CN112500651A - Long-acting antibacterial mildew-proof PP/PS plastic and preparation method thereof - Google Patents
Long-acting antibacterial mildew-proof PP/PS plastic and preparation method thereof Download PDFInfo
- Publication number
- CN112500651A CN112500651A CN202011208827.3A CN202011208827A CN112500651A CN 112500651 A CN112500651 A CN 112500651A CN 202011208827 A CN202011208827 A CN 202011208827A CN 112500651 A CN112500651 A CN 112500651A
- Authority
- CN
- China
- Prior art keywords
- antibacterial
- graphene oxide
- plastic
- microbeads
- filtering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 113
- 229920003023 plastic Polymers 0.000 title claims abstract description 63
- 239000004033 plastic Substances 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title description 25
- 239000011325 microbead Substances 0.000 claims abstract description 81
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 80
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 80
- 229960003255 natamycin Drugs 0.000 claims abstract description 48
- 235000010298 natamycin Nutrition 0.000 claims abstract description 48
- 239000004311 natamycin Substances 0.000 claims abstract description 48
- NCXMLFZGDNKEPB-FFPOYIOWSA-N natamycin Chemical compound O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C[C@@H](C)OC(=O)/C=C/[C@H]2O[C@@H]2C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 NCXMLFZGDNKEPB-FFPOYIOWSA-N 0.000 claims abstract description 48
- 239000002114 nanocomposite Substances 0.000 claims abstract description 47
- 230000003449 preventive effect Effects 0.000 claims abstract description 36
- 229910052709 silver Inorganic materials 0.000 claims abstract description 29
- 239000004332 silver Substances 0.000 claims abstract description 29
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 229920000168 Microcrystalline cellulose Polymers 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 13
- 235000019813 microcrystalline cellulose Nutrition 0.000 claims abstract description 13
- 239000008108 microcrystalline cellulose Substances 0.000 claims abstract description 13
- 229940016286 microcrystalline cellulose Drugs 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 239000002250 absorbent Substances 0.000 claims abstract description 9
- 230000002745 absorbent Effects 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- 239000004014 plasticizer Substances 0.000 claims abstract description 9
- 239000012745 toughening agent Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000004743 Polypropylene Substances 0.000 claims description 71
- 239000004793 Polystyrene Substances 0.000 claims description 71
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 48
- 238000001914 filtration Methods 0.000 claims description 46
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 31
- -1 5-tertiary butyl-4-hydroxyphenyl Chemical group 0.000 claims description 28
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 28
- 239000008367 deionised water Substances 0.000 claims description 27
- 229910021641 deionized water Inorganic materials 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 25
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 20
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 20
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 19
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- XJUZRXYOEPSWMB-UHFFFAOYSA-N Chloromethyl methyl ether Chemical compound COCCl XJUZRXYOEPSWMB-UHFFFAOYSA-N 0.000 claims description 14
- 239000003054 catalyst Substances 0.000 claims description 14
- 239000002270 dispersing agent Substances 0.000 claims description 14
- 239000003999 initiator Substances 0.000 claims description 14
- 239000004005 microsphere Substances 0.000 claims description 14
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 11
- IRIAEXORFWYRCZ-UHFFFAOYSA-N Butylbenzyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCC1=CC=CC=C1 IRIAEXORFWYRCZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 8
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 8
- MGWAVDBGNNKXQV-UHFFFAOYSA-N diisobutyl phthalate Chemical compound CC(C)COC(=O)C1=CC=CC=C1C(=O)OCC(C)C MGWAVDBGNNKXQV-UHFFFAOYSA-N 0.000 claims description 8
- 239000006185 dispersion Substances 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 229920006395 saturated elastomer Polymers 0.000 claims description 8
- 230000008961 swelling Effects 0.000 claims description 8
- 238000009210 therapy by ultrasound Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 6
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 6
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 6
- 239000008103 glucose Substances 0.000 claims description 6
- 229920002857 polybutadiene Polymers 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 6
- 230000003179 granulation Effects 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 5
- NDRPHZPVTSFYLH-UHFFFAOYSA-N 2,4,6-tris(2-butoxyphenyl)-1,3,5-triazine Chemical compound C(CCC)OC1=C(C=CC=C1)C1=NC(=NC(=N1)C1=C(C=CC=C1)OCCCC)C1=C(C=CC=C1)OCCCC NDRPHZPVTSFYLH-UHFFFAOYSA-N 0.000 claims description 4
- IKEHOXWJQXIQAG-UHFFFAOYSA-N 2-tert-butyl-4-methylphenol Chemical compound CC1=CC=C(O)C(C(C)(C)C)=C1 IKEHOXWJQXIQAG-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 4
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 claims description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims description 4
- WRVWOBJLGCVCSC-UHFFFAOYSA-N tris(1,2,2,6,6-pentamethylpiperidin-3-yl) phosphite Chemical compound CC1(C)N(C)C(C)(C)CCC1OP(OC1C(N(C)C(C)(C)CC1)(C)C)OC1C(C)(C)N(C)C(C)(C)CC1 WRVWOBJLGCVCSC-UHFFFAOYSA-N 0.000 claims description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 4
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 3
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 3
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229940113115 polyethylene glycol 200 Drugs 0.000 claims description 3
- 229940068918 polyethylene glycol 400 Drugs 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- 235000019260 propionic acid Nutrition 0.000 claims description 3
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 3
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 3
- YEYCMBWKTZNPDH-UHFFFAOYSA-N (2,2,6,6-tetramethylpiperidin-4-yl) benzoate Chemical compound C1C(C)(C)NC(C)(C)CC1OC(=O)C1=CC=CC=C1 YEYCMBWKTZNPDH-UHFFFAOYSA-N 0.000 claims description 2
- HGXJDMCMYLEZMJ-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOOC(=O)C(C)(C)C HGXJDMCMYLEZMJ-UHFFFAOYSA-N 0.000 claims description 2
- UICXTANXZJJIBC-UHFFFAOYSA-N 1-(1-hydroperoxycyclohexyl)peroxycyclohexan-1-ol Chemical compound C1CCCCC1(O)OOC1(OO)CCCCC1 UICXTANXZJJIBC-UHFFFAOYSA-N 0.000 claims description 2
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 2
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 2
- VOWAEIGWURALJQ-UHFFFAOYSA-N Dicyclohexyl phthalate Chemical compound C=1C=CC=C(C(=O)OC2CCCCC2)C=1C(=O)OC1CCCCC1 VOWAEIGWURALJQ-UHFFFAOYSA-N 0.000 claims description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 2
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 claims description 2
- 239000002174 Styrene-butadiene Substances 0.000 claims description 2
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- BLCKNMAZFRMCJJ-UHFFFAOYSA-N cyclohexyl cyclohexyloxycarbonyloxy carbonate Chemical compound C1CCCCC1OC(=O)OOC(=O)OC1CCCCC1 BLCKNMAZFRMCJJ-UHFFFAOYSA-N 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- JQCXWCOOWVGKMT-UHFFFAOYSA-N phthalic acid diheptyl ester Natural products CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC JQCXWCOOWVGKMT-UHFFFAOYSA-N 0.000 claims description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 2
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 claims description 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 2
- 239000011115 styrene butadiene Substances 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 claims description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 2
