CN116535790A - Modified CPVC pipe and preparation method thereof - Google Patents
Modified CPVC pipe and preparation method thereof Download PDFInfo
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- CN116535790A CN116535790A CN202310442050.4A CN202310442050A CN116535790A CN 116535790 A CN116535790 A CN 116535790A CN 202310442050 A CN202310442050 A CN 202310442050A CN 116535790 A CN116535790 A CN 116535790A
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- 239000004801 Chlorinated PVC Substances 0.000 title claims abstract description 69
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 title claims abstract description 69
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 239000000314 lubricant Substances 0.000 claims abstract description 23
- 239000003381 stabilizer Substances 0.000 claims abstract description 18
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 235000010215 titanium dioxide Nutrition 0.000 claims abstract description 13
- 239000011998 white catalyst Substances 0.000 claims abstract description 13
- 239000012745 toughening agent Substances 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 9
- 239000004698 Polyethylene Substances 0.000 claims abstract description 9
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 9
- 239000010439 graphite Substances 0.000 claims abstract description 9
- -1 polyethylene Polymers 0.000 claims abstract description 9
- 229920000573 polyethylene Polymers 0.000 claims abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004094 surface-active agent Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- LUZSPGQEISANPO-UHFFFAOYSA-N butyltin Chemical group CCCC[Sn] LUZSPGQEISANPO-UHFFFAOYSA-N 0.000 claims description 4
- YAHBZWSDRFSFOO-UHFFFAOYSA-L dimethyltin(2+);2-(2-ethylhexoxy)-2-oxoethanethiolate Chemical compound CCCCC(CC)COC(=O)CS[Sn](C)(C)SCC(=O)OCC(CC)CCCC YAHBZWSDRFSFOO-UHFFFAOYSA-L 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 11
- 239000004709 Chlorinated polyethylene Substances 0.000 description 5
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000009364 mariculture Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C08L27/22—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 modified by chemical after-treatment
- C08L27/24—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 modified by chemical after-treatment halogenated
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a modified CPVC pipe and a preparation method thereof, wherein the CPVC pipe comprises the following raw materials: CPVC, impact resistance reinforcing agent, lubricant, toughening agent, stabilizer and titanium white catalyst; the impact-resistant reinforcing agent is prepared from the following raw materials: modified carbon fiber, surfactant and nitrile rubber; the lubricant is prepared from the following raw materials: flake graphite and polyethylene wax. The beneficial effects of the invention are as follows: the modified CPVC pipe has fluidity, impact resistance and temperature resistance superior to those of CPVC pipes in the market. The pipe outer diameter of the pipe can reach 550mm, and when the pipe outer diameter is 315mm, the performance is still stable. The modified CPVC pipe has the advantages that the temperature resistance is between 100 ℃ and 110 ℃, the stability of the temperature resistance is good, and the temperature resistance of the pipe product is higher than that of the CPVC pipe and the pipe product existing in the market (the temperature resistance of the CPVC pipe in the market is generally between 90 ℃ and 100 ℃).
Description
Technical Field
The invention belongs to the technical field of pipes, and particularly relates to a modified CPVC pipe and a preparation method thereof.
Background
Chlorinated polyvinyl chloride (CPVC) is a product of further chlorinated modification of polyvinyl chloride, and is the material of industrial CPVC pipe material formed by extrusion. Besides many excellent performances of PVC, the CPVC has corrosion resistance, acid resistance, alkalinity, temperature resistance, impact resistance, ageing resistance and the like which are greatly improved compared with the PVC, so that the CPVC is a high-end new energy material with excellent performances. The product performance is superior to the CPVC pipe currently available in the market, and is widely used in the industries of environmental protection, oil fields, hot springs, pharmacy, food, fire protection, steel, nuclear power, bioengineering, electronics, power, chemical industry, farmland, mariculture, water supply, drainage, pollution discharge and the like.
