CN114621537A - Antibacterial and antiviral PVC (polyvinyl chloride) film and preparation method thereof - Google Patents
Antibacterial and antiviral PVC (polyvinyl chloride) film and preparation method thereof Download PDFInfo
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- 230000000840 anti-viral effect Effects 0.000 title claims abstract description 67
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000004800 polyvinyl chloride Substances 0.000 title description 41
- 229920000915 polyvinyl chloride Polymers 0.000 title description 41
- 239000000843 powder Substances 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002131 composite material Substances 0.000 claims abstract description 23
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004014 plasticizer Substances 0.000 claims abstract description 19
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003063 flame retardant Substances 0.000 claims abstract description 18
- 239000003381 stabilizer Substances 0.000 claims abstract description 17
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 16
- 239000000314 lubricant Substances 0.000 claims abstract description 16
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 claims abstract description 16
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 claims abstract description 16
- 235000012141 vanillin Nutrition 0.000 claims abstract description 16
- 239000007822 coupling agent Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 16
- 229920001971 elastomer Polymers 0.000 claims description 11
- 239000000806 elastomer Substances 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 10
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 8
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 1
- 238000009740 moulding (composite fabrication) Methods 0.000 claims 1
- 241000700605 Viruses Species 0.000 abstract description 20
- 241000894006 Bacteria Species 0.000 abstract description 11
- 241000588724 Escherichia coli Species 0.000 abstract description 6
- 241000191967 Staphylococcus aureus Species 0.000 abstract description 6
- 150000002500 ions Chemical class 0.000 abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 abstract description 5
- 102000039446 nucleic acids Human genes 0.000 abstract description 5
- 108020004707 nucleic acids Proteins 0.000 abstract description 5
- 150000007523 nucleic acids Chemical class 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 241000711573 Coronaviridae Species 0.000 abstract description 2
- 208000025721 COVID-19 Diseases 0.000 abstract 1
- 108010067390 Viral Proteins Proteins 0.000 abstract 1
- 244000052616 bacterial pathogen Species 0.000 abstract 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 7
- 241000712431 Influenza A virus Species 0.000 description 5
- MTYUOIVEVPTXFX-UHFFFAOYSA-N bis(2-propylheptyl) benzene-1,2-dicarboxylate Chemical compound CCCCCC(CCC)COC(=O)C1=CC=CC=C1C(=O)OCC(CCC)CCCCC MTYUOIVEVPTXFX-UHFFFAOYSA-N 0.000 description 5
- 238000011056 performance test Methods 0.000 description 5
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
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- 102000004169 proteins and genes Human genes 0.000 description 4
- 108090000623 proteins and genes Proteins 0.000 description 4
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- -1 alkyl phosphate Chemical compound 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 3
- 239000004611 light stabiliser Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical group [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 230000002155 anti-virotic effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 2
- OEIWPNWSDYFMIL-UHFFFAOYSA-N dioctyl benzene-1,4-dicarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C=C1 OEIWPNWSDYFMIL-UHFFFAOYSA-N 0.000 description 2
- 230000005685 electric field effect Effects 0.000 description 2
- 239000013538 functional additive Substances 0.000 description 2
- 239000012760 heat stabilizer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- JLHMJWHSBYZWJJ-UHFFFAOYSA-N 1,2-thiazole 1-oxide Chemical class O=S1C=CC=N1 JLHMJWHSBYZWJJ-UHFFFAOYSA-N 0.000 description 1
- FXVNBZGTAWLLNE-UHFFFAOYSA-N 1,3-thiazole;zinc Chemical compound [Zn].C1=CSC=N1 FXVNBZGTAWLLNE-UHFFFAOYSA-N 0.000 description 1
- ZILVNHNSYBNLSZ-UHFFFAOYSA-N 2-(diaminomethylideneamino)guanidine Chemical compound NC(N)=NNC(N)=N ZILVNHNSYBNLSZ-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000588747 Klebsiella pneumoniae Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- PQYJRMFWJJONBO-UHFFFAOYSA-N Tris(2,3-dibromopropyl) phosphate Chemical compound BrCC(Br)COP(=O)(OCC(Br)CBr)OCC(Br)CBr PQYJRMFWJJONBO-UHFFFAOYSA-N 0.000 description 1
- GTVWRXDRKAHEAD-UHFFFAOYSA-N Tris(2-ethylhexyl) phosphate Chemical compound CCCCC(CC)COP(=O)(OCC(CC)CCCC)OCC(CC)CCCC GTVWRXDRKAHEAD-UHFFFAOYSA-N 0.000 description 1
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 description 1
