CN105065792A - Cold-resistant high impact strength unplasticized polyvinyl chloride (PVC-U) composite pipe and preparation method thereof - Google Patents
Cold-resistant high impact strength unplasticized polyvinyl chloride (PVC-U) composite pipe and preparation method thereof Download PDFInfo
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- CN105065792A CN105065792A CN201510468226.9A CN201510468226A CN105065792A CN 105065792 A CN105065792 A CN 105065792A CN 201510468226 A CN201510468226 A CN 201510468226A CN 105065792 A CN105065792 A CN 105065792A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/06—Hoses, i.e. flexible pipes made of rubber or flexible plastics with homogeneous wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
- F16L11/125—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting non-inflammable or heat-resistant hoses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
-
- 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
- B29C2948/92009—Measured parameter
- B29C2948/92209—Temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a cold-resistant high impact strength unplasticized polyvinyl chloride (PVC-U) composite pipe and a preparation method thereof. The pipe is of a three-layer structure which sequentially includes an inner PVC layer, a middle foaming polyethylene (PE) layer and an outer PE layer. The preparation method includes the following steps that raw materials of the PVC layer are uniformly mixed, added into a PVC pipe production line and subjected to extrusion, setting, cooling, pulling, cutting and the like, so that an inner pipe layer is obtained; the middle foaming PE layer is composited on the inner PVC layer through a composite production line; meanwhile, the outer PE layer is composited on the middle layer, and a finished product is obtained. By means of the cold-resistant high impact strength PVC-U composite pipe and the preparation method thereof, cold resistance, shock resistance and thermal insulation property of the pipe are extremely improved; the adaptability of the plastic pipe to the environment is enhanced; meanwhile, the defect of poor cold resistance of the PVC-U pipe is overcome; excellent properties of PVC and PE pipes are integrated.
Description
Technical field
The invention belongs to plastic tube technical field, especially relate to a kind of cold-resistant high-impact PVC-U composite pipe and preparation method thereof.
Background technique
Along with the advanced irrigation technique such as drip irrigation and spray irrigation, microspray irrigation is in the fast development of China, the tubing matched with it have also been obtained fast development, especially PVC-U tubing, PVC-U tubing have lightweight, corrosion-resistant, the advantage such as resistance to water-flow is little, energy saving, installation is fast, cost is low is widelyd popularize, and is a part indispensable in water-saving irrigation.But, there is the problems such as winter hardiness, heat insulating ability and low temperature impact performance difference in current PVC-U tubing, especially northeastward and the performance of colder place particularly outstanding, such as to break and the phenomenons such as bursting by freezing appear in buried pipeline during tubing handling, this has had a strong impact on the normal operation of irrigation system to a certain extent, increase the cost of investment of system, therefore, a kind of cold-resistant high-impact PVC-U composite pipe of exploitation and preparation method thereof seems particularly urgent simultaneously.
Summary of the invention
The present invention is mainly for defects such as PVC-U tubing low-temperature flexibility, winter hardiness and heat insulating ability differences, provide a kind of cold-resistant high-impact PVC-U composite pipe, this pipeline has obvious winter hardiness and low temperature impact performance, northeast and the irrigation system in colder place and the normal operation of city planting ductwork are played a role, also reduces cost of investment simultaneously.
The technological scheme adopted is:
A kind of cold-resistant high-impact PVC-U composite pipe, this composite pipe is three-decker, is followed successively by PVC internal layer, foaming PE mesosphere and PE skin, and described PVC internal layer is prepared by each component of following parts by weight:
Polyvinyl chloride resin 100 parts; Stabilizer 3-3.5 part; Filler 8-12 part; Oiling agent 0.3-0.65 part; Processing aid 1.3-1.5 part; Plasticizer 2.2-2.8 part; Carbon black 0.06-0.1 part.