The CPVC mixed modified materials in the current market have uneven performances, the rejection rate in the preparation process is high, the loss is high, the quality of the formed pipe product is unstable, and most CPVC modified materials still meet the market demands through import.
Disclosure of Invention
The invention aims to provide a modified CPVC pipe with excellent fluidity, impact resistance and excellent temperature resistance and a preparation method thereof.
In order to achieve the above object, the present invention adopts the following technical scheme:
the modified CPVC pipe comprises the following raw materials in parts by weight: 60-70 parts of CPVC, 5-9 parts of impact reinforcement agent, 3-8 parts of lubricant, 4-6 parts of flexibilizer, 6-10 parts of stabilizer and 6-10 parts of titanium white catalyst;
the impact-resistant reinforcing agent is prepared from the following raw materials: 10-20 parts of modified carbon fiber, 1-3 parts of surfactant and 6-8 parts of nitrile rubber;
the lubricant is prepared from the following raw materials: 5-10 parts of flake graphite and 6-9 parts of polyethylene wax.
The modified CPVC pipe is taken as a preferred embodiment and comprises the following raw materials in parts by weight: 63-68 parts of CPVC, 6-8 parts of impact reinforcement agent, 4-6 parts of lubricant, 4-5 parts of flexibilizer, 7-9 parts of stabilizer and 7-9 parts of titanium white catalyst;
the impact-resistant reinforcing agent is prepared from the following raw materials: 12-18 parts of modified carbon fiber, 1-2 parts of surfactant and 6-7 parts of nitrile rubber;
the lubricant is prepared from the following raw materials: 6-8 parts of flake graphite and 7-8 parts of polyethylene wax.
The surfactant used in the present application is stearic acid or sodium dodecyl sulfonate.
The flake graphite is a modified graphite ore, belongs to a hexagonal system, is in a layered structure, and has good performances of high temperature resistance, electric conduction, heat conduction, lubrication, plasticity, acid and alkali resistance and the like.
In a preferred embodiment of the modified CPVC pipe described above, the toughening agent is CPE or ACR.
CPE is short for chlorinated polyethylene, and is a saturated high polymer material. Has excellent weather resistance, ozone resistance, chemical resistance and aging resistance, and has good oil resistance, flame retardance and coloring performance.
ACR is the acronym of acrylic ester copolymer, and has the advantages of promoting the plasticization of PVC resin, increasing the melt strength of the PVC resin, improving the processing performance and the product quality, and having better stability and increasing the yield of the product.
The modified CPVC pipe described above, as a preferred embodiment, the stabilizer is a butyl tin stabilizer or a methyl tin mercaptide stabilizer.
In a second aspect of the present application, there is provided a method of preparing a modified CPVC pipe comprising the steps of:
(1) Uniformly mixing CPVC and an impact resistant reinforcing agent under the heating condition to obtain a material A;
(2) Adding a lubricant, a toughening agent, a stabilizer and a titanium white catalyst into the material A, and uniformly mixing to obtain a mixture;
(3) Extruding the mixture by a double-screw extruder, cooling, shaping and cutting to obtain the finished product.
In the above method for producing a modified CPVC pipe, as a preferred embodiment, in step (1), the temperature of the heating and mixing is 120 to 130 ℃.
In the above preparation method of modified CPVC pipe, as a preferred embodiment, in step (2), the mixing is as follows: mixing and stirring at 50-70deg.C for 30-40min; heating to 80-90 ℃, and preserving heat and stirring for 1-2h; heating to 110-115 deg.C, maintaining the temperature and stirring for 40-50min.
In the above method for preparing modified CPVC pipe, as a preferred embodiment, the twin screw extruder has a feeding temperature of 120-125 ℃, a plasticizing zone temperature of 170-175 ℃, a vacuum degree of 0.08-0.09MPa, a melt conveying zone temperature of 140-145 ℃, and a screw rotation speed of 30-35r/min.
The beneficial effects of the invention are as follows: the modified CPVC pipe has fluidity, impact resistance and temperature resistance superior to those of CPVC pipes in the market. The pipe outer diameter of the pipe can reach 550mm, and when the pipe outer diameter reaches 315mm, the performance is still stable.