- 150000003568 thioethers Chemical class 0.000 claims description 2
- 235000005074 zinc chloride Nutrition 0.000 claims description 2
- 239000011592 zinc chloride Substances 0.000 claims description 2
- 229910010413 TiO 2 Inorganic materials 0.000 abstract description 19
- 239000004408 titanium dioxide Substances 0.000 abstract description 11
- 230000007246 mechanism Effects 0.000 abstract description 9
- 230000001699 photocatalysis Effects 0.000 abstract description 7
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 abstract description 4
- 239000011159 matrix material Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 29
- 239000003242 anti bacterial agent Substances 0.000 description 24
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 22
- 238000012360 testing method Methods 0.000 description 15
- 229940121375 antifungal agent Drugs 0.000 description 13
- 239000003429 antifungal agent Substances 0.000 description 12
- 241000894006 Bacteria Species 0.000 description 11
- 230000006872 improvement Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 7
- 241000233866 Fungi Species 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- OILXMJHPFNGGTO-UHFFFAOYSA-N (22E)-(24xi)-24-methylcholesta-5,22-dien-3beta-ol Natural products C1C=C2CC(O)CCC2(C)C2C1C1CCC(C(C)C=CC(C)C(C)C)C1(C)CC2 OILXMJHPFNGGTO-UHFFFAOYSA-N 0.000 description 5
- RQOCXCFLRBRBCS-UHFFFAOYSA-N (22E)-cholesta-5,7,22-trien-3beta-ol Natural products C1C(O)CCC2(C)C(CCC3(C(C(C)C=CCC(C)C)CCC33)C)C3=CC=C21 RQOCXCFLRBRBCS-UHFFFAOYSA-N 0.000 description 5
- OQMZNAMGEHIHNN-UHFFFAOYSA-N 7-Dehydrostigmasterol Natural products C1C(O)CCC2(C)C(CCC3(C(C(C)C=CC(CC)C(C)C)CCC33)C)C3=CC=C21 OQMZNAMGEHIHNN-UHFFFAOYSA-N 0.000 description 5
- DNVPQKQSNYMLRS-NXVQYWJNSA-N Ergosterol Natural products CC(C)[C@@H](C)C=C[C@H](C)[C@H]1CC[C@H]2C3=CC=C4C[C@@H](O)CC[C@]4(C)[C@@H]3CC[C@]12C DNVPQKQSNYMLRS-NXVQYWJNSA-N 0.000 description 5
- 230000032683 aging Effects 0.000 description 5
- DNVPQKQSNYMLRS-SOWFXMKYSA-N ergosterol Chemical compound C1[C@@H](O)CC[C@]2(C)[C@H](CC[C@]3([C@H]([C@H](C)/C=C/[C@@H](C)C(C)C)CC[C@H]33)C)C3=CC=C21 DNVPQKQSNYMLRS-SOWFXMKYSA-N 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 4
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 230000030833 cell death Effects 0.000 description 3
- 210000000170 cell membrane Anatomy 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 125000002328 sterol group Chemical group 0.000 description 3
- 241000228245 Aspergillus niger Species 0.000 description 2
- 241001465318 Aspergillus terreus Species 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 230000000843 anti-fungal effect Effects 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000007265 chloromethylation reaction Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 241000222122 Candida albicans Species 0.000 description 1
- 241001515917 Chaetomium globosum Species 0.000 description 1
- 241000235503 Glomus Species 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229940095731 candida albicans Drugs 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008686 ergosterol biosynthesis Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000002834 transmittance 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
- C08L25/00—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 an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a long-acting antibacterial mildew-proof PP/PS plastic which is prepared from the following raw materials: PP master batch, PS master batch, antibacterial mildew preventive, microcrystalline cellulose, plasticizer, toughening agent, antioxidant and ultraviolet absorbent; the antibacterial mildew preventive contains 2-5 wt% of graphene oxide/silver nano composite and 3-7 wt% of natamycin. According to the invention, the microbeads loaded with the graphene oxide/silver nano compound and the natamycin and the microbeads loaded with the graphene oxide/TiO 2 nano compound and the natamycin are simultaneously added into the PP/PS plastic, the antibacterial and mildew-proof performances of the plastic are respectively improved by the two microbeads through the mechanisms of silver ion antibacterial and titanium dioxide photocatalytic antibacterial, the prepared microbeads take the PP/PS as a main body and are consistent with the base material of the plastic, so that the compatibility of the microbeads and the matrix is improved, the mechanical properties of the plastic cannot be influenced by the addition of the antibacterial and mildew-proof agent, and the application prospect is good.
Description
Technical Field
The invention relates to the technical field of plastics, in particular to a long-acting antibacterial mildew-proof PP/PS plastic and a preparation method thereof.
Background
With the progress of human society, plastic products are more and more important in daily life. Meanwhile, various environmental pollutions are increasingly serious, and plastic products are easily polluted by bacteria in the long-term use process, so that the spreading and spreading of harmful bacteria are directly caused, and the health of people is harmed.
The antibacterial plastic is characterized in that an antibacterial agent is added into the plastic, so that the plastic has antibacterial property, bacteria stained on the plastic can be killed or inhibited within a certain time, and compared with the conventional chemical and physical methods, the antibacterial plastic has long sterilization time, and is economical and convenient. The antibacterial agent is used as an additive and can effectively inhibit the breeding of bacteria. Plastic antibacterial agents are generally classified into inorganic antibacterial agents, organic antibacterial agents, natural antibacterial agents and complex antibacterial agents. Because different antibacterial agents have different antibacterial action mechanisms and effectiveness on the same pathogenic bacteria and different antibacterial action mechanisms and inhibition ranges of the same antibacterial agent on different pathogenic bacteria, the research on the antibacterial agent which is long-acting, broad-spectrum, high-efficiency and safe is needed, and the research on the antibacterial mechanism is very important. However, most of the antibacterial agents added into plastics at present have unobvious antibacterial effect and poor compatibility with plastics, so that the mechanical property of the plastics is remarkably reduced, and the light transmittance of the plastics is influenced due to poor transparency.
Disclosure of Invention
The invention aims to provide a long-acting antibacterial mildew-proof PP/PS plastic and a preparation method thereof, wherein microbeads loaded with a graphene oxide/silver nano compound and a natamycin and microbeads loaded with a graphene oxide/TiO 2 nano compound and a natamycin are simultaneously added into the PP/PS plastic, the antibacterial mildew-proof performance of the plastic is improved by the two microbeads through mechanisms of silver ion antibacterial and titanium dioxide photocatalytic bacteriostasis respectively, and the prepared microbeads take PP/PS as a main body and are consistent with the base material of the plastic, so that the compatibility of the microbeads and the base body is improved, the mechanical property of the plastic cannot be influenced by the addition of the antibacterial mildew-proof agent, and the PP/PS plastic has a good application prospect.
The technical scheme of the invention is realized as follows:
the invention provides a long-acting antibacterial mildew-proof PP/PS plastic which is prepared from the following raw materials: PP master batch, PS master batch, antibacterial mildew preventive, microcrystalline cellulose, plasticizer, toughening agent, antioxidant and ultraviolet absorbent;
the antibacterial mildew preventive contains 2-5 wt% of graphene oxide/silver nano composite and 3-7 wt% of natamycin.
