CN115322466A - Special antibacterial low-temperature-resistant high-density polyethylene pipe material and preparation method thereof - Google Patents
Special antibacterial low-temperature-resistant high-density polyethylene pipe material and preparation method thereof Download PDFInfo
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- CN115322466A CN115322466A CN202211013088.1A CN202211013088A CN115322466A CN 115322466 A CN115322466 A CN 115322466A CN 202211013088 A CN202211013088 A CN 202211013088A CN 115322466 A CN115322466 A CN 115322466A
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- density polyethylene
- temperature
- polyethylene pipe
- percent
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- 229920001903 high density polyethylene Polymers 0.000 title claims abstract description 38
- 239000004700 high-density polyethylene Substances 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 title claims abstract description 35
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000004698 Polyethylene Substances 0.000 claims abstract description 20
- 229920000573 polyethylene Polymers 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 17
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 16
- -1 polyethylene Polymers 0.000 claims abstract description 16
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 15
- 239000002216 antistatic agent Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 10
- 229920001661 Chitosan Polymers 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 235000019508 mustard seed Nutrition 0.000 claims description 4
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001580 bacterial effect Effects 0.000 abstract description 2
- 230000003115 biocidal effect Effects 0.000 abstract description 2
- 238000009395 breeding Methods 0.000 abstract description 2
- 230000001488 breeding effect Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 5
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000009364 mariculture Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a special material for an antibacterial low-temperature-resistant high-density polyethylene pipe and a preparation method thereof, wherein the special material comprises the following raw material components in percentage by weight: 88 to 95 percent of high-density polyethylene powder, 0.2 to 1.0 percent of antibacterial agent, 0.3 to 2.0 percent of antistatic agent, 3.0 to 10.0 percent of compatilizer and 0.1 to 0.5 percent of antioxidant; mixing the high-density polyethylene powder, the antibacterial agent, the antistatic agent, the compatilizer and the antioxidant in a high-speed mixer, and extruding and granulating the mixture by a double-screw extruder to obtain the special material for the antibacterial low-temperature-resistant high-density polyethylene pipe. The invention takes high-density polyethylene as a base material, can break through the application limitation of large-diameter polyethylene pipes by adding less additives, can realize the effects of antibiosis and low-temperature impact resistance at lower cost, and solves the problems of bacterial breeding of long-term deep underground and extremely low temperature difference at night in northern areas. The product can replace PE 100-grade pipes, not only saves cost, but also can improve the ring stiffness of the pipes and meet production requirements.
Description
Technical Field
The invention belongs to the technical field of polyolefin materials, and particularly relates to a special material for an antibacterial low-temperature-resistant high-density polyethylene pipe with a large caliber and a preparation method thereof.
Background
After Polyethylene (PE) tubing has become polyvinyl chloride (PVC), a second largest variety of plastic pipe is consumed worldwide. Compared with the traditional nodular cast iron, the large-caliber polyethylene pipe has the advantages of good sanitation, corrosion resistance, welding performance and the like, so the large-caliber polyethylene pipe is widely applied to the fields of sewage discharge, mariculture, seawater desalination engineering, industrial cooling water supply and the like.
Usually, manufacturers often use PE 100-grade pipes and PE recycled waste materials in a mixed manner. The large-caliber polyethylene pipe is deeply buried underground for a long time and can be corroded by various bacteria and changed by large temperature difference, and the application range of the product can be limited if the antibacterial performance and the low-temperature impact resistance are poor.
CN112679827A discloses an antibacterial polyethylene pipe and a preparation method thereof, but poor compatibility during modification processing is easily caused due to the use of more additives, and processing cost is increased due to the use of a mixed base material of ultrahigh molecular weight polyethylene and high density polyethylene.
Disclosure of Invention
Technical problem to be solved
The invention provides a special material for an antibacterial low-temperature-resistant high-density polyethylene pipe and a preparation method thereof, and aims to solve the technical problem of how to realize antibacterial and low-temperature impact resistance.
(II) technical scheme
In order to solve the technical problem, the invention provides a preparation method of a special antibacterial low-temperature-resistant high-density polyethylene pipe material, which comprises the following steps:
s1, weighing the following raw material components in percentage by weight: 88 to 95 percent of high-density polyethylene powder, 0.2 to 1.0 percent of antibacterial agent, 0.3 to 2.0 percent of antistatic agent, 3.0 to 10.0 percent of compatilizer and 0.1 to 0.5 percent of antioxidant;
s2, mixing the high-density polyethylene powder, the antibacterial agent, the antistatic agent, the compatilizer and the antioxidant in a high-speed mixer, and extruding and granulating the mixture by a double-screw extruder to obtain the special material for the antibacterial low-temperature-resistant high-density polyethylene pipe.