The modified CPVC pipe has the advantages that the temperature resistance is between 100 ℃ and 110 ℃, the stability of the temperature resistance is good, and the temperature resistance of the pipe product is higher than that of the CPVC pipe and the pipe product existing in the market (the temperature resistance of the CPVC pipe in the market is generally between 90 ℃ and 100 ℃).
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
Example 1
The modified CPVC pipe provided in the embodiment 1 comprises the following raw materials in parts by weight: 60 parts of CPVC, 5 parts of impact reinforcement agent, 3 parts of lubricant, 4 parts of CPE toughening agent, 6 parts of butyl tin stabilizer and 6 parts of titanium white catalyst;
the impact-resistant reinforcing agent is prepared from the following raw materials: 10 parts of modified carbon fiber, 1 part of sodium dodecyl sulfate and 6 parts of nitrile rubber;
the lubricant is prepared from the following raw materials: 5 parts of flake graphite and 6 parts of polyethylene wax.
The preparation method of the modified CPVC pipe in the embodiment 1 comprises the following steps:
(1) Uniformly mixing CPVC and an impact resistant reinforcing agent under the condition that the heating temperature is 120 ℃ to obtain a material A;
(2) Adding a lubricant, a toughening agent, a stabilizer and a titanium white catalyst into the material A, and mixing and stirring for 40min at the temperature of 50 ℃; heating to 80 ℃, and preserving heat and stirring for 1.5h; heating to 110 ℃, preserving heat and stirring for 45 min to obtain a mixture;
(3) Extruding the mixture by a double-screw extruder, cooling, shaping and cutting to obtain the finished product; the twin-screw extruder had a feed temperature of 120℃and a plasticizing zone temperature of 170℃and a vacuum of 0.08MPa, and the melt conveying zone temperature of 140℃and a screw speed of 30 r/min.
Example 2
The modified CPVC pipe in the embodiment 2 comprises the following raw materials in parts by weight: 65 parts of CPVC, 7 parts of impact reinforcement agent, 5 parts of lubricant, 5 parts of ACR toughening agent, 8 parts of methyl tin stabilizer and 8 parts of titanium white catalyst;
the impact-resistant reinforcing agent is prepared from the following raw materials: 15 parts of modified carbon fiber, 2 parts of sodium dodecyl sulfate and 7 parts of nitrile rubber;
the lubricant is prepared from the following raw materials: 8 parts of flake graphite and 7 parts of polyethylene wax.
The preparation method of the modified CPVC pipe in the embodiment 2 comprises the following steps:
(1) Uniformly mixing CPVC and an impact resistant reinforcing agent under the condition that the heating temperature is 125 ℃ to obtain a material A;
(2) Adding a lubricant, a toughening agent, a stabilizer and a titanium white catalyst into the material A, and mixing and stirring for 35 min at the temperature of 60 ℃; heating to 85 ℃, and preserving heat and stirring for 1.5h; heating to 110 ℃, preserving heat and stirring for 45 min to obtain a mixture;
(3) Extruding the mixture by a double-screw extruder, cooling, shaping and cutting to obtain the finished product; the twin-screw extruder had a feed temperature of 120 ℃, a plasticizing zone temperature of 170 ℃, a vacuum of 0.085MPa, a melt conveying zone temperature of 140 ℃, and a screw speed of 35r/min.
Example 3
The modified CPVC pipe in the embodiment 3 comprises the following raw materials in parts by weight: 70 parts of CPVC, 9 parts of impact reinforcement agent, 8 parts of lubricant, 6 parts of CPE toughening agent, 10 parts of butyl tin stabilizer and 10 parts of titanium white catalyst;
the impact-resistant reinforcing agent is prepared from the following raw materials: 20 parts of modified carbon fiber, 3 parts of stearic acid and 8 parts of nitrile rubber;
the lubricant is prepared from the following raw materials: 10 parts of flake graphite and 9 parts of polyethylene wax.
