CN107556684B - A kind of anti-aging plastic packaging bag and preparation method thereof - Google Patents
A kind of anti-aging plastic packaging bag and preparation method thereof Download PDFInfo
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- CN107556684B CN107556684B CN201710786214.XA CN201710786214A CN107556684B CN 107556684 B CN107556684 B CN 107556684B CN 201710786214 A CN201710786214 A CN 201710786214A CN 107556684 B CN107556684 B CN 107556684B
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- 239000004033 plastic Substances 0.000 title claims abstract description 70
- 229920003023 plastic Polymers 0.000 title claims abstract description 70
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 59
- 230000003712 anti-aging effect Effects 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims abstract description 50
- -1 polypropylene Polymers 0.000 claims abstract description 38
- 238000003756 stirring Methods 0.000 claims abstract description 34
- 239000004743 Polypropylene Substances 0.000 claims abstract description 32
- 229920001155 polypropylene Polymers 0.000 claims abstract description 32
- 229920001661 Chitosan Polymers 0.000 claims abstract description 30
- 229920002472 Starch Polymers 0.000 claims abstract description 28
- 230000032683 aging Effects 0.000 claims abstract description 28
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 239000008107 starch Substances 0.000 claims abstract description 28
- 235000019698 starch Nutrition 0.000 claims abstract description 28
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229960004889 salicylic acid Drugs 0.000 claims abstract description 25
- 238000013329 compounding Methods 0.000 claims abstract description 24
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 230000004048 modification Effects 0.000 claims abstract description 20
- 238000012986 modification Methods 0.000 claims abstract description 20
- 239000000945 filler Substances 0.000 claims abstract description 17
- 239000007822 coupling agent Substances 0.000 claims abstract description 16
- 239000004014 plasticizer Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000000049 pigment Substances 0.000 claims abstract description 13
- 229920000858 Cyclodextrin Polymers 0.000 claims abstract description 10
- 239000001116 FEMA 4028 Substances 0.000 claims abstract description 9
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 9
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 claims abstract description 9
- 235000011175 beta-cyclodextrine Nutrition 0.000 claims abstract description 9
- 229960004853 betadex Drugs 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 150000002825 nitriles Chemical class 0.000 claims abstract description 8
- 238000001228 spectrum Methods 0.000 claims abstract description 8
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 239000000839 emulsion Substances 0.000 claims description 9
- 229920001296 polysiloxane Polymers 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 235000019441 ethanol Nutrition 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000002077 nanosphere Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 claims description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 239000003999 initiator Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 239000012943 hotmelt Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 claims description 4
- 150000001298 alcohols Chemical class 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000004005 microsphere Substances 0.000 claims description 4
- 239000002073 nanorod Substances 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229960000583 acetic acid Drugs 0.000 claims description 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052794 bromium Inorganic materials 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 238000000975 co-precipitation Methods 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000032050 esterification Effects 0.000 claims description 3
- 238000005886 esterification reaction Methods 0.000 claims description 3
- 239000012362 glacial acetic acid Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000005457 ice water Substances 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 229920001353 Dextrin Polymers 0.000 claims description 2
- 239000004375 Dextrin Substances 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 claims description 2
- 239000012024 dehydrating agents Substances 0.000 claims description 2
- 235000019425 dextrin Nutrition 0.000 claims description 2
- UKODFQOELJFMII-UHFFFAOYSA-N pentamethyldiethylenetriamine Chemical compound CN(C)CCN(C)CCN(C)C UKODFQOELJFMII-UHFFFAOYSA-N 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 2
- 240000000203 Salix gracilistyla Species 0.000 claims 1
- DDFGTVSLZJLQEV-UHFFFAOYSA-N [C](C1CCCCC1)C1CCCCC1 Chemical compound [C](C1CCCCC1)C1CCCCC1 DDFGTVSLZJLQEV-UHFFFAOYSA-N 0.000 claims 1
- 235000016127 added sugars Nutrition 0.000 claims 1
- BULOCEWDRJUMEL-UHFFFAOYSA-N benzene formaldehyde Chemical compound C=O.C1=CC=CC=C1.C=O BULOCEWDRJUMEL-UHFFFAOYSA-N 0.000 claims 1
- 230000031709 bromination Effects 0.000 claims 1
- 238000005893 bromination reaction Methods 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 230000008859 change Effects 0.000 claims 1
- 239000008139 complexing agent Substances 0.000 claims 1
- 150000003949 imides Chemical class 0.000 claims 1
- 238000010526 radical polymerization reaction Methods 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 241000894006 Bacteria Species 0.000 abstract description 19
- 230000005855 radiation Effects 0.000 abstract description 5
- 238000005303 weighing Methods 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 50
- 239000011787 zinc oxide Substances 0.000 description 28
- 239000000725 suspension Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 9
- 241000589517 Pseudomonas aeruginosa Species 0.000 description 8
- 241000191967 Staphylococcus aureus Species 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical class COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 241000588724 Escherichia coli Species 0.000 description 4
- 241000219000 Populus Species 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 4
- 230000003115 biocidal effect Effects 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000001963 growth medium Substances 0.000 description 4
- 210000002429 large intestine Anatomy 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 229920006255 plastic film Polymers 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 4