As a further improvement of the invention, the health-care food is prepared from the following raw materials in parts by weight: 200 parts of PP master batch, 250 parts of PS master batch, 5-15 parts of antibacterial mildew preventive, 5-10 parts of microcrystalline cellulose, 1-5 parts of plasticizer, 1-5 parts of toughening agent, 1-5 parts of antioxidant and 1-3 parts of ultraviolet absorbent.
As a further improvement of the invention, the plasticizer is selected from one or a mixture of more of di (2-ethylhexyl) phthalate, dioctyl phthalate, di-n-octyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate and diisobutyl phthalate; the toughening agent is selected from one or more of ethylene propylene rubber, polybutadiene rubber, styrene-butadiene thermoplastic elastomer, acrylonitrile-butadiene-styrene copolymer, chlorinated polyethylene and ethylene-vinyl acetate copolymer; the antioxidant is selected from one or more of 2, 6-tertiary butyl-4-methylphenol, bis (3, 5-tertiary butyl-4-hydroxyphenyl) thioether, tetra [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, didodecyl alcohol ester, ditetradecyl alcohol ester and dioctadecyl alcohol ester, trioctyl ester, tridecyl ester, tridodecyl alcohol ester and trihexadecyl alcohol ester; the ultraviolet absorbent is one or a mixture of more of 2, 2 '-thiobis (4-tert-octylphenoloxy) nickel, tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite, 4-benzoyloxy-2, 2, 6, 6-tetramethylpiperidine, 2, 4, 6-tris (2' n-butoxyphenyl) -1, 3, 5-triazine and hexamethylphosphoric triamide.
As a further improvement of the invention, the antibacterial mildew preventive is prepared by the following method:
s1, dissolving a dispersing agent in tetrahydrofuran, introducing nitrogen, adding styrene and propylene monomers until the absorption of the tetrahydrofuran on the propylene is saturated, adding an initiator, heating to 50-70 ℃, reacting for 2-5h, and filtering to obtain PP/PS microbeads;
s2, uniformly dispersing the PP/PS microbeads in tetrahydrofuran, swelling for 2-5h, adding monochlorodimethyl ether and a catalyst, reacting for 1-3h at 70-90 ℃, adding ethylene glycol for treating for 0.5-1h, and filtering to obtain porous microbeads;
s3, preparing graphene oxide by adopting a Hummers method;
s4, adding graphene oxide into deionized water, carrying out ultrasonic treatment for 0.5-1h to obtain a uniform graphene oxide-water dispersion, adding silver nitrate, glucose and ammonia water in a dark place, carrying out vigorous stirring reaction for 1-2h, filtering, and repeatedly washing with deionized water to obtain a graphene oxide/silver nano composite;
s5, adding the porous microspheres into an aqueous solution containing 2.5-5 wt% of silane coupling agent, heating to 70-90 ℃ for reaction for 0.5-1h, filtering to obtain surface modified microspheres, adding the surface modified microspheres into deionized water, adding graphene oxide/silver nano composite and natamycin, heating to 50-70 ℃, stirring for reaction for 1-3h, and filtering to obtain the antibacterial and mildewproof agent.
As a further improvement of the invention, the antibacterial and mildewproof agent contains 2-5 wt% of graphene oxide/TiO 2 nano-composite and 3-7 wt% of natamycin.
As a further improvement of the invention, the antibacterial mildew preventive is prepared by the following method:
s1, dissolving a dispersing agent in tetrahydrofuran, introducing nitrogen, adding styrene and propylene monomers until the absorption of the tetrahydrofuran on the propylene is saturated, adding an initiator, heating to 50-70 ℃, reacting for 2-5h, and filtering to obtain PP/PS microbeads;
s2, uniformly dispersing the PP/PS microbeads in tetrahydrofuran, swelling for 2-5h, adding monochlorodimethyl ether and a catalyst, reacting for 1-3h at 70-90 ℃, adding ethylene glycol for treating for 0.5-1h, and filtering to obtain porous microbeads;
s3, preparing graphene oxide by adopting a Hummers method;
s4, adding graphene oxide into deionized water, carrying out ultrasonic treatment for 0.5-1h to obtain uniform graphene oxide-water dispersion, adding tetrabutyl titanate in a dark place, carrying out vigorous stirring reaction for 1-2h, filtering, and repeatedly washing with deionized water to obtain a graphene oxide/TiO 2 nano composite;
s5, adding the porous microspheres into an aqueous solution containing 2.5-5 wt% of silane coupling agent, heating to 70-90 ℃ for reaction for 0.5-1h, filtering to obtain surface modified microspheres, adding the surface modified microspheres into deionized water, adding graphene oxide/TiO 2 nano-composite and natamycin, heating to 50-70 ℃, stirring for reaction for 1-3h, and filtering to obtain the antibacterial mildew preventive.
As a further improvement of the invention, the dispersant is selected from one or a mixture of more of polyethylene glycol 200, polyethylene glycol 400, polyethylene wax and polyvinyl alcohol; the initiator is selected from one or a mixture of more of potassium persulfate, sodium persulfate, ammonium persulfate, benzoyl peroxide, lauroyl peroxide, cumene hydroperoxide, tert-butyl hydroperoxide, di-tert-butyl peroxide, dicumyl peroxide, tert-butyl peroxybenzoate, tert-butyl peroxypivalate, methyl ethyl ketone peroxide, cyclohexanone peroxide, diisopropyl peroxydicarbonate and dicyclohexyl peroxydicarbonate; the catalyst is selected from one or a mixture of more of anhydrous zinc chloride, stannic chloride, ferric trichloride and aluminum trichloride; the silane coupling agent is selected from one or a mixture of KH550, KH560, KH570, KH580, KH602 and KH 792.
As a further improvement of the invention, the mass ratio of the dispersant, the styrene, the propylene and the initiator is 1: (100) 200: 70-150: 0.5-0.7); the mass ratio of the PP/PS microbeads to the monochlorodimethyl ether to the catalyst to the ethylene glycol is 100: (35-55): (1-1.2): (5-10); the mass ratio of the graphene oxide to the silver nitrate to the glucose to the ammonia water is 10: (2-5): (5-12): (10-20); the mass ratio of the surface modified microbeads to the graphene oxide/silver nano composite to the natamycin is 100: (4-7): (5-10).
As a further improvement of the invention, the mass ratio of the dispersant, the styrene, the propylene and the initiator is 1: (100) 200: 70-150: 0.5-0.7); the mass ratio of the PP/PS microbeads to the monochlorodimethyl ether to the catalyst to the ethylene glycol is 100: (35-55): (1-1.2): (5-10); the mass ratio of the graphene oxide to the tetrabutyl titanate is 10: (2-5); the mass ratio of the surface modified microbeads to the graphene oxide/TiO 2 nano composite to the natamycin is 100: (4-7): (5-10).
The invention further provides a preparation method of the long-acting antibacterial mildew-proof PP/PS plastic, which comprises the following steps:
s1, adding PP master batches, PS master batches, an antibacterial mildew preventive, microcrystalline cellulose, a plasticizer, a toughening agent, an antioxidant and an ultraviolet absorbent into a double-screw extruder according to a ratio, and mixing and extruding;
s2, conveying the material extruded in the step S1 to a single-screw extruder for extrusion granulation, so as to obtain the long-acting antibacterial mildew-proof PP/PS plastic.