Further, the high density polyethylene powder is a high density polyethylene powder produced by loop slurry polymerization.
Further, the antibacterial agent is one or a mixture of a plurality of mustard seeds, chitosan and nano-silver.
Furthermore, the antibacterial agent is prepared by mixing mustard seeds, chitosan and nano-silver according to the proportion of 1.
Further, the antistatic agent is one or a mixture of octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate and phosphate ester antistatic agents.
Further, the compatilizer is a polymer of methyl methacrylate, styrene and organic silicon.
Further, the antioxidant is one or a mixture of more of antioxidants 1010, 168 and 1076.
Further, the antioxidant is prepared by mixing 1010 and 168 according to the proportion of 1:2.
Further, in step S2, the rotation speed of the main machine is 200-250rpm during extrusion granulation, the temperature of the double-screw extruder is 160-220 ℃, the temperature of the die head is 210 ℃, and the feeding temperature is 180 ℃.
In addition, the invention also provides a special material for the antibacterial low-temperature-resistant high-density polyethylene pipe, and the special material for the high-density polyethylene pipe is prepared by the method.
(III) advantageous effects
The invention provides a special material for an antibacterial low-temperature-resistant high-density polyethylene pipe and a preparation method thereof, wherein the special material comprises the following raw material components in percentage by weight: 88 to 95 percent of high-density polyethylene powder, 0.2 to 1.0 percent of antibacterial agent, 0.3 to 2.0 percent of antistatic agent, 3.0 to 10.0 percent of compatilizer and 0.1 to 0.5 percent of antioxidant; mixing the high-density polyethylene powder, the antibacterial agent, the antistatic agent, the compatilizer and the antioxidant in a high-speed mixer, and extruding and granulating the mixture by a double-screw extruder to obtain the special material for the antibacterial low-temperature-resistant high-density polyethylene pipe. The invention takes high-density polyethylene as a base material, can break through the application limitation of large-diameter polyethylene pipes by adding less additives, can realize the effects of antibiosis and low-temperature impact resistance at lower cost, and solves the problems of bacterial breeding of long-term deep underground and extremely low temperature difference at night in northern areas. The product can replace PE 100-grade pipes, not only saves cost, but also can improve the ring stiffness of the pipes and meet production requirements.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be given in conjunction with examples.
Example 1
The special material for the antibacterial low-temperature-resistant high-density polyethylene pipe comprises the following raw materials in percentage by weight: 90% of high-density polyethylene powder, 0.5% of antibacterial agent, 0.4% of antistatic agent, 9% of compatilizer and 0.1% of antioxidant. During preparation, the powder and various additives are added into a high-speed premixer, mixed for 5-10min and then added into a 35-type double-screw extruder for granulation processing of the extruder, wherein the rotating speed of a main machine is 200-250rpm, the temperature of the double-screw extruder is 160-220 ℃, the temperature of a die head is 210 ℃, and the feeding temperature is 180 ℃.
Example 2
The special material for the antibacterial low-temperature-resistant high-density polyethylene pipe comprises the following raw materials in percentage by weight: 88% of high-density polyethylene powder, 0.5% of antibacterial agent, 2.0% of antistatic agent, 9% of compatilizer and 0.5% of antioxidant. During preparation, the powder and various additives are added into a high-speed premixer, mixed for 5-10min, and then added into a 35-type double-screw extruder for extruder granulation processing, wherein the rotating speed of a main machine is 200-250rpm, the temperature of the double-screw extruder is 160-220 ℃, the die head temperature is 210 ℃, and the feeding temperature is 180 ℃.
Example 3
The special material for the antibacterial low-temperature-resistant high-density polyethylene pipe comprises the following raw materials in percentage by weight: 93 percent of high-density polyethylene powder, 0.3 percent of antibacterial agent, 0.5 percent of antistatic agent, 6 percent of compatilizer and 0.2 percent of antioxidant. During preparation, the powder and various additives are added into a high-speed premixer, mixed for 5-10min, and then added into a 35-type double-screw extruder for extruder granulation processing, wherein the rotating speed of a main machine is 200-250rpm, the temperature of the double-screw extruder is 160-220 ℃, the die head temperature is 210 ℃, and the feeding temperature is 180 ℃.
