CN114456520A - Preparation method of PVC composite antibacterial material and product - Google Patents
Preparation method of PVC composite antibacterial material and product Download PDFInfo
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- CN114456520A CN114456520A CN202210272311.8A CN202210272311A CN114456520A CN 114456520 A CN114456520 A CN 114456520A CN 202210272311 A CN202210272311 A CN 202210272311A CN 114456520 A CN114456520 A CN 114456520A
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- pvc composite
- antibacterial material
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 43
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 50
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 49
- 239000000843 powder Substances 0.000 claims abstract description 14
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 12
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 239000004611 light stabiliser Substances 0.000 claims abstract description 11
- 239000003607 modifier Substances 0.000 claims abstract description 11
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000005469 granulation Methods 0.000 claims abstract description 6
- 230000003179 granulation Effects 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 241000411851 herbal medicine Species 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 12
- 229920002774 Maltodextrin Polymers 0.000 claims description 4
- 239000005913 Maltodextrin Substances 0.000 claims description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 4
- OFFHCUWJGDPERE-UHFFFAOYSA-N butanedioic acid;1-(2-hydroxyethyl)-2,2,6,6-tetramethylpiperidin-4-ol Chemical compound OC(=O)CCC(O)=O.CC1(C)CC(O)CC(C)(C)N1CCO OFFHCUWJGDPERE-UHFFFAOYSA-N 0.000 claims description 4
- 229940035034 maltodextrin Drugs 0.000 claims description 4
- LRQGFQDEQPZDQC-UHFFFAOYSA-N 1-Phenyl-1,3-eicosanedione Chemical compound CCCCCCCCCCCCCCCCCC(=O)CC(=O)C1=CC=CC=C1 LRQGFQDEQPZDQC-UHFFFAOYSA-N 0.000 claims description 3
- 241000205585 Aquilegia canadensis Species 0.000 claims description 3
- 244000247747 Coptis groenlandica Species 0.000 claims description 3
- 235000002991 Coptis groenlandica Nutrition 0.000 claims description 3
- 241000972672 Phellodendron Species 0.000 claims description 3
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 3
- 241000245665 Taraxacum Species 0.000 claims description 3
- 235000005187 Taraxacum officinale ssp. officinale Nutrition 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 241000555682 Forsythia x intermedia Species 0.000 claims description 2
- 241000207929 Scutellaria Species 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 239000004594 Masterbatch (MB) Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000338 in vitro Methods 0.000 abstract description 2
- 238000007709 nanocrystallization Methods 0.000 abstract description 2
- 239000002861 polymer material Substances 0.000 abstract description 2
- 241000588724 Escherichia coli Species 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 241001631457 Cannula Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 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
- C08L27/02—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
Abstract
The invention discloses a preparation method of a PVC composite antibacterial material and a product, and relates to the technical field of high polymer materials. The raw materials comprise polyvinyl chloride powder, an antibacterial agent, a surface modifier, a light stabilizer and an antioxidant. Wherein the antibacterial agent is Chinese herbal medicine. Firstly, mixing and nanocrystallizing the raw materials by grinding, and then carrying out melt extrusion granulation by a double-screw extruder to obtain the antibacterial master batch. According to the invention, the raw materials are fully mixed through powder addition, and meanwhile, nanocrystallization is realized through grinding, so that the technological effect of melt extrusion is improved. The obtained product has good antibacterial performance, and realizes the in vitro antibacterial use of the Chinese herbal medicine.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a preparation method and a product of a PVC composite antibacterial material.
Background
Polyvinyl chloride (PVC) resin is one of the largest yielding varieties of synthetic materials, and as the second most common plastic, its yield and consumption also account for the second place of the total yield and consumption of synthetic resins. PVC has good comprehensive properties such as flame retardance, insulativity, solvent resistance, abrasion resistance and the like, and is low in price and wide in raw material source, so that the PVC is widely applied to departments such as light industry, building materials, agriculture, daily life, packaging, electronic and electric appliances, public utilities and the like, and is particularly widely applied to manufacturing medical appliances due to good biocompatibility, high transparency and low price of the PVC. At present, PVC is mainly used for products such as various blood pipelines of transfusion (blood) devices, medical cannulas and the like, and is increasing at a speed of about 10% per year, so that the market potential of the products is huge. However, the current medical PVC composite still has some drawbacks: 1. the antibacterial performance of the PVC composite material is to be further improved; 2. the mechanical property of the PVC composite material needs to be further improved; 3. the preparation process of the PVC composite material with the antibacterial function is complex.
Therefore, it is necessary to provide a PVC composite antibacterial material with simple preparation process and high mechanical properties and antibacterial properties.
Disclosure of Invention
The invention aims to provide a preparation method of a PVC composite antibacterial material and a product, which are used for solving the problems in the prior art, simplifying the preparation process of the PVC composite antibacterial material and simultaneously ensuring that the PVC composite antibacterial material has high mechanical property and antibacterial property.