The four temperature sections in the mixing and extruding process are as follows: the feeding section 110-.
The invention has the following beneficial effects: the invention has prepared a kind of antibacterial mildew preventive, regard PP/PS material as the main material of the microballoons, through the additional cross-linking reaction, send the reaction of the high cross-linking degree with chloromethylation reagent monochlorodimethyl ether on the benzene ring of styrene, form methylene bridge, thus get the microballoons of the high specific surface area, further through the function of the pore-forming agent ethanediol, make the porous microballoons of the high specific surface area originally have more deeper pore canals, further improve its specific surface area;
on the other hand, the invention bonds on the surface of graphene oxide through silver mirror reaction to form a nano-composite, and the nano-composite and the natamycin are coupled in the pore channel of the porous microbead together under the action of a silane coupling agent, so that the antibacterial agent graphene oxide/silver nano-composite and the mildew preventive natamycin are efficiently loaded, the natamycin is a natural mildew preventive, the action mechanism of the natamycin is to combine with ergosterol and other sterol groups of fungi to inhibit the biosynthesis of the ergosterol, so that the cell membrane is distorted, and finally the leakage is caused to cause cell death, and after the two are compounded, most of bacteria, fungi and the like can be killed or inhibited from increasing value, so that the efficient antibacterial effect is achieved, and the composite has better toughening performance;
according to another scheme of the invention, tetrabutyl titanate is hydrolyzed by a sol-gel method to obtain titanium dioxide, the titanium dioxide is bonded on the surface of graphene oxide to form a nano composite, the nano composite and natamycin are coupled in a pore channel of porous microbeads under the action of a silane coupling agent, so that the antibacterial mildew preventive graphene oxide/TiO 2 nano composite and the natamycin are efficiently loaded, and the nano composite of titanium dioxide effectively inhibits bacterial growth and prevents growth of mildew through photocatalysis;
according to the other method, microbeads loaded with the graphene oxide/silver nano compound and the natamycin and microbeads loaded with the graphene oxide/TiO 2 nano compound and the natamycin are added into the PP/PS plastic at the same time, and the antibacterial and mildew-proof performances of the plastic are improved by the two microbeads through mechanisms of silver ion antibacterial and titanium dioxide photocatalytic antibacterial respectively;
the prepared micro-bead takes PP/PS as a main body, is consistent with the base material of the plastic, so that the compatibility of the micro-bead and the base body is improved, the mechanical property of the plastic cannot be influenced by the addition of the antibacterial mildew preventive, and the micro-bead has a better application prospect.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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 given herein without making any creative effort, shall fall within the protection scope of the present invention.
Preparation example 1 antibacterial and antifungal agent
The preparation method comprises the following steps:
s1, dissolving 1g of dispersant polyethylene glycol 400 in 200mL of tetrahydrofuran, introducing nitrogen, adding 100g of styrene and 70g of propylene monomers until the propylene absorption of the tetrahydrofuran is saturated, adding 0.5g of initiator potassium persulfate, heating to 50 ℃, reacting for 2 hours, and filtering to obtain PP/PS microbeads;
s2, uniformly dispersing 100g of PP/PS microbeads in 200mL of tetrahydrofuran, swelling for 2h, adding 35g of chlorodimethyl ether and 1g of catalyst tin chloride, reacting for 1h at 70 ℃, adding 5g of glycol, treating for 0.5h, and filtering to obtain porous microbeads;
s3, preparing graphene oxide by adopting a Hummers method;
s4, adding 10g of graphene oxide into 50mL of deionized water, carrying out ultrasonic treatment for 0.5h to obtain a uniform graphene oxide-water dispersion solution, adding 2g of silver nitrate, 5g of glucose and 10g of ammonia water in a dark place, carrying out vigorous stirring reaction for 1h, filtering, and repeatedly washing with deionized water to obtain a graphene oxide/silver nano compound;
s5, adding 100g of porous microbeads into 200mL of aqueous solution containing 2.5 wt% of silane coupling agent KH550, heating to 70 ℃, reacting for 0.5h, filtering to obtain surface modified microbeads, adding the surface modified microbeads into deionized water, adding 4g of graphene oxide/silver nano-composite and 5g of natamycin, heating to 50 ℃, stirring, reacting for 1h, and filtering to obtain the antibacterial mildew preventive, wherein the antibacterial mildew preventive contains 2 wt% of graphene oxide/silver nano-composite and 3 wt% of natamycin.
Preparation example 2 antibacterial and antifungal agent
The preparation method comprises the following steps:
s1, dissolving 1g of dispersant polyethylene glycol 200 in 200mL of tetrahydrofuran, introducing nitrogen, adding 200g of styrene and 150g of propylene monomers until the propylene absorption by the tetrahydrofuran is saturated, adding 0.7g of initiator cumene hydroperoxide, heating to 70 ℃, reacting for 5 hours, and filtering to obtain PP/PS microbeads;
s2, uniformly dispersing 100g of PP/PS microbeads in 200mL of tetrahydrofuran, swelling for 5h, adding 55g of monochlorodimethyl ether and 1.2g of catalyst ferric trichloride, reacting for 3h at 90 ℃, adding 10g of ethylene glycol, treating for 1h, and filtering to obtain porous microbeads;
s3, preparing graphene oxide by adopting a Hummers method;
s4, adding 10g of graphene oxide into 50mL of deionized water, carrying out ultrasonic treatment for 1h to obtain a uniform graphene oxide-water dispersion, adding 5g of silver nitrate, 12g of glucose and 20g of ammonia water in a dark place, carrying out vigorous stirring reaction for 2h, filtering, and repeatedly washing with deionized water to obtain a graphene oxide/silver nano compound;
s5, adding 100g of porous microbeads into 200mL of aqueous solution containing 5 wt% of silane coupling agent KH560, heating to 90 ℃, reacting for 1h, filtering to obtain surface-modified microbeads, adding the surface-modified microbeads into deionized water, adding 7g of graphene oxide/silver nano-composite and 10g of natamycin, heating to 70 ℃, stirring, reacting for 3h, and filtering to obtain the antibacterial mildew preventive containing 5 wt% of graphene oxide/silver nano-composite and 7 wt% of natamycin.
Comparative example 1
Compared with preparation example 2, natamycin was not added and other conditions were not changed.
S5, adding 100g of porous microbeads into 200mL of aqueous solution containing 5 wt% of silane coupling agent KH560, heating to 90 ℃, reacting for 1h, filtering to obtain surface-modified microbeads, adding the surface-modified microbeads into deionized water, adding 17g of graphene oxide/silver nano-composite, heating to 70 ℃, stirring, reacting for 3h, and filtering to obtain the antibacterial mildew preventive containing 12 wt% of graphene oxide/silver nano-composite.
Comparative example 2
Compared with preparation example 2, the graphene oxide/silver nanocomposite is not added, and other conditions are not changed.
S5, adding 100g of porous microbeads into 200mL of aqueous solution containing 5 wt% of silane coupling agent KH560, heating to 90 ℃, reacting for 1h, filtering to obtain surface-modified microbeads, adding the surface-modified microbeads into deionized water, adding 17g of natamycin, heating to 70 ℃, stirring, reacting for 3h, and filtering to obtain the antibacterial mildew preventive containing 12 t% of natamycin.
