CN116001233A - Double-layer PE corrugated pipe preparation method for transmitting high-temperature sewage - Google Patents
Double-layer PE corrugated pipe preparation method for transmitting high-temperature sewage Download PDFInfo
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- CN116001233A CN116001233A CN202310012263.3A CN202310012263A CN116001233A CN 116001233 A CN116001233 A CN 116001233A CN 202310012263 A CN202310012263 A CN 202310012263A CN 116001233 A CN116001233 A CN 116001233A
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- 239000010865 sewage Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 120
- 238000003723 Smelting Methods 0.000 claims abstract description 58
- 238000002156 mixing Methods 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 25
- 230000006835 compression Effects 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 21
- 238000005260 corrosion Methods 0.000 claims abstract description 21
- 230000007797 corrosion Effects 0.000 claims abstract description 18
- 239000004698 Polyethylene Substances 0.000 claims description 113
- -1 polyethylene Polymers 0.000 claims description 65
- 238000003756 stirring Methods 0.000 claims description 58
- 229920000573 polyethylene Polymers 0.000 claims description 52
- 239000002245 particle Substances 0.000 claims description 38
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 28
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 28
- 241001330002 Bambuseae Species 0.000 claims description 28
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 28
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 28
- 239000011425 bamboo Substances 0.000 claims description 28
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 28
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 28
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 28
- 239000003610 charcoal Substances 0.000 claims description 28
- 238000001125 extrusion Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 14
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 229920000690 Tyvek Polymers 0.000 claims description 9
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 8
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 6
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 239000012745 toughening agent Substances 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- 239000005662 Paraffin oil Substances 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000004209 oxidized polyethylene wax Substances 0.000 claims description 4
- 235000013873 oxidized polyethylene wax Nutrition 0.000 claims description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- 239000003242 anti bacterial agent Substances 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 239000012744 reinforcing agent Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims 1
- 229920000647 polyepoxide Polymers 0.000 claims 1
- 241000894006 Bacteria Species 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 106
- 229920001903 high density polyethylene Polymers 0.000 description 42
- 239000004700 high-density polyethylene Substances 0.000 description 42
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 18
- 239000004342 Benzoyl peroxide Substances 0.000 description 12
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 12
- 235000019400 benzoyl peroxide Nutrition 0.000 description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 12
- 239000001993 wax Substances 0.000 description 12
- 239000004594 Masterbatch (MB) Substances 0.000 description 11
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 11
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 11
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 11
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 11
- 229940051841 polyoxyethylene ether Drugs 0.000 description 11
- 229920000056 polyoxyethylene ether Polymers 0.000 description 11
- LGORLCOUTMVEAC-UHFFFAOYSA-M sodium;2-nonylphenolate Chemical compound [Na+].CCCCCCCCCC1=CC=CC=C1[O-] LGORLCOUTMVEAC-UHFFFAOYSA-M 0.000 description 11
- 230000000844 anti-bacterial effect Effects 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 9
- 230000001965 increasing effect Effects 0.000 description 9
- 238000004321 preservation Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 6
- 239000003063 flame retardant Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 239000007900 aqueous suspension Substances 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000006750 UV protection Effects 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- JRFBNCLFYLUNCE-UHFFFAOYSA-N zinc;oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[Ti+4].[Zn+2] JRFBNCLFYLUNCE-UHFFFAOYSA-N 0.000 description 2
- LLNSYBHDHRWWME-UHFFFAOYSA-N 2,3,5,6-tetrabutyl-4-[2-(2,3,5,6-tetrabutyl-4-hydroxyphenyl)propan-2-yl]phenol Chemical compound CCCCc1c(O)c(CCCC)c(CCCC)c(c1CCCC)C(C)(C)c1c(CCCC)c(CCCC)c(O)c(CCCC)c1CCCC LLNSYBHDHRWWME-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 125000004383 glucosinolate group Chemical group 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- CVHZOJJKTDOEJC-UHFFFAOYSA-N saccharin Chemical compound C1=CC=C2C(=O)NS(=O)(=O)C2=C1 CVHZOJJKTDOEJC-UHFFFAOYSA-N 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Abstract
The invention provides a double-layer PE corrugated pipe preparation method for conveying high-temperature sewage, which comprises the following steps of separately preparing raw materials of a compression-resistant outer pipe layer and raw materials of a heat-resistant inner pipe layer, putting the raw materials into a dryer for drying, respectively carrying out melt mixing on the dried raw materials of the compression-resistant outer pipe layer and the heat-resistant inner pipe layer through smelting equipment to obtain raw materials in a molten state, feeding the obtained raw materials of the compression-resistant outer pipe layer and the raw materials of the heat-resistant inner pipe layer in the molten state into a multilayer coextrusion device through a vacuum suction machine, compressing and extruding the raw materials of the compression-resistant outer pipe layer and the raw materials of the heat-resistant inner pipe layer through the multilayer coextrusion device to obtain double-layer pipe blanks, adhering the coextruded double-layer pipe blanks on a traction screw rod, starting a tractor to slowly introduce the double-layer pipe blanks into the vacuum setting machine, and cooling, extruding and setting the obtained double-layer pipe blanks in the vacuum state; the invention has the advantages of strong heat resistance, good corrosion resistance and bacteria resistance, high pipe body strength and good compression resistance.
Description
Technical Field
The invention relates to the field of polyethylene pipe manufacturing, in particular to a double-layer PE corrugated pipe manufacturing method for transmitting high-temperature sewage.
Background
The polyethylene pipe, PE pipe for short, is a pipe made of nonpolar thermoplastic resin, is nontoxic, odorless and odorless, has better strength, good weather resistance, strong low-temperature tolerance and weaker water absorption, is convenient to transport and install, good in mechanical property, good in chemical stability, strong in insulativity and low in conveying loss, is widely applied to various fields such as tap water conveying, sewage discharge, gas conveying, wire insulation layers and the like, and particularly in sewage conveying, the excellent corrosion resistance and mechanical strength of the polyethylene pipe enable the polyethylene pipe to cope with a plurality of complex sewage components and pollution discharge environments.
