CN115011048A - Preparation method and application of polyvinyl chloride antibacterial composite material - Google Patents
Preparation method and application of polyvinyl chloride antibacterial composite material Download PDFInfo
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- CN115011048A CN115011048A CN202210861666.0A CN202210861666A CN115011048A CN 115011048 A CN115011048 A CN 115011048A CN 202210861666 A CN202210861666 A CN 202210861666A CN 115011048 A CN115011048 A CN 115011048A
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- polyvinyl chloride
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- benzoic acid
- antibacterial composite
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- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 93
- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 93
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims description 17
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 19
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 18
- -1 alkyl pyridinium Chemical compound 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 26
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 239000012153 distilled water Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- KTSUSQZZJTZSFA-UHFFFAOYSA-N 2-pyridin-2-ylbenzoic acid Chemical compound OC(=O)C1=CC=CC=C1C1=CC=CC=N1 KTSUSQZZJTZSFA-UHFFFAOYSA-N 0.000 claims description 12
- MRBFBZXMHKMEKW-UHFFFAOYSA-N benzoic acid;pyridine Chemical compound C1=CC=NC=C1.OC(=O)C1=CC=CC=C1 MRBFBZXMHKMEKW-UHFFFAOYSA-N 0.000 claims description 11
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 8
- 239000000314 lubricant Substances 0.000 claims description 7
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 7
- 239000004014 plasticizer Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 239000003381 stabilizer Substances 0.000 claims description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 150000001348 alkyl chlorides Chemical class 0.000 claims description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- PHBVTMQLXNCAQO-UHFFFAOYSA-N 5-(aminomethyl)pyridin-2-amine Chemical compound NCC1=CC=C(N)N=C1 PHBVTMQLXNCAQO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005711 Benzoic acid Substances 0.000 claims description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 3
- 235000010233 benzoic acid Nutrition 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 2
- 125000000524 functional group Chemical group 0.000 abstract description 2
- 230000009878 intermolecular interaction Effects 0.000 abstract description 2
- 230000000051 modifying effect Effects 0.000 abstract description 2
- 239000002861 polymer material Substances 0.000 abstract description 2
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000001291 vacuum drying Methods 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 235000021355 Stearic acid Nutrition 0.000 description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 3
- 239000008117 stearic acid Substances 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- YAYNEUUHHLGGAH-UHFFFAOYSA-N 1-chlorododecane Chemical compound CCCCCCCCCCCCCl YAYNEUUHHLGGAH-UHFFFAOYSA-N 0.000 description 1
- CLWAXFZCVYJLLM-UHFFFAOYSA-N 1-chlorohexadecane Chemical compound CCCCCCCCCCCCCCCCCl CLWAXFZCVYJLLM-UHFFFAOYSA-N 0.000 description 1
- VUQPJRPDRDVQMN-UHFFFAOYSA-N 1-chlorooctadecane Chemical compound CCCCCCCCCCCCCCCCCCCl VUQPJRPDRDVQMN-UHFFFAOYSA-N 0.000 description 1
- RNHWYOLIEJIAMV-UHFFFAOYSA-N 1-chlorotetradecane Chemical compound CCCCCCCCCCCCCCCl RNHWYOLIEJIAMV-UHFFFAOYSA-N 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 239000008055 phosphate buffer solution Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-O pyridinium Chemical compound C1=CC=[NH+]C=C1 JUJWROOIHBZHMG-UHFFFAOYSA-O 0.000 description 1
- 238000005956 quaternization reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- RRHXZLALVWBDKH-UHFFFAOYSA-M trimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium;chloride Chemical compound [Cl-].CC(=C)C(=O)OCC[N+](C)(C)C RRHXZLALVWBDKH-UHFFFAOYSA-M 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
-
- 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
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- 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 relates to the technical field of high polymer materials and discloses a polyvinyl chloride antibacterial composite material.an alkyl pyridinium antibacterial group and a carboxyl functional group are introduced into a side chain of polyvinyl chloride, and are blended and modified with polyvinyl chloride resin and carboxyl nitrile rubber; meanwhile, carboxyl introduced by the polyvinyl chloride side chain has good intermolecular interaction with the carboxyl nitrile rubber, and chemical bonding occurs in melting and mixing, so that the carboxyl nitrile rubber and the polyvinyl chloride resin have good compatibility and interface bonding force, the nitrile rubber has good toughening and modifying effects on the strength of the polyvinyl chloride resin, and the mechanical strength and toughness of the material are improved.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a preparation method and application of a polyvinyl chloride antibacterial composite material.