Preparation example 3 antibacterial and antifungal agent
The preparation method comprises the following steps:
s1, dissolving 1g of dispersant polyethylene wax in 200mL of tetrahydrofuran, introducing nitrogen, adding 100g of styrene and 70g of propylene monomers until the propylene absorption by the tetrahydrofuran is saturated, adding 0.5g of initiator di-tert-butyl peroxide, heating to 50 ℃, reacting for 2 hours, and filtering to obtain PP/PS microbeads;
s2, uniformly dispersing 100g of PP/PS microbeads in 200mL of tetrahydrofuran, swelling for 2h, adding 35g of monochlorodimethyl ether and 1g of catalyst ferric trichloride, reacting for 1h at 70 ℃, adding 5g of ethylene glycol, treating for 0.5h, and filtering to obtain porous microbeads;
s3, preparing graphene oxide by adopting a Hummers method;
s4, adding 10g of graphene oxide into deionized water, carrying out ultrasonic treatment for 0.5h to obtain uniform graphene oxide-water dispersion, adding 2g of tetrabutyl titanate in a dark place, carrying out vigorous stirring reaction for 1h, filtering, and repeatedly washing with deionized water to obtain a graphene oxide/TiO 2 nano composite;
s5, adding 100g of porous microbeads into 200mL of aqueous solution containing 2.5 wt% of silane coupling agent KH580, heating to 70 ℃, reacting for 0.5h, filtering to obtain surface modified microbeads, adding the surface modified microbeads into deionized water, adding 4g of graphene oxide/TiO 2 nano-composite and 5g of natamycin, heating to 50 ℃, stirring, reacting for 1h, and filtering to obtain the antibacterial mildew preventive, wherein the antibacterial mildew preventive contains 2 wt% of graphene oxide/TiO 2 nano-composite and 3 wt% of natamycin.
Preparation example 4 antibacterial and antifungal agent
The preparation method comprises the following steps:
s1, dissolving 1g of dispersant polyvinyl alcohol in 200mL of tetrahydrofuran, introducing nitrogen, adding 200g of styrene and 150g of propylene monomers until the propylene absorption of the tetrahydrofuran is saturated, adding 0.7g of initiator methyl ethyl ketone peroxide, heating to 70 ℃, reacting for 5 hours, and filtering to obtain PP/PS microbeads;
s2, uniformly dispersing 100g of PP/PS microbeads in 200mL of tetrahydrofuran, swelling for 5h, adding 55g of monochlorodimethyl ether and 1.2g of catalyst aluminum trichloride, reacting for 3h at 90 ℃, adding 10g of ethylene glycol, treating for 1h, and filtering to obtain porous microbeads;
s3, preparing graphene oxide by adopting a Hummers method;
s4, adding 10g of graphene oxide into deionized water, carrying out ultrasonic treatment for 1h to obtain uniform graphene oxide-water dispersion, adding 5g of tetrabutyl titanate in a dark place, carrying out violent stirring reaction for 2h, filtering, and repeatedly washing with deionized water to obtain a graphene oxide/TiO 2 nano composite;
s5, adding 100g of porous microbeads into 200mL of aqueous solution containing 5 wt% of silane coupling agent KH570, heating to 90 ℃, reacting for 1h, filtering to obtain surface-modified microbeads, adding the surface-modified microbeads into deionized water, adding 7g of graphene oxide/TiO 2 nano-composite and 10g of natamycin, heating to 70 ℃, stirring, reacting for 3h, and filtering to obtain the antibacterial mildew preventive containing 5 wt% of graphene oxide/TiO 2 nano-composite and 7 wt% of natamycin.
Comparative example 3
Compared with preparation example 4, natamycin was not added and other conditions were not changed.
S5, adding 100g of porous microbeads into 200mL of aqueous solution containing 5 wt% of silane coupling agent KH570, heating to 90 ℃, reacting for 1h, filtering to obtain surface-modified microbeads, adding the surface-modified microbeads into deionized water, adding 17g of graphene oxide/TiO 2 nano-composite, heating to 70 ℃, stirring, reacting for 3h, and filtering to obtain the antibacterial mildew preventive containing 12 wt% of graphene oxide/TiO 2 nano-composite.
Example 1
The raw materials comprise the following components in parts by weight: 100 parts of PP master batch, 150 parts of PS master batch, 5 parts of antibacterial and mildewproof agent prepared in preparation example 1, 5 parts of microcrystalline cellulose, 1 part of butyl benzyl phthalate, 1 part of polybutadiene rubber, 1 part of tridecyl ester and 1 part of 2, 4, 6-tri (2' n-butoxyphenyl) -1, 3, 5-triazine.
The preparation method comprises the following steps:
s1, adding PP master batches, PS master batches, an antibacterial mildew preventive, microcrystalline cellulose, butyl benzyl phthalate, polybutadiene rubber, tridecyl ester, 2, 4, 6-tris (2' n-butoxyphenyl) -1, 3, 5-triazine into a double-screw extruder according to a ratio, and mixing and extruding;
s2, conveying the material extruded in the step S1 to a single-screw extruder for extrusion granulation, so as to obtain the long-acting antibacterial mildew-proof PP/PS plastic.
The four temperature sections in the mixing extrusion process are as follows: the feeding section is 110 ℃, the conveying section is 125 ℃, the melting section is 135 ℃ and the extrusion section is 140 ℃.
Example 2
The raw materials comprise the following components in parts by weight: 200 parts of PP master batch, 250 parts of PS master batch, 15 parts of the antibacterial and antifungal agent prepared in preparation example 2, 10 parts of microcrystalline cellulose, 5 parts of diisobutyl phthalate, 5 parts of tetra [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and 3 parts of hexamethylphosphoric triamide.
The preparation method comprises the following steps:
s1, adding PP master batches, PS master batches, an antibacterial mildew preventive, microcrystalline cellulose, diisobutyl phthalate, pentaerythritol tetrakis [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionate ] and hexamethylphosphoric triamide into a double-screw extruder according to a ratio for mixing and extruding;
s2, conveying the material extruded in the step S1 to a single-screw extruder for extrusion granulation, so as to obtain the long-acting antibacterial mildew-proof PP/PS plastic.
The four temperature sections in the mixing extrusion process are as follows: the feeding section is 120 ℃, the conveying section is 135 ℃, the melting section is 145 ℃, and the extrusion section is 150 ℃.
Example 3
The raw materials comprise the following components in parts by weight: 150 parts of PP master batch, 200 parts of PS master batch, 10 parts of the antibacterial and mildewproof agent prepared in preparation example 2, 7 parts of microcrystalline cellulose, 3 parts of di (2-ethylhexyl) phthalate, 3 parts of polybutadiene rubber, 3 parts of 2, 6-tertiary butyl-4-methylphenol and 2 parts of tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite.
The preparation method comprises the following steps:
s1, adding PP (polypropylene) master batches, PS (polystyrene) master batches, an antibacterial mildew preventive, microcrystalline cellulose, di (2-ethylhexyl) phthalate, polybutadiene rubber, 2, 6-tertiary butyl-4-methylphenol and tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite ester into a double-screw extruder according to a ratio, and mixing and extruding;
s2, conveying the material extruded in the step S1 to a single-screw extruder for extrusion granulation, so as to obtain the long-acting antibacterial mildew-proof PP/PS plastic.
