CN116285165A - Ageing-resistant packaging film and preparation method thereof - Google Patents
Ageing-resistant packaging film and preparation method thereof Download PDFInfo
- Publication number
- CN116285165A CN116285165A CN202310572562.2A CN202310572562A CN116285165A CN 116285165 A CN116285165 A CN 116285165A CN 202310572562 A CN202310572562 A CN 202310572562A CN 116285165 A CN116285165 A CN 116285165A
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- China
- Prior art keywords
- aging
- packaging film
- parts
- preparation
- resistant packaging
- 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.)
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- 239000012785 packaging film Substances 0.000 title claims abstract description 90
- 229920006280 packaging film Polymers 0.000 title claims abstract description 90
- 230000032683 aging Effects 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title claims abstract description 43
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000003756 stirring Methods 0.000 claims abstract description 55
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 44
- 229910021485 fumed silica Inorganic materials 0.000 claims abstract description 39
- 239000006084 composite stabilizer Substances 0.000 claims abstract description 34
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 33
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000945 filler Substances 0.000 claims abstract description 29
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 27
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 27
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract description 24
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 238000004108 freeze drying Methods 0.000 claims abstract description 15
- 239000007864 aqueous solution Substances 0.000 claims abstract description 12
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract description 12
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims abstract description 11
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 11
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004709 Chlorinated polyethylene Substances 0.000 claims abstract 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 abstract description 6
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 6
- 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 abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000008117 stearic acid Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 40
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 30
- 230000003712 anti-aging effect Effects 0.000 claims description 23
- 239000002245 particle Substances 0.000 claims description 21
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 20
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 15
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 15
- DBOSBRHMHBENLP-UHFFFAOYSA-N 4-tert-Butylphenyl Salicylate Chemical compound C1=CC(C(C)(C)C)=CC=C1OC(=O)C1=CC=CC=C1O DBOSBRHMHBENLP-UHFFFAOYSA-N 0.000 claims description 13
- ZBBLRPRYYSJUCZ-GRHBHMESSA-L (z)-but-2-enedioate;dibutyltin(2+) Chemical compound [O-]C(=O)\C=C/C([O-])=O.CCCC[Sn+2]CCCC ZBBLRPRYYSJUCZ-GRHBHMESSA-L 0.000 claims description 12
- 235000012424 soybean oil Nutrition 0.000 claims description 12
- 239000003549 soybean oil Substances 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000012295 chemical reaction liquid Substances 0.000 claims description 10
- AHUXYBVKTIBBJW-UHFFFAOYSA-N dimethoxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](OC)(OC)C1=CC=CC=C1 AHUXYBVKTIBBJW-UHFFFAOYSA-N 0.000 claims description 10
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 9
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 abstract description 17
- 238000001556 precipitation Methods 0.000 abstract description 15
- 241000251468 Actinopterygii Species 0.000 abstract description 10
- 238000000465 moulding Methods 0.000 abstract description 6
- 230000000052 comparative effect Effects 0.000 description 10
- -1 polyethylene Polymers 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000005022 packaging material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009396 hybridization Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 125000004434 sulfur atom Chemical group 0.000 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 description 1
- RFVNOJDQRGSOEL-UHFFFAOYSA-N 2-hydroxyethyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCO RFVNOJDQRGSOEL-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000858 Cyclodextrin Polymers 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920000168 Microcrystalline cellulose Polymers 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000001728 carbonyl compounds Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 229940100242 glycol stearate Drugs 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000008040 ionic compounds Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- DZBOAIYHPIPCBP-UHFFFAOYSA-L magnesium;2-methylprop-2-enoate Chemical compound [Mg+2].CC(=C)C([O-])=O.CC(=C)C([O-])=O DZBOAIYHPIPCBP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 235000019813 microcrystalline cellulose Nutrition 0.000 description 1
- 239000008108 microcrystalline cellulose Substances 0.000 description 1
- 229940016286 microcrystalline cellulose Drugs 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 150000008301 phosphite esters Chemical group 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound 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
- 239000013049 sediment Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000012745 toughening agent Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- 229940124543 ultraviolet light absorber Drugs 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- PIMBTRGLTHJJRV-UHFFFAOYSA-L zinc;2-methylprop-2-enoate Chemical compound [Zn+2].CC(=C)C([O-])=O.CC(=C)C([O-])=O PIMBTRGLTHJJRV-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