In order to achieve the purpose, the invention provides the following scheme:
a PVC composite antibacterial material comprises the following raw materials: PVC powder, an antibacterial agent, a surface modifier, a light stabilizer and an antioxidant;
the preparation method of the PVC composite antibacterial material comprises the following steps: uniformly mixing PVC powder, an antibacterial agent, a surface modifier, a light stabilizer and an antioxidant according to a mass ratio, and then carrying out melt extrusion granulation by a double-screw extruder to obtain antibacterial master batch (PVC composite antibacterial material).
Further, the uniform mixing process is a low-temperature grinding process, namely PVC powder, an antibacterial agent, a surface modifier, a light stabilizer and an antioxidant are put into a cell-grade ultrafine grinder according to the mass ratio and ground at a low temperature for 2-10 minutes.
Further, the antibacterial agent is a Chinese herbal medicine comprising one or more of dandelion, honeysuckle, coptis, phellodendron, scutellaria and forsythia.
Further, the surface modifier is one of soluble starch and soluble maltodextrin.
Further, the light stabilizer is poly (4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidineethanol) succinate or stearoylbenzoylmethane.
Further, the antioxidant is antioxidant 1010 or antioxidant 168.
Furthermore, the mass ratio of the antibacterial agent, the surface modifier, the light stabilizer and the antioxidant respectively accounts for 1-5 wt%, 1-20 wt%, 0.5-5 wt% and 0.1-5 wt% of the polyvinyl chloride powder.
Further, the melt extrusion process of the double-screw extruder specifically comprises the following steps: the temperature of the first zone is 180-fold, the temperature of the second zone is 180-fold, the temperature of the third zone is 190-fold, the temperature of the fourth zone is 190-fold, the temperature of the fifth zone is 190-fold, the temperature of the sixth zone is 200-fold, the temperature of the seventh zone is 200-fold, the temperature of the eighth zone is 210-fold, the temperature of the ninth zone is 210-fold, the temperature of the head is 200-fold, the rotation speed of the screw is 150-fold, 180 r/min and the pressure is 18-20 MPa.
The invention discloses the following technical effects:
1. according to the invention, the raw materials are fully mixed through powder addition, and meanwhile, nanocrystallization is realized through grinding, so that the technological effect of melt extrusion is improved.
2. The product obtained by the invention has good antibacterial performance, and realizes the in vitro antibacterial application of the Chinese herbal medicine.
Detailed Description
Reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Further, for numerical ranges in this disclosure, it is understood that each intervening value, between the upper and lower limit of that range, is also specifically disclosed. Every smaller range between any stated value or intervening value in a stated range and any other stated or intervening value in a stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference herein for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The description and examples are intended to be illustrative only.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
The "parts" in the present invention are all parts by mass unless otherwise specified.
Example 1
1000 g of PVC powder, 20 g of dandelion, 200 g of soluble starch, 10 g of poly (4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidineethanol) succinate and 5 g of antioxidant 1010 are put into a cell-grade ultrafine pulverizer and ground for 10 minutes at the temperature of minus 10 ℃. Then the mixture is melted and extruded by a double-screw extruder for granulation, and antibacterial PVC master batch (namely the PVC composite antibacterial material) is obtained. Wherein the extrusion process comprises the following steps: the temperature of the first zone is 180 ℃, the temperature of the second zone is 180 ℃, the temperature of the third zone is 190 ℃, the temperature of the fourth zone is 190 ℃, the temperature of the fifth zone is 190 ℃, the temperature of the sixth zone is 200 ℃, the temperature of the seventh zone is 200 ℃, the temperature of the eighth zone is 210 ℃, the temperature of the ninth zone is 210 ℃, the temperature of the machine head is 200 ℃, the rotation speed of the screw is 150 r/min, and the pressure is 18 MPa.
The antibacterial rate of the antibacterial PVC master batch to escherichia coli in 1 minute is 90.2%.
Example 2
1000 g of PVC powder, 50 g of honeysuckle, 200 g of soluble maltodextrin, 20 g of poly (4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidineethanol) succinate and 20 g of antioxidant 1010 are put into a cell-grade ultrafine grinder and ground for 10 minutes at the temperature of minus 18 ℃. Then the mixture is melted and extruded by a double-screw extruder for granulation, and antibacterial PVC master batch (namely the PVC composite antibacterial material) is obtained. Wherein the extrusion process comprises the following steps: the temperature of the first zone is 180 ℃, the temperature of the second zone is 180 ℃, the temperature of the third zone is 190 ℃, the temperature of the fourth zone is 190 ℃, the temperature of the fifth zone is 190 ℃, the temperature of the sixth zone is 200 ℃, the temperature of the seventh zone is 200 ℃, the temperature of the eighth zone is 210 ℃, the temperature of the ninth zone is 210 ℃, the temperature of the machine head is 200 ℃, the rotation speed of the screw is 150 r/min, and the pressure is 18 MPa.
The antibacterial rate of the antibacterial PVC master batch to escherichia coli in 1 minute is 99.5%.