The four temperature sections in the mixing extrusion process are as follows: a feeding section of 115 ℃, a conveying section of 130 ℃, a melting section of 140 ℃ and an extrusion section of 145 ℃.
Example 4
Compared with the example 3, the antibacterial and mildewproof agent is prepared from the preparation example 4, and other conditions are not changed.
Example 5
Compared with the embodiment 3, the antibacterial and mildewproof agent is prepared by mixing the antibacterial and mildewproof agents prepared in the preparation examples 2 and 4 according to the ratio of 1:1, and other conditions are not changed.
Comparative example 4
Compared with example 3, the antibacterial and antifungal agent is prepared from comparative example 1, and other conditions are not changed.
Comparative example 5
Compared with example 3, the antibacterial and antifungal agent is prepared from comparative example 2, and other conditions are not changed.
Comparative example 6
Compared with example 3, the antibacterial and antifungal agent is prepared from comparative example 3, and other conditions are not changed.
Test example 1 antibacterial and mildewproof property test
Test objects: the long-acting antibacterial mildew-proof PP/PS plastics prepared in the examples 1-5 and the comparative examples 4-6 and the commercial antibacterial mildew-proof PP/PS plastics.
And (3) drying the long-acting antibacterial mildew-proof PP/PS plastic in a constant-temperature oven at 95 ℃ for 5 hours, heating and injecting into a plastic sample with the thickness of 50mm multiplied by 50mm, and performing an antibacterial test.
Antibacterial activity against Escherichia coli and Staphylococcus aureus
Testing is carried out according to a test method 1 pasting method of standard GB21551.2-2010, and bacteria for detection: escherichia coli; staphylococcus aureus bacteria; candida albicans; each example and comparative example was tested in parallel for 5 and averaged. The results are shown in Table 1.
TABLE 1
1. Inhibition rate to mould
The test was carried out according to the test method of Standard QB/T2591 (2003) with the following bacteria: aspergillus niger, Aspergillus terreus, Chaetomium globosum, 5 per example and comparative example were tested in parallel and averaged. The results are shown in Table 2.
TABLE 2
Group of | Aspergillus niger mould growth grade | Aspergillus terreus growth grade | Glomus coccineus mildew grade |
Example 1 | Level 1 | Level 0 | Level 0 |
Example 2 | Level 0 | Level 0 | Level 1 |
Example 3 | Level 0 | Level 0 | Level 0 |
Example 4 | Level 0 | Level 0 | Level 0 |
Example 5 | Level 0 | Level 0 | Level 0 |
Comparative example 4 | Stage 2 | Level 1 | Stage 2 |
Comparative example 5 | Level 1 | Level 0 | Level 1 |
Comparative example 6 | Stage 2 | Level 1 | Level 1 |
Is commercially available | Stage 2 | Stage 2 | Stage 2 |
Test example 2 mechanical Property test
Test objects: the long-acting antibacterial mildew-proof PP/PS plastics prepared in the examples 1-5 and the comparative examples 4-6 and the commercial antibacterial mildew-proof PP/PS plastics.
The tensile strength is detected according to the method GB/T1040.1-2018;
the bending property is detected according to the GB/T9341-2008 method;
the impact strength is detected according to a GB/T1843 method;
the results are shown in Table 3.
TABLE 3
Test example 3 aging resistance test
Test objects: the long-acting antibacterial mildew-proof PP/PS plastics prepared in the examples 1-5 and the comparative examples 4-6 and the commercial antibacterial mildew-proof PP/PS plastics.
The products obtained in the above examples and comparative examples were subjected to a performance test after artificially accelerated aging under conditions of (90 ℃, 500 hours); the results are shown in Table 4.
TABLE 4
Test example 4 high temperature resistance test
Test objects: the long-acting antibacterial mildew-proof PP/PS plastics prepared in the examples 1-5 and the comparative examples 4-6 and the commercial antibacterial mildew-proof PP/PS plastics.
The heat distortion temperature was carried out in accordance with ISO75, the specimen dimensions were 120 mm. times.10 mm. times.3 mm, the load was 1.8MPa, and the results are shown in Table 5.
TABLE 5
As can be seen from the table, the antibacterial plastic prepared by the embodiment of the invention has good mechanical property, ageing resistance and high temperature resistance.
Comparative example 4, comparative example 5, comparative example 6 compared with example 3, respectively using the antibacterial and antifungal agents prepared in comparative examples 1, 2, 3, in comparative examples 1, 2, 3 only adding graphene oxide/silver nanocomposite, natamycin, graphene oxide/TiO 2 nanocomposite, its antibacterial and antifungal effects are significantly reduced, comparative examples 4, 6 antibacterial better, comparative example 5 antifungal, natamycin is a natural antifungal agent, its mechanism of action is to combine with ergosterol and other sterol groups of fungi, inhibiting ergosterol biosynthesis, thus making cell membrane distortion, finally causing leakage, causing cell death, after the two are compounded, can kill or inhibit proliferation of most bacteria, fungi, etc., thus achieving high-efficiency antibacterial effect, the titanium dioxide nano-scale composite has photocatalytic performance, effectively inhibiting the breeding of bacteria and preventing the growth of mould, and the silver nano compound can dissipate silver ions, thereby efficiently inhibiting the breeding of bacteria; on the other hand, the aging resistance and mechanical property of the comparative example 5 are superior to those of the comparative examples 4 and 6, and it can be seen that the addition of natamycin also has the characteristics of toughening, improving mechanical property and aging resistance to a certain extent.
Example 5 compared with comparative example 3, the antibacterial and antifungal agents prepared in preparation examples 2 and 4 are added, the effect is the best, and the addition of the two antibacterial and antifungal agents has a synergistic effect.
Compared with the prior art, the antibacterial mildew preventive is prepared by taking a PP/PS material as a main material of microspheres, and through an additional crosslinking reaction, sending a reaction with high crosslinking degree with chloromethylation reagent monochlorodimethyl ether on a benzene ring of styrene to form a methylene bridge, so that microbeads with high specific surface area are obtained, and further through the action of a pore-forming agent glycol, the porous microbeads with high specific surface area originally have more and deeper pore channels, so that the specific surface area of the microspheres is further improved;
on the other hand, the invention bonds on the surface of graphene oxide through silver mirror reaction to form a nano-composite, and the nano-composite and the natamycin are coupled in the pore channel of the porous microbead together under the action of a silane coupling agent, so that the antibacterial agent graphene oxide/silver nano-composite and the mildew preventive natamycin are efficiently loaded, the natamycin is a natural mildew preventive, the action mechanism of the natamycin is to combine with ergosterol and other sterol groups of fungi to inhibit the biosynthesis of the ergosterol, so that the cell membrane is distorted, and finally the leakage is caused to cause cell death, and after the two are compounded, most of bacteria, fungi and the like can be killed or inhibited from increasing value, so that the efficient antibacterial effect is achieved, and the composite has better toughening performance;
according to another scheme of the invention, tetrabutyl titanate is hydrolyzed by a sol-gel method to obtain titanium dioxide, the titanium dioxide is bonded on the surface of graphene oxide to form a nano composite, the nano composite and natamycin are coupled in a pore channel of porous microbeads under the action of a silane coupling agent, so that the antibacterial mildew preventive graphene oxide/TiO 2 nano composite and the natamycin are efficiently loaded, and the nano composite of titanium dioxide effectively inhibits bacterial growth and prevents growth of mildew through photocatalysis;
according to the other method, microbeads loaded with the graphene oxide/silver nano compound and the natamycin and microbeads loaded with the graphene oxide/TiO 2 nano compound and the natamycin are added into the PP/PS plastic at the same time, and the antibacterial and mildew-proof performances of the plastic are improved by the two microbeads through mechanisms of silver ion antibacterial and titanium dioxide photocatalytic antibacterial respectively;
the prepared micro-bead takes PP/PS as a main body, is consistent with the base material of the plastic, so that the compatibility of the micro-bead and the base body is improved, the mechanical property of the plastic cannot be influenced by the addition of the antibacterial mildew preventive, and the micro-bead has a better application prospect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The long-acting antibacterial mildew-proof PP/PS plastic is characterized by being prepared from the following raw materials: PP master batch, PS master batch, antibacterial mildew preventive, microcrystalline cellulose, plasticizer, toughening agent, antioxidant and ultraviolet absorbent;
the antibacterial mildew preventive contains 2-5 wt% of graphene oxide/silver nano composite and 3-7 wt% of natamycin.
