CN103062520A - Novel high pressure resistant high-density polyethylene (HDPE) water pipe - Google Patents

Novel high pressure resistant high-density polyethylene (HDPE) water pipe Download PDF

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Publication number
CN103062520A
CN103062520A CN2012103240845A CN201210324084A CN103062520A CN 103062520 A CN103062520 A CN 103062520A CN 2012103240845 A CN2012103240845 A CN 2012103240845A CN 201210324084 A CN201210324084 A CN 201210324084A CN 103062520 A CN103062520 A CN 103062520A
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China
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hdpe
parts
stainless steel
water pipe
novel
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CN2012103240845A
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CN103062520B (en
Inventor
周伟
林风
郭翠芳
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HEBEI XINPENG COMMUNICATION EQUIPMENT Co.,Ltd.
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郭翠芳
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment

Abstract

Disclosed is a novel high pressure resistant high-density polyethylene (HDPE) water pipe. An HDPE core tube is arranged on an innermost layer of the water pipe, a first stainless steel wire mesh layer is wrapped on the outside of the HDPE core tube, an HDPE intermediate combined layer is wrapped on the outside of the first stainless steel wire mesh layer, a second stainless steel wire mesh layer is wrapped on the outer wall of the HDPE intermediate combined layer, and an HDPE weather-proof layer is wrapped on the outside of the second stainless steel wire mesh layer. The novel high pressure resistant HDPE water pipe has the advantages of being high in performances, applicability and bonding strength, non-toxic, non-irritant, corrosion resistant, not prone to be rusted and the like. The polyethylene weather-proof layer can be resistant to corrosion of various corrosive media such as acids, alkali, salt and organic solvents and is not like materials such as steel tubes which can produce electrocorrosion and foster corrosion damage, and the service life of the polyethylene weather-proof layer can reach to 50 years. By means of the first and second stainless steel wire mesh layers, the compressive strength of a high strength HDPE corrugated pipe can be improved, and the high strength HDPE corrugated pipe is not prone to crack and simultaneously has a good shock resistance.