- NFVZIERLAZUYBQ-UHFFFAOYSA-N [K].[Zn] Chemical compound [K].[Zn] NFVZIERLAZUYBQ-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- SHLNMHIRQGRGOL-UHFFFAOYSA-N barium zinc Chemical compound [Zn].[Ba] SHLNMHIRQGRGOL-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- JZZBTMVTLBHJHL-UHFFFAOYSA-N tris(2,3-dichloropropyl) phosphate Chemical compound ClCC(Cl)COP(=O)(OCC(Cl)CCl)OCC(Cl)CCl JZZBTMVTLBHJHL-UHFFFAOYSA-N 0.000 description 1
- HQUQLFOMPYWACS-UHFFFAOYSA-N tris(2-chloroethyl) phosphate Chemical compound ClCCOP(=O)(OCCCl)OCCCl HQUQLFOMPYWACS-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use 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; Derivatives of such polymers
- C08J2327/02—Characterised by the use 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; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use 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; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- 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
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to the technical field of PVC films, and particularly relates to an antibacterial and antiviral PVC film and a preparation method thereof, wherein the PVC film comprises the following components in parts by weight: PVC resin powder, a plasticizer, a coupling agent, a stabilizer, diatomite powder, a vanillin antibacterial agent, a graphene-based composite antiviral material, a lubricant and a flame retardant. The antibacterial and antiviral components of the invention are easy to capture bacteria and viruses, trigger ROS, generate high active oxygen, other ions and free radicals to adhere to the surfaces of the viruses, destroy the structures and functions of viral proteins and nucleic acids, and can rapidly inactivate the captured bacteria and viruses by a contact catalytic antibacterial and antiviral mechanism, and the antiviral activity rate of the antibacterial and antiviral components to new coronavirus COVID-19, escherichia coli, staphylococcus aureus and other germs is more than 99%.
Description
Technical Field
The invention belongs to the technical field of PVC films, and particularly relates to an antibacterial and antiviral PVC film and a preparation method thereof.
Background
In recent two years, with outbreaks of various viruses such as novel influenza and novel coronaviruses and bacteria such as klebsiella pneumoniae, sterilization and disinfection of spaces have become daily. Recognizing the complexity and inconvenience of sterilization and disinfection, the waste of resources and the potential hazard, the antibacterial and antiviral property of the object surface becomes a great trend. From such a viewpoint, there is an increasing demand for functional film materials having antibacterial and antiviral properties.
Such a functional membrane material having antibacterial and antiviral properties has been reported. CN105348756B discloses an antibacterial polyester film, a preparation method and an application thereof, and an antibacterial film product is prepared by dispersing nano silver in polyester chips. However, the production of a desired antimicrobial film product requires a complicated process, and the production is complicated, which is inconvenient. In addition, there is a problem that the dispersibility of the nano silver material in the polyester chip is low and the antibacterial property is not uniform.
CN111732906A discloses an antiviral and antibacterial functional film and a preparation method thereof, wherein the functional film comprises a base material, an antiviral and antibacterial coating layer fixed on the upper surface of the base material, and a low-viscosity organic adhesive layer fixed on the lower surface of the base material layer; the antiviral and antibacterial coating is obtained by coating a coating liquid containing a nano inorganic/organic composite antiviral and antibacterial treating agent and transparent resin on a base material. The antiviral and antibacterial coating is formed on the base material and is easy to fall off by external force.
Disclosure of Invention
The invention provides an antibacterial and antiviral PVC membrane, wherein the antibacterial component is doped into the membrane raw material component, so that bacteria and viruses are very easily captured, ROS is triggered, high active oxygen, other ions and free radicals are generated and adhered to the surface of the viruses, the structures and functions of virus proteins and nucleic acids are damaged, and the captured bacteria and viruses can be quickly inactivated by a contact catalytic antibacterial and antiviral mechanism.
An antibacterial and antiviral PVC film comprises the following components in parts by weight: PVC resin powder, a plasticizer, a coupling agent, a stabilizer, diatomite powder, a vanillin antibacterial agent, a graphene-based composite antiviral material, a lubricant and a flame retardant.
