CN102532829A - Method for preparing high-temperature resistant plastic pipes for transferring hot spring - Google Patents
Method for preparing high-temperature resistant plastic pipes for transferring hot spring Download PDFInfo
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- CN102532829A CN102532829A CN2012100236848A CN201210023684A CN102532829A CN 102532829 A CN102532829 A CN 102532829A CN 2012100236848 A CN2012100236848 A CN 2012100236848A CN 201210023684 A CN201210023684 A CN 201210023684A CN 102532829 A CN102532829 A CN 102532829A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/913—Cooling of hollow articles of tubular films externally
Abstract
The invention relates to a method for preparing high-temperature resistant plastic pipes for transferring hot spring. The method comprises the steps of: taking 60-69 parts by weight of polyethylene terephthalate (PET) bottle reclaimed materials as raw materials, adding 6.5-10.5 parts by weight of ethylene-ethyl acrylate copolymer, 23-30 parts by weight of ethylene-octylene embedded copolymer, 0.5-0.9 parts by weight of zinc oxide and 0.7-1.2 parts by weight of tri (2,4-ditert-butylphenyl) phosphate, pulverizing, drying, stirring and mixing, extruding and granulating by a twin screw, extruding and shaping by a single screw, pulling, cooling, shaping and cutting. A Vicat softening temperature of the pipes prepared by the method can achieve to 158 DEG C; when the pipes are used for a long time, the temperature can achieve to 105 DEG C; the pipe is high in compression and tension strength, is low in thermal coefficient and is good in thermal insulation property, and is suitable for the field of transferring the high-temperature hot spring.
Description
Technical field
The present invention relates to the preparation method of plastic pipe, a kind of specifically preparation method who carries hot spring with high-temperature resistance plastice tubing.
Background technology
The hot spring of China is put about 2400 many places, and ground hot springs such as Yunnan, Guangdong, Fujian, Zhejiang, Jiangxi, Tibet, Taiwan are more, and wherein maximum is Yunnan, and hot spring 400 many places are arranged.Along with the development and application of hot spring resource, hot spring delivery tubing demand increases day by day.Hot spring delivery tubing is mainly common steel tube, stainless steel tube, copper pipe etc.Common steel tube is carried tubing as hot spring, has characteristics such as ultimate compression strength height, linear expansivity be little, high temperature resistant; Shortcoming is: the tubing thermal conductivity is high, and heat-insulating property is poor, and corrosion-resistant degree is poor, and work-ing life is shorter, and occurs " red water " phenomenon of corrosion easily, influences hygienic quality.Stainless steel tube is as hot spring delivery tubing, have high temperature resistant, mechanical property good, linear expansivity is little, advantage such as corrosion-resistant; Shortcoming is: because the stainless steel tube tube wall is thinner, resistance to compression relatively, tension physical strength are lower, when particularly receiving thermal stresses or travelling load big, and compressive deformation and fractureing easily, and cost is higher, and heat-insulating property is poor.Copper pipe is carried tubing as hot spring, and tensile strength is good, and tube wall is smooth, and resistance to flow is little, and is not perishable; The shortcoming that exists is: copper pipe has scale formation, and the pig copper is green easily in the water surrounding that contains sulfurous gas and carbonic acid gas, influences hygienic quality, and thermal water itself is exactly sulfurous gas and the active place of carbonic acid gas.