- C08J2423/28—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
-
- 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
- C08K3/16—Halogen-containing compounds
- C08K2003/166—Magnesium halide, e.g. magnesium chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/56—Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
- C08K5/57—Organo-tin compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
Abstract
The invention discloses an aging-resistant packaging film and a preparation method thereof, belonging to the technical field of packaging films, wherein the aging-resistant packaging film comprises the following raw materials: polyvinyl chloride, dioctyl phthalate, trioctyl trimellitate, modified filler, composite stabilizer, chlorinated polyethylene and stearic acid; the preparation method of the modified filler comprises the following steps: mixing nano calcium carbonate, nano fumed silica and magnesium chloride aqueous solution, stirring, adding gamma-aminopropyl triethoxysilane, continuously stirring, adding ethylene glycol and citric acid, continuously stirring, adding disodium edetate, and continuously stirring to obtain modified liquid; carrying out high-temperature treatment on the modified liquid, freeze-drying and grinding; the aging-resistant packaging film disclosed by the invention has the advantages of good high temperature resistance, aging resistance, molding processability, high transparency and mechanical strength, no problem of precipitation of auxiliary agents in processing and using, and no problem of fish eyes.
Description
Technical Field
The invention relates to the technical field of packaging films, in particular to an aging-resistant packaging film and a preparation method thereof.
Background
The packaging film mainly refers to a film for packaging articles, and has the main functions of being capable of being clung to commodities and being suitable for packaging commodities with various shapes, so that the appearance of the package is attractive; ensures the sanitation, safety and other aspects of the commodity, and has the functions of tightness, fixity, dust prevention, moisture resistance and the like; the anti-collision and anti-collision protective material has good anti-collision performance and good protective performance; the anti-puncture performance and super-strength high performance are achieved, the goods stacked on the supporting plate are wound and packaged, and the package is enabled to be more stable and tidy and has super-strong waterproof effect. The packaging film is widely used in the industries of foreign trade export, papermaking, hardware, plastic chemical industry, building materials, foods, medicines and the like.
The packaging films used in the market are mainly polyethylene packaging films and polyvinyl chloride packaging films. The polyethylene packaging film is mainly formed by mixing and extruding polyethylene resins with different brands, has the advantages of good impact resistance, wear resistance, electrical insulation and molding processability, but the polyethylene packaging film has poor transparency, and the prepared film is slightly thicker and has poor transparency; can be deformed at a temperature of five sixty degrees without high temperature resistance; the tensile strength is relatively poor, and the stretching is easy; poor ageing resistance and easy ageing in sunlight.
The polyvinyl chloride packaging film has the advantages of excellent flame retardance, electrical insulation, good chemical resistance, high mechanical strength and electrical insulation, and the transparency of the polyvinyl chloride packaging film is higher than that of the polyethylene packaging film, but the high temperature resistance, ageing resistance and molding processability of the polyvinyl chloride packaging film are poor, so that additives such as a heat stabilizer, a lubricant, a processing modifier, an ultraviolet light absorber and a filler are required to be added in the production of the polyvinyl chloride packaging film, but the transparency of the polyvinyl chloride packaging film is affected by the addition of the additives, and some small-molecule additives are easy to precipitate on the surface of the polyvinyl chloride packaging film in the processing and use.
Chinese patent CN112321969B discloses an anti-aging plastic packaging film and a preparation method thereof, the anti-aging plastic packaging film comprises the following raw materials in parts by weight: 100-120 parts of polyvinyl chloride, 3-5 parts of dispersing agent, 3-5 parts of anti-aging agent, 1-3 parts of plasticizer and 2-4 parts of nano silicon dioxide; the aging resistant agent contains a large amount of hindered phenols and sulfur atoms, the sulfur atoms are easily oxidized into sulfoxide and sulfone compounds, so that the aging resistance of the packaging film is enhanced, a large amount of active methylene groups can perform condensation reaction with carbonyl compounds, meanwhile, intramolecular hydrogen bonds are destroyed, hydrogen bond rings are opened to form ionic compounds, the structure is unstable, redundant energy can be released by harmless heat energy to reach a stable state, the hydrogen bonds are further restored to be the original state, the packaging film is further protected from photochemical reaction, and the aging resistance of the packaging film is further enhanced; however, the anti-aging agent affects the transparency of the polyvinyl chloride packaging film, and cross-linking points are easily formed in polyvinyl chloride during plasticization, so that fish eyes are generated.