Example 3
1000 g of PVC powder, 50 g of mixed powder of coptis and phellodendron, 100 g of soluble maltodextrin, 50 g of stearoylbenzoylmethane and 50 g of antioxidant 168 are put into a cell-grade ultramicro pulverizer and ground for 10 minutes at the temperature of minus 18 ℃. Then the mixture is melted and extruded by a double-screw extruder for granulation, and antibacterial PVC master batch (namely the PVC composite antibacterial material) is obtained. Wherein the extrusion process comprises the following steps: the temperature of the first zone is 185 ℃, the temperature of the second zone is 185 ℃, the temperature of the third zone is 195 ℃, the temperature of the fourth zone is 195 ℃, the temperature of the fifth zone is 195 ℃, the temperature of the sixth zone is 205 ℃, the temperature of the seventh zone is 205 ℃, the temperature of the eighth zone is 215 ℃, the temperature of the ninth zone is 215 ℃, the temperature of the machine head is 200 ℃, the rotation speed of the screw is 160 r/min, and the pressure is 20 MPa.
The antibacterial rate of the antibacterial PVC master batch to escherichia coli in 1 minute is 99.9%.
Claims (8)
1. The PVC composite antibacterial material is characterized by comprising the following raw materials: polyvinyl chloride powder, an antibacterial agent, a surface modifier, a light stabilizer and an antioxidant;
the preparation method of the PVC composite antibacterial material comprises the following steps: uniformly mixing the polyvinyl chloride powder, the antibacterial agent, the surface modifier, the light stabilizer and the antioxidant according to the mass ratio, and then carrying out melt extrusion granulation by a double-screw extruder to obtain the PVC composite antibacterial material.
2. The PVC composite antibacterial material according to claim 1, wherein the uniform mixing process is a low-temperature grinding process, and specifically comprises the following steps: the polyvinyl chloride powder, the antibacterial agent, the surface modifier, the light stabilizer and the antioxidant are put into a cell-grade ultrafine grinder according to the mass ratio and ground for 2-10 minutes at low temperature.
3. The PVC composite antibacterial material according to claim 1, wherein the antibacterial agent is a Chinese herbal medicine comprising one or more of dandelion, honeysuckle, coptis, phellodendron, scutellaria and forsythia.
4. The PVC composite antibacterial material according to claim 1, wherein the surface modifier is one of soluble starch and soluble maltodextrin.
5. The PVC composite antibacterial material of claim 1, wherein the light stabilizer is poly (4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidineethanol) succinate or stearoylbenzoylmethane.
6. The PVC composite antibacterial material according to claim 1, wherein the antioxidant is antioxidant 1010 or antioxidant 168.
7. The PVC composite antibacterial material according to claim 1, wherein the antibacterial agent, the surface modifier, the light stabilizer and the antioxidant respectively account for 1-5 wt%, 1-20 wt%, 0.5-5 wt% and 0.1-5 wt% of the polyvinyl chloride powder.
8. The PVC composite antibacterial material as claimed in claim 1, wherein the melt extrusion process of the twin-screw extruder is specifically as follows: the temperature of the first zone is 180-fold, the temperature of the second zone is 180-fold, the temperature of the third zone is 190-fold, the temperature of the fourth zone is 190-fold, the temperature of the fifth zone is 190-fold, the temperature of the sixth zone is 200-fold, the temperature of the seventh zone is 200-fold, the temperature of the eighth zone is 210-fold, the temperature of the ninth zone is 210-fold, the temperature of the head is 200-fold, the rotation speed of the screw is 150-fold, 180 r/min and the pressure is 18-20 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210272311.8A CN114456520A (en) | 2022-03-18 | 2022-03-18 | Preparation method of PVC composite antibacterial material and product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210272311.8A CN114456520A (en) | 2022-03-18 | 2022-03-18 | Preparation method of PVC composite antibacterial material and product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114456520A true CN114456520A (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210272311.8A Pending CN114456520A (en) | 2022-03-18 | 2022-03-18 | Preparation method of PVC composite antibacterial material and product |
Country Status (1)
| Country | Link |
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| CN (1) | CN114456520A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601953A (en) * | 2013-11-08 | 2014-02-26 | 苏州新颖新材料科技股份有限公司 | Plant-source bacteriostatic composite thin film and preparation method thereof |
| CN105400100A (en) * | 2015-11-25 | 2016-03-16 | 全椒祥瑞塑胶有限公司 | Antibacterial polyvinyl chloride |
| CN105670078A (en) * | 2016-01-29 | 2016-06-15 | 太仓卡斯特姆新材料有限公司 | Antistatic and antibacterial plastics and preparation method |
-
2022
- 2022-03-18 CN CN202210272311.8A patent/CN114456520A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601953A (en) * | 2013-11-08 | 2014-02-26 | 苏州新颖新材料科技股份有限公司 | Plant-source bacteriostatic composite thin film and preparation method thereof |
| CN105400100A (en) * | 2015-11-25 | 2016-03-16 | 全椒祥瑞塑胶有限公司 | Antibacterial polyvinyl chloride |
| CN105670078A (en) * | 2016-01-29 | 2016-06-15 | 太仓卡斯特姆新材料有限公司 | Antistatic and antibacterial plastics and preparation method |
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Application publication date: 20220510 |
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