuous multilayer composite insulating pipe material of the utility model.
Wherein, 1, foamed polystyrene layer 2, polyethylene and ethylene-vinyl acetate copolymer protective layer 3, protective layer 4,
Instrumentation tubes 5, adhesive layer.
Specific embodiment
The utility model is described further with reference to the accompanying drawing, wherein Fig. 1 is preferred forms.
Referring to attached drawing 1: a kind of continuous multilayer composite insulating pipe material of the utility model, ecto-entad are followed successively by polyethylene
Protective layer 3, polyethylene and ethylene-vinyl acetate copolymer protective layer 2, foamed polystyrene layer 1 and instrumentation tubes 4, polyethylene
With 1 coextrusion mold of ethylene-vinyl acetate copolymer protective layer 2 and foamed polystyrene layer, foamed polystyrene layer 1 and instrumentation tubes
It is bonded between 4 by the adhesive layer 5 of filling；The thickness ratio of the wall thickness of the wall thickness and polyethylene and protective layer 3 of foamed polystyrene layer 1
For 5 ~ 30:1；Protective layer 3 with a thickness of 0.1 mm ~ 6.0mm, the thickness of polyethylene and ethylene-vinyl acetate copolymer protective layer 2
For 0.5mm ~ 1.0mm；Wherein, the material of foamed polystyrene layer 1 is CO2Expanded polystyrene (EPS) thermal insulation material or CO2Foam highly resistance
Rush polystyrene material；The material of protective layer 3 is polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC；Polyethylene and second
Alkene-acetate ethylene copolymer protective layer 2 material is polyethylene and ethylene-vinyl acetate copolymer；The material of instrumentation tubes 4 is
PE-RTII, PP-R, PB or PE-X；The material of adhesive layer 5 is one-component, multicomponent foamed glue.
The utility model provide it is a kind of feasible the preparation method comprises the following steps:
1) it stocks up by weight: polystyrene or 90 parts of high impact polystyrene, 10 parts of low density polyethylene (LDPE), nucleating agent 5
Part, 2.5 parts of antioxidant, CO26.2 parts, ethyl alcohol: 2.5 parts, 2.5 parts of water；By polystyrene or high impact polystyrene and low-density
Polyethylene blend and nucleating agent, antioxidant are uniformly mixed using high-speed mixer according to the ratio；
2) double screw extruder is added in the raw material mixed and carries out plastifying fusion, be then injected into the CO of supercriticality2、
The foaming agent of ethyl alcohol and water composition squeezes out, rapid pressure drop after melt outlet mould through tube forming mouth mold, core model, so that
CO2Gas forms abscess around nucleating agent, forms CO2Polystyrene heat-preservation layer is blended in foaming；
3) it stocks up by weight: 70 parts of polyvinyl resin, 30 parts of ethylene-vinyl acetate copolymer, using co-extrusion machine in CO2
Polystyrene guarantor's insulating layer outer surface co-extrusion layer of polyethylene is blended in foaming and ethylene-vinyl acetate copolymer obtains ethylene-vinegar
Sour ethylene copolymer protective layer；Polyethylene is with ethylene-vinyl acetate copolymer protective layer with a thickness of 0.1 ~ 1.0mm；
4) second co-extrusion machine is recycled to obtain in polyethylene and co-extrusion polyethylene outside ethylene-vinyl acetate copolymer protective layer
To protective polyethylene layer, protective polyethylene layer with a thickness of 0.1 ~ 6.0 mm, then through cooling, draw to obtain the final product；
5) it by the lumen of instrumentation tubes insertion polystyrene heat-preservation layer, is filled between instrumentation tubes and polystyrene heat-preservation layer
The two is bonded by foamed glue.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is all without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Matter any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the guarantor of technical solutions of the utility model
Protect range.
Claims (9)
1. a kind of continuous multilayer composite insulating pipe material, it is characterised in that: ecto-entad successively includes protective layer (3), polystyrene
Foaming layer (1) and instrumentation tubes (4), the protective layer (3) and foamed polystyrene layer (1) coextrusion mold, the polyphenyl second
The thickness ratio of the wall thickness of the wall thickness and protective layer (3) of alkene foaming layer (1) is 5 ~ 30:1.
2. a kind of continuous multilayer composite insulating pipe material according to claim 1, it is characterised in that: the polystyrene hair
The material of alveolar layer (1) is Polystyrene heat insulation material or high impact polystyrene material.
3. a kind of continuous multilayer composite insulating pipe material according to claim 1, it is characterised in that: the protective layer (3)
Material be polyethylene, polypropylene or polyvinyl chloride.
4. a kind of continuous multilayer composite insulating pipe material according to claim 3, it is characterised in that: the protective layer (3)
With a thickness of 0.1mm ~ 6mm.
5. a kind of continuous multilayer composite insulating pipe material according to claim 1, it is characterised in that: the protective layer (3)
There are layer of polyethylene and ethylene-vinyl acetate copolymer protective layer (2) with the intermediate co-extrusion of foamed polystyrene layer (1).
6. a kind of continuous multilayer composite insulating pipe material according to claim 5, it is characterised in that: the polyethylene and second
Alkene-acetate ethylene copolymer protective layer (2) is with a thickness of 0.1 mm ~ 6.0mm.
7. a kind of continuous multilayer composite insulating pipe material according to claim 1, it is characterised in that: the instrumentation tubes (4)
Material be PE-RTII, PP-R, PB or PE-X.
8. a kind of continuous multilayer composite insulating pipe material according to claim 1, it is characterised in that: the polystyrene hair
Pass through adhesive layer (5) bonding of filling between alveolar layer (1) and instrumentation tubes (4).
9. a kind of continuous multilayer composite insulating pipe material according to claim 8, it is characterised in that: the adhesive layer (5)
Material be one-component or multiple groups part foamed glue.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820831964.4U CN208431514U (en) | 2018-05-31 | 2018-05-31 | A kind of continuous multilayer composite insulating pipe material |
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| CN201820831964.4U CN208431514U (en) | 2018-05-31 | 2018-05-31 | A kind of continuous multilayer composite insulating pipe material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513639A (en) * | 2021-07-22 | 2021-10-19 | 江苏德誉环保设备科技有限公司 | Method for manufacturing anti-freezing water supply pipeline for mist system |
| CN114573895A (en) * | 2021-11-26 | 2022-06-03 | 浙江中财管道科技股份有限公司 | Heat-insulation integrated heat-resistant polyethylene pipe and preparation method thereof |
-
2018
- 2018-05-31 CN CN201820831964.4U patent/CN208431514U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513639A (en) * | 2021-07-22 | 2021-10-19 | 江苏德誉环保设备科技有限公司 | Method for manufacturing anti-freezing water supply pipeline for mist system |
| CN114573895A (en) * | 2021-11-26 | 2022-06-03 | 浙江中财管道科技股份有限公司 | Heat-insulation integrated heat-resistant polyethylene pipe and preparation method thereof |
| CN114573895B (en) * | 2021-11-26 | 2023-08-29 | 浙江中财管道科技股份有限公司 | Heat-insulating integrated heat-resistant polyethylene pipe and preparation method thereof |
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