- 229920002239 polyacrylonitrile Polymers 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 229910021589 Copper(I) bromide Inorganic materials 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- NKNDPYCGAZPOFS-UHFFFAOYSA-M copper(i) bromide Chemical compound Br[Cu] NKNDPYCGAZPOFS-UHFFFAOYSA-M 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 239000004611 light stabiliser Substances 0.000 description 2
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 description 2
- 239000011686 zinc sulphate Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- DNXHEGUUPJUMQT-CBZIJGRNSA-N Estrone Chemical compound OC1=CC=C2[C@H]3CC[C@](C)(C(CC4)=O)[C@@H]4[C@@H]3CCC2=C1 DNXHEGUUPJUMQT-CBZIJGRNSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229920001222 biopolymer Polymers 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical group O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
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- 150000003384 small molecules Chemical class 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
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- 239000011593 sulfur Substances 0.000 description 1
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- 231100000419 toxicity Toxicity 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
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- 239000011701 zinc Substances 0.000 description 1
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Landscapes
- Wrappers (AREA)
- Packages (AREA)
- Bag Frames (AREA)
Abstract
The present invention relates to packaging bag technical fields, more particularly to a kind of anti-aging plastic packaging bag and preparation method thereof, the raw material that plastic packaging bag uses includes 45~65 parts of maleic anhydride modified polypropylene, 20~32 parts of starch, 1.5~4.0 parts of ageing resistance compounding agent, 6~15 parts of plasticizer, 2~7 parts of salicylic acid modification of chitosan, 0.5~2 part of coupling agent, 0.3~1.0 part of defoaming agent, 2~5 parts of filler, 0~0.8 part of edible pigment, ageing resistance compounding agent is by the ultraviolet shielded nano-TiO of wide spectrum2/ ZnO is coated through 3-aminopropyltriethoxysilane, graft polypropylene nitrile, then is made by beta-cyclodextrin modified；Preparation method includes raw material weighing, starch gelatinization, stir mixing and Blown Film step.Preparation method simple process of the invention, easy to operate, the anti-aging plastics packaging bag prepared has the function of shielding ultraviolet radiation of more wide spectrum, has stronger anti-aging effect and stronger bacteria resistance.
Description
Technical field
The present invention relates to packaging bag technical fields, more particularly to a kind of anti-aging plastic packaging bag and preparation method thereof.
Background technique
Packaging bag is used to be packaged in the surface of product, one very light, protectiveness appearance is formed around product, to reach
To dust-proof, grease proofing, moisture-proof, waterproof, sun-proof purpose, effective protection is carried out to product.Plastic packaging bag is a kind of
Raw material are widely used in industrial production and daily life.Plastics belong to synthesis high molecular material, also referred to as giant molecule or
Macromolecule, plastics largely have the characteristics that it is light, and have it is stable be not in chemically corrosion phenomena, plastics usually have
There are preferable impact resistance, wearability and the transparency, plastics have excellent insulating properties, and have lower thermal conductivity.
Common plastic packaging bag is mostly polyethylene plastic film or polypropylene plastic film, odorless nontoxic.But whether being
Polyethylene plastic film or polypropylene plastic film may all occur in each stage of its synthesis, processing, storage and final application
Rotten, a series of variations occur for the chemical composition and structure of material, i.e. material property degenerates, such as under yellowing, relative molecular weight
Drop, product surface cracking, gloss are lost, and impact strength, flexural strength, tensile strength and elongation etc. are more seriously caused
Mechanical property declines to a great extent, to influence the normal use of film, this phenomenon is referred to as aging.
It is seen in angle chemically, the either natural still synthesis of plastic material, all there is certain molecular structure,
Some of them position has some weak bonds, these weak bonds become the breach of chemical reaction naturally, and the essence of ageing of plastics is just
It is a kind of chemical reaction, i.e., is chemically reacted with weak bond, such as oxidation reaction is starting point and causes series of chemical, it
It can be caused by many reasons, such as heat, ultraviolet light, mechanical stress, high-energy radiation, electric field, microorganism, it can be individually a kind of
Factor, can also be with many factors collective effect, as a result, the molecular structure of high molecular material changes and average molecular matter
Amount decline generates crosslinking, so that material property degenerates, so that be not available.Wherein, ultraviolet light and heat is common cause aging
Factor, under the action of ultraviolet light and heat, hydroxyl or double bond in macromolecular chain structure are easy to happen degradation under the action of light
Reaction, saturated hydrocarbons high molecular polymer resolve into hydroxyl, hydrogen peroxide or double bond during use, photostability compared with
Difference.Currently, be usually in the process of material, be added light stabilizer, such as amine polyphenoils, phenols polyphenoils,
Organic compounds containing sulfur, to avoid the degradation with aging of material, still, these light stabilizers have certain toxicity mostly, to people
Body is harmful.Therefore, in order to enable plastic packaging bag muchly to protect product, need one kind effectively anti-aging and nontoxic
Plastic packaging bag.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of anti-aging plastic packaging bag and preparation method thereof, the preparation
Method and process is simple, easy to operate, and the anti-aging plastics packaging bag prepared has the function of shielding ultraviolet radiation of more wide spectrum, tool
There are stronger anti-aging effect and stronger bacteria resistance.