The common polyethylene pipe is generally used as a transmission pipeline, good weather resistance enables the polyethylene pipe to cope with most of hot and cold external environments, but because the polyethylene material belongs to thermoplastic resin, the polyethylene pipe does not have good heat resistance, when the temperature of liquid flowing through the inside of the pipeline is higher, the polyethylene pipe is heated to cause the property to change, the strength of the pipe body is weakened, the chemical stability is also reduced, the shape of the pipe body is also greatly deformed along with the increase of the internal temperature, the trafficability is influenced, meanwhile, the compression resistance, the ageing resistance and the corrosion resistance are both influenced by high temperature to some extent, and in the sewage treatment process, the cooling link is longer, the pollution discharge efficiency is seriously influenced, but the temperature of part of sewage is enough to change the shape of the polyethylene pipe, so that the sewage with the temperature not reduced cannot be directly discharged through the polyethylene pipe, the cooling cost is increased, and the production efficiency is also reduced.
In the published patent CN103408828B, a preparation method of a halogen-free flame-retardant PE pipe is provided, a small amount of halogen flame retardant is added into the PE pipe to strengthen the flame-retardant effect of the PE pipe, but the halogen flame retardant is more limited in use, is more troublesome in post-treatment and is easy to cause environmental protection, the flame retardant mode does not depend on enhancing the heat resistance to perform flame retardance, but achieves the flame retardant purpose by increasing the ignition point and reducing the combustion effect, the heat resistance of the PE pipe is not improved, and the property and chemical stability of the PE pipe are still changed when the PE pipe encounters high-temperature liquid flowing through the interior, so that the integral strength and other performances of the PE pipe are affected.
In the published patent CN112210151B, there is provided a corrosion-resistant PE pipe, in which the compressive property of the polyethylene pipe is reinforced by modifying polyethylene and adding ceramic particles thereto, the anti-aging property of the formed polyethylene pipe is improved by adding sodium saccharin, and the antibacterial property of the polyethylene pipe is reinforced by adding glucosinolate, but the scheme does not consider that the chemical stability is affected due to the easy occurrence of property change of the polyethylene pipe when the external high temperature or internal high temperature liquid flows through, and the compressive property, the anti-aging property or the antibacterial property is reduced.
As can be seen from the above-disclosed patent documents, the heat resistance of the common PE pipe is indeed insufficient, when the PE corrugated pipe is adopted as the sewage pipe in the factory, the high-temperature sewage is required to be cooled and then injected into the pipe for transmission and discharge, and the PE-RT pipe has a high heat resistance effect in the market, but the price of the PE-RT pipe is far higher than that of a general PE pipe, and the PE-RT pipe has poor external impact resistance and tearing resistance, is complex to install and is not suitable for a large-scale sewage system.
At present, a PE pipeline with good heat resistance, excellent corrosion resistance and strong compression resistance and impact resistance is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a double-layer PE corrugated pipe preparation method for transmitting high-temperature sewage, which solves the problem of enhancing the heat resistance, compression resistance and corrosion resistance of a PE pipe.
The invention aims at realizing the following technical scheme that the double-layer PE corrugated pipe comprises a compression-resistant outer pipe layer and a heat-resistant inner pipe layer, and the preparation method comprises the following steps:
s1: separately preparing raw materials of the heat-resistant inner pipe layer and the compression-resistant outer pipe layer, placing polyethylene particles into a rotary table, blowing the polyethylene particles for 20 minutes by using compressed air, setting the rotating speed to 120r/min, and sending the raw materials into a drying box to be dried for 1 hour at 65 ℃;
s2: the raw materials dried in the step S1 are separately fed into smelting equipment for smelting and mixing, polyethylene particles are firstly put into the raw materials, reinforcing agents are put into the raw materials after the raw materials are smelted, and finally other raw materials are put into the raw materials, wherein the temperature is set to be 180-240 ℃, the rotating speed is 300-600 r/min, and the raw materials are stirred for 40-60 minutes in a heat-insulating way, so that the raw materials of the heat-resistant inner pipe layer and the raw materials of the compression-resistant outer pipe layer in a molten state are obtained;
s3: cooling the raw materials of the heat-resistant inner pipe layer and the raw materials of the compression-resistant outer pipe layer which are in the molten state and obtained in the step S2 to 160 ℃, feeding the raw materials into a multi-layer co-extrusion device by using a vacuum material sucking machine, setting the extrusion temperature to be 200-215 ℃, and setting the speed ratio of the material sucking machine to the extrusion device to be 1: 2-3, compressing and extruding to obtain a double-layer pipe blank;
s4: adhering the double-layer tube blank extruded in the step S3 on a traction screw rod, starting a traction machine to introduce the double-layer tube blank into a vacuum setting machine, wherein the traction speed is 30-40 m/min;
s5: and (3) cooling the double-layer tube blank obtained in the step (S4) in a vacuum state, wherein the cooling temperature is 15-25 ℃, and extruding and shaping to obtain the double-layer PE corrugated tube.