Description

Novel high pressure-resistant HDPE water pipe
Technical field
The present invention relates to a kind of pipeline, particularly a kind of novel high pressure-resistant HDPE water pipe.
Background technique
Supplying drainage is widely used in the plumbing fields such as highway, railway bed, subway engineering, Landfills, tunnel, green belt, sports ground, and subirrigation and drainage system agriculture, gardening.The traditional metal supplying drainage is buried lower because of length, easy especially rust corrosion, even cause the serious problems such as perforation, obstruction.At present, the steel-plastic composite pipe development is very fast, and it is just constantly replacing the pipeline of various metal pipes and other traditional material in every field.Such as Chinese utility model patent 200920158238.1 disclosed a kind of novel HDPE steel plastic strip water blowdown tubing, it is comprised of protective layer, enhancing face, plastic tube wall, tinsel, binder, barrier layer, Bond and reinforce; The surface of tinsel is coated with a layer binder, and the outside of Bond applies barrier layer, the outside coated with adhesive of barrier layer, and the outside of Bond applies the outermost surface plastics; The top of tinsel is provided with the protective layer of the thickening of parcel, and protective layer becomes umbrella shape; Be provided with thread reinforce in the middle of the plastic tube wall; Stiffening rib and plastic tube wall are by plastic bonding together, and the adhered plastics of plastic tube wall 3 and stiffening rib both sides has the enhancing face than orthodrome, have strengthened accordingly the adhesion strength of stiffening rib and tube wall.This patent technique is made too loaded down with trivial details, needs to adopt multiple Bond, and this has increased cost of production on the one hand, directly affect again on the other hand between the pipeline firmly, even cause pipeline breaking.
Summary of the invention
The objective of the invention is to provide a kind of novel high pressure-resistant HDPE water pipe, the existing easy rust corrosion of pipeline, shock resistance are poor to solve, compressive strength high-technology problem not.
For solving the problems of the technologies described above, technological scheme of the present invention is: a kind of novel high pressure-resistant HDPE water pipe, described water pipe innermost layer is HDPE core pipe, described HDPE core pipe is wrapped with the first stainless steel stratum reticulare, the first stainless steel stratum reticulare is wrapped with the HDPE middle close binder, be enclosed with the second stainless steel stratum reticulare on the described HDPE middle close binder outer wall, the second stainless steel stratum reticulare is wrapped with the HDPE weathering layer.
As preferably, described HDPE core pipe is made by weight by following component: 50 parts of HDPE resins, 5 parts of composite fillers.
As preferably, described HDPE middle close binder is made by weight by following component: 50 parts of HDPE resins (high density polyethylene (HDPE)), 0.2~1.1 part of sorbitol, 3~8 parts of TPUEs (TPU).
As preferably, described HDPE weathering layer is mainly made by weight by following component: 80~85 parts of HDPE resins, 5~10 parts in calcium carbonate, 1~5 part of calcium stearate, 2~3 parts of Nano titanium dioxides, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] 0.3~0.5 part of pentaerythritol ester, 0.3~0.5 part of septichen phenyl ester, 0.2~0.3 part of Tissuemat E.
As preferably, described composite filler is made by weight by following component: silica 50%~60%, red hematite 4%~7%, calcium sulfate crystal whiskers 5%~10%, wollastonite 5%~10%, djevahirdjian 5%~10%, calcium carbonate 8%~15%.
Wherein four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant 1010) has antioxidation.The septichen phenyl ester has the uvioresistant effect.Tissuemat E has the effect of each packing of Uniform Dispersion.
Owing to added TPUE in the HDPE middle close binder.Elastomer has good combination to multilaminar polyethylene, with sorbitol synergy, can effectively improve the toughness of goods and rigidity, heat distortion temperature, dimensional stability.So that composite structure of the present invention has good strength, wear-resisting property.
The present invention have high-performance, high applicability, adhesive strength high, nontoxic non-stimulated, corrosion-resistant, the characteristics such as be difficult for getting rusty.The erosion of the various Korrosionsmediums such as the polyethylene weathering layer can acid-and base-resisting, salt and organic solvent unlike materials such as steel pipes, produces electro erosion, impels corrosion to damage, and can reach 50 years its working life.Its first, second stainless steel stratum reticulare can increase high strength HDPE bellows compressive strength, impel high strength HDPE bellows to be difficult for breaking, under the condition of equal load, the wear resistance of this HDPE bellows even than steel pipe taller several times, have simultaneously good shock resistance, only need thinner tube wall just can meet the demands during application.The noise reduction muscle can play the function of noise reduction.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is sectional view of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, technological scheme of the present invention is described in further detail.
