CN102705591A - Heat-resistant and pressure-resistant polyethylene composite pipe - Google Patents
Heat-resistant and pressure-resistant polyethylene composite pipe Download PDFInfo
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- CN102705591A CN102705591A CN2012102205863A CN201210220586A CN102705591A CN 102705591 A CN102705591 A CN 102705591A CN 2012102205863 A CN2012102205863 A CN 2012102205863A CN 201210220586 A CN201210220586 A CN 201210220586A CN 102705591 A CN102705591 A CN 102705591A
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- polyethylene resin
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Abstract
The invention relates to a heat-resistant and pressure-resistant polyethylene composite pipe consisting of three layers, wherein the inner layer is made from a heat-resistant PERTII polyethylene resin material, the outer layer is made from a high density polyethylene resin material, and the two layers are closely combined through an adhesive resin containing a polyolefin main chain and a polar branch chain. The heat-resistant and pressure-resistant polyethylene composite pipe provided by the invention fully utilizes the following properties of the heat-resistant PERTII polyethylene resin and has the advantages of average utilization temperature being 60 DEG C, mature production extrusion technique and high stress cracking resistance.
Description
The present invention relates to the production technology of polyvinyl piping materials, specifically go up to say it is a kind of preparation method of heat-resisting withstand voltage polyethylene composite pipe.
Background technique
At present; Because the good cracking resistance of hdpe pipe, low temperature resistant, health is nontoxic, resistant to chemical media corrosion and easy for installation and can adopt advantages such as trenchless technology, long service life, generally is used for fields such as building water supply, draining, building and heating, cities and towns plumbing, gas, colliery delivered downhole, electric power, telecommunication protection and industry, agricultural.But because itself material does not possess heat resistance, when carrying more than 45 ℃ medium, can the build-up of pressure reduction, bearing capacity significantly reduces, and causes its tubing to be used in medium transport fields such as middle high temperature and is restricted.
At present; Just partly solved its heat-resisting problem in known patented technology and the practical technique; All can heat-resisting problem that again can be withstand voltage less than well solving it, traditional solution only is to lean on the increase tube wall thickness to solve problems such as its bearing capacity is low, but the tubing cost is very high; Serious waste of resources uses dissemination little.
Summary of the invention
The objective of the invention is to overcome the existing technology defective, a kind of preparation method of heat-resisting withstand voltage polyethylene composite pipe is provided.
Technological scheme of the present invention is:
A kind of heat-resisting withstand voltage polyethylene composite pipe; Constitute by two-layer; Said composite pipe internal layer is heat-resisting PERT II type polyethylene resin material, and skin is the high-density polyethylene resin material, two-layer between through being that the resin of binding property of main chain, band polarity side chain is combined closely and formed with the polyolefin;
Said high-density polyethylene resin material is PE100 level or PE80 rank polyethylene resin;
Said adhering resin is to be a kind of resin of binding property of foundational development with EVA;
Above-mentioned used heat-resisting PERT II type polyethylene resin material is a kind of based on hervene copolymer high-performance mixed ingredients.
The present invention made full use of heat-resisting PERT II type polyethylene resin have average serviceability temperature up to 60 ℃, produce the characteristics extrude worker's technical maturity, to have high stress crack resistance performance; Pipeline through the present invention's preparation; Its use is safer; Make it have thinner wall thickness owing to have higher minimum desired strength (MRS), cost reduces significantly.It is high that the present invention has made full use of the hdpe pipe voltage endurance capability; Characteristics such as cost of production is low, the withstand voltage polyethylene composite pipe of heat resistance after compound are compared with traditional P ERT tubing and can be saved 20%～30% tubing cost under same size pressure; Compare with the PP-R pipeline and can save 30%～40% cost; And bearing capacity is higher, carries the thermal medium field to substitute steel pipe fully in heavy caliber heating or band pressure, and tubing has more economic advantages.
Embodiment:
Heat resistance PERT II type polyethylene resin is extruded sizing through extruder do the tubing internal layer; Internal layer evenly applies one deck EVA type binding resin by the glue-line extruder on PERT II type polyvinyl plastic core pipe after extruding the traction cooling; By another extruder PE100 rank high-density polyethylene resin and additive extruding and moulding are evenly wrapped outside glue-line (EVA) then and do skin; With internal layer and outer permanent bonding together, three layers of composite pipe that is total to after the agent are processed tubing through sizing, secondary cooling through adhering resin.
Embodiment of the present invention is not limited to the mode that the foregoing description provides.
Claims (5)
1. heat-resisting withstand voltage polyethylene composite pipe; Constitute by three layers; Internal layer is heat-resisting PERT II type polyethylene resin material, and skin is the high-density polyethylene resin material, two-layer between through being that the resin of binding property of main chain, band polarity side chain is combined closely and formed with the polyolefin.
2. according to the described a kind of heat-resisting withstand voltage polyethylene composite pipe of claim 1, it is characterized in that: said high-density polyethylene resin material is PE100 level or PE80 rank polyethylene resin.
3. according to the described a kind of heat-resisting withstand voltage polyethylene composite pipe of claim 1, it is characterized in that: said adhering resin is to be a kind of resin of binding property of foundational development with EVA.