Background
Polyvinyl chloride is one of general plastics with the largest yield in the world, the modification of polyvinyl chloride is a research hotspot in recent years, and the influence of acrylic acid on the performance of waste carboxyl nitrile rubber/polyvinyl chloride and blends reports that the acrylic acid is used for grafting modified polyvinyl chloride and waste carboxyl nitrile rubber to carry out blending modification, a small amount of acrylic acid is added to generate chemical bonds between the two surfaces, so that the adhesive force between the two phase interfaces is increased, and the mechanical property of the polyvinyl chloride blend is improved.
In order to expand the practical application of polyvinyl chloride, the antibacterial modification of polyvinyl chloride materials has important significance, and the antibacterial property of polyvinyl chloride plastics is improved by utilizing methacryloyloxyethyl trimethyl ammonium chloride antibacterial agent to graft copolymerize with polyvinyl chloride and then to blend and modify with polyvinyl chloride.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a polyvinyl chloride antibacterial composite material.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a polyvinyl chloride antibacterial composite material is prepared according to the following method:
(1) adding 4-isocyanate benzoic acid and 2-amino-5- (aminomethyl) pyridine into tetrahydrofuran, and reacting at room temperature to obtain 2-aminopyridine urea benzoic acid; and then adding maleic anhydride grafted polyvinyl chloride and 2-aminopyridine urea benzoic acid into the solvent, stirring the mixture in a nitrogen atmosphere for grafting reaction, drying the mixture in vacuum after the reaction, and washing the product by distilled water and ethanol to obtain the pyridylbenzoic acid grafted polyvinyl chloride.
(2) Adding pyridine benzoic acid grafted polyvinyl chloride into N, N-dimethylformamide, stirring for dissolving, and adding alkyl chloride (C) n H 2n+1 Cl and n are 10-18), heating to 80-110 ℃, reacting for 12-36h, cooling after reaction, drying in vacuum, washing the product with distilled water and ethanol to obtain pyridinium benzoic acid grafted polyvinyl chloride;
(3) adding polyvinyl chloride resin, pyridine salt benzoic acid grafted polyvinyl chloride and an auxiliary agent into a double-roller mixing roll for mixing, then adding carboxyl nitrile rubber, and performing hot pressing-cold pressing on the materials after uniform melting and mixing to obtain the polyvinyl chloride antibacterial composite material.
Preferably, the solvent in (1) comprises N, N-dimethylformamide, N-dimethylacetamide, N-methylpyrrolidone and xylene.
Preferably, the maleic anhydride grafted polyvinyl chloride in the step (1) is used in an amount of 100 parts by weight, and the 2-aminopyridine urea benzoic acid is used in an amount of 3-15 parts by weight.
Preferably, the grafting reaction in (1) is carried out at 20-35 ℃ for 3-5h, and then at 110-140 ℃ for 6-12 h.
Preferably, the pyridine benzoic acid grafted polyvinyl chloride in the step (2) is used in an amount of 100 parts by weight and the alkyl chloride is 5-30 parts by weight.
Preferably, the auxiliary agent in (3) comprises 2-4% of stabilizer, 1-2% of lubricant and 20-30% of plasticizer.
Preferably, the usage amount of the pyridinium benzoic acid grafted polyvinyl chloride in the step (3) is 6-30%, and the usage amount of the carboxylated nitrile rubber is 5-20%.
(III) advantageous technical effects
Compared with the prior art, the invention has the following beneficial technical effects:
according to the polyvinyl chloride antibacterial composite material, the acylidene cyclization reaction is carried out on 2-aminopyridine urea benzoic acid and maleic anhydride grafted polyvinyl chloride, and alkyl chloride pyridinium is used for quaternization to synthesize pyridinium benzoic acid grafted polyvinyl chloride, so that an alkyl pyridinium antibacterial group and a carboxyl functional group are introduced into a side chain of the polyvinyl chloride and are used as functional auxiliaries to be blended and modified with polyvinyl chloride resin and carboxyl nitrile rubber, the introduced pyridinium antibacterial group has the advantages of high grafting rate and low migration loss tendency, and the polyvinyl chloride material is endowed with long-acting and different antibacterial performance; meanwhile, carboxyl introduced by the polyvinyl chloride side chain has good intermolecular interaction with the carboxyl nitrile rubber, and chemical bonding occurs in melting and mixing, so that the carboxyl nitrile rubber and the polyvinyl chloride resin have good compatibility and interface bonding force, the nitrile rubber has good toughening and modifying effects on the strength of the polyvinyl chloride resin, and the mechanical strength and toughness of the material are improved.