According to the invention, the heat resistance of the inner pipe layer is improved by adding the heat resistance agent into the inner pipe layer of the double-layer PE corrugated pipe, meanwhile, the corrosion resistance is improved by adding the corrosion resistance agent, the antibacterial property of the inner pipe layer is enhanced by adding the nano silver, the inner pipe layer is prevented from being damaged by bacterial mass accumulation and reproduction, meanwhile, the external impact resistance and the tearing resistance of the outer pipe layer are enhanced by adding the toughening agent into the raw material of the outer pipe layer, the ultraviolet resistance and the ageing resistance are enhanced by adding the modified bamboo charcoal polyethylene particles, the inner pipe layer and the outer pipe layer are laminated during vacuum shaping, and the corrugated structure of the outer pipe layer is endowed, so that the double-layer PE corrugated pipe is finally obtained, the overall strength of the double-layer PE corrugated pipe is improved by adding the corrosion resistance, the external impact resistance and the tearing resistance of the outer pipe layer, and the inner pipe layer have better heat resistance, corrosion resistance and antibacterial property, and can cope with a large number of pollution discharge environments.
In the above method for preparing a double-layer PE corrugated pipe for transporting high-temperature sewage, preferably, the preparation raw materials of the heat-resistant inner pipe layer include high-density polyethylene, a heat-resistant agent, an anti-corrosion agent, nano silver, benzoyl peroxide, polytetrafluoroethylene and carboxymethyl cellulose, and the mass ratio of the raw materials is 100: 10-20: 3 to 5: 10-20: 2 to 6:3 to 6: 6-10; as the most preferable, when the mass part ratio of the raw materials is 100:18:5:14:6:6:8, the obtained double-layer PE corrugated pipe has the best heat resistance, and meanwhile, the antibacterial performance and the corrosion resistance are both achieved.
In the above method for preparing a double-layer PE corrugated pipe for transporting high-temperature sewage, preferably, the preparation raw materials of the pressure-resistant outer pipe layer include high-density polyethylene, acrylonitrile-butadiene-styrene copolymer, toughening agent, polyethylene wax, carboxymethyl cellulose, masterbatch, modified bamboo charcoal polyethylene particles, zirconia, and sodium nonylphenol polyoxyethylene ether sulfate, wherein the mass ratio of the raw materials is 100:20-40:20-40:10-20:8-16:10-20:3-8:3-6:4-10; most preferably, when the mass part ratio of the raw materials is 100:33:35:16:11:15:8:6:6, the compression resistance of the obtained double-layer PE corrugated pipe is the best.
In the above method for preparing a double-layer PE corrugated pipe for transporting high-temperature sewage, preferably, the method for preparing the modified bamboo charcoal polyethylene particles comprises the steps of adding PE resin, modified bamboo charcoal powder, paraffin oil, oxidized polyethylene wax and silane coupling agent into a high-speed stirrer for stirring and mixing, extruding and granulating the mixed materials by a double-screw extruder, wherein the mass ratio of the raw materials is 50:5:5: 4-8: 1 to 5; most preferably, when the mass part ratio of the raw materials is 50:5:5:4:5, the obtained modified bamboo charcoal polyethylene particles have better compatibility with other raw materials.
In the above method for preparing a double-layer PE bellows for transporting high-temperature sewage, preferably, the heat-resistant agent is one or more selected from tetrabutyl titanate and bisphenol a phosphite; as the most preferable, tetrabutyl titanate is used as the heat-resistant agent, so that the heat-resistant effect of the inner tube layer can be improved, and the compression resistance and corrosion resistance can be enhanced.
In the above method for preparing a double-layer PE corrugated pipe for transporting high-temperature sewage, preferably, the corrosion inhibitor is one or more of thioglucoside, bisphenol a epoxy resin or EVA resin; most preferably, when thioglucoside is selected as an anti-corrosion agent, the obtained double-layer PE corrugated pipe has the best anti-corrosion performance.
In the above method for preparing a double-layer PE bellows for transporting high-temperature sewage, preferably, the antimicrobial agent is one or more of nano silver or nano titanium dioxide; most preferably, nano silver is selected as an antibacterial agent, so that the raw material fusion speed can be increased.
In the above method for preparing a dual-layer PE bellows for transporting high-temperature sewage, preferably, the toughening agent is one or more selected from high-density polyethylene fiber, thermoplastic elastomer SBS or nano boron fiber; as the most preferable, when the high-density polyethylene fiber is used as the toughening agent, the obtained double-layer PE corrugated pipe has stronger external impact resistance and tearing resistance.
In the above method for preparing a double-layer PE bellows for transporting high-temperature sewage, preferably, carboxymethyl cellulose is used as a compatilizer in the raw materials, and the carboxymethyl cellulose is used as the compatilizer to bond other raw materials, so that the compatibility speed is improved.
In the above method for preparing a double-layer PE bellows for transporting high-temperature sewage, preferably, the heat-resistant inner tube layer is tightly attached to the inner side of the pressure-resistant outer tube layer under the influence of water pressure during the vacuum shaping process.
In summary, compared with the prior art, the invention has the following advantages:
1. according to the invention, the heat resistant agent, the corrosion resistant agent and the nano silver are added into the inner pipe layer to improve the overall heat resistance, corrosion resistance and antibacterial performance of the pipe, polytetrafluoroethylene is added to further improve the strength, heat resistance, corrosion resistance and other performances of the pipe, benzoyl peroxide is added as an initiator, carboxymethyl cellulose is added as a compatilizer to ensure the smooth progress of the reaction, and finally the obtained inner pipe layer has excellent heat resistance, corrosion resistance and antibacterial effect;
2. according to the invention, the toughening agent is added into the outer pipe layer of the double-layer PE corrugated pipe, so that the external impact resistance and tearing resistance of the outer pipe layer are enhanced, the overall strength of the finally pressed double-layer PE corrugated pipe is improved, polyethylene wax is added into the raw materials to reduce the material flow viscosity, improve the melt flow rate, the compression resistance can be enhanced when extrusion is carried out, modified bamboo charcoal polyethylene particles are used for replacing carbon black, the ultraviolet resistance can be improved, the ageing resistance and the antibacterial performance of the pipe are enhanced, and the compatibility between materials is improved by adding carboxymethyl cellulose, so that the finally obtained outer pipe layer has strong compression resistance effect and certain ageing resistance and antibacterial capability;
3. when the tube blank is extruded and shaped, vacuum shaping equipment for pressing by applying pressure simultaneously inside and outside the tube is adopted, cooling shaping is carried out synchronously, the problem that the adhesion effect of the inner tube layer and the outer tube layer is poor and the integral strength of the double-layer PE corrugated tube is influenced is avoided, meanwhile, the working time is shortened, and the production efficiency is improved;
4. the carboxymethyl cellulose is added into the raw materials as the compatilizer, so that the compatilizer speed of the raw materials can be increased, the heating time is shortened, and the production efficiency is improved.