Preferably, described PVC internal layer is prepared by each component of following parts by weight:
Polyvinyl chloride resin 100 parts; Stabilizer 3.1 parts; Filler 9 parts; Oiling agent 0.4 part; Processing aid 1.35 parts; Plasticizer 2.3 parts; Carbon black 0.1 part.
Preferred, described PVC internal layer is prepared by each component of following parts by weight:
Polyvinyl chloride resin 100 parts; Calcium zinc stabilizer 3.1 parts; Precipitated calcium carbonate filler 9 parts; Stearic acid and/or 0.4 part, PE wax; Processing aid ACR1.35 part; Toughening agent C PE2.3 part; Carbon black 0.1 part.
ACR (Acryliccopolymer) is acrylate rubber, and CPE is haloflex.
Preferably, described foaming PE mesosphere is microvesicle cellular structure, and it mainly plays the effect of insulation and buffering.
Preferably, described PE skin selects 100 level high-density polyethylenes, and it mainly plays scratch-resistant effect.
Preferably, this PVC-U tubing each layer thickness difference from inside to outside: 2.1mm-2.3mm, 2.2mm-2.5mm, 1.9mm-2.1mm, most preferred, each layer thickness is respectively 2.3mm, 2.4mm, 2.0mm.
The present invention also provides a kind of method preparing any one cold-resistant high-impact PVC-U composite pipe above-mentioned, and the method comprises the steps:
(1) by polyvinyl chloride resin powder, stabilizer, filler, oiling agent, processing aid, plasticizer and carbon black precise in proportion, then join in mixing device that to carry out heat mixed and cold mixed sequentially successively;
(2) material that step (1) mixes is joined PVC production line by automatic charging machine, through extruding, shaping, cool, draw, cutting action obtains Inner tubing layers;
(3) by composite foamed production line composite foamed PE mesosphere on step (2) PVC internal layer, compound one deck PE is outer on the intermediate layer simultaneously, namely obtains finished product.
Preferably, the mixed temperature of heat is 125 DEG C in step (1), and heat is done time 20-25min, and cold mixed temperature is 45 DEG C, the cold 10-15min that does time.
Preferably, barrel one section in step (2), two sections, three sections and four sections of temperature are respectively 180 DEG C, 175 DEG C, 170 DEG C, 165 DEG C, head one section, two sections, and three sections and four sections of temperature are respectively 165 DEG C, 175 DEG C, 180 DEG C, 185 DEG C.
Preferably, the blowing temperature in foaming PE mesosphere is 130-175 DEG C.
Preferably, the outer field mold temperature of PE is 150-220 DEG C.
The advantage that the present invention has and good effect are: the present invention is by compound and foam process, improve the winter hardiness of tubing, impact resilience and thermal insulation property, this kind of tubing is prepared into pipeline, the destruction that pipeline causes because of environmental factor is decreased in using process, extend the working life of pipeline, reduce the holistic cost of pipe-line system.
Embodiment
Embodiment 1
A kind of cold-resistant high-impact PVC-U composite pipe, comprises three-decker, PVC internal layer, foaming PE mesosphere and PE skin, and wherein, PVC internal layer is prepared by each component of following parts by weight:
Polyvinyl chloride resin 100 parts; Calcium zinc stabilizer 3.1 parts; Precipitated calcium carbonate filler 9 parts; Stearic acid and/or 0.4 part, PE wax; Processing aid ACR1.35 part; Toughening agent C PE2.3 part; Carbon black 0.1 part.
The preparation method of this tubing is:
First, each component of preparation PVC internal layer is weighed, then joins in batch mixing pot successively according to sequencing, first carry out heat and mix, the mixed temperature 125 DEG C of heat, mixing 20-25min, then carry out cold mixed, cold mixed temperature 45 C, mixing 10-15min.
Secondly, the material mixed is joined PVC production line by automatic charging machine, through extruding, sizing, cooling, traction, the operations such as cutting obtain Inner tubing layers, in this step, barrel temperature is divided into four sections, barrel one section, two sections, three sections, four sections of temperature are respectively 180 DEG C, 175 DEG C, 170 DEG C, 165 DEG C, head temperature is divided into four sections, head one section, two sections, three sections, four sections of temperature are respectively 165 DEG C, 175 DEG C, 180 DEG C, 185 DEG C.