Fig. 1 is structural representation of the present invention; Fig. 2 is structure sectional view of the present invention.By Fig. 1 in conjunction with Fig. 2 as can be known, this novel high pressure-resistant HDPE water pipe mainly is made of HDPE weathering layer 1, HDPE middle close binder 4, HDPE core pipe 5 etc.Below be the several examples during novel high pressure-resistant HDPE water pipe is made.
Embodiment 1: by weight dropping in the First extruder hopper after 50 parts of HDPE resins, 5 parts of mixing of composite filler (by weight percentage: silica 58%, red hematite 7%, calcium sulfate crystal whiskers 5%, wollastonite 5%, djevahirdjian 10%, calcium carbonate 15%); By weight with 50 parts of HDPE resins (high density polyethylene (HDPE)), 0.2 part of sorbitol, second extruder hopper of 5 parts of inputs of TPUE; By weight dropping in the 3rd extruder hopper after 80 parts of HDPE resins, 5 parts in calcium carbonate, 1 part of calcium stearate, 2 parts of Nano titanium dioxides, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] 0.3 part of pentaerythritol ester, 0.3 part of septichen phenyl ester, 0.2 part of mixing of Tissuemat E; During production, the first extruder is extruded HDPE core pipe 5, after the HDPE core pipe 5 process water-cooleds and sizing after extruding, Stainless Steel Wire is wrapped on the HDPE core pipe 5 from the mode of the right and left with left-handed dextrorotation respectively, the angle of twining is 50 degree, so that tubing is axial and the hoop uniform stressed, form the first stainless steel stratum reticulare 3.After HDPE core pipe 5 twines through heating, HDPE middle close binder 4 is extruded HDPE core pipe 5 parcels by the second extruder, after the HDPE middle close binder 4 process water-cooleds and sizing after extruding, Stainless Steel Wire is wrapped on the HDPE middle close binder 4 from the mode of the right and left with left-handed dextrorotation respectively, the angle of twining is 50 degree, so that tubing is axial and the hoop uniform stressed, form the second stainless steel stratum reticulare 31; After HDPE middle close binder 4 twines, through heating, extrude HDPE weathering layer 1 parcel by the 3rd extruder.Guarantee that hot melt sticks to one between high-tensile steel wires and the internal and external layer HDPE, just become novel high pressure-resistant HDPE water pipe through cooling and shaping.
Embodiment 2: by weight dropping into the First extruder hopper after 50 parts of HDPE resins, 5 parts of mixing of composite filler (by weight percentage: silica 50%, red hematite 7%, calcium sulfate crystal whiskers 10%, wollastonite 10%, djevahirdjian 5%, calcium carbonate 15%); By weight with in 50 parts of HDPE resins (high density polyethylene (HDPE)), 0.7 part of sorbitol, second extruder hopper of 3 parts of inputs of TPUE; After 83 parts of HDPE resins, 8 parts in calcium carbonate, 3 parts of calcium stearates, 2 parts of Nano titanium dioxides, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] 0.4 part of pentaerythritol ester, 0.4 part of septichen phenyl ester, 0.2 part of mixing of Tissuemat E, drop in the 3rd extruder hopper; The mode of production is the same.
Embodiment 3: by weight with 5 parts of 50 parts of HDPE resins, composite filler (by weight percentage: silica 60%, red hematite 4%, calcium sulfate crystal whiskers 10%, wollastonite 10%, djevahirdjian 5%, calcium carbonate 8%) drop into the First extruder hopper after 5 parts of mixing; By weight with in 50 parts of HDPE resins (high density polyethylene (HDPE)), 1.1 parts of sorbitols, second extruder hopper of 8 parts of inputs of TPUE; By weight with in 85 parts of HDPE resins, 10 parts in calcium carbonate, 5 parts of calcium stearates, 3 parts of Nano titanium dioxides, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] 0.5 part of pentaerythritol ester, 0.5 part of septichen phenyl ester, 0.3 part of the 3rd extruder hopper of Tissuemat E; The mode of production is the same.
In order to verify effect of the present invention, embodiment 1-3 is compared than other like product, shown in the table specific as follows.
Table 1: the contrast and experiment between two kinds of water pipes
Project Other company's water pipe Water pipe of the present invention
The standard degree of cross linking 65% 60%
Ageing resistance (min) 6.07 9.63
Light shielding property Generally Excellent
Structural type Solid netted Solid netted
Crosslinked uniformity Generally Excellent
Crosslinking additives Silane Nothing
The chemical pure cleanliness Relatively poor Good
Working life 50 50-60
Pliability Generally Better
Physical and mechanical properties Better Excellent
Creep properties Little Very little
Anti-burst pressure Generally High
The result shows: compare other like product, adopt the HDPE tubing of the present invention's preparation, have better mechanical property and aging quality resistance.