In recent years; Domestic and international researchist and manufacturing enterprise develop plastic pipe in succession and are used for the hot spring delivery, mainly contain: polyvinyl chloridepipe (PVC-U pipe), polypropylene random copolymer pipe (PPR pipe), vinylformic acid-butadiene-styrene pipe (ABS pipe) and PAP etc.Compare with metal tube, PVC-U pipe, PPR pipe, three kinds of plastic pipe advantages of ABS pipe be non-scaling, corrosion-resistant, chemicalstability is high, inner wall smooth, resistance to flow are little, good heat insulating, in light weight, plasticity-strong, be convenient to complex-terrain installs; Shortcoming is: heat resisting temperature is on the low side, and the life-time service temperature is 45-70 ℃, and linear expansivity is bigger, and resistance to compression and tensile strength are low, damaged by machinery or pointed object.PAP is compound on the thin aluminum pipe inside and outside adopting high density polyethylene(HDPE) or crosslinked polyethylene usually, and its advantage is that bending is not arbitrarily limited by landform and indoor bent angle, installs and lays conveniently; Shortcoming is: connection can not be used welding and adhesion, the necessary corrosion resistant metal pipe fitting that uses special use, and its accessory cost is high, and expanding with heat and contract with cold in two kinds of unlike material joint portions, the back is easy to disconnect.At present, during PVC-U pipe, PPR pipe, ABS pipe and PAP are only applicable to, the low temperature hot spring carries, still fail to satisfy the life-time service temperature and be 75-98 ℃ high temperature hot spring and carry request for utilization.Retrieval number of patents document and the RP of publishing; It is basic raw material that Shang Weijian adopts polyethylene terephthalate bottle reclaimed material (PET bottle reclaimed material); Add ethylene-ethyl acrylate copolymer (EEA), ethylene-octene block type multipolymer (OBC), zinc oxide, three (2; The 4-di-tert-butyl-phenyl) phosphorous acid ester, preparation high temperature hot spring is carried the report of plastic pipe.
Summary of the invention
Exist the life-time service temperature on the low side in order to overcome existing plastics tubing, resistance to compression and tensile strength are poor, meet defectives such as the easy damage of machinery or pointed object, the invention provides a kind of high temperature hot spring and carry the preparation method with plastic pipe.Present method is a basic raw material with polyethylene terephthalate bottle reclaimed material (PET bottle reclaimed material); Add ethylene-ethyl acrylate copolymer (EEA), ethylene-octene block type multipolymer (OBC), zinc oxide, three (2; The 4-di-tert-butyl-phenyl) phosphorous acid ester, through pulverize, dry, mix, twin screw is extruded pelletizing, single screw extrusion molding, traction cooling, typing cutting technique process.
Adopt the tubing of present method preparation, vicat softening temperature reaches 158 ℃, and the life-time service temperature reaches 105 ℃, and resistance to compression and tensile strength are high, and thermal conductivity is low, and good heat insulating is applicable to fields such as high temperature hot spring conveying.
For the following technical scheme that realizes that the object of the invention adopts:
Prescription (weight part meter)
Polyethylene terephthalate bottle reclaimed material (PET bottle reclaimed material) 60～69
Ethylene-ethyl acrylate copolymer (EEA) 6.5～10.5
Ethylene-octene block type multipolymer (OBC) 23～30
Zinc oxide 0.5～0.9
Three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester 0.7～1.2
The preparation method
After will reclaiming PET bottle removal of contamination and dust, place crusher, be ground into the reclaimed materials fragment about 2.5mm * 2.5mm; Put into the electric heating constant temperature air dry oven, 130 ± 1 ℃ of controlled temperature are behind the dry 5h; Weighing places impeller, control stirrer rotating speed 250r/min, 108 ± 1 ℃ of temperature; Add EEA, OBC, zinc oxide, three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester after measuring successively, mix 10 min and become compound; Compound is placed the Vented Co-rotating Parallel Twin-screw Extruder hopper; Control extruder barrel temperature: 188～193 ℃ in I district, 205～210 ℃ in II district, 224～230 ℃ in III district, 240～245 ℃ in IV district, 252～257 ℃ in V district, 258～262 ℃ in VI district, 257～260 ℃ in VII district; Die head temperature: 255～258 ℃, extrude pelletizing and become particulate material; Particulate material is placed single screw rod plastic tubing extrusion shaping machine hopper; Control tubing extrusion shaping machine barrel temperature: 195～200 ℃ in I district, 208～214 ℃ in II district, 226～232 ℃ in III district, 242～247 ℃ in IV district, 255～260 ℃ in V district, 253～258 ℃ in VI district, 253～256 ℃ in VII district; Die head temperature: 250～253 ℃, carry out extrusion moulding; The tubing of extruding is drawn in cooling tank, 55～65 ℃ of controlled chilling water temps, tubing pulling speed 2～3m/min cuts into plastic pipe behind the cooling and shaping.