Finally, by composite foamed production line, the foaming PE mesosphere of limit foaming compound is extruded in PVC internal layer top, simultaneously, compound one deck has 100 level high-density polyethylenes skins of high Scratch Resistance energy on the intermediate layer, namely obtain finished product, outer field mold temperature is 150-220 DEG C, and the blowing temperature in mesosphere is 130-175 DEG C.In gained finished product, outer layer thickness 2.0mm, intermediate layer thickness is 2.4mm, and internal layer thickness is 2.3mm.
Embodiment 2
In this embodiment, layer of PVC is prepared by each component of following parts by weight:
Polyvinyl chloride resin 100 parts; Calcium zinc stabilizer 3.1 parts; Precipitated calcium carbonate filler 11 parts; 0.5 part, PE wax; Processing aid ACR1.35 part; Toughening agent C PE2.3 part; Carbon black 0.1 part.
Other are identical with embodiment 1.
Carry out erosion-resisting characteristics to the tubing prepared by said method, thermal insulation property and cold tolerance test, result is as follows:
Above 2 embodiments of the present invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (10)
1. a cold-resistant high-impact PVC-U composite pipe, is characterized in that: this composite pipe is three-decker, is followed successively by PVC internal layer, foaming PE mesosphere and PE skin, and described PVC internal layer is prepared by each component of following parts by weight:
Polyvinyl chloride resin 100 parts; Stabilizer 3-3.5 part; Filler 8-12 part; Oiling agent 0.3-0.65 part; Processing aid 1.3-1.5 part; Plasticizer 2.2-2.8 part; Carbon black 0.06-0.1 part.
2. cold-resistant high-impact PVC-U composite pipe according to claim 1, is characterized in that: described PVC internal layer is prepared by each component of following parts by weight:
Polyvinyl chloride resin 100 parts; Stabilizer 3.1 parts; Filler 9 parts; Oiling agent 0.4 part; Processing aid 1.35 parts; Plasticizer 2.3 parts; Carbon black 0.1 part.
3. cold-resistant high-impact PVC-U composite pipe according to claim 2, is characterized in that: described PVC internal layer is prepared by each component of following parts by weight:
Polyvinyl chloride resin 100 parts; Calcium zinc stabilizer 3.1 parts; Precipitated calcium carbonate filler 9 parts; Stearic acid and/or 0.4 part, PE wax; Processing aid ACR1.35 part; Toughening agent C PE2.3 part; Carbon black 0.1 part.
4., according to the arbitrary described cold-resistant high-impact PVC-U composite pipe of claim 1-3, it is characterized in that: described foaming PE mesosphere is microvesicle cellular structure.
5. cold-resistant high-impact PVC-U composite pipe according to claim 4, is characterized in that: described PE skin selects 100 level high-density polyethylenes.
6. prepare the method for the arbitrary described cold-resistant high-impact PVC-U composite pipe of claim 1-5, it is characterized in that, comprise the steps:
(1) by polyvinyl chloride resin powder, stabilizer, filler, oiling agent, processing aid, plasticizer and carbon black precise in proportion, then join in mixing device that to carry out heat mixed and cold mixed sequentially successively;
(2) material that step (1) mixes is joined PVC production line by automatic charging machine, through extruding, shaping, cool, draw, cutting action obtains Inner tubing layers;
(3) by composite production line composite foamed PE mesosphere on step (2) PVC internal layer, compound one deck PE is outer on the intermediate layer simultaneously, namely obtains finished product.
7. method according to claim 6, is characterized in that: the mixed temperature of heat is 125 DEG C in step (1), and heat is done time 20-25min, and cold mixed temperature is 45 DEG C, the cold 10-15min that does time.