Detailed Description
The technical content, constructional features, achieved objects and effects of the present invention will be further described in connection with the specific embodiments.
Example 1:
(1) The following raw materials of the outer pipe layer are prepared according to parts by weight: 100 parts of high-density polyethylene, 33 parts of acrylonitrile-butadiene-styrene copolymer, 35 parts of high-density polyethylene fiber, 16 parts of polyethylene wax, 11 parts of carboxymethyl cellulose, 15 parts of masterbatch, 8 parts of modified bamboo charcoal polyethylene particles, 6 parts of zirconia, and 6 parts of sodium nonylphenol polyoxyethylene ether sulfate.
Placing high-density polyethylene particles into a rotary table, setting the rotating speed to 120r/min, purging with compressed air for 20min, drying all raw materials in a drying oven at 65 ℃ for 1h, and mixing the dried raw materials in a stirring device.
After the raw materials are mixed, the raw materials are sent into smelting equipment for smelting and mixing, firstly high-density polyethylene is put into the smelting equipment, the stirring speed is 300r/min at the temperature of 210 ℃, after the high-density polyethylene is melted, the acrylonitrile-butadiene-styrene copolymer, modified bamboo charcoal polyethylene particles, high-density polyethylene fibers and carboxymethyl cellulose are put into the smelting equipment, the temperature is reduced to 190 ℃, the stirring speed is 600r/min, and finally the polyethylene wax, masterbatch, zirconia and sodium nonylphenol polyoxyethylene ether sulfate are put into the smelting equipment for 2 hours, and the mixture is stirred for 1 hour under heat preservation.
(2) The following inner pipe layer raw materials are prepared according to parts by weight: 100 parts of high-density polyethylene, 20 parts of tetrabutyl titanate, 5 parts of thioglucoside, 14 parts of nano silver, 6 parts of benzoyl peroxide, 6 parts of polytetrafluoroethylene and 8 parts of carboxymethyl cellulose.
And (3) putting the high-density polyethylene particles into clear water, setting the rotating speed to be 120r/min, stirring and cleaning for 20min, conveying all raw materials into a drying box, drying at 65 ℃ for 1h, and conveying the dried raw materials into stirring equipment for mixing.
After the raw materials are mixed, the raw materials are sent into smelting equipment for melting and mixing, the high-density polyethylene is firstly placed into the smelting equipment, the temperature is set to 210 ℃, the stirring speed is 300r/min, tetrabutyl titanate, thioglucoside, polytetrafluoroethylene and carboxymethyl cellulose are then placed into the smelting equipment after the high-density polyethylene is melted, the temperature is increased to 240 ℃, the stirring speed is 600r/min, then the nano silver and benzoyl peroxide are placed into the smelting equipment, the smelting is carried out for 4 hours, and the heat preservation and stirring are carried out for 1 hour.
(3) Cooling the raw materials in a molten state to 160 ℃, sucking the raw materials into extrusion equipment by using a vacuum sucking machine, setting the extrusion temperature to 210 ℃, and setting the speed ratio of the sucking machine to the extrusion equipment to be 1:2, compressing and extruding to obtain a double-layer pipe blank, adhering the double-layer pipe blank on a traction screw, setting the traction speed to be 30 m/min, starting a tractor to slowly introduce the double-layer pipe blank into a vacuum setting machine, adsorbing an outer pipe layer on a die under the influence of vacuum pressure, extruding an inner pipe layer outwards under the mechanical thrust of internal water flow to be tightly adhered to the outer pipe layer, setting the cooling temperature to be 15 ℃, and setting after spraying and cooling to obtain the double-layer PE corrugated pipe.
Example 2:
preparing modified bamboo charcoal polyethylene particles:
putting 10 parts of nano titanium dioxide and 30 parts of zinc oxide into a beaker, mixing to obtain composite powder, adding 360 parts of clear water, heating to 100 ℃, stirring to an emulsion state, crushing 200 parts of bamboo charcoal to 300 meshes, putting into another beaker, adding 200 parts of water, heating to 100 ℃, stirring to form a charcoal-water suspension nano titanium dioxide-zinc oxide emulsion, mixing with the charcoal-water suspension according to a ratio of 1:4, stirring for 40min, evaporating under reduced pressure to remove the solvent, and drying to obtain the modified bamboo charcoal powder.
The following raw materials are prepared according to parts by weight: 50 parts of polyethylene resin, 5 parts of modified bamboo charcoal powder, 5 parts of paraffin oil, 4 parts of oxidized polyethylene wax and 5 parts of KH560, adding the raw materials into a stirrer, stirring and mixing, extruding the mixed materials through a double-screw extruder, and granulating to obtain modified bamboo charcoal polyethylene particles.
Example 3:
(1) The following raw materials of the outer pipe layer are prepared according to parts by weight: 100 parts of high-density polyethylene, 40 parts of acrylonitrile-butadiene-styrene copolymer, 40 parts of high-density polyethylene fiber, 20 parts of polyethylene wax, 16 parts of carboxymethyl cellulose, 20 parts of masterbatch, 8 parts of modified bamboo charcoal PE particles, 6 parts of zirconia, and 10 parts of sodium nonylphenol polyoxyethylene ether sulfate.