The preparation method of the modified CPVC pipe in the embodiment 3 comprises the following steps:
(1) Uniformly mixing CPVC and an impact resistant reinforcing agent under the condition that the heating temperature is 130 ℃ to obtain a material A;
(2) Adding a lubricant, a toughening agent, a stabilizer and a titanium white catalyst into the material A, and mixing and stirring for 30 min at the temperature of 70 ℃; heating to 90 ℃, and preserving heat and stirring for 1h; heating to 115 ℃, and preserving heat and stirring for 40min to obtain a mixture;
(3) Extruding the mixture by a double-screw extruder, cooling, shaping and cutting to obtain the finished product; the twin-screw extruder had a feed temperature of 125℃and a plasticizing zone temperature of 175℃and a vacuum of 0.09MPa, and the melt conveying zone temperature of 145℃and a screw speed of 30 r/min.
Comparative example 1
The modified CPVC pipe of comparative example 1 differs from the pipe of example 1 in that the impact reinforcement used in the pipe of comparative example 1 is nitrile rubber.
Comparative example 2
The modified CPVC pipe of comparative example 2 differs from the pipe of example 2 in that the lubricant used in the pipe of comparative example 2 is a higher fatty acid.
Comparative example 3
Comparative example 3 a modified CPVC pipe differs from the pipe described in example 3 in that the lubricant used in the pipe described in comparative example 3 is a polyethylene wax.
Performance research of the modified CPVC pipe comprises the following steps:
1. flowability study of modified CPVC tubing described herein: the gravity flow test method is adopted: powder was added to the outflow rotating vessel type mixer in the funnel and the data were measured by flow rate, wall angle of repose, outflow limit aperture.
The results of the study are shown in table 1:
TABLE 1
As can be seen from table 1: the modified CPVC pipe described herein has better flowability relative to the CPVC pipe described in comparative examples 1, 2, 3.
The outer diameter of the pipe commonly used in the current market is 32mm-200mm, and the modified CPVC pipe can be 20mm-550mm, and has better plastic melting expansibility than the market products.
2. Impact resistance study of modified CPVC tubing described herein: the drop hammer impact test of mechanical properties is adopted, and according to the GB/T14152-2001 detection standard, the uniform medium-grade M test of the pipes of the pipe series S5-S10 at the temperature of 0 ℃ is regulated.
The results of the study are shown in table 2:
TABLE 2
As can be seen from table 2: the modified CPVC pipe has good impact resistance, and the bursting loss is obviously lower than that of the pipes described in comparative examples 1, 2 and 3.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (8)
1. The modified CPVC pipe is characterized by comprising the following raw materials in parts by weight: 60-70 parts of CPVC, 5-9 parts of impact reinforcement agent, 3-8 parts of lubricant, 4-6 parts of flexibilizer, 6-10 parts of stabilizer and 6-10 parts of titanium white catalyst;
the impact-resistant reinforcing agent is prepared from the following raw materials: 10-20 parts of modified carbon fiber, 1-3 parts of surfactant and 6-8 parts of nitrile rubber;
the lubricant is prepared from the following raw materials: 5-10 parts of flake graphite and 6-9 parts of polyethylene wax.
2. The modified CPVC pipe according to claim 1, comprising the following raw materials in parts by weight: 63-68 parts of CPVC, 6-8 parts of impact reinforcement agent, 4-6 parts of lubricant, 4-5 parts of flexibilizer, 7-9 parts of stabilizer and 7-9 parts of titanium white catalyst;
the impact-resistant reinforcing agent is prepared from the following raw materials: 12-18 parts of modified carbon fiber, 1-2 parts of surfactant and 6-7 parts of nitrile rubber;
the lubricant is prepared from the following raw materials: 6-8 parts of flake graphite and 7-8 parts of polyethylene wax.