Detailed Description
Example 1
(1) Adding 4-isocyanate benzoic acid and 2-amino-5- (aminomethyl) pyridine into tetrahydrofuran, and reacting at room temperature to obtain 2-aminopyridine urea benzoic acid; then adding 2g of maleic anhydride grafted polyvinyl chloride and 0.06g of 2-aminopyridine urea benzoic acid into N-methylpyrrolidone, stirring and grafting reaction at 20 ℃ for 4h in nitrogen atmosphere, then reacting at 120 ℃ for 12h, drying in vacuum after reaction, washing products with distilled water and ethanol, and obtaining the pyridylbenzoic acid grafted polyvinyl chloride.
(2) Adding 5g of pyridine benzoic acid grafted polyvinyl chloride into N, N-dimethylformamide, stirring to dissolve, adding 0.25g of 1-chlorododecane, heating to 110 ℃, reacting for 36 hours, cooling and vacuum drying after reaction, and washing a product by using distilled water and ethanol to obtain the pyridine benzoic acid grafted polyvinyl chloride.
(3) Adding polyvinyl chloride resin, 6% of pyridinium benzoic acid grafted polyvinyl chloride, 3% of calcium-zinc stabilizer, 2% of lubricant stearic acid and 25% of plasticizer DOP into a double-roller mixing roll for mixing, then adding 5% of carboxyl nitrile rubber, and performing hot pressing-cold pressing process on the materials after uniform melting and mixing to obtain the polyvinyl chloride antibacterial composite material.
Example 2
(1) Adding 2g of maleic anhydride grafted polyvinyl chloride and 0.12g of 2-aminopyridine urea benzoic acid into dimethylbenzene, stirring and grafting at 35 ℃ for 5h in a nitrogen atmosphere, then reacting at 130 ℃ for 12h, drying in vacuum after reaction, washing the product with distilled water and ethanol, and obtaining the pyridylbenzoic acid grafted polyvinyl chloride.
(2) Adding 5g of pyridine benzoic acid grafted polyvinyl chloride into N, N-dimethylformamide, stirring to dissolve, adding 0.6g of 1-chlorotetradecane, heating to 110 ℃, reacting for 24 hours, cooling and vacuum drying after reaction, and washing a product by using distilled water and ethanol to obtain the pyridine benzoic acid grafted polyvinyl chloride.
(3) Adding polyvinyl chloride resin, 15% of pyridinium benzoic acid grafted polyvinyl chloride, 2-4% of calcium zinc stabilizer, 1% of lubricant calcium stearate and 20% of plasticizer DOP into a double-roller mixing roll to mix, then adding 10% of carboxyl nitrile rubber, and performing hot pressing-cold pressing on the materials after uniformly melting and mixing to obtain the polyvinyl chloride antibacterial composite material.
Example 3
(1) Adding 2g of maleic anhydride grafted polyvinyl chloride and 0.22g of 2-aminopyridine urea benzoic acid into N, N-dimethylformamide, stirring and grafting reaction at 35 ℃ for 5h in a nitrogen atmosphere, then reacting at 140 ℃ for 10h, drying in vacuum after reaction, washing the product with distilled water and ethanol, and obtaining the pyridylbenzoic acid grafted polyvinyl chloride.
(2) Adding 5g of pyridine benzoic acid grafted polyvinyl chloride into N, N-dimethylformamide, stirring for dissolving, adding 1g of 1-chlorohexadecane, heating to 110 ℃, reacting for 12 hours, cooling and vacuum drying after reaction, and washing a product by using distilled water and ethanol to obtain the pyridine benzoic acid grafted polyvinyl chloride.
(3) Adding polyvinyl chloride resin, 20% of pyridinium benzoic acid grafted polyvinyl chloride, 4% of calcium-zinc stabilizer, 1% of lubricant stearic acid and 25% of plasticizer DOP into a double-roller mixing roll for mixing, then adding 15% of carboxylic nitrile rubber, and performing hot pressing-cold pressing on the materials after uniform melting and mixing to obtain the polyvinyl chloride antibacterial composite material.