The present invention solves above-mentioned technical problem by following technological means:
A kind of anti-aging plastic packaging bag, the raw material components including following parts by weight:
45~65 parts of maleic anhydride modified polypropylene, 20~32 parts of starch, 1.5~4.0 parts of ageing resistance compounding agent, plasticizer
6~15 parts, 2~7 parts of salicylic acid modification of chitosan, 0.5~2 part of coupling agent, 0.3~1.0 part of defoaming agent, 2~5 parts of filler, food
With 0~0.8 part of pigment.
The ageing resistance compounding agent is by the ultraviolet shielded nano-TiO of wide spectrum2/ ZnO is through 3-aminopropyltriethoxysilane
Cladding, graft polypropylene nitrile, then be made by beta-cyclodextrin modified.
Titanium dioxide and zinc oxide all have good ultraviolet screener performance, and the ultraviolet screening ability of titanium dioxide exists
Medium wave band is better than nano zine oxide, and nano zine oxide is better than titanium dioxide in the ultraviolet screening ability of long-wave band, and the two combines,
It is capable of providing the function of shielding ultraviolet radiation of more wide spectrum, there is stronger anti-aging effect.By nano-titanium dioxide and zinc oxide
It is combined with each other, and carries out coating modification with 3-aminopropyltriethoxysilane, in order to be able to success graft polypropylene nitrile,
Using the compound obtained after beta-cyclodextrin modified, the anti-aging property and flexility of plastic packaging bag, β-can be improved
It is cyclodextrin modified mainly to play two, first is that protection polyacrylonitrile, stablizes its function, second is that making titanium dioxide and oxygen
The ultraviolet-shielding type for changing zinc can be more longlasting long-acting.Chitosan is a kind of native biopolymer, and structure is more special to be contained
There are free amine group and hydroxyl, these groups have good chemical reaction characteristic, and property is made it have, is mainly reflected in:
First is that the chitosan of macromolecular is adsorbed on microbial cell surface, one layer of polymeric membrane is formed, prevents nutriment to cell
Interior transport, to play sterilization and bacteriostasis effect；It is and intracellular negatively charged second is that small molecule chitosan enters in microbial cell
Substance combine, so that the normal physiological function of cell is affected, cause microorganism dead.Through the modified chitosan of salicylic acid
Multiple antibacterial activity centers are formd, antibacterial action is stronger.
Further, the nano-TiO2/ ZnO is with rutile TiO2Nanosphere is core, and ZnO nanorod is the porous micro- of shell
Spherical structure.
Further, the nano-TiO2/ ZnO is with (NH4)2CO3For precipitating reagent, using coprecipitation in rutile TiO2
Nanometer ball surface coats ZnO, calcines the porous microsphere that average grain diameter obtained is 100nm.
Further, the TiO2Nanosphere is made using solvent-thermal method, the nano-TiO2TiO in/ZnO2Quality be
1~1.3 times of ZnO.
Further, the coupling agent is titanate coupling agent, and the defoaming agent is silicone emulsion or high-carbon alcohol fatty acid ester
One of compound, the filler are nanometer calcium carbonate.
The invention also discloses the preparation methods of above-mentioned anti-aging plastic packaging bag, and steps are as follows:
S1. raw material is weighed, and weighs each raw material of corresponding parts by weight respectively.
S2. heating stirring in high-speed mixer is added in starch gelatinization, starch and water 1:100 in mass ratio, makes starch gelatinization.
S3. maleic anhydride modified polypropylene, plasticizer, coupling agent, Yu Wendu are added into high-speed mixer for stir mixing
105 DEG C, revolving speed 200r/min 20~30min of stirring, then raise temperature to 120 DEG C, and the modified shell of ageing resistance compounding agent, salicylic acid is added
Glycan, defoaming agent, filler and edible pigment, revolving speed keep 350r/min to stir 20~30min, obtain mixture.
S4. Blown Film produces mixture into single screw extrusion machine, 165~175 DEG C of progress heat of control processing temperature
Molten extrusion-blown modling film forming, subsequent bag making are cut, and heat-sealing is printed to get plastic packaging bag is arrived.
The maleic anhydride modified polypropylene is on polypropylene using pre-irradiation grafting method grafted maleic anhydride.
Further, the ageing resistance compounding agent is by nano-TiO2/ ZnO is coated through 3-aminopropyltriethoxysilane, is obtained
To TiO2/ ZnO-APTES is added in dichloromethane solvent, and 2- bromine isobutyl acylbromide is added and reacts to obtain initiator, and initiator is logical
The catalyst system for crossing pentamethyl-diethylenetriamine and cuprous bromide composition, in nano-TiO2It is free that the surface /ZnO carries out atom transfer
Base polymerization reaction graft polypropylene nitrile, obtains TiO2/ ZnO-PAN is most modified through beta-cyclodextrin room temperature ultrasonic wave afterwards, dry system
?.