3. A modified CPVC pipe as claimed in claim 1, wherein said toughening agent is CPE or ACR.
4. A modified CPVC pipe as claimed in claim 1, wherein said stabilizer is a butyl tin stabilizer or a methyl tin mercaptide stabilizer.
5. A method of making a modified CPVC pipe according to any one of claims 1 to 4 comprising the steps of:
(1) Uniformly mixing CPVC and an impact resistant reinforcing agent under the heating condition to obtain a material A;
(2) Adding a lubricant, a toughening agent, a stabilizer and a titanium white catalyst into the material A, and uniformly mixing to obtain a mixture;
(3) Extruding the mixture by a double-screw extruder, cooling, shaping and cutting to obtain the finished product.
6. The method for producing a modified CPVC pipe according to claim 5, wherein in step (1), the temperature of the heating and mixing is 120 to 130 ℃.
7. The method for producing a modified CPVC pipe according to claim 5, wherein in step (2), said uniformly mixing is: mixing and stirring at 50-70deg.C for 30-40min; heating to 80-90 ℃, and preserving heat and stirring for 1-2h; heating to 110-115 deg.C, maintaining the temperature, and stirring for 40-50min.
8. The method for producing a modified CPVC pipe according to claim 5, wherein said twin screw extruder has a feed temperature of 120-125 ℃, a plasticizing zone temperature of 170-175 ℃, a vacuum of 0.08-0.09MPa, a melt conveying zone temperature of 140-145 ℃, and a screw speed of 30-35r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310442050.4A CN116535790A (en) | 2023-04-23 | 2023-04-23 | Modified CPVC pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310442050.4A CN116535790A (en) | 2023-04-23 | 2023-04-23 | Modified CPVC pipe and preparation method thereof |
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| CN116535790A true CN116535790A (en) | 2023-08-04 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880429A (en) * | 2010-08-11 | 2010-11-10 | 聊城大学 | High-tenacity heat-resisting ageing-resisting chlorinated polyvinyl chloride alloy material and preparation method thereof |
| CN102532762A (en) * | 2011-11-15 | 2012-07-04 | 山东群升伟业塑胶科技有限公司 | Chlorinated polyvinyl chloride tube and preparation process thereof |
| CN109438873A (en) * | 2018-10-25 | 2019-03-08 | 福建亚通新材料科技股份有限公司 | A kind of impact-resistant modified polyvinyl chloride draining sewage pipe |
| CN115449169A (en) * | 2021-06-09 | 2022-12-09 | 中国石油化工股份有限公司 | Chlorinated polyvinyl chloride pipe for automatic water spraying fire extinguishing and preparation method thereof |
| CN115772305A (en) * | 2022-12-03 | 2023-03-10 | 金川集团股份有限公司 | Preparation method of CPVC cold and hot water pipe |
-
2023
- 2023-04-23 CN CN202310442050.4A patent/CN116535790A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880429A (en) * | 2010-08-11 | 2010-11-10 | 聊城大学 | High-tenacity heat-resisting ageing-resisting chlorinated polyvinyl chloride alloy material and preparation method thereof |
| CN102532762A (en) * | 2011-11-15 | 2012-07-04 | 山东群升伟业塑胶科技有限公司 | Chlorinated polyvinyl chloride tube and preparation process thereof |
| CN109438873A (en) * | 2018-10-25 | 2019-03-08 | 福建亚通新材料科技股份有限公司 | A kind of impact-resistant modified polyvinyl chloride draining sewage pipe |
| CN115449169A (en) * | 2021-06-09 | 2022-12-09 | 中国石油化工股份有限公司 | Chlorinated polyvinyl chloride pipe for automatic water spraying fire extinguishing and preparation method thereof |
| CN115772305A (en) * | 2022-12-03 | 2023-03-10 | 金川集团股份有限公司 | Preparation method of CPVC cold and hot water pipe |
Non-Patent Citations (1)
| Title |
|---|
| 孙建林: "《材料成形摩擦与润滑 第2版》", 31 May 2021, 国防工业出版社, pages: 66 - 67 * |
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