2. The long-acting antibacterial and mildewproof PP/PS plastic is characterized by being prepared from the following raw materials in parts by weight: 200 parts of PP master batch, 250 parts of PS master batch, 5-15 parts of antibacterial mildew preventive, 5-10 parts of microcrystalline cellulose, 1-5 parts of plasticizer, 1-5 parts of toughening agent, 1-5 parts of antioxidant and 1-3 parts of ultraviolet absorbent.
3. The long-acting antibacterial and mildewproof PP/PS plastic according to claim 1, wherein the plasticizer is one or a mixture of two or more of di (2-ethylhexyl) phthalate, dioctyl phthalate, di-n-octyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate and diisobutyl phthalate; the toughening agent is selected from one or more of ethylene propylene rubber, polybutadiene rubber, styrene-butadiene thermoplastic elastomer, acrylonitrile-butadiene-styrene copolymer, chlorinated polyethylene and ethylene-vinyl acetate copolymer; the antioxidant is selected from one or more of 2, 6-tertiary butyl-4-methylphenol, bis (3, 5-tertiary butyl-4-hydroxyphenyl) thioether, tetra [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, didodecyl alcohol ester, ditetradecyl alcohol ester and dioctadecyl alcohol ester, trioctyl ester, tridecyl ester, tridodecyl alcohol ester and trihexadecyl alcohol ester; the ultraviolet absorbent is one or a mixture of more of 2, 2 '-thiobis (4-tert-octylphenoloxy) nickel, tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite, 4-benzoyloxy-2, 2, 6, 6-tetramethylpiperidine, 2, 4, 6-tris (2' n-butoxyphenyl) -1, 3, 5-triazine and hexamethylphosphoric triamide.
4. The long-acting antibacterial and mildewproof PP/PS plastic is prepared by the following method according to claim 1:
s1, dissolving a dispersing agent in tetrahydrofuran, introducing nitrogen, adding styrene and propylene monomers until the absorption of the tetrahydrofuran on the propylene is saturated, adding an initiator, heating to 50-70 ℃, reacting for 2-5h, and filtering to obtain PP/PS microbeads;
s2, uniformly dispersing the PP/PS microbeads in tetrahydrofuran, swelling for 2-5h, adding monochlorodimethyl ether and a catalyst, reacting for 1-3h at 70-90 ℃, adding ethylene glycol for treating for 0.5-1h, and filtering to obtain porous microbeads;
s3, preparing graphene oxide by adopting a Hummers method;
s4, adding graphene oxide into deionized water, carrying out ultrasonic treatment for 0.5-1h to obtain a uniform graphene oxide-water dispersion, adding silver nitrate, glucose and ammonia water in a dark place, carrying out vigorous stirring reaction for 1-2h, filtering, and repeatedly washing with deionized water to obtain a graphene oxide/silver nano composite;
s5, adding the porous microspheres into an aqueous solution containing 2.5-5 wt% of silane coupling agent, heating to 70-90 ℃ for reaction for 0.5-1h, filtering to obtain surface modified microspheres, adding the surface modified microspheres into deionized water, adding graphene oxide/silver nano composite and natamycin, heating to 50-70 ℃, stirring for reaction for 1-3h, and filtering to obtain the antibacterial and mildewproof agent.
5. The long-acting antibacterial and mildewproof PP/PS plastic as claimed in claim 1, wherein the antibacterial and mildewproof agent contains 2-5 wt% of graphene oxide/TiO2The nano-composite and 3-7 wt% of natamycin.
6. The long-acting antibacterial and mildewproof PP/PS plastic according to claim 5, wherein the antibacterial and mildewproof agent is prepared by the following method:
s1, dissolving a dispersing agent in tetrahydrofuran, introducing nitrogen, adding styrene and propylene monomers until the absorption of the tetrahydrofuran on the propylene is saturated, adding an initiator, heating to 50-70 ℃, reacting for 2-5h, and filtering to obtain PP/PS microbeads;
s2, uniformly dispersing the PP/PS microbeads in tetrahydrofuran, swelling for 2-5h, adding monochlorodimethyl ether and a catalyst, reacting for 1-3h at 70-90 ℃, adding ethylene glycol for treating for 0.5-1h, and filtering to obtain porous microbeads;
s3, preparing graphene oxide by adopting a Hummers method;
s4, adding graphene oxide into deionized water, carrying out ultrasonic treatment for 0.5-1h to obtain uniform graphene oxide-water dispersion, adding tetrabutyl titanate in a dark place, carrying out violent stirring reaction for 1-2h, filtering, and repeatedly washing with deionized water to obtain graphene oxide/TiO2A nanocomposite;
s5, adding the porous microspheres into an aqueous solution containing 2.5-5 wt% of silane coupling agent, heating to 70-90 ℃, reacting for 0.5-1h, filtering to obtain surface modified microspheres, adding the surface modified microspheres into deionized water, and adding graphene oxide/TiO2Heating the nano compound and natamycin to 50-70 ℃, stirring and reacting for 1-3h, and filtering to obtain the antibacterial mildew preventive.
7. The long-acting antibacterial and mildewproof PP/PS plastic as claimed in claim 4 or 6, wherein the dispersing agent is one or a mixture of polyethylene glycol 200, polyethylene glycol 400, polyethylene wax and polyvinyl alcohol; the initiator is selected from one or a mixture of more of potassium persulfate, sodium persulfate, ammonium persulfate, benzoyl peroxide, lauroyl peroxide, cumene hydroperoxide, tert-butyl hydroperoxide, di-tert-butyl peroxide, dicumyl peroxide, tert-butyl peroxybenzoate, tert-butyl peroxypivalate, methyl ethyl ketone peroxide, cyclohexanone peroxide, diisopropyl peroxydicarbonate and dicyclohexyl peroxydicarbonate; the catalyst is selected from one or a mixture of more of anhydrous zinc chloride, stannic chloride, ferric trichloride and aluminum trichloride; the silane coupling agent is selected from one or a mixture of KH550, KH560, KH570, KH580, KH602 and KH 792.