Ethylene-ethyl acrylate copolymer of the present invention (EEA), wherein the ethyl propenoate massfraction is 23%.
Ethylene-octene block type multipolymer of the present invention (OBC), its density are 0.866g/cm
3, melt mass flow rate is 5.4g/10min.
Zinc oxide of the present invention, its particle diameter are that 2-5 micron, purity are 99.5%.
The invention has the beneficial effects as follows: 1. adopting EEA is compatilizer, and OBC is a toughening material, and the PET bottle reclaimed material is carried out the compatibilization and toughening modification, increases substantially the resistance to impact shock and the compression and tensile strength of PET/OBC tubing; 2. adopting zinc oxide is nucleator, and the PET/OBC intermingling material is carried out the nucleation modification, has improved the crystallization velocity of PET/OBC intermingling material, has shortened the extrusion moulding cycle of PET/OBC tubing; 3. adopting three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester is oxidation inhibitor, has improved the antioxidant property and the hot-work stability of PET/OBC intermingling material in molding process; 4. the tubing of present method preparation, vicat softening temperature reaches 158 ℃, and the life-time service temperature reaches 105 ℃, resistance to compression and tensile strength height, thermal conductivity is low, and good heat insulating is applicable to fields such as high temperature hot spring conveying.
Embodiment
Embodiment 1:
After will reclaiming PET bottle removal of contamination and dust, place crusher, be ground into the reclaimed materials fragment about 2.5mm * 2.5mm; Put into the electric heating constant temperature air dry oven, 130 ℃ of controlled temperature are behind the dry 5h; Take by weighing PET bottle reclaimed material fragment 65Kg and place impeller; Control stirrer rotating speed 250r/min, 108 ℃ of temperature, adding the ethyl propenoate massfraction successively and be 23% EEA8.5 Kg, density is 0.866g/cm
3Melt mass flow rate is that OBC26Kg, the particle diameter of 5.4g/10min is that 2-5 micron purity is 99.5% zinc oxide 0.7 Kg, three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester 0.9 Kg, mixes 10 min and becomes compound; Compound is placed the Vented Co-rotating Parallel Twin-screw Extruder hopper; Control extruder barrel temperature: 188 ℃ in I district, 210 ℃ in II district, 228 ℃ in III district, 245 ℃ in IV district, 255 ℃ in V district, 262 ℃ in VI district, 260 ℃ in VII district; Die head temperature: 258 ℃, extrude pelletizing and become particulate material; Particulate material is placed single screw rod plastic tubing extrusion shaping machine hopper; Control tubing extrusion shaping machine barrel temperature: 200 ℃ in I district, 214 ℃ in II district, 230 ℃ in III district, 245 ℃ in IV district, 260 ℃ in V district, 258 ℃ in VI district, 255 ℃ in VII district; Die head temperature: 253 ℃, carry out extrusion moulding; The tubing of extruding is drawn in cooling tank, 65 ℃ of controlled chilling water temps, tubing pulling speed 2m/min cuts into plastic pipe behind the cooling and shaping.