And (3) putting the high-density polyethylene particles into clear water, setting the rotating speed to be 120r/min, stirring and cleaning for 20min, conveying all raw materials into a drying box, drying at 65 ℃ for 1h, and conveying the dried raw materials into stirring equipment for mixing.
After the raw materials are mixed, the raw materials are sent into smelting equipment for smelting and mixing, firstly high-density polyethylene is put into the smelting equipment, the stirring speed is 300r/min at the temperature of 210 ℃, after the high-density polyethylene is melted, the acrylonitrile-butadiene-styrene copolymer, the modified bamboo charcoal polyethylene particles, the high-density polyethylene fibers and the carboxymethyl cellulose are put into the smelting equipment, the temperature is reduced to 190 ℃, the stirring speed is 450r/min, and finally the polyethylene wax, masterbatch, zirconia and sodium nonylphenol polyoxyethylene ether sulfate are put into the smelting equipment for smelting for 2 hours, and the heat preservation and stirring are carried out for 40min.
(2) The following inner pipe layer raw materials are prepared according to parts by weight: 100 parts of high-density polyethylene, 20 parts of tetrabutyl titanate, 5 parts of thioglucoside, 20 parts of nano silver, 6 parts of benzoyl peroxide, 6 parts of polytetrafluoroethylene and 10 parts of carboxymethyl cellulose.
And (3) putting the high-density polyethylene particles into clear water, setting the rotating speed to be 120r/min, stirring and cleaning for 20min, conveying all raw materials into a drying box, drying at 65 ℃ for 1h, and conveying the dried raw materials into stirring equipment for mixing.
After the raw materials are mixed, the raw materials are sent into smelting equipment for melting and mixing, firstly high-density polyethylene is put into the smelting equipment, the temperature is set to 210 ℃, the stirring speed is 300r/min, tetrabutyl titanate, thioglucoside, polytetrafluoroethylene and carboxymethyl cellulose are put into the smelting equipment after the high-density polyethylene is melted, the temperature is increased to 240 ℃, the stirring speed is 450r/min, then nano silver and benzoyl peroxide are put into the smelting equipment, the smelting is carried out for 4 hours, and the heat preservation and stirring are carried out for 50min.
(3) Cooling the raw materials in a molten state to 160 ℃, sucking the raw materials into extrusion equipment by using a vacuum sucking machine, setting the extrusion temperature to 210 ℃, and setting the speed ratio of the sucking machine to the extrusion equipment to be 1:2, compressing and extruding to obtain a double-layer pipe blank, adhering the double-layer pipe blank on a traction screw, setting the traction speed to be 35 m/min, starting a tractor to slowly introduce the double-layer pipe blank into a vacuum setting machine, adsorbing an outer pipe layer on a die under the influence of vacuum pressure, extruding an inner pipe layer outwards under the mechanical thrust of internal water flow to be tightly adhered to the outer pipe layer, setting the cooling temperature to be 20 ℃, and setting after spraying and cooling to obtain the double-layer PE corrugated pipe.
Example 4:
(1) The following raw materials of the outer pipe layer are prepared according to parts by weight: 100 parts of high-density polyethylene, 20 parts of acrylonitrile-butadiene-styrene copolymer, 20 parts of high-density polyethylene fiber, 10 parts of polyethylene wax, 8 parts of carboxymethyl cellulose, 10 parts of masterbatch, 3 parts of modified bamboo charcoal PE particles, 3 parts of zirconium oxide and 4 parts of sodium nonylphenol polyoxyethylene ether sulfate.
And (3) putting the high-density polyethylene particles into clear water, setting the rotating speed to be 120r/min, stirring and cleaning for 20min, conveying all raw materials into a drying box, drying at 65 ℃ for 1h, and conveying the dried raw materials into stirring equipment for mixing.
After the raw materials are mixed, the raw materials are sent into smelting equipment for smelting and mixing, firstly high-density polyethylene is put into the smelting equipment, the stirring speed is 300r/min at the temperature of 200 ℃, after the high-density polyethylene is melted, the acrylonitrile-butadiene-styrene copolymer, the modified bamboo charcoal polyethylene particles, the high-density polyethylene fibers and the carboxymethyl cellulose are put into the smelting equipment, the temperature is reduced to 180 ℃, the stirring speed is 600r/min, and finally the polyethylene wax, the masterbatch, the zirconia and the sodium nonylphenol polyoxyethylene ether sulfate are put into the smelting equipment for 2 hours, and the heat preservation and stirring are carried out for 1 hour.
(2) The following inner pipe layer raw materials are prepared according to parts by weight: 100 parts of high-density polyethylene, 10 parts of tetrabutyl titanate, 3 parts of thioglucoside, 10 parts of nano silver, 2 parts of benzoyl peroxide, 3 parts of polytetrafluoroethylene and 6 parts of carboxymethyl cellulose.
And (3) putting the high-density polyethylene particles into clear water, setting the rotating speed to be 120r/min, stirring and cleaning for 20min, conveying all raw materials into a drying box, drying at 65 ℃ for 1h, and conveying the dried raw materials into stirring equipment for mixing.
After the raw materials are mixed, the raw materials are sent into smelting equipment for melting and mixing, firstly high-density polyethylene is put into the smelting equipment, the temperature is set to be 200 ℃, the stirring speed is 300r/min, tetrabutyl titanate, thioglucoside, polytetrafluoroethylene and carboxymethyl cellulose are put into the smelting equipment after the high-density polyethylene is melted, the temperature is increased to 220 ℃, the stirring speed is 600r/min, then nano silver and benzoyl peroxide are put into the smelting equipment, the smelting is carried out for 4 hours, and the heat preservation and stirring are carried out for 1 hour.