8. method according to claim 6, is characterized in that: in step (2), barrel temperature is 180-165 DEG C, and head temperature is 160-185 DEG C; Preferably, barrel temperature is divided into four sections, barrel one section, two sections, three sections, and four sections of temperature are respectively 180 DEG C, 175 DEG C, 170 DEG C, 165 DEG C, and head temperature is divided into four sections, head one section, two sections, three sections, and four sections of temperature are respectively 165 DEG C, 175 DEG C, 180 DEG C, 185 DEG C.
9. method according to claim 6, is characterized in that: the blowing temperature in foaming PE mesosphere is 130-175 DEG C.
10. method according to claim 6, is characterized in that: the outer field mold temperature of PE is 150-220 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510468226.9A CN105065792A (en) | 2015-07-31 | 2015-07-31 | Cold-resistant high impact strength unplasticized polyvinyl chloride (PVC-U) composite pipe and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510468226.9A CN105065792A (en) | 2015-07-31 | 2015-07-31 | Cold-resistant high impact strength unplasticized polyvinyl chloride (PVC-U) composite pipe and preparation method thereof |
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| CN105065792A true CN105065792A (en) | 2015-11-18 |
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| CN201510468226.9A Pending CN105065792A (en) | 2015-07-31 | 2015-07-31 | Cold-resistant high impact strength unplasticized polyvinyl chloride (PVC-U) composite pipe and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105860229A (en) * | 2016-06-15 | 2016-08-17 | 潘海云 | Core-layer foamed composite tubular product and preparation process thereof |
| CN106188984A (en) * | 2016-08-28 | 2016-12-07 | 肖丽燕 | A kind of low temperature resistant antivibration fretting map PVC board its preparation method |
| CN106641585A (en) * | 2016-12-20 | 2017-05-10 | 浙江伟星新型建材股份有限公司 | PPR insulating composite tube for home decoration and preparation method of composite tube |
| CN108794922A (en) * | 2018-05-31 | 2018-11-13 | 安徽玉发塑业有限公司 | The drainpipe of high impact strength under a kind of low temperature environment |
| CN111059365A (en) * | 2019-11-12 | 2020-04-24 | 中兆建工集团有限公司 | Underground long-distance water delivery pipe for municipal engineering and production process thereof |
| JP2021143731A (en) * | 2020-03-12 | 2021-09-24 | 積水化学工業株式会社 | Multilayer pipe |
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| CN2477920Y (en) * | 2000-12-15 | 2002-02-20 | 上海宝洋塑业有限公司 | Foamed thermal insulating plastic composite tube |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105860229A (en) * | 2016-06-15 | 2016-08-17 | 潘海云 | Core-layer foamed composite tubular product and preparation process thereof |
| CN106188984A (en) * | 2016-08-28 | 2016-12-07 | 肖丽燕 | A kind of low temperature resistant antivibration fretting map PVC board its preparation method |
| CN106641585A (en) * | 2016-12-20 | 2017-05-10 | 浙江伟星新型建材股份有限公司 | PPR insulating composite tube for home decoration and preparation method of composite tube |
| CN108794922A (en) * | 2018-05-31 | 2018-11-13 | 安徽玉发塑业有限公司 | The drainpipe of high impact strength under a kind of low temperature environment |
| CN111059365A (en) * | 2019-11-12 | 2020-04-24 | 中兆建工集团有限公司 | Underground long-distance water delivery pipe for municipal engineering and production process thereof |
| CN111059365B (en) * | 2019-11-12 | 2022-03-22 | 中兆建工集团有限公司 | Underground long-distance water delivery pipe for municipal engineering and production process thereof |
| JP2021143731A (en) * | 2020-03-12 | 2021-09-24 | 積水化学工業株式会社 | Multilayer pipe |
| JP7479877B2 (en) | 2020-03-12 | 2024-05-09 | 積水化学工業株式会社 | Multilayer Pipe |
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Application publication date: 20151118 |