Chinese patent CN108948576a discloses a high light-transmitting heat-resistant aging-resistant polyvinyl chloride film and preparation method thereof, the polyvinyl chloride film comprises the following raw materials by weight portion: 15-20 parts of high-light-transmittance organic silicon rubber containing phosphite ester structures, 50-60 parts of polyvinyl chloride resin, 5-8 parts of microcrystalline cellulose, 5-8 parts of cyclodextrin, 2-5 parts of polyethylene glycol stearate, 2-5 parts of sodium metaaluminate and 1-3 parts of toughening agent; the polyvinyl chloride film has long service life, good light transmittance and good anti-fogging performance, but has the problem of precipitation of auxiliary agents in production and use.
Chinese patent CN107383550a discloses an anti-aging film packaging material and a preparation method thereof, the anti-aging film packaging material comprises the following raw materials in parts by weight: 45-80 parts of polyethylene, 30-60 parts of polyethylene oxide, 30-50 parts of polyether sulfone resin, 5-13 parts of trioctyl trimellitate, 10-20 parts of polyvinyl chloride thermoplastic elastomer, 2-8 parts of rosin glyceride, 5-15 parts of tributyl phosphate, 3-10 parts of barite powder, 3-9 parts of ceramic powder, 1-5 parts of zinc dimethacrylate, 3-11 parts of red phosphorus master batch, 2-8 parts of polydimethylsiloxane, 5-15 parts of magnesium methacrylate, 2-10 parts of dicumyl peroxide, 6-12 parts of carbon fiber, 3-8 parts of zinc oxide, 4-13 parts of talcum powder, 2-7 parts of anti-aging agent, 3-12 parts of bauxite and 3-6 parts of sulfur; the anti-aging film packaging material has the advantages of good aging resistance and long service life, but the anti-aging film packaging material has low transparency and has the problem of precipitation of auxiliary agents in production and use.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the ageing-resistant packaging film and the preparation method thereof, wherein the ageing-resistant packaging film has good high temperature resistance, ageing resistance, molding processability and high transparency and mechanical strength, and the problems of auxiliary agent precipitation and fisheye precipitation in the processing and using processes are avoided.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the anti-aging packaging film comprises the following raw materials in parts by weight: 100-110 parts of polyvinyl chloride, 10-15 parts of dioctyl phthalate, 8-10 parts of trioctyl trimellitate, 12-15 parts of modified filler, 5-6 parts of composite stabilizer, 1-2 parts of chlorinated polyethylene and 0.2-0.3 part of stearic acid;
the polyvinyl chloride is loose by a suspension method, and the average polymerization degree is 800-1000;
the preparation method of the modified filler comprises the following steps: adding nano calcium carbonate, nano fumed silica and 10-15% magnesium chloride aqueous solution into a reaction kettle, controlling the temperature of the reaction kettle to 45-50 ℃, controlling the stirring speed to 80-100rpm, stirring for 30-35min, adding gamma-aminopropyl triethoxysilane, continuously stirring for 15-20min, adding ethylene glycol and citric acid, continuously stirring for 15-20min, adding disodium ethylenediamine tetraacetate, and continuously stirring for 15-20min to obtain modified liquid; standing the modified liquid at 80-85 ℃ for 2-2.5h, naturally recovering to room temperature, then freeze-drying, controlling the temperature of freeze-drying to be-50 ℃ to-40 ℃ and the time to be 8-9h, and grinding until the particle size is 50-60nm after freeze-drying is finished to obtain modified filler;