(3) Cooling the raw materials in a molten state to 160 ℃, sucking the raw materials into extrusion equipment by using a vacuum sucking machine, setting the extrusion temperature to 210 ℃, and setting the speed ratio of the sucking machine to the extrusion equipment to be 1:3, compressing and extruding to obtain a double-layer pipe blank, adhering the double-layer pipe blank on a traction screw, setting the traction speed to be 40 m/min, starting a tractor to slowly introduce the double-layer pipe blank into a vacuum setting machine, adsorbing an outer pipe layer on a die under the influence of vacuum pressure, extruding an inner pipe layer outwards under the mechanical thrust of internal water flow to be tightly adhered to the outer pipe layer, setting the cooling temperature to be 25 ℃, and setting after spraying and cooling to obtain the double-layer PE corrugated pipe.
Example 5:
preparing modified bamboo charcoal polyethylene particles:
putting 10 parts of nano titanium dioxide and 10 parts of zinc oxide into a beaker, mixing to obtain composite powder, adding 160 parts of clear water, heating to 100 ℃, stirring to an emulsion state, crushing 72 parts of bamboo charcoal to 300 meshes, putting into another beaker, adding 108 parts of water, heating to 100 ℃, stirring to form a charcoal-water suspension nano titanium dioxide-zinc oxide emulsion, mixing with the charcoal-water suspension according to a ratio of 1:6, stirring for 40min, evaporating under reduced pressure to remove the solvent, and drying to obtain the modified bamboo charcoal powder.
The following raw materials are prepared according to parts by weight: 50 parts of polyethylene resin, 5 parts of modified bamboo charcoal powder, 5 parts of paraffin oil, 8 parts of oxidized polyethylene wax and 1 part of silane coupling agent, adding the raw materials into a stirrer, stirring and mixing, extruding the mixed materials through a double-screw extruder, and granulating to obtain modified bamboo charcoal PE particles.
Example 6:
(1) The following raw materials of the outer pipe layer are prepared according to parts by weight: 100 parts of high-density polyethylene, 33 parts of acrylonitrile-butadiene-styrene copolymer, 35 parts of thermoplastic elastomer SBS, 16 parts of polyethylene wax, 11 parts of carboxymethyl cellulose, 15 parts of masterbatch, 8 parts of modified bamboo charcoal polyethylene particles, 6 parts of zirconia and 6 parts of sodium nonylphenol polyoxyethylene ether sulfate.
And (3) putting the high-density polyethylene particles into clear water, setting the rotating speed to be 120r/min, stirring and cleaning for 20min, conveying all raw materials into a drying box, drying at 65 ℃ for 1h, and conveying the dried raw materials into stirring equipment for mixing.
After the raw materials are mixed, the raw materials are sent into smelting equipment for smelting and mixing, firstly high-density polyethylene is put into the smelting equipment, the stirring speed is 300r/min at the temperature of 210 ℃, after the high-density polyethylene is melted, acrylonitrile-butadiene-styrene copolymer, modified bamboo charcoal polyethylene particles, thermoplastic elastomer SBS and carboxymethyl cellulose are put into the smelting equipment, the temperature is reduced to 190 ℃, the stirring speed is 600r/min, and finally polyethylene wax, masterbatch, zirconia and sodium nonylphenol polyoxyethylene ether sulfate are put into the smelting equipment for 2 hours, and the mixture is subjected to heat preservation and stirring for 1 hour.
(2) The following inner pipe layer raw materials are prepared according to parts by weight: 100 parts of high-density polyethylene, 20 parts of bisphenol A phosphite, 5 parts of bisphenol A epoxy resin, 14 parts of nano silver, 6 parts of benzoyl peroxide, 6 parts of polytetrafluoroethylene and 8 parts of carboxymethyl cellulose.
And (3) putting the high-density polyethylene particles into clear water, setting the rotating speed to be 120r/min, stirring and cleaning for 20min, conveying all raw materials into a drying box, drying at 65 ℃ for 1h, and conveying the dried raw materials into stirring equipment for mixing.
After the raw materials are mixed, the raw materials are sent into smelting equipment for smelting and mixing, high-density polyethylene is firstly placed into the smelting equipment, the temperature is set to be 210 ℃, the stirring speed is 300r/min, bisphenol A phosphite, 5 parts of bisphenol A epoxy resin, polytetrafluoroethylene and carboxymethyl cellulose are then placed into the smelting equipment after the high-density polyethylene is molten, the temperature is increased to 240 ℃, the stirring speed is 600r/min, nano silver and benzoyl peroxide are then placed into the smelting equipment, the smelting is carried out for 4 hours, and the heat preservation and stirring are carried out for 1 hour.
(3) Cooling the raw materials in a molten state to 160 ℃, sucking the raw materials into extrusion equipment by using a vacuum sucking machine, setting the extrusion temperature to 210 ℃, and setting the speed ratio of the sucking machine to the extrusion equipment to be 1:2, compressing and extruding to obtain a double-layer pipe blank, adhering the double-layer pipe blank on a traction screw, setting the traction speed to be 30 m/min, starting a tractor to slowly introduce the double-layer pipe blank into a vacuum setting machine, adsorbing an outer pipe layer on a die under the influence of vacuum pressure, extruding an inner pipe layer outwards under the mechanical thrust of internal water flow to be tightly adhered to the outer pipe layer, setting the cooling temperature to be 15 ℃, and setting after spraying and cooling to obtain the double-layer PE corrugated pipe.
Example 7
(1) The following raw materials of the outer pipe layer are prepared according to parts by weight: 100 parts of high-density polyethylene, 33 parts of acrylonitrile-butadiene-styrene copolymer, 35 parts of nano boron fiber, 16 parts of polyethylene wax, 11 parts of carboxymethyl cellulose, 15 parts of masterbatch, 8 parts of modified bamboo charcoal polyethylene particles, 6 parts of zirconia and 6 parts of sodium nonylphenol polyoxyethylene ether sulfate.