The graphene has a special energy band structure and the semiconductor characteristic of a composite material, an inner cavity has a bipolar electric field effect, bacteria and viruses are easily captured, ROS is triggered, high active oxygen, other ions and free radicals are generated and adhered to the surface of the viruses, the structures and functions of virus proteins and nucleic acids are damaged, and the captured bacteria and viruses can be quickly inactivated by a contact catalytic antibacterial antiviral mechanism. The diatomite nano hollow molecular sieve structure is coupled with the graphene composite antiviral material, so that the antibacterial and antiviral effects are better, uniform and lasting. The antibacterial rate is more than 99 percent, and the antiviral rate is more than 96 percent.
The antiviral material may be one or more of imidazole, thiazole, isothiazolone derivative, quaternary ammonium salt, biguanidine, phenol, silver and copper.
Preferably, the particle size of the diatomite powder is between 1000 meshes and 1800 meshes.
Specifically, the composition comprises the following components in parts by weight: 80-100 parts of PVC resin powder, 20-30 parts of plasticizer, 3-5 parts of coupling agent, 3-5 parts of stabilizer, 20-30 parts of diatomite powder, 2-4 parts of vanillin antibacterial agent, 3-5 parts of graphene-based composite antiviral material, 2-3 parts of lubricant and 3-5 parts of flame retardant.
More specifically, 85 parts of PVC resin powder, 30 parts of plasticizer, 3 parts of coupling agent, 3 parts of stabilizer, 25 parts of diatomite powder, 3 parts of vanillin antibacterial agent, 5 parts of graphene-based composite antiviral material, 3 parts of lubricant and 3 parts of flame retardant are preferred.
The plasticizer is conventional plasticizer, and can be selected from diisodecyl phthalate (DIDP), dioctyl terephthalate (DOTP), trioctyl trimellitate (TOTM), diisononyl phthalate (DINP), di (2-propylheptyl) phthalate (DPHP), polyester plasticizer, etc.
The coupling agent is a silane coupling agent.
The stabilizer comprises a light stabilizer and a heat stabilizer, wherein the light stabilizer adopts hindered amine light stabilizers, and the heat stabilizer preferably adopts composite stabilizers, such as calcium zinc composite stabilizers, barium zinc composite stabilizers, potassium zinc composite stabilizers and the like.
The flame retardant is a conventional flame retardant, and can be alkyl phosphate, tributyl phosphate, tri (2-ethylhexyl) phosphate, tri (2-chloroethyl) phosphate, tri (2, 3-dichloropropyl) phosphate, tri (2, 3-dibromopropyl) phosphate, aryl phosphate and the like.
The addition of the various antibacterial and antiviral functional additives, particularly the addition of the graphene composite antiviral material, to the PVC film which takes PVC resin as a main component leads to the deterioration of film-forming performance, which is mainly reflected in the presence of concave-convex points, cracks and the like, and the defective rate of PVC is increased in the processing process.
Preferably, the PVC resin is doped with the elastomer, so that the defects caused by adding functional additives such as the graphene composite antiviral material and the like can be overcome, and the adding amount of the elastomer is not more than 1% of the total amount of the PVC resin.
More specifically, the elastomer is a thermoplastic styrenic elastomer.
The invention also provides a preparation method of the antibacterial and antiviral PVC membrane, which comprises the following steps:
step 1: sequentially adding diatomite powder, a coupling agent, a graphene composite antiviral material and a vanillin antibacterial agent into a stirrer according to the components and parts by weight, and uniformly stirring to obtain a first mixture;
and 2, step: adding PVC resin powder, a plasticizer, a stabilizer, a lubricant and a flame retardant into a stirrer, and uniformly mixing the PVC resin powder with the PVC resin powder to obtain a mixture II;
and step 3: introducing the first mixture and the second mixture into a plasticator for plastication;
and 4, step 4: feeding the plasticated mixture into an extruder, extruding, cooling and molding.
Through the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the invention integrates the antibacterial and antiviral components into the PVC film, thereby increasing the effective durability of the antibacterial and antiviral effects.
2. The antibacterial and antiviral component of the invention is easy to capture bacteria and virus, initiates ROS, generates high active oxygen, other ions and free radicals to adhere to the surface of the virus, destroys the structure and function of virus protein and nucleic acid, and can rapidly inactivate the captured bacteria and virus by a contact catalytic antibacterial and antiviral mechanism.
3. According to the invention, the diatomite nano hollow molecular sieve structure is coupled with the graphene composite antiviral material, so that the antibacterial and antiviral effects are better, uniform and lasting.