Example 4
(1) Adding 2g of maleic anhydride grafted polyvinyl chloride and 0.3g of 2-aminopyridine urea benzoic acid into N, N-dimethylacetamide, stirring and grafting reaction at 25 ℃ for 4h in a nitrogen atmosphere, then reacting at 120 ℃ for 6h, drying in vacuum after reaction, washing the product with distilled water and ethanol, and obtaining the pyridylbenzoic acid grafted polyvinyl chloride.
(2) Adding 5g of pyridine benzoic acid grafted polyvinyl chloride into N, N-dimethylformamide, stirring to dissolve, adding 1.5g of 1-chlorooctadecane, heating to 110 ℃, reacting for 36 hours, cooling and vacuum drying after reaction, and washing a product by using distilled water and ethanol to obtain the pyridine benzoic acid grafted polyvinyl chloride.
(3) Adding polyvinyl chloride resin, 30% of pyridinium benzoic acid grafted polyvinyl chloride, 4% of stabilizer, 1% of lubricant and 20% of plasticizer into a double-roller mixing roll for mixing, then adding 20% of carboxyl nitrile rubber, and performing hot pressing-cold pressing on the materials after uniform melting and mixing to obtain the polyvinyl chloride antibacterial composite material.
Comparative example 1
(1) Adding 2g of maleic anhydride grafted polyvinyl chloride and 0.2g of 2-aminopyridine urea benzoic acid into N-methylpyrrolidone, stirring and grafting reaction at 35 ℃ for 5h in a nitrogen atmosphere, then reacting at 110 ℃ for 12h, drying in vacuum after reaction, washing the product with distilled water and ethanol, and obtaining the pyridylbenzoic acid grafted polyvinyl chloride.
(2) Adding polyvinyl chloride resin, 15% of pyridine benzoic acid grafted polyvinyl chloride, 3% of calcium-zinc stabilizer, 1% of lubricant stearic acid and 25% of plasticizer DOP into a double-roller mixing roll for mixing, then adding 10% of carboxyl nitrile rubber, and carrying out hot pressing-cold pressing on the materials after uniform melting and mixing to obtain the polyvinyl chloride composite material.
Taking Escherichia coli as a test strain, and preparing activated Escherichia coli liquid and phosphate buffer solution to have a concentration of 10 6 CFU/mL bacterial suspension, then 0.5mL bacterial suspension is transferred and dripped into a film containing agar culture medium and polyvinyl chloride antibacterial composite material, the film is cultured in a constant temperature incubator at 37 ℃ for 24h, and the diameter of the inhibition zone is measured after the culture.
The polyvinyl chloride antibacterial composite material is prepared into a strip sample of 12cm multiplied by 4cm multiplied by 0.5cm, the tensile property is tested by a tensile testing machine, and the tensile rate is 5 mm/min.
The polyvinyl chloride antibacterial composite material is prepared into a strip sample of 10cm multiplied by 5cm multiplied by 0.5cm, and the impact resistance is tested by a simple beam impact tester.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be regarded as equivalent replacements within the protection scope of the present invention.
Claims (7)
1. A preparation method of a polyvinyl chloride antibacterial composite material is characterized by comprising the following steps: the preparation method comprises the following steps:
(1) adding 4-isocyanate benzoic acid and 2-amino-5- (aminomethyl) pyridine into tetrahydrofuran, and reacting at room temperature to obtain 2-aminopyridine carbamido benzoic acid; then adding maleic anhydride grafted polyvinyl chloride and 2-aminopyridine urea benzoic acid into the solvent, stirring the mixture in a nitrogen atmosphere for grafting reaction, drying the mixture in vacuum after the reaction, and washing the product by distilled water and ethanol to obtain the pyridylbenzoic acid grafted polyvinyl chloride;
(2) adding pyridine benzoic acid grafted polyvinyl chloride into N, N-dimethylformamide, stirring for dissolving, and adding alkyl chloride (C) n H 2n+1 Cl and n are 10-18), heating to 80-110 ℃, reacting for 12-36h, cooling after reaction, drying in vacuum, washing the product with distilled water and ethanol to obtain pyridinium benzoic acid grafted polyvinyl chloride;
(3) adding polyvinyl chloride resin, pyridine salt benzoic acid grafted polyvinyl chloride and an auxiliary agent into a double-roller mixing roll for mixing, then adding carboxyl nitrile rubber, and performing hot pressing-cold pressing on the materials after uniform melting and mixing to obtain the polyvinyl chloride antibacterial composite material.