Further, the ultrasound parameter of the beta-cyclodextrin ultrasonic wave modification is 22~25kHz of frequency, power 180W, time
10~20min.
Further, the salicylic acid modification of chitosan is to be esterified using Dicyclohexylcarbodiimide as dehydrating agent using condensation
Method carries out esterification modification to chitosan with salicylic acid and is made.
Further, the salicylic acid modification of chitosan prepare it is as follows: being dissolved in mass concentration with chitosan is 1.5%
In glacial acetic acid solution, it is slowly dropped into benzaldehyde, for 24 hours in stirring at normal temperature reaction, refrigerated centrifuge, it is heavy to be washed with ethyl alcohol and deionized water
Starch after vacuum drying, is dissolved in petroleum ether, and salicylic acid and 4-dimethylaminopyridine is added, and stirs under the conditions of ice-water bath anti-
10min is answered, Dicyclohexylcarbodiimide is added, is filtered after reacting 3h, filter residue is washed with water for several times, and volume fraction is added after dry
To stir in 2% hydrochloric acid solution, filtering after immersion, it is dried to obtain salicylic acid modification of chitosan.
The raw material for preparing of plastic packaging bag of the invention has used ageing resistance compounding agent, contains in the ageing resistance compounding agent and receives
Rice TiO2/ ZnO is capable of providing the function of shielding ultraviolet radiation of more wide spectrum, and after graft polypropylene nitrile, further improves plastics
The anti-aging property and flexility of packaging bag keep its performance more stable persistently after beta-cyclodextrin modified；Prepare raw material also
The modified chitosan of salicylic acid is used, the antibacterial activity center through the modified chitosan of salicylic acid is increased, and is had stronger
Antibacterial and bacteriostasis, avoid bacterium from causing erosion damage to plastic packaging bag, plastic packaging bag improved in terms of microorganism
Anti-aging property.
The preparation method simple process of anti-aging plastic packaging bag of the invention, easy to operate, the equipment cost used
It is lower.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in detail:
The anti-aging plastic packaging bag of one kind of the invention, the raw material components including following parts by weight: maleic anhydride modified
45~65 parts of polypropylene, 20~32 parts of starch, 1.5~4.0 parts of ageing resistance compounding agent, 6~15 parts of plasticizer, the modified shell of salicylic acid
2~7 parts of glycan, 0.5~2 part of coupling agent, 0.3~1.0 part of defoaming agent, 2~5 parts of filler, 0~0.8 part of edible pigment.It is therein
Maleic anhydride modified polypropylene is to be made using pre-irradiated method using polypropylene, maleic acid and acetone as main raw material(s), that is, take horse
Carry out acid anhydrides to be dissolved in acetone soln, prepare and obtain the solution that maleic anhydride mass concentration is 5%, is added and passes through high-power electron beam
Irradiated polypropylene carries out ultrasonic wave mixing 45min, reacts 5h under conditions of 95 DEG C, reaction product is dried to obtain
Maleic anhydride modified polypropylene, and the grafting rate for measuring its maleic anhydride is 0.52%.
The coupling agent that the present invention uses is titanate coupling agent, and defoaming agent is that silicone emulsion or higher alcohols are fatty acid ester compounded
One of object, filler are nanometer calcium carbonate.Ageing resistance compounding agent is by the ultraviolet shielded nano-TiO of wide spectrum2/ ZnO is through 3- amino
Propyl-triethoxysilicane cladding, graft polypropylene nitrile, then be made by beta-cyclodextrin modified, nano-TiO2/ ZnO is with rutile
TiO2Nanosphere is core, and ZnO nanorod is the porous microsphere structure of shell, the nano-TiO2/ ZnO is with (NH4)2CO3For precipitating reagent,
Using coprecipitation in rutile TiO2Nanometer ball surface coats ZnO, and calcining average grain diameter obtained is the porous micro- of 100nm
Ball.The nano-TiO that the present invention uses2/ ZnO's the preparation method is as follows:
Embodiment one: nano-TiO2The preparation of/ZnO
The nano-TiO of the present embodiment2TiO used in the preparation of/ZnO2Nanosphere is made using solvent-thermal method, by TiO2
Nanosphere is added in deionized water, and ultrasonic wave disperses to be made into the solution of 1.5mol/L, adds and TiO2Equimolar amounts
ZnSO4·7H2O, stirring make its ZnSO4·7H2O dissolution, finally stirring instills the (NH of 1.5mol/L4)2CO3Solution makes its pH
Value is maintained at 7 or so, after titration, solution is gone in the stainless steel high pressure water heating kettle for being equipped with polytetrafluoroethyllining lining,
In 120 DEG C of insulation reaction 1h, cooled to room temperature pours out reaction product, after being centrifuged, washing, after 85 DEG C of dry 12h,
It being transferred in Muffle furnace, under air atmosphere, is warming up to 450 DEG C with the speed of 5 DEG C/min, calcines 1.5h, taking-up is cooled to room temperature,
Obtain nano-TiO2/ZnO.The nano-TiO that passage capacity characterization discovery is prepared2The centre of/ZnO is TiO2Ball, TiO2Ball
The outside of core is that the porous shell being self-assembly of by ZnO nanorod measures preparation to form porous microballoon core-shell structure
Nano-TiO out2The average grain diameter of/ZnO is distributed within the scope of 60~120nm in 100nm, majority, and measures receiving of preparing
Rice TiO2TiO in/ZnO2Quality be 1~1.3 times of ZnO.