8. The long-acting antibacterial and mildewproof PP/PS plastic as claimed in claim 4, wherein the mass ratio of the dispersant, the styrene, the propylene and the initiator is 1: (100) 200: 70-150: 0.5-0.7); the mass ratio of the PP/PS microbeads to the monochlorodimethyl ether to the catalyst to the ethylene glycol is 100: (35-55): (1-1.2): (5-10); the mass ratio of the graphene oxide to the silver nitrate to the glucose to the ammonia water is 10: (2-5): (5-12): (10-20); the mass ratio of the surface modified microbeads to the graphene oxide/silver nano composite to the natamycin is 100: (4-7): (5-10).
9. The long-acting antibacterial and mildewproof PP/PS plastic as claimed in claim 6, wherein the mass ratio of the dispersant, the styrene, the propylene and the initiator is 1: (100) 200: 70-150: 0.5-0.7); the mass ratio of the PP/PS microbeads to the monochlorodimethyl ether to the catalyst to the ethylene glycol is 100: (35-55): (1-1.2): (5-10); the mass ratio of the graphene oxide to the tetrabutyl titanate is 10: (2-5); the surface modified micro-bead and the graphene oxide/TiO2The mass ratio of the nano-composite to the natamycin is 100: (4-7): (5-10).
10. A method for preparing the long-acting antibacterial mildew-proof PP/PS plastic as claimed in any one of claims 1-9, comprising the following steps:
s1, adding PP master batches, PS master batches, an antibacterial mildew preventive, microcrystalline cellulose, a plasticizer, a toughening agent, an antioxidant and an ultraviolet absorbent into a double-screw extruder according to a ratio, and mixing and extruding;
s2, conveying the material extruded in the step S1 to a single-screw extruder for extrusion granulation, so as to obtain the long-acting antibacterial mildew-proof PP/PS plastic; the four temperature sections in the mixing and extruding process are as follows: the feeding section 110-.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011208827.3A CN112500651A (en) | 2020-11-03 | 2020-11-03 | Long-acting antibacterial mildew-proof PP/PS plastic and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011208827.3A CN112500651A (en) | 2020-11-03 | 2020-11-03 | Long-acting antibacterial mildew-proof PP/PS plastic and preparation method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112500651A true CN112500651A (en) | 2021-03-16 |
Family
ID=74955816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011208827.3A Pending CN112500651A (en) | 2020-11-03 | 2020-11-03 | Long-acting antibacterial mildew-proof PP/PS plastic and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112500651A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113942136A (en) * | 2021-08-30 | 2022-01-18 | 余姚市谐丰模塑有限公司 | Long-acting antibacterial mildew-proof PP/PS plastic and preparation method thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1294145A (en) * | 1999-11-02 | 2001-05-09 | 海尔科化工程塑料国家工程研究中心有限公司 | Resin composition containing antibacterial mildew inhibitor and its preparing process |
US20090093559A1 (en) * | 2007-10-08 | 2009-04-09 | E Tech Co., Ltd. | Absorbent and Antibacterial Polystyrene Paper (PSP) Sheet, Method for Producing Thereof and Tray Using the Same |
CN108690263A (en) * | 2017-04-12 | 2018-10-23 | 合肥杰事杰新材料股份有限公司 | A kind of antibacterial polyolefin and preparation method thereof |
CN109337280A (en) * | 2018-10-08 | 2019-02-15 | 南通鸿图健康科技有限公司 | Fitness equipment novel antibacterial ABS material and preparation method thereof |
CN111849119A (en) * | 2020-08-25 | 2020-10-30 | 广州珈鹏科技有限公司 | Antibacterial plastic particles and preparation method thereof |
-
2020
- 2020-11-03 CN CN202011208827.3A patent/CN112500651A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1294145A (en) * | 1999-11-02 | 2001-05-09 | 海尔科化工程塑料国家工程研究中心有限公司 | Resin composition containing antibacterial mildew inhibitor and its preparing process |
US20090093559A1 (en) * | 2007-10-08 | 2009-04-09 | E Tech Co., Ltd. | Absorbent and Antibacterial Polystyrene Paper (PSP) Sheet, Method for Producing Thereof and Tray Using the Same |
CN108690263A (en) * | 2017-04-12 | 2018-10-23 | 合肥杰事杰新材料股份有限公司 | A kind of antibacterial polyolefin and preparation method thereof |
CN109337280A (en) * | 2018-10-08 | 2019-02-15 | 南通鸿图健康科技有限公司 | Fitness equipment novel antibacterial ABS material and preparation method thereof |
CN111849119A (en) * | 2020-08-25 | 2020-10-30 | 广州珈鹏科技有限公司 | Antibacterial plastic particles and preparation method thereof |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113942136A (en) * | 2021-08-30 | 2022-01-18 | 余姚市谐丰模塑有限公司 | Long-acting antibacterial mildew-proof PP/PS plastic and preparation method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2978776B1 (en) | Antibacterial polymers and method for obtaining the same | |
CN110194889B (en) | Method for preparing modified thermoplastic plastic and product with microorganism adhesion resistance and composition for preparing modified thermoplastic plastic | |
US5698212A (en) | Antimicrobial polymer composition | |
CN108047530B (en) | Composite PE-PPR toughened pipe and preparation method thereof | |
CN111777827A (en) | Modified PVC material and preparation method thereof | |
CN111849119A (en) | Antibacterial plastic particles and preparation method thereof | |
CN112500651A (en) | Long-acting antibacterial mildew-proof PP/PS plastic and preparation method thereof | |
EP2670797A1 (en) | Peroxide blends for cross-linking ethylene vinyl acetate in an accelerated manner | |
CN112812368A (en) | Antibacterial flame-retardant material and application method thereof | |
CN109135054B (en) | Antibacterial flame-retardant polypropylene pipe and preparation method thereof | |
US5939087A (en) | Antimicrobial polymer composition | |
JPS62241932A (en) | Polymer foam having antibacterial and antifungal function and its production | |
CN108892851A (en) | A kind of low density polyethylene (LDPE) antibiotic plastic and preparation method | |
WO2003085051A1 (en) | Antibacterial glass composition, antibacterial resin composition and process for producing the same | |
CN103193939A (en) | Preparation method for polyolefin film with anti-bacterial function | |
CN112521712A (en) | Anti-yellowing antibacterial polyolefin material and water tank for water culture | |
KR102405859B1 (en) | Antibacterial film comprising metal nano powder and method for preparing thereof | |
CN108530655A (en) | A kind of antibacterial plastic concentrate and preparation method for antibiotic plastic | |
JP3309869B2 (en) | Antibacterial thermoplastic resin composition and antibacterial molded article | |
KR20130078364A (en) | Window profile | |
CN114044937A (en) | Nano-silver antibacterial agent, preparation method and application thereof | |
US20050089580A1 (en) | Antibacterial glass composition, antibacterial resin composition and method for producing the same | |
KR20100009277A (en) | Antibacterial resin composition for injection molding of natural ventilating device and antibacterial natural ventilating device using the composition | |
CN111892756A (en) | Master batch of antibacterial plastic product, preparation method of master batch and antibacterial garbage can | |
CN106995548A (en) | A kind of preparation method of multi-functional color masterbatch |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210316 |