4. The antibacterial rate of the PVC film is more than 98 percent, and the antiviral rate is more than 96 percent.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, belong to the protection scope of the present invention.
Example 1
An antibacterial and antiviral PVC film comprises the following components in parts by weight: 80 parts of PVC resin powder, 30 parts of plasticizer TOTM, 3 parts of silane coupling agent, 4 parts of stabilizer, 20 parts of diatomite powder, 4 parts of vanillin antibacterial agent, 3 parts of graphene-based composite Ag ion antiviral material, 2 parts of lubricant and 3 parts of flame retardant. The graphene has a special energy band structure and semiconductor characteristics of a composite material, an inner cavity has a bipolar electric field effect, bacteria and viruses are easily captured, ROS is triggered, high active oxygen, other ions and free radicals are generated and adhered to the surfaces of the viruses, the structures and functions of virus proteins and nucleic acid are damaged, and the captured bacteria and viruses can be quickly inactivated by a contact catalytic antibacterial antiviral mechanism. The diatomite nano hollow molecular sieve structure is coupled with the graphene composite antiviral material, so that the antibacterial and antiviral effects are better, uniform and lasting. The performance test of the PVC membrane of the embodiment is carried out, the antibacterial test standard is ISO 22196-2011, the antibacterial rate to escherichia coli is 99.6%, the antibacterial rate to staphylococcus aureus is 99.2%, and the antiviral rate to influenza A virus (H3N 2) reaches 97%.
Example 2
An antibacterial and antiviral PVC film comprises the following components in parts by weight: 85 parts of PVC resin powder, 30 parts of plasticizer DIDP, 3 parts of silane coupling agent, 3 parts of stabilizer, 25 parts of 1500-mesh diatomite powder, 3 parts of vanillin antibacterial agent, 5 parts of graphene-based composite zinc thiazole, 3 parts of lubricant and 3 parts of flame retardant. The performance test of the PVC membrane of the embodiment is carried out, the antibacterial test standard is ISO 22196-2011, the antibacterial rate to escherichia coli is 99.9%, the antibacterial rate to staphylococcus aureus is 99%, and the antiviral rate to influenza A virus (H3N 2) reaches 97.4%.
Example 3
An antibacterial and antiviral PVC film comprises the following components in parts by weight: 100 parts of PVC resin powder, 26 parts of plasticizer DIDP, 4 parts of silane coupling agent, 4 parts of stabilizer, 25 parts of 1500-mesh diatomite powder, 4 parts of vanillin antibacterial agent, 4 parts of graphene-based composite organosilicon quaternary ammonium salt, 2 parts of lubricant and 5 parts of flame retardant. The performance test of the PVC membrane of the embodiment is carried out, the antibacterial test standard is ISO 22196-2011, the antibacterial rate to escherichia coli is 99.6%, the antibacterial rate to staphylococcus aureus is 99.2%, and the antiviral rate to influenza A virus (H3N 2) reaches 96.9%.
Example 4
An antibacterial and antiviral PVC film comprises the following components in parts by weight: 85 parts of PVC resin powder, 25 parts of plasticizer DPHP, 5 parts of silane coupling agent, 2 parts of stabilizer, 30 parts of 1500-mesh diatomite powder, 3 parts of vanillin antibacterial agent, 5 parts of graphene-based composite organic silicon quaternary ammonium salt, 2 parts of lubricant and 5 parts of flame retardant.
The preparation method comprises the following steps:
step 1: according to the adding parts, sequentially adding the diatomite powder, the coupling agent, the graphene composite antiviral material and the vanillin antibacterial agent into a stirrer to be uniformly stirred to obtain a first mixture;
step 2: adding PVC resin powder, a plasticizer, a stabilizer, a lubricant and a flame retardant into a stirrer, and uniformly mixing with the PVC resin powder to obtain a mixture II;
and step 3: introducing the first mixture and the second mixture into a plasticator for plastication;
and 4, step 4: feeding the plasticated mixture into an extruder, extruding, cooling and molding.
The performance test of the PVC membrane of the embodiment is carried out, the antibacterial test standard is ISO 22196-2011, the antibacterial rate to escherichia coli is 99.3%, the antibacterial rate to staphylococcus aureus is 99.7%, and the antiviral rate to influenza A virus (H3N 2) reaches 98%.