The nano-TiO being prepared using embodiment one2/ ZnO is used to prepare ageing resistance compounding agent, and preparation method is such as
Under:
Embodiment two: the preparation of ageing resistance compounding agent
Take nano-TiO2/ ZnO and toluene are mixed by quality 1:25, and carry out ultrasonic wave dispersion 20min, are then added 4 times
TiO2The 3-aminopropyltriethoxysilane of quality, in 85 DEG C of progress return stirring mixing 6h, centrifuge separation, and with toluene into
Row centrifuge washing, the TiO being dried to obtain2/ ZnO-APTES is added in dichloromethane solvent, and ice bath stirring is added triethylamine and promotes
Compatibility, then be slowly dropped into 2- bromine isobutyl acylbromide and be stirred to react 20h, stands 5h, and centrifugal drying obtains initiator, by initiator,
Methyl phenyl ethers anisole and cuprous bromide 1:10:1 in mass ratio are mixed, and under the protective effect of nitrogen, pentamethyl divinyl is added
Triamine and acrylonitrile react 5h in 80 DEG C of reflux condensation modes, and the product after reaction is diluted with methyl phenyl ethers anisole, precipitated in methyl alcohol, is used in combination
The aqueous acetone solution centrifuge washing that volumetric concentration is 75%, is dried to obtain TiO2/ ZnO-PAN, by TiO2β-ring is added in/ZnO-PAN
Ultrasonic wave is carried out in dextrin in aqueous solution and modifies 100min, and ultrasound parameter is 22~25kHz of frequency, power 180W, and centrifugal drying obtains
To ageing resistance compounding agent.
Embodiment three: the preparation of salicylic acid modification of chitosan
20g chitosan is dissolved in the glacial acetic acid solution that every mass per liter concentration is 1.5%, is slowly dropped into 60mL benzaldehyde, often
Temperature is stirred to react for 24 hours, refrigerated centrifuge, with ethyl alcohol and deionized water washing sediment, after vacuum drying, is dissolved in petroleum ether, is added
Enter 70g salicylic acid and 4-dimethylaminopyridine, after being stirred to react 5h under the conditions of ice-water bath, 70g Dicyclohexylcarbodiimide is added
It being filtered after reacting 2h, filter residue is washed with water for several times, and it is dry, it is added in the hydrochloric acid solution that volume fraction is 2% and is taken out after stirring, immersion
Filter obtains salicylic acid modification of chitosan.
Example IV: the preparation of plastic packaging bag
The preparation method of the anti-aging plastic packaging bag of one kind of the present embodiment, comprising the following steps:
S1. raw material is weighed, and weighs each raw material of corresponding weight by following parts by weight respectively:
45 parts of maleic anhydride modified polypropylene, 32 parts of starch, 4.0 parts of ageing resistance compounding agent, 6 parts of plasticizer, salicylic acid changes
2 parts of chitosan, 0.5 part of coupling agent, 0.3 part of silicone emulsion, 2 parts of filler, 0 part of edible pigment of property.
Load weighted starch and water 1:100 in mass ratio are added in high-speed mixer and are heated with stirring to by S2. starch gelatinization
90 DEG C, make starch gelatinization in pulpous state.
S3. load weighted maleic anhydride modified polypropylene, plasticizer, coupling are added into high-speed mixer for stir mixing
Agent, 105 DEG C of Yu Wendu, revolving speed 200r/min stir 20~30min, then raise temperature to 120 DEG C, and ageing resistance compounding agent, water is added
Poplar acid modification of chitosan, silicone emulsion, filler and edible pigment, revolving speed keep 350r/min to stir 20~30min, are mixed
Material.
S4. Blown Film produces mixture into single screw extrusion machine, and 165 DEG C of processing temperature of control carries out hot melt and squeezes
Blown Film out, subsequent bag making are cut, heat-sealing, are printed to get plastic packaging bag is arrived.