The special material for the antibacterial low-temperature-resistant high-density polyethylene pipe prepared in each example has the following results after performance tests, and the results are shown in the following table:
as can be seen from the above table, in the investigation of the key indexes in the three examples, when the addition amount of the high-density polyethylene powder is 90%, the obtained impact performance and antibacterial performance are both good, and the flexural modulus can be effectively guaranteed; when the high density polyethylene powder is added in an amount of 93%, although the performance is good, the cost is increased.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The preparation method of the special antibacterial low-temperature-resistant high-density polyethylene pipe material is characterized by comprising the following steps of:
s1, respectively weighing the following raw material components in percentage by weight: 88 to 95 percent of high-density polyethylene powder, 0.2 to 1.0 percent of antibacterial agent, 0.3 to 2.0 percent of antistatic agent, 3.0 to 10.0 percent of compatilizer and 0.1 to 0.5 percent of antioxidant;
s2, mixing the high-density polyethylene powder, the antibacterial agent, the antistatic agent, the compatilizer and the antioxidant in a high-speed mixer, and extruding and granulating the mixture by a double-screw extruder to obtain the special material for the antibacterial low-temperature-resistant high-density polyethylene pipe.
2. The method for preparing polyethylene pipe special material according to claim 1, wherein the high density polyethylene powder is produced by slurry polymerization of loop pipe.
3. The method for preparing the special material for the polyethylene pipe as claimed in claim 1, wherein the antibacterial agent is one or a mixture of mustard seeds, chitosan and nano silver.
4. The method for preparing the special material for the polyethylene pipe material according to claim 3, wherein the antibacterial agent is prepared by mixing mustard seeds, chitosan and nano silver in a ratio of 1.
5. The method for preparing the special material for the polyethylene pipe as claimed in claim 1, wherein the antistatic agent is one or a mixture of octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate and phosphate antistatic agent.
6. The method for preparing the special material for the polyethylene pipe material according to claim 1, wherein the compatilizer is a polymer of methyl methacrylate, styrene and silicone.
7. The method for preparing the special material for the polyethylene pipe according to claim 1, wherein the antioxidant is one or a mixture of 1010, 168 and 1076.
8. The method for preparing the special material for the polyethylene pipe as claimed in claim 7, wherein the antioxidant is prepared by mixing 1010 and 168 of antioxidant in a proportion of 1:2.
9. The method for preparing the special material for the polyethylene pipe as claimed in claim 1, wherein in the step S2, the rotation speed of the main machine is 200-250rpm when extruding and granulating, the temperature of the twin-screw extruder is 160-220 ℃, the temperature of the die head is 210 ℃, and the feeding temperature is 180 ℃.
10. The special material for the antibacterial low-temperature-resistant high-density polyethylene pipe is characterized by being prepared by the method of any one of the claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211013088.1A CN115322466A (en) | 2022-08-23 | 2022-08-23 | Special antibacterial low-temperature-resistant high-density polyethylene pipe material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211013088.1A CN115322466A (en) | 2022-08-23 | 2022-08-23 | Special antibacterial low-temperature-resistant high-density polyethylene pipe material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115322466A true CN115322466A (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211013088.1A Pending CN115322466A (en) | 2022-08-23 | 2022-08-23 | Special antibacterial low-temperature-resistant high-density polyethylene pipe material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115322466A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657561A (en) * | 2004-12-07 | 2005-08-24 | 青岛科技大学 | Special material for antistatic impact fire resistant polyethylene pipe |
| CN1884889A (en) * | 2005-06-24 | 2006-12-27 | 金德管业集团有限公司 | Structure wall pipe for coal mine |
| CN103881199A (en) * | 2012-12-21 | 2014-06-25 | 青岛欣展塑胶有限公司 | Antibacterial antistatic reinforcing master batch used for polyethylene and preparation method thereof |
| CN109401023A (en) * | 2018-11-12 | 2019-03-01 | 南通壹选工业设计有限公司 | HDPE antibiotic plastic and preparation method thereof |
| CN109438818A (en) * | 2018-09-07 | 2019-03-08 | 中国石油化工股份有限公司 | A kind of resistance to cracking hdpe pipe is resin dedicated and preparation method thereof |
-
2022
- 2022-08-23 CN CN202211013088.1A patent/CN115322466A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657561A (en) * | 2004-12-07 | 2005-08-24 | 青岛科技大学 | Special material for antistatic impact fire resistant polyethylene pipe |
| CN1884889A (en) * | 2005-06-24 | 2006-12-27 | 金德管业集团有限公司 | Structure wall pipe for coal mine |
| CN103881199A (en) * | 2012-12-21 | 2014-06-25 | 青岛欣展塑胶有限公司 | Antibacterial antistatic reinforcing master batch used for polyethylene and preparation method thereof |
| CN109438818A (en) * | 2018-09-07 | 2019-03-08 | 中国石油化工股份有限公司 | A kind of resistance to cracking hdpe pipe is resin dedicated and preparation method thereof |
| CN109401023A (en) * | 2018-11-12 | 2019-03-01 | 南通壹选工业设计有限公司 | HDPE antibiotic plastic and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张柏林: "《生物技术与食品加工》", 化学工业出版社, pages: 231 * |
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Application publication date: 20221111 |