And (3) putting the high-density polyethylene particles into clear water, setting the rotating speed to be 120r/min, stirring and cleaning for 20min, conveying all raw materials into a drying box, drying at 65 ℃ for 1h, and conveying the dried raw materials into stirring equipment for mixing.
After the raw materials are mixed, the raw materials are sent into smelting equipment for smelting and mixing, high-density polyethylene is firstly placed into the smelting equipment for smelting at the set temperature of 210 ℃ and the stirring speed of 300r/min, then acrylonitrile-butadiene-styrene copolymer, modified bamboo charcoal polyethylene particles, nanometer boron fiber and carboxymethyl cellulose are placed into the smelting equipment after the high-density polyethylene is melted, the temperature is reduced to 190 ℃, the stirring speed of 600r/min, and finally polyethylene wax, masterbatch and sodium nonylphenol polyoxyethylene ether sulfate are placed into the smelting equipment for 2 hours, and the temperature is kept for stirring for 1 hour.
(2) The following inner pipe layer raw materials are prepared according to parts by weight: 100 parts of high-density polyethylene, 20 parts of bisphenol A phosphite, 5 parts of EVA resin, 14 parts of nano titanium dioxide, 6 parts of benzoyl peroxide, 6 parts of polytetrafluoroethylene and 8 parts of carboxymethyl cellulose.
And (3) putting the high-density polyethylene particles into clear water, setting the rotating speed to be 120r/min, stirring and cleaning for 20min, conveying all raw materials into a drying box, drying at 65 ℃ for 1h, and conveying the dried raw materials into stirring equipment for mixing.
After the raw materials are mixed, the raw materials are sent into smelting equipment for melting and mixing, the high-density polyethylene is firstly put into the smelting equipment, the temperature is set to 210 ℃, the stirring speed is 300r/min, after the high-density polyethylene is melted, the bisphenol A phosphite, EVA resin, polytetrafluoroethylene and carboxymethyl cellulose are put into the smelting equipment, the temperature is increased to 240 ℃, the stirring speed is 600r/min, then the nano titanium dioxide and benzoyl peroxide are put into the smelting equipment, the smelting is carried out for 4 hours, and the heat preservation and stirring are carried out for 1 hour.
(3) Cooling the raw materials in a molten state to 160 ℃, sucking the raw materials into extrusion equipment by using a vacuum sucking machine, setting the extrusion temperature to 210 ℃, and setting the speed ratio of the sucking machine to the extrusion equipment to be 1:2, compressing and extruding to obtain a double-layer pipe blank, adhering the double-layer pipe blank on a traction screw, setting the traction speed to be 30 m/min, starting a tractor to slowly introduce the double-layer pipe blank into a vacuum setting machine, adsorbing an outer pipe layer on a die under the influence of vacuum pressure, extruding an inner pipe layer outwards under the mechanical thrust of internal water flow to be tightly adhered to the outer pipe layer, setting the cooling temperature to be 15 ℃, and setting after spraying and cooling to obtain the double-layer PE corrugated pipe.
The performance of the double-layer PE corrugated pipes in the above examples 1, 3, 4, 6 and 7 was tested, and the test results are shown in the table:
the embodiments of the present invention are not limited to the examples described above, and those skilled in the art can make various changes and modifications in form and detail without departing from the spirit and scope of the present invention, which are considered to fall within the scope of the present invention.
Claims (10)
1. A double-layer PE corrugated pipe preparation method for transmitting high-temperature sewage is characterized by comprising the following steps of: the double-layer PE corrugated pipe comprises a heat-resistant inner pipe layer and a compression-resistant outer pipe layer, and the preparation method comprises the following steps:
s1: separately preparing raw materials of the heat-resistant inner pipe layer and the compression-resistant outer pipe layer, placing polyethylene particles into a rotary table, blowing the polyethylene particles for 20 minutes by using compressed air, setting the rotating speed to 120r/min, and sending the raw materials into a drying box to be dried for 1 hour at 65 ℃;
s2: the raw materials dried in the step S1 are separately fed into smelting equipment for smelting and mixing, polyethylene particles are firstly put into the raw materials, reinforcing agents are put into the raw materials after the polyethylene particles are molten, other raw materials are finally put into the raw materials, the temperature is set to be 180-240 ℃, the rotating speed is 300-600 r/min, and the raw materials are stirred for 40-60 minutes in a heat-resistant inner pipe layer raw materials and pressure-resistant outer pipe layer raw materials in a molten state are obtained;
s3: cooling the raw materials of the heat-resistant inner pipe layer and the raw materials of the compression-resistant outer pipe layer which are in the molten state and obtained in the step S2 to 160 ℃, feeding the raw materials into a multi-layer co-extrusion device by using a vacuum material sucking machine, setting the extrusion temperature to be 200-215 ℃, and setting the speed ratio of the material sucking machine to the extrusion device to be 1: 2-3, compressing and extruding to obtain a double-layer pipe blank;
s4: adhering the double-layer tube blank extruded in the step S3 on a traction screw rod, starting a traction machine to introduce the double-layer tube blank into a vacuum setting machine, wherein the traction speed is 30-40 m/min;
s5: and (3) cooling the double-layer tube blank obtained in the step (S4) in a vacuum state, wherein the cooling temperature is 15-25 ℃, and extruding and shaping to obtain the double-layer PE corrugated tube.
2. A method for preparing a double-layer PE corrugated pipe for transporting high-temperature sewage according to claim 1, wherein: the heat-resistant inner pipe layer is prepared from the following raw materials in parts by weight: 10-20: 3 to 5: 10-20: 2 to 6:3 to 6:6 to 10.