Performance detection is carried out to the plastic packaging bag that the present embodiment is prepared, bacteriostasis property measurement is carried out, by large intestine bar
Bacterium, staphylococcus aureus and Pseudomonas aeruginosa are inoculated into respectively in corresponding culture medium, are activated 12h at 35 DEG C, 200rpm, are taken
Plastics package bag webs 5 of 1 × 1cm are put into 50mL bacteria suspension, and not plus the original bacteria suspension of plastics package bag webs is as control
All bacteria suspensions are placed in 35 DEG C, 200rpm culture 5h, investigate biocidal property, measure plastic packaging bag manufactured in the present embodiment by group
Bacteriostasis rate to Escherichia coli is 86%, and the bacteriostasis rate to staphylococcus aureus is 79%, and the bacteriostasis rate to Pseudomonas aeruginosa is
83%；The anti-aging property for the plastic packaging bag that detection the present embodiment is prepared, places 260 in 150 DEG C of environment for it
It, does not generate rotten, and thermo oxidative stability reaches 150 days or more in water, and photostability reaches 190 days or more, has stronger
Anti-aging property.
Embodiment five: the preparation of plastic packaging bag
The preparation method of the anti-aging plastic packaging bag of one kind of the present embodiment, comprising the following steps:
S1. raw material is weighed, and weighs each raw material of corresponding weight by following parts by weight respectively:
65 parts of maleic anhydride modified polypropylene, 20 parts of starch, 1.5 parts of ageing resistance compounding agent, 15 parts of plasticizer, salicylic acid changes
7 parts of chitosan of property, 2 parts of coupling agent, 1 part of the fatty acid ester compounded object of higher alcohols, 5 parts of filler, 0.8 part of edible pigment.
Load weighted starch and water 1:100 in mass ratio are added in high-speed mixer and are heated with stirring to by S2. starch gelatinization
90 DEG C, make starch gelatinization in pulpous state.
S3. load weighted maleic anhydride modified polypropylene, plasticizer, coupling are added into high-speed mixer for stir mixing
Agent, 105 DEG C of Yu Wendu, revolving speed 200r/min stir 20~30min, then raise temperature to 120 DEG C, and ageing resistance compounding agent, water is added
Poplar acid modification of chitosan, the fatty acid ester compounded object of higher alcohols, filler and edible pigment, revolving speed holding 350r/min stirring 20~
30min obtains mixture.
S4. Blown Film produces mixture into single screw extrusion machine, and 175 DEG C of processing temperature of control carries out hot melt and squeezes
Blown Film out, subsequent bag making are cut, heat-sealing, are printed to get plastic packaging bag is arrived.
Performance detection is carried out to the plastic packaging bag that the present embodiment is prepared, bacteriostasis property measurement is carried out, by large intestine bar
Bacterium, staphylococcus aureus and Pseudomonas aeruginosa are inoculated into respectively in corresponding culture medium, are activated 12h at 35 DEG C, 200rpm, are taken
Plastics package bag webs 5 of 1 × 1cm are put into 50mL bacteria suspension, and not plus the original bacteria suspension of plastics package bag webs is as control
All bacteria suspensions are placed in 35 DEG C, 200rpm culture 5h, investigate biocidal property, measure plastic packaging bag manufactured in the present embodiment by group
Bacteriostasis rate to Escherichia coli is 88%, and the bacteriostasis rate to staphylococcus aureus is 75%, and the bacteriostasis rate to Pseudomonas aeruginosa is
79%；The anti-aging property for the plastic packaging bag that detection the present embodiment is prepared, places 285 in 150 DEG C of environment for it
It, does not generate rotten, and thermo oxidative stability reaches 163 days or more in water, and photostability reaches 195 days or more, has stronger
Anti-aging property.
Embodiment six: the preparation of plastic packaging bag
The preparation method of the anti-aging plastic packaging bag of one kind of the present embodiment, comprising the following steps:
S1. raw material is weighed, and weighs each raw material of corresponding weight by following parts by weight respectively:
50 parts of maleic anhydride modified polypropylene, 25 parts of starch, 2.0 parts of ageing resistance compounding agent, 10 parts of plasticizer, salicylic acid changes
4 parts of chitosan, 1.5 parts of coupling agent, 0.5 part of silicone emulsion, 3 parts of filler, 0.2 part of edible pigment of property.
Load weighted starch and water 1:100 in mass ratio are added in high-speed mixer and are heated with stirring to by S2. starch gelatinization
90 DEG C, make starch gelatinization in pulpous state.
S3. load weighted maleic anhydride modified polypropylene, plasticizer, coupling are added into high-speed mixer for stir mixing
Agent, 105 DEG C of Yu Wendu, revolving speed 200r/min stir 20~30min, then raise temperature to 120 DEG C, and ageing resistance compounding agent, water is added
Poplar acid modification of chitosan, silicone emulsion, filler and edible pigment, revolving speed keep 350r/min to stir 20~30min, are mixed
Material.
S4. Blown Film produces mixture into single screw extrusion machine, and 170 DEG C of processing temperature of control carries out hot melt and squeezes
Blown Film out, subsequent bag making are cut, heat-sealing, are printed to get plastic packaging bag is arrived.