the particle size of the nano calcium carbonate is 40-60nm;
the particle size of the nano fumed silica is 5-20nm;
in the preparation of the modified filler, the weight ratio of nano calcium carbonate to nano fumed silica to 10-15% of magnesium chloride aqueous solution to gamma-aminopropyl triethoxysilane to ethylene glycol to citric acid to disodium ethylenediamine tetraacetate is 50-55:5-8:500-520:3-5:65-70:12-15:15-18;
the preparation method of the composite stabilizer comprises the following steps: adding nano fumed silica, vinyl trimethoxy silane, diphenyl dimethoxy silane, acetic acid and N, N-dimethylformamide into a reaction kettle, controlling the temperature of the reaction kettle to 60-65 ℃, controlling the stirring speed to 80-100rpm, stirring for 1.5-2h, centrifuging, controlling the rotating speed at 8000-10000rpm after the completion of the dripping, controlling the time to 5-6min, obtaining treated silica after the end of the centrifuging, adding the treated silica and absolute ethyl alcohol into the reaction kettle, controlling the temperature of the reaction kettle to 40-45 ℃, controlling the stirring speed to 80-100rpm, after stirring for 30-35min, slowly dripping butyl acrylate into the reaction kettle, controlling the dripping speed of butyl acrylate to 1-2g/min, after the dripping is finished, continuously stirring for 3-4h, slowly dripping ethylenediamine into the reaction kettle, controlling the dripping speed of ethylenediamine to 1-1.5g/min, continuously stirring for 2-3h after the dripping is finished, obtaining a reaction liquid, performing ultrasonic vibration on the reaction liquid, controlling the temperature at 40-45 ℃ after the ultrasonic vibration, controlling the frequency at 30-50kHz, controlling the frequency to 8000 ℃ for 20-25min, and then performing stable centrifuging for 110-8 min, and drying the mixture after the time to obtain a primary precipitate; mixing the primary composite stabilizer, dibutyl tin maleate, epoxidized soybean oil and 4-tert-butylphenyl salicylate, and performing ultrasonic vibration, wherein the temperature is controlled to be 20-25 ℃, the frequency is controlled to be 30-50kHz, and the time is controlled to be 30-35min during ultrasonic vibration to obtain the composite stabilizer;
the particle size of the nano fumed silica is 5-20nm;
in the preparation of the composite stabilizer, the weight ratio of nano fumed silica, vinyl trimethoxy silane, diphenyl dimethoxy silane, acetic acid, N-dimethylformamide, absolute ethyl alcohol, butyl acrylate, ethylenediamine, dibutyl tin maleate, epoxidized soybean oil and 4-tert-butylphenyl salicylate is 50-55:0.4-0.6:15-17:0.8-1:450-480:500-520:20-23:35-38:150-160:30-35:120-140.
A preparation method of an anti-aging packaging film specifically comprises the following steps:
weighing raw materials according to the specified weight portions, adding all the raw materials into a high-speed mixer for high-speed mixing, controlling the rotating speed of the high-speed mixer to be 400-600rpm and the time to be 10-15min, adding the raw materials into an internal mixer for plasticizing after the high-speed mixing is finished, controlling the temperature of the internal mixer to be 190-200 ℃ and the rotating speed to be 40-60rpm and the time to be 8-10min, adding the raw materials into a three-section double-screw extruder for extrusion after the plasticizing is finished, controlling the three-section temperature of the three-section double-screw extruder to be 185-190 ℃ and 190-195-200 ℃ respectively, and carrying out traction, cutting and rolling after the extrusion to obtain the ageing-resistant packaging film.