4. according to the described a kind of heat-resisting withstand voltage polyethylene composite pipe of claim 1, it is characterized in that: above-mentioned used heat-resisting PERT II type polyethylene resin material is a kind of based on hervene copolymer high-performance mixed ingredients.
5. according to the described a kind of heat-resisting withstand voltage polyethylene composite pipe of claim 1; Its preparation method is: heat-resisting PERT II type polyethylene resin is extruded sizing through extruder do the tubing internal layer; Internal layer evenly applies one deck EVA type binding resin via the glue-line extruder; Then by another extruder with the extruding and moulding of PE100 rank high-density polyethylene resin, it is evenly wrapped outside glue-line, does skin, three layers altogether the composite pipes after the agent be finished product through sizing, secondaries cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210220586.3A CN102705591B (en) | 2012-06-29 | 2012-06-29 | Heat-resistant and pressure-resistant polyethylene composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210220586.3A CN102705591B (en) | 2012-06-29 | 2012-06-29 | Heat-resistant and pressure-resistant polyethylene composite pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102705591A true CN102705591A (en) | 2012-10-03 |
| CN102705591B CN102705591B (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210220586.3A Active CN102705591B (en) | 2012-06-29 | 2012-06-29 | Heat-resistant and pressure-resistant polyethylene composite pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN102705591B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523810A (en) * | 2015-09-14 | 2017-03-22 | 中国人民解放军总后勤部油料研究所 | Multi-layer composite fuel oil delivery pipe |
| CN109591267A (en) * | 2018-12-13 | 2019-04-09 | 宁夏青龙塑料管材有限公司 | A kind of three layers of compound XPS prefabricated thermal insulation heat supply plastic pipe preparation method |
| CN110789093A (en) * | 2019-10-31 | 2020-02-14 | 杜永明 | Method for manufacturing polyethylene composite pipe |
| CN110815767A (en) * | 2019-11-19 | 2020-02-21 | 杜永明 | Manufacturing method of heat-resistant polyethylene composite pipe |
| CN112325001A (en) * | 2020-10-29 | 2021-02-05 | 安徽杰蓝特新材料有限公司 | Reinforced wear-resistant PE water supply pipe for trenchless construction and preparation method thereof |
| CN112648445A (en) * | 2020-12-21 | 2021-04-13 | 安徽杰蓝特新材料有限公司 | Reinforced wear-resistant PE water supply pipe and preparation method thereof |
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| CN201875292U (en) * | 2010-10-16 | 2011-06-22 | 青岛亚桑机械有限公司 | Multi-course composite plastic heating tubular product |
| CN102128317A (en) * | 2011-03-15 | 2011-07-20 | 广东联塑科技实业有限公司 | PE-RT wiremesh framework composite pipe and preparation method and application thereof |
| CN102501410A (en) * | 2011-10-21 | 2012-06-20 | 浙江师范大学 | Preparation method for flame-retardant and antistatic pipeline with high strength |
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2012
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Patent Citations (5)
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| KR20110034979A (en) * | 2009-09-29 | 2011-04-06 | 보성포리테크 주식회사 | High temperature pipe |
| CN201875292U (en) * | 2010-10-16 | 2011-06-22 | 青岛亚桑机械有限公司 | Multi-course composite plastic heating tubular product |
| CN201851796U (en) * | 2010-11-26 | 2011-06-01 | 程新显 | Polypropylene and polyethylene composite pipe |
| CN102128317A (en) * | 2011-03-15 | 2011-07-20 | 广东联塑科技实业有限公司 | PE-RT wiremesh framework composite pipe and preparation method and application thereof |
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Non-Patent Citations (2)
| Title |
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| 张振英: "《塑料加工入门丛书》", 31 March 2000, 《浙江科学技术出版社》 * |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523810A (en) * | 2015-09-14 | 2017-03-22 | 中国人民解放军总后勤部油料研究所 | Multi-layer composite fuel oil delivery pipe |
| CN109591267A (en) * | 2018-12-13 | 2019-04-09 | 宁夏青龙塑料管材有限公司 | A kind of three layers of compound XPS prefabricated thermal insulation heat supply plastic pipe preparation method |
| CN110789093A (en) * | 2019-10-31 | 2020-02-14 | 杜永明 | Method for manufacturing polyethylene composite pipe |
| CN110815767A (en) * | 2019-11-19 | 2020-02-21 | 杜永明 | Manufacturing method of heat-resistant polyethylene composite pipe |
| CN112325001A (en) * | 2020-10-29 | 2021-02-05 | 安徽杰蓝特新材料有限公司 | Reinforced wear-resistant PE water supply pipe for trenchless construction and preparation method thereof |
| CN112648445A (en) * | 2020-12-21 | 2021-04-13 | 安徽杰蓝特新材料有限公司 | Reinforced wear-resistant PE water supply pipe and preparation method thereof |
| CN112648445B (en) * | 2020-12-21 | 2022-07-26 | 安徽杰蓝特新材料有限公司 | Reinforced wear-resistant PE water supply pipe and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102705591B (en) | 2015-07-15 |
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