Performance detection is carried out to the plastic packaging bag that the present embodiment is prepared, bacteriostasis property measurement is carried out, by large intestine bar
Bacterium, staphylococcus aureus and Pseudomonas aeruginosa are inoculated into respectively in corresponding culture medium, are activated 12h at 35 DEG C, 200rpm, are taken
Plastics package bag webs 5 of 1 × 1cm are put into 50mL bacteria suspension, and not plus the original bacteria suspension of plastics package bag webs is as control
All bacteria suspensions are placed in 35 DEG C, 200rpm culture 5h, investigate biocidal property, measure plastic packaging bag manufactured in the present embodiment by group
Bacteriostasis rate to Escherichia coli is 88%, and the bacteriostasis rate to staphylococcus aureus is 81%, and the bacteriostasis rate to Pseudomonas aeruginosa is
83%；The anti-aging property for the plastic packaging bag that detection the present embodiment is prepared, places 290 in 150 DEG C of environment for it
It, does not generate rotten, and thermo oxidative stability reaches 175 days or more in water, and photostability reaches 201 days or more, has stronger
Anti-aging property.
Embodiment seven: the preparation of plastic packaging bag
The preparation method of the anti-aging plastic packaging bag of one kind of the present embodiment, comprising the following steps:
S1. raw material is weighed, and weighs each raw material of corresponding weight by following parts by weight respectively:
50 parts of maleic anhydride modified polypropylene, 25 parts of starch, 3.0 parts of ageing resistance compounding agent, 10 parts of plasticizer, salicylic acid changes
6 parts of chitosan, 1.5 parts of coupling agent, 0.5 part of silicone emulsion, 3 parts of filler, 0.3 part of edible pigment of property.
Load weighted starch and water 1:100 in mass ratio are added in high-speed mixer and are heated with stirring to by S2. starch gelatinization
90 DEG C, make starch gelatinization in pulpous state.
S3. load weighted maleic anhydride modified polypropylene, plasticizer, coupling are added into high-speed mixer for stir mixing
Agent, 105 DEG C of Yu Wendu, revolving speed 200r/min stir 20~30min, then raise temperature to 120 DEG C, and ageing resistance compounding agent, water is added
Poplar acid modification of chitosan, silicone emulsion, filler and edible pigment, revolving speed keep 350r/min to stir 20~30min, are mixed
Material.
S4. Blown Film produces mixture into single screw extrusion machine, and 170 DEG C of processing temperature of control carries out hot melt and squeezes
Blown Film out, subsequent bag making are cut, heat-sealing, are printed to get plastic packaging bag is arrived.
Performance detection is carried out to the plastic packaging bag that the present embodiment is prepared, bacteriostasis property measurement is carried out, by large intestine bar
Bacterium, staphylococcus aureus and Pseudomonas aeruginosa are inoculated into respectively in corresponding culture medium, are activated 12h at 35 DEG C, 200rpm, are taken
Plastics package bag webs 5 of 1 × 1cm are put into 50mL bacteria suspension, and not plus the original bacteria suspension of plastics package bag webs is as control
All bacteria suspensions are placed in 35 DEG C, 200rpm culture 5h, investigate biocidal property, measure plastic packaging bag manufactured in the present embodiment by group
Bacteriostasis rate to Escherichia coli is 95%, and the bacteriostasis rate to staphylococcus aureus is 88%, and the bacteriostasis rate to Pseudomonas aeruginosa is
87%；The anti-aging property for the plastic packaging bag that detection the present embodiment is prepared, places 300 in 150 DEG C of environment for it
It, does not generate rotten, and thermo oxidative stability reaches 200 days or more in water, and photostability reaches 213 days or more, has stronger
Anti-aging property.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferred embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, it can modify to technical solution of the present invention
Or equivalent replacement should all cover without departing from the objective and range of technical solution of the present invention in claim of the invention
In range.Technology not described in detail in the present invention, shape, construction portion are well-known technique.
Claims (9)
1. a kind of anti-aging plastic packaging bag, which is characterized in that the raw material components including following parts by weight:
45~65 parts of maleic anhydride modified polypropylene, 20~32 parts of starch, 1.5~4.0 parts of ageing resistance compounding agent, plasticizer 6~
15 parts, 2~7 parts of salicylic acid modification of chitosan, 0.5~2 part of coupling agent, 0.3~1.0 part of defoaming agent, 2~5 parts of filler, eat color
0~0.8 part of element；
The ageing resistance compounding agent is by the ultraviolet shielded nano-TiO of wide spectrum2/ ZnO is coated through 3-aminopropyltriethoxysilane,
Graft polypropylene nitrile, then be made by beta-cyclodextrin modified；
The salicylic acid modification of chitosan is to utilize condensation esterification process salicylic acid pair using Dicyclohexylcarbodiimide as dehydrating agent
Chitosan carries out esterification modification and is made.
2. the anti-aging plastic packaging bag of one kind according to claim 1, which is characterized in that the nano-TiO2/ ZnO is
With rutile TiO2Nanosphere is core, and ZnO nanorod is the porous microsphere structure of shell.
3. the anti-aging plastic packaging bag of one kind according to claim 2, which is characterized in that the nano-TiO2/ ZnO is
With (NH4)2CO3For precipitating reagent, using coprecipitation in rutile TiO2Nanometer ball surface coats ZnO, calcines obtained average
Partial size is the porous microsphere of 80~150nm.