Example 5
An antibacterial and antiviral PVC film comprises the following components in parts by weight: 85 parts of PVC resin powder, 8 parts of thermoplastic styrene elastomer, 25 parts of plasticizer DPHP, 5 parts of silane coupling agent, 2 parts of stabilizer, 30 parts of 1500-mesh diatomite powder, 3 parts of vanillin antibacterial agent, 5 parts of graphene-based composite organosilicon quaternary ammonium salt, 2 parts of lubricant and 5 parts of flame retardant.
By adopting the same preparation method, the secondary yield is about 5 percent before the thermoplastic styrene elastomer is added. By improvement, the defective rate is as low as 0.2% after 8 parts of thermoplastic styrene elastomer is added.
Comparative example 1:
an antibacterial and antiviral PVC film comprises the following components in parts by weight: 85 parts of PVC resin powder, 25 parts of plasticizer DPHP, 5 parts of silane coupling agent, 2 parts of stabilizer, 30 parts of 1500-mesh diatomite powder, 3 parts of vanillin antibacterial agent, 5 parts of organosilicon quaternary ammonium salt, 2 parts of lubricant and 5 parts of flame retardant.
The anti-virus material in the comparative example is not compounded by graphene, the performance test of the PVC membrane in the comparative example is carried out, the antibacterial test standard is ISO 22196-2011, the antibacterial rate to escherichia coli is 96.5%, the antibacterial rate to staphylococcus aureus is 96%, and the anti-virus rate to influenza A virus (H3N 2) is 88.7%.
Claims (9)
1. The antibacterial and antiviral PVC film is characterized by comprising the following components: PVC resin powder, a plasticizer, a coupling agent, a stabilizer, a vanillin antibacterial agent, a graphene-based composite antiviral material, a lubricant and a flame retardant.
2. The PVC film of claim 1, wherein diatomite powder is added.
3. The antibacterial and antiviral PVC membrane as claimed in claim 2, wherein the particle size of the diatomite powder is 1000-1800 meshes.
4. The antibacterial and antiviral PVC film as claimed in claim 2, which is characterized by comprising the following components in parts by weight: 80-100 parts of PVC resin powder, 20-30 parts of plasticizer, 3-5 parts of coupling agent, 3-5 parts of stabilizer, 20-30 parts of diatomite powder, 2-4 parts of vanillin antibacterial agent, 3-5 parts of graphene-based composite antiviral material, 2-3 parts of lubricant and 3-5 parts of flame retardant.
5. The antibacterial and antiviral PVC film according to claim 3, characterized by comprising the following components in parts by weight: 85 parts of PVC resin powder, 30 parts of plasticizer, 3 parts of coupling agent, 3 parts of stabilizer, 25 parts of diatomite powder, 3 parts of vanillin antibacterial agent, 5 parts of graphene-based composite antiviral material, 3 parts of lubricant and 3 parts of flame retardant.
6. The antibacterial and antiviral PVC film according to claim 1, further comprising an elastomer.
7. The antibacterial and antiviral PVC film according to claim 6, wherein the elastomer is added in an amount of not more than 1% of the total amount of PVC resin.
8. The antibacterial and antiviral PVC film according to claim 6, wherein the elastomer is a thermoplastic styrene elastomer.
9. The method for preparing an antibacterial and antiviral PVC film according to claim 2, comprising the steps of:
step 1: sequentially adding diatomite powder, a coupling agent, a graphene composite antiviral material and a vanillin antibacterial agent into a stirrer according to the components and parts by weight, and uniformly stirring to obtain a first mixture;
and 2, step: adding PVC resin powder, a plasticizer, a stabilizer, a lubricant and a flame retardant into a stirrer, and uniformly mixing the PVC resin powder with the PVC resin powder to obtain a mixture II;
and step 3: introducing the first mixture and the second mixture into a plasticator for plastication;
and 4, step 4: feeding the plasticated mixture into an extruder for extrusion, and cooling and forming.
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| WO2016042913A1 (en) * | 2014-09-19 | 2016-03-24 | 昭和電工株式会社 | Antibacterial/antiviral composition, antibacterial/antiviral agent, photocatalyst, and bacteria/virus inactivation method |
| CN108948634A (en) * | 2018-07-19 | 2018-12-07 | 芜湖桑乐金电子科技有限公司 | A kind of preparation method of the bacterium-restraining resin for Yoga ball |
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Application publication date: 20220614 |