Claims (5)

1. novel high pressure-resistant HDPE water pipe, it is characterized in that described water pipe innermost layer is HDPE core pipe, described HDPE core pipe is wrapped with the first stainless steel stratum reticulare, the first stainless steel stratum reticulare is wrapped with the HDPE middle close binder, be enclosed with the second stainless steel stratum reticulare on the described HDPE middle close binder outer wall, the second stainless steel stratum reticulare is wrapped with the HDPE weathering layer.
2. novel high pressure-resistant HDPE water pipe according to claim 1 is characterized in that described HDPE core pipe made by weight by following component: 50 parts of HDPE resins, 5 parts of composite fillers.
3. novel high pressure-resistant HDPE water pipe according to claim 1 is characterized in that described HDPE middle close binder made by weight by following component: 50 parts of HDPE resins, 0.2~1.1 part of sorbitol, 3~8 parts of TPUEs.
4. novel high pressure-resistant HDPE water pipe according to claim 1, it is characterized in that described HDPE weathering layer mainly made by weight by following component: 80~85 parts of HDPE resins, 5~10 parts in calcium carbonate, 1~5 part of calcium stearate, 2~3 parts of Nano titanium dioxides, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] 0.3~0.5 part of pentaerythritol ester, 0.3~0.5 part of septichen phenyl ester, 0.2~0.3 part of Tissuemat E.
5. according to claim 1 or 4 described novel high pressure-resistant HDPE water pipes, it is characterized in that described composite filler made by weight by following component: silica 50%~60%, red hematite 4%~7%, calcium sulfate crystal whiskers 5%~10%, wollastonite 5%~10%, djevahirdjian 5%~10%, calcium carbonate 8%~15%.
CN201210324084.5A 2012-09-05 2012-09-05 Novel high pressure-resistant HDPE water pipes Active CN103062520B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105972337A (en) * 2016-06-23 2016-09-28 康泰塑胶科技集团有限公司 Abrasion-resisting, heat-resisting, antibacterial and scale-preventing steel wire skeleton pipe and manufacturing method thereof
CN107629293A (en) * 2017-09-30 2018-01-26 广西金盛科技发展有限公司 The preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe
CN110722760A (en) * 2019-09-27 2020-01-24 安庆市悦发管业有限公司 Processing technology of high-pressure-resistant HDPE (high-density polyethylene) water pipe

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2142168Y (en) * 1992-11-19 1993-09-15 常州高压软管厂 High-pressure plastic hose twined with steel wire
CN101358008A (en) * 2008-09-11 2009-02-04 大庆石油管理局 Preparation method of special material for buried polyethylene drainage pipe
CN201462218U (en) * 2009-06-12 2010-05-12 龚畅 Steel-plastic reinforced composite pipe
CN201764136U (en) * 2010-09-08 2011-03-16 河南盛世塑业有限公司 Reinforced plastic pipe
CN202100842U (en) * 2011-06-13 2012-01-04 王炜 Metal and plastic double-composite intensifying tube
CN102359668A (en) * 2011-09-29 2012-02-22 广东东方管业有限公司 Flame retardant and antistatic steel mesh skeleton polyethylene composite pipe for mining and manufacturing method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2142168Y (en) * 1992-11-19 1993-09-15 常州高压软管厂 High-pressure plastic hose twined with steel wire
CN101358008A (en) * 2008-09-11 2009-02-04 大庆石油管理局 Preparation method of special material for buried polyethylene drainage pipe
CN201462218U (en) * 2009-06-12 2010-05-12 龚畅 Steel-plastic reinforced composite pipe
CN201764136U (en) * 2010-09-08 2011-03-16 河南盛世塑业有限公司 Reinforced plastic pipe
CN202100842U (en) * 2011-06-13 2012-01-04 王炜 Metal and plastic double-composite intensifying tube
CN102359668A (en) * 2011-09-29 2012-02-22 广东东方管业有限公司 Flame retardant and antistatic steel mesh skeleton polyethylene composite pipe for mining and manufacturing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105972337A (en) * 2016-06-23 2016-09-28 康泰塑胶科技集团有限公司 Abrasion-resisting, heat-resisting, antibacterial and scale-preventing steel wire skeleton pipe and manufacturing method thereof
CN107629293A (en) * 2017-09-30 2018-01-26 广西金盛科技发展有限公司 The preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe
CN110722760A (en) * 2019-09-27 2020-01-24 安庆市悦发管业有限公司 Processing technology of high-pressure-resistant HDPE (high-density polyethylene) water pipe

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