Embodiment 2:
After will reclaiming PET bottle removal of contamination and dust, place crusher, be ground into the reclaimed materials fragment about 2.5mm * 2.5mm; Put into the electric heating constant temperature air dry oven, 129 ℃ of controlled temperature are behind the dry 5h; Take by weighing PET bottle reclaimed material fragment 60Kg and place impeller; Control stirrer rotating speed 250r/min, 107 ℃ of temperature, adding the ethyl propenoate massfraction successively and be 23% EEA6.5 Kg, density is 0.866g/cm
3Melt mass flow rate is that OBC23Kg, the particle diameter of 5.4g/10min is that 2-5 micron purity is 99.5% zinc oxide 0.5 Kg, three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester 0.7Kg, mixes 10 min and becomes compound; Compound is placed the Vented Co-rotating Parallel Twin-screw Extruder hopper; Control extruder barrel temperature: 193 ℃ in I district, 205 ℃ in II district, 230 ℃ in III district, 240 ℃ in IV district, 257 ℃ in V district, 260 ℃ in VI district, 258 ℃ in VII district; Die head temperature: 255 ℃, extrude pelletizing and become particulate material; Particulate material is placed single screw rod plastic tubing extrusion shaping machine hopper; Control tubing extrusion shaping machine barrel temperature: 195 ℃ in I district, 208 ℃ in II district, 230 ℃ in III district, 245 ℃ in IV district, 258 ℃ in V district, 255 ℃ in VI district, 254 ℃ in VII district; Die head temperature: 252 ℃, carry out extrusion moulding; The tubing of extruding is drawn in cooling tank, 55 ℃ of controlled chilling water temps, tubing pulling speed 3m/min cuts into plastic pipe behind the cooling and shaping.
Embodiment 3:
After will reclaiming PET bottle removal of contamination and dust, place crusher, be ground into the reclaimed materials fragment about 2.5mm * 2.5mm; Put into the electric heating constant temperature air dry oven, 131 ℃ of controlled temperature are behind the dry 5h; Take by weighing PET bottle reclaimed material fragment 69Kg and place impeller; Control stirrer rotating speed 250r/min, 109 ℃ of temperature, adding the ethyl propenoate massfraction successively and be 23% EEA10.5 Kg, density is 0.866g/cm
3Melt mass flow rate is that OBC30Kg, the particle diameter of 5.4g/10min is that 2-5 micron purity is 99.5% zinc oxide 0.9 Kg, three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester 1.2 Kg, mixes 10 min and becomes compound; Compound is placed the Vented Co-rotating Parallel Twin-screw Extruder hopper; Control extruder barrel temperature: 190 ℃ in I district, 208 ℃ in II district, 228 ℃ in III district, 243 ℃ in IV district, 255 ℃ in V district, 258 ℃ in VI district, 260 ℃ in VII district; Die head temperature: 257 ℃, extrude pelletizing and become particulate material; Particulate material is placed single screw rod plastic tubing extrusion shaping machine hopper; Control tubing extrusion shaping machine barrel temperature: 198 ℃ in I district, 212 ℃ in II district, 228 ℃ in III district, 247 ℃ in IV district, 257 ℃ in V district, 256 ℃ in VI district, 253 ℃ in VII district; Die head temperature: 250 ℃, carry out extrusion moulding; The tubing of extruding is drawn in cooling tank, 60 ℃ of controlled chilling water temps, tubing pulling speed 2.5m/min cuts into plastic pipe behind the cooling and shaping.
Claims (9)
1. preparation method who carries hot spring with high-temperature resistance plastice tubing is characterized in that:
Prescription
Polyethylene terephthalate bottle reclaimed material 60～69 weight parts; Ethylene-ethyl acrylate copolymer 6.5～10.5 weight parts, ethylene-octene block type multipolymer 23～30 weight parts, zinc oxide 0.5～0.9 weight part; Three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester 0.7～1.2 weight part;
The preparation method
1) will reclaim the polyethylene terephthalate bottle and place crusher to be ground into the reclaimed materials fragment, it is dry to put into the electric heating constant temperature air dry oven;
2) dried reclaimed materials fragment is placed impeller, add ethylene-ethyl acrylate copolymer, ethylene-octene block type multipolymer, zinc oxide, three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester successively, mix into compound;
3) compound is placed the Vented Co-rotating Parallel Twin-screw Extruder hopper, control barrel temperature and die head temperature are extruded pelletizing and are become particulate material;
4) particulate material is placed single screw rod plastic tubing extrusion shaping machine hopper, control barrel temperature and die head temperature, extrusion moulding is a tubing;
5) tubing of extruding is drawn in cooling tank, controlled chilling water temp and tubing pulling speed cut into plastic pipe behind the cooling and shaping.