2. The preparation method of the polyvinyl chloride antibacterial composite material according to claim 1, wherein the preparation method comprises the following steps: the solvent in the step (1) comprises N, N-dimethylformamide, N-dimethylacetamide, N-methylpyrrolidone and xylene.
3. The preparation method of the polyvinyl chloride antibacterial composite material according to claim 1, wherein the preparation method comprises the following steps: the dosage of the maleic anhydride grafted polyvinyl chloride in the step (1) is 100 parts by weight, and the dosage of the 2-aminopyridine urea benzoic acid is 3-15 parts by weight.
4. The preparation method of the polyvinyl chloride antibacterial composite material according to claim 1, wherein the preparation method comprises the following steps: the grafting reaction in the step (1) is carried out at 20-35 ℃ for 3-5h and then at 110-140 ℃ for 6-12 h.
5. The preparation method of the polyvinyl chloride antibacterial composite material according to claim 1, wherein the preparation method comprises the following steps: the usage amount of the pyridylbenzoic acid grafted polyvinyl chloride in the step (2) is 100 parts by weight, and the alkyl chloride is 5-30 parts by weight.
6. The preparation method of the polyvinyl chloride antibacterial composite material according to claim 1, wherein the preparation method comprises the following steps: the auxiliary agent in the step (3) comprises 2-4% of stabilizer, 1-2% of lubricant and 20-30% of plasticizer.
7. The preparation method of the polyvinyl chloride antibacterial composite material according to claim 1, wherein the preparation method comprises the following steps: in the step (3), the dosage of the pyridinium benzoic acid grafted polyvinyl chloride is 6-30% and the dosage of the carboxylated nitrile rubber is 5-20%.
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| CN202210861666.0A CN115011048A (en) | 2022-07-20 | 2022-07-20 | Preparation method and application of polyvinyl chloride antibacterial composite material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115850884A (en) * | 2022-12-27 | 2023-03-28 | 义乌市希福防护用品有限公司 | Preparation method of isolation and protection mask material with antibacterial function |
| CN116813998A (en) * | 2023-07-05 | 2023-09-29 | 湖南盛业土工材料制造有限公司 | Conductive composite geomembrane |
| CN117089105A (en) * | 2023-07-25 | 2023-11-21 | 江苏隆科明泰新材料科技有限公司 | Manufacturing process and application of polyvinyl chloride coiled material floor based on closed cell foaming technology |
| CN117586702A (en) * | 2024-01-19 | 2024-02-23 | 海阳市凌晖包装有限公司 | Self-adhesive protective film for PP decorative plate and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103073907A (en) * | 2011-10-26 | 2013-05-01 | 中国石油化工股份有限公司 | Antibacterial thermoplastic plastic composition and preparation method thereof |
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| CN103073907A (en) * | 2011-10-26 | 2013-05-01 | 中国石油化工股份有限公司 | Antibacterial thermoplastic plastic composition and preparation method thereof |
| JP2020158759A (en) * | 2019-03-25 | 2020-10-01 | 積水化学工業株式会社 | Method for producing maleic anhydride modified polyvinyl chloride resin composition |
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| CN115850884A (en) * | 2022-12-27 | 2023-03-28 | 义乌市希福防护用品有限公司 | Preparation method of isolation and protection mask material with antibacterial function |
| CN115850884B (en) * | 2022-12-27 | 2024-03-19 | 义乌市希福防护用品有限公司 | Preparation method of isolation protective mask material with antibacterial function |
| CN116813998A (en) * | 2023-07-05 | 2023-09-29 | 湖南盛业土工材料制造有限公司 | Conductive composite geomembrane |
| CN116813998B (en) * | 2023-07-05 | 2024-03-22 | 湖南盛业土工材料制造有限公司 | Conductive composite geomembrane |
| CN117089105A (en) * | 2023-07-25 | 2023-11-21 | 江苏隆科明泰新材料科技有限公司 | Manufacturing process and application of polyvinyl chloride coiled material floor based on closed cell foaming technology |
| CN117586702A (en) * | 2024-01-19 | 2024-02-23 | 海阳市凌晖包装有限公司 | Self-adhesive protective film for PP decorative plate and preparation method thereof |
| CN117586702B (en) * | 2024-01-19 | 2024-03-22 | 海阳市凌晖包装有限公司 | Self-adhesive protective film for PP decorative plate and preparation method thereof |
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