3. A method for preparing a double-layer PE corrugated pipe for transporting high-temperature sewage according to claim 2, wherein: the compression-resistant outer pipe layer is prepared from the following raw materials in parts by weight: 20-40: 20-40: 10-20: 8-16: 10-20: 3-8: 3 to 6:4 to 10.
4. A method for preparing a double-layer PE bellows for transporting high-temperature sewage according to claim 3, characterized in that: the preparation method of the modified bamboo charcoal polyethylene particles comprises the steps of adding PE resin, modified bamboo charcoal powder, paraffin oil, oxidized polyethylene wax and a silane coupling agent into a high-speed stirrer for stirring and mixing, extruding and granulating the mixed materials through a double-screw extruder, wherein the mass ratio of the raw materials is 50:5:5: 4-8: 1 to 5.
5. A method for preparing a double-layer PE corrugated pipe for transporting high-temperature sewage according to claim 2, wherein: the heat-resistant agent is one or more of tetrabutyl titanate or bisphenol A phosphite.
6. The method for preparing the double-layer PE corrugated pipe for transmitting high-temperature sewage according to claim 5, wherein the method comprises the following steps: the corrosion inhibitor is one or more of thioglucoside, bisphenol A type epoxy resin or EVA resin.
7. The method for preparing the double-layer PE corrugated pipe for transmitting high-temperature sewage according to claim 6, wherein: the antibacterial agent is one or more of nano silver or nano titanium dioxide.
8. A method for preparing a double-layer PE bellows for transporting high-temperature sewage according to claim 3, characterized in that: the toughening agent is one or more of high-density polyethylene fiber, thermoplastic elastomer SBS or nanometer boron fiber.
9. A method for preparing a double-layer PE corrugated pipe for transporting high-temperature sewage according to claim 2, wherein: carboxymethyl cellulose in the raw materials is used as a compatilizer.
10. A method for preparing a double-layer PE corrugated pipe for transporting high-temperature sewage according to claim 1, wherein: and in the vacuum setting process, the heat-resistant inner pipe layer is tightly attached to the inner side of the compression-resistant outer pipe layer under the influence of water flow pressure.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107511A (en) * | 2010-12-21 | 2011-06-29 | 河南康泰塑业科技有限公司 | Method for producing temperature-resisting, anti-seismic and antibacterial compound polyethylene water supply pipe |
| CN102417650A (en) * | 2011-11-28 | 2012-04-18 | 浙江伟星新型建材股份有限公司 | Wear-resistant crosslinked PE (Polyethylene) composite pipe and manufacturing method thereof |
| CN102516725A (en) * | 2011-12-07 | 2012-06-27 | 深圳市科聚新材料有限公司 | High temperature resistant hydrolyzed PBT (polybutylene terephthalate) composite material and preparation method thereof |
| DE102015206943A1 (en) * | 2014-09-01 | 2016-03-03 | Kangtai Plastic Technology Group Co., Ltd. | A tube of modified mixture of polyethylene and polyvinyl chloride and process for its preparation |
| CN107325365A (en) * | 2017-06-23 | 2017-11-07 | 云南瀚达塑业科技开发有限公司 | Environment-friendly composite low energy consumption PE tubing production technologies |
| WO2019165539A1 (en) * | 2018-02-28 | 2019-09-06 | Lupke Manfred Arno Alfred | Corrugated plastic pipe reinforced with glass reinforced polymers |
| CN110272574A (en) * | 2019-06-26 | 2019-09-24 | 南京乐洁新型材料有限公司 | A kind of production technology promoting PE solid wall pipe weatherability |
| AU2020102713A4 (en) * | 2020-06-15 | 2020-12-03 | Kangtai Plastic Science & Technology Group Co. Ltd. | Double-Color Double-Wall Corrugated Pipe and Preparation Method Therefor |
| CN112344109A (en) * | 2020-11-06 | 2021-02-09 | 贵州黔峰实业有限公司 | Preparation and production process of modified polypropylene flat-wall reinforced corrugated pipe |
-
2023
- 2023-01-05 CN CN202310012263.3A patent/CN116001233B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107511A (en) * | 2010-12-21 | 2011-06-29 | 河南康泰塑业科技有限公司 | Method for producing temperature-resisting, anti-seismic and antibacterial compound polyethylene water supply pipe |
| CN102417650A (en) * | 2011-11-28 | 2012-04-18 | 浙江伟星新型建材股份有限公司 | Wear-resistant crosslinked PE (Polyethylene) composite pipe and manufacturing method thereof |
| CN102516725A (en) * | 2011-12-07 | 2012-06-27 | 深圳市科聚新材料有限公司 | High temperature resistant hydrolyzed PBT (polybutylene terephthalate) composite material and preparation method thereof |
| DE102015206943A1 (en) * | 2014-09-01 | 2016-03-03 | Kangtai Plastic Technology Group Co., Ltd. | A tube of modified mixture of polyethylene and polyvinyl chloride and process for its preparation |
| CN107325365A (en) * | 2017-06-23 | 2017-11-07 | 云南瀚达塑业科技开发有限公司 | Environment-friendly composite low energy consumption PE tubing production technologies |
| WO2019165539A1 (en) * | 2018-02-28 | 2019-09-06 | Lupke Manfred Arno Alfred | Corrugated plastic pipe reinforced with glass reinforced polymers |
| CN110272574A (en) * | 2019-06-26 | 2019-09-24 | 南京乐洁新型材料有限公司 | A kind of production technology promoting PE solid wall pipe weatherability |
| AU2020102713A4 (en) * | 2020-06-15 | 2020-12-03 | Kangtai Plastic Science & Technology Group Co. Ltd. | Double-Color Double-Wall Corrugated Pipe and Preparation Method Therefor |
| CN112344109A (en) * | 2020-11-06 | 2021-02-09 | 贵州黔峰实业有限公司 | Preparation and production process of modified polypropylene flat-wall reinforced corrugated pipe |
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