4. the anti-aging plastic packaging bag of one kind according to claim 3, which is characterized in that the TiO2Nanosphere uses
Solvent-thermal method is made, the nano-TiO2TiO in/ZnO2Quality be 1~1.3 times of ZnO.
5. the anti-aging plastic packaging bag of one kind according to claim 4, which is characterized in that the coupling agent is titanate esters
Coupling agent, the defoaming agent are one of silicone emulsion or the fatty acid ester compounded object of higher alcohols, and the filler is nano-calcium carbonate
Calcium.
6. the preparation method of the anti-aging plastic packaging bag of any described one kind according to claim 1~5, which is characterized in that
Steps are as follows:
S1. raw material is weighed, and weighs each raw material of corresponding parts by weight respectively；
S2. heating stirring in high-speed mixer is added in starch gelatinization, starch and water 1:100 in mass ratio, makes starch gelatinization；
S3. maleic anhydride modified polypropylene, plasticizer, coupling agent, Yu Wendu 105 are added into high-speed mixer for stir mixing
DEG C, revolving speed 200r/min stir 20~30min, then raise temperature to 120 DEG C, it is poly- that the modified shell of ageing resistance compounding agent, salicylic acid be added
Sugar, defoaming agent, filler and edible pigment, revolving speed keep 350r/min to stir 20~30min, obtain mixture；
S4. Blown Film produces mixture into single screw extrusion machine, and 165~175 DEG C of processing temperature of control carries out hot melt and squeezes
Blown Film out, subsequent bag making are cut, heat-sealing, are printed to get plastic packaging bag is arrived；
The maleic anhydride modified polypropylene is on polypropylene using pre-irradiation grafting method grafted maleic anhydride.
7. the preparation method of the anti-aging plastic packaging bag of one kind according to claim 6, which is characterized in that described anti-ageing
Change complexing agent by nano-TiO2/ ZnO is coated through 3-aminopropyltriethoxysilane, obtains TiO2Dichloro is added in/ZnO-APTES
In methane solvent, and 2- bromine isobutyl acylbromide is added and reacts to obtain initiator, initiator passes through pentamethyl-diethylenetriamine and bromination
The catalyst system of cuprous composition, in nano-TiO2The surface /ZnO carries out atom transition free radical polymerization reaction graft polypropylene nitrile,
Obtain TiO2/ ZnO-PAN is most modified through beta-cyclodextrin room temperature ultrasonic wave afterwards, dry to be made.
8. the preparation method of the anti-aging plastic packaging bag of one kind according to claim 7, which is characterized in that the β-ring
The ultrasound parameter of dextrin ultrasonic wave modification is 22~25kHz of frequency, power 180W, time 100min.
9. the preparation method of the anti-aging plastic packaging bag of one kind according to claim 8, which is characterized in that the bigcatkin willow
Preparing for sour modification of chitosan is as follows: is dissolved in the glacial acetic acid solution that mass concentration is 1.5% with chitosan, is slowly dropped into benzene
Formaldehyde, for 24 hours in stirring at normal temperature reaction, refrigerated centrifuge after vacuum drying, is dissolved in stone with ethyl alcohol and deionized water washing sediment
In oily ether, and salicylic acid and 4-dimethylaminopyridine is added, 10min is stirred to react under the conditions of ice-water bath, dicyclohexyl carbon is added
Acid imide filters after reacting 3h, and filter residue is washed with water for several times, stirred in the hydrochloric acid solution that addition volume fraction is 2% after drying,
It is filtered after immersion, is dried to obtain salicylic acid modification of chitosan.
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| CN110669358B (en) * | 2019-10-11 | 2021-08-24 | 攀钢集团重庆钛业有限公司 | Titanium dioxide for plastics and ink and preparation method thereof |
| CN113308045B (en) * | 2021-05-28 | 2022-03-22 | 宁波市鑫晟工贸实业有限公司 | Anti-aging plastic box and preparation method thereof |
| CN113265723B (en) * | 2021-06-24 | 2023-02-10 | 晋江市飞顺郎鞋业有限公司 | High-strength anti-aging composite fiber for fly-knitted mesh fabric and preparation method thereof |
| CN113512250B (en) * | 2021-07-15 | 2022-07-08 | 常丰线缆有限公司 | Photovoltaic cable |
| CN113683816B (en) * | 2021-08-26 | 2022-12-16 | 安徽理工大学环境友好材料与职业健康研究院(芜湖) | High-dispersity ultraviolet shielding agent and preparation method and application thereof |
| CN116987313B (en) * | 2023-07-31 | 2024-02-13 | 江苏劲松塑料科技有限公司 | Environment-friendly food packaging bag and preparation method thereof |
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Denomination of invention: An anti-aging plastic packaging bag and its preparation method Effective date of registration: 20231022 Granted publication date: 20190621 Pledgee: Wenzhou Longgang sub branch of Zheshang Bank Co.,Ltd. Pledgor: CHENGDE TECHNOLOGY Co.,Ltd. Registration number: Y2023330002399 |