2. conveying hot spring according to claim 1 is with the preparation method of high-temperature resistance plastice tubing, and the massfraction that it is characterized in that ethyl propenoate in the described ethylene-ethyl acrylate copolymer is 23%.
3. conveying hot spring according to claim 1 is characterized in that described ethylene-octene block type multipolymer with the preparation method of high-temperature resistance plastice tubing, and its density is 0.866g/cm
3, melt mass flow rate is 5.4g/10min.
4. conveying hot spring according to claim 1 is characterized in that described zinc oxide with the preparation method of high-temperature resistance plastice tubing, and its particle diameter is that 2-5 micron, purity are 99.5%.
5. conveying hot spring according to claim 1 is with the preparation method of high-temperature resistance plastice tubing, and the temperature that it is characterized in that described electric heating constant temperature air dry oven is 130 ± 1 ℃, and be 5h time of drying.
6. conveying hot spring according to claim 1 is with the preparation method of high-temperature resistance plastice tubing, and the rotating speed that it is characterized in that described impeller is that 250r/min, temperature are 108 ± 1 ℃, and the time of mixing is 10min.
7. conveying hot spring according to claim 1 is with the preparation method of high-temperature resistance plastice tubing; It is characterized in that described Vented Co-rotating Parallel Twin-screw Extruder barrel temperature is 188～193 ℃ in I district, 205～210 ℃ in II district, 224～230 ℃ in III district, 240～245 ℃ in IV district, 252～257 ℃ in V district, 258～262 ℃ in VI district, 257～260 ℃ in VII district, die head temperature is 255～258 ℃.
8. conveying hot spring according to claim 1 is with the preparation method of high-temperature resistance plastice tubing; It is characterized in that described single screw rod plastic tubing extrusion shaping machine barrel temperature is 195～200 ℃ in I district, 208～214 ℃ in II district, 226～232 ℃ in III district, 242～247 ℃ in IV district, 255～260 ℃ in V district, 253～258 ℃ in VI district, 253～256 ℃ in VII district, die head temperature is 250～253 ℃.
9. conveying hot spring according to claim 1 is characterized in that with the preparation method of high-temperature resistance plastice tubing temperature of cooling water is 55～65 ℃ in the described cooling tank, and the tubing pulling speed is 2～3m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100236848A CN102532829B (en) | 2012-02-03 | 2012-02-03 | Method for preparing high-temperature resistant plastic pipes for transferring hot spring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100236848A CN102532829B (en) | 2012-02-03 | 2012-02-03 | Method for preparing high-temperature resistant plastic pipes for transferring hot spring |
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| Publication Number | Publication Date |
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| CN102532829A true CN102532829A (en) | 2012-07-04 |
| CN102532829B CN102532829B (en) | 2013-07-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746468A (en) * | 2012-07-31 | 2012-10-24 | 福建师范大学 | Preparation method of olefin block copolymer (OBC) through melt grafting of acrylic acid (AA) |
| CN103951869A (en) * | 2014-04-30 | 2014-07-30 | 沈阳三普高分子材料有限公司 | Silane crosslinked POE (polyolefin elastomer)/EAA (ethylene acrylic acid) blend and preparation method thereof |
| CN104962027A (en) * | 2015-07-27 | 2015-10-07 | 福建晟扬管道科技有限公司 | Elastomer alloy material and preparation method thereof |
| CN106566051A (en) * | 2016-11-03 | 2017-04-19 | 苏州圣鑫莱新材料有限公司 | Shock-resistant and corrosion-resistant PE plastic pipe |
| CN112895383A (en) * | 2021-02-05 | 2021-06-04 | 河北鹏博通信设备有限公司 | Grating pipe processing technology |
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| CN101781446A (en) * | 2010-03-22 | 2010-07-21 | 福建师范大学 | Method for preparing plastic pipe fitting from polyethylene terephthalate (PET) bottle reclaimed material |
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