Compared with the prior art, the invention has the beneficial effects that:
(1) The aging-resistant packaging film has good molding processability, and the melt flow rate can reach 27-30g/10min;
(2) The aging-resistant packaging film disclosed by the invention has high transparency, the light transmittance can reach 91.8-92.7%, and the haze can be reduced to 3.2-3.5%;
(3) The aging-resistant packaging film has high mechanical strength, the longitudinal tensile strength can reach 38.2-40.1MPa, the transverse tensile strength can reach 32.5-34.2MPa, the longitudinal tearing strength can reach 57.5-59.1kN/m, the transverse tearing strength can reach 46.2-47.5kN/m, the longitudinal elongation at break can reach 234.8-238.4%, and the transverse elongation at break can reach 210.2-213.0%;
(4) The aging-resistant packaging film disclosed by the invention has no problem of precipitation of auxiliary agents in the processing and using processes;
(5) The aging-resistant packaging film disclosed by the invention has no problem of fish eyes;
(6) The aging-resistant packaging film disclosed by the invention has good high temperature resistance, after being placed at 60 ℃ for 100 days, the light transmittance can reach 91.6-92.5%, the haze can be reduced to 3.5-4.0%, the longitudinal tensile strength can reach 38.1-40.0MPa, the transverse tensile strength can reach 32.2-34.1MPa, the longitudinal tear strength can reach 57.0-58.7kN/m, the transverse tear strength can reach 45.7-46.9kN/m, the longitudinal elongation at break can reach 230.1-232.8%, and the transverse elongation at break can reach 209.2-211.2%;
(7) The aging-resistant packaging film disclosed by the invention has good aging resistance, after being placed under an ultraviolet lamp and continuously irradiated for 100 days, the light transmittance can reach 91.2-92.3%, the haze can be reduced to 3.5-3.7%, the longitudinal tensile strength can reach 37.8-39.7MPa, the transverse tensile strength can reach 32.1-33.4MPa, the longitudinal tear strength can reach 57.0-58.4kN/m, the transverse tear strength can reach 45.6-46.6kN/m, the longitudinal elongation at break can reach 228.5-233.0%, and the transverse elongation at break can reach 204.6-207.4%.
Detailed Description
Specific embodiments of the present invention will now be described in order to provide a clearer understanding of the technical features, objects and effects of the present invention.
Example 1
The anti-aging packaging film comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride, 10 parts of dioctyl phthalate, 8 parts of trioctyl trimellitate, 12 parts of modified filler, 5 parts of composite stabilizer, 1 part of chlorinated polyethylene and 0.2 part of stearic acid;
the polyvinyl chloride is loose by a suspension method, and the average polymerization degree is 800;
the preparation method of the modified filler comprises the following steps: adding nano calcium carbonate, nano fumed silica and 10% magnesium chloride aqueous solution by mass into a reaction kettle, controlling the temperature of the reaction kettle to 45 ℃, controlling the stirring speed to 80rpm, stirring for 30min, adding gamma-aminopropyl triethoxysilane, continuously stirring for 15min, adding ethylene glycol and citric acid, continuously stirring for 15min, adding disodium ethylenediamine tetraacetate, and continuously stirring for 15-20min to obtain a modified solution; standing the modified liquid at 80 ℃ for 2 hours, naturally recovering to room temperature, then freeze-drying, controlling the temperature of freeze-drying to be-50 ℃ and the time to be 8 hours, and grinding until the particle size is 50nm after freeze-drying, thus obtaining modified filler;
the particle size of the nano calcium carbonate is 40nm;
the particle size of the nano fumed silica is 5nm;
in the preparation of the modified filler, the weight ratio of nano calcium carbonate to nano fumed silica to 10% of magnesium chloride aqueous solution to gamma-aminopropyl triethoxysilane to ethylene glycol to citric acid to disodium ethylenediamine tetraacetate is 50:5:500:3:65:12:15;
the preparation method of the composite stabilizer comprises the following steps: adding nano fumed silica, vinyl trimethoxy silane, diphenyl dimethoxy silane, acetic acid and N, N-dimethylformamide into a reaction kettle, controlling the temperature of the reaction kettle to 60 ℃, controlling the stirring speed to 80rpm, centrifuging after the stirring for 1.5 hours, controlling the rotating speed at 8000rpm for 5 minutes, obtaining treated silica after the centrifuging, adding treated silica and absolute ethyl alcohol into the reaction kettle, controlling the temperature of the reaction kettle to 40 ℃, controlling the stirring speed to 80rpm, slowly dropwise adding butyl acrylate into the reaction kettle after the stirring for 30 minutes, controlling the dropwise adding speed of butyl acrylate to 1g/min, continuously stirring for 3 hours after the dropwise adding, slowly dropwise adding ethylenediamine into the reaction kettle, controlling the dropwise adding speed of ethylenediamine to 1g/min, continuously stirring for 2 hours after the dropwise adding, obtaining a reaction liquid, carrying out ultrasonic oscillation on the reaction liquid, controlling the temperature at 40 ℃ during ultrasonic oscillation, the frequency at 30kHz, the time at 20 minutes, centrifuging at 8000rpm, controlling the rotating speed at 6 minutes, and placing the sediment at 105 ℃ under the condition of primary drying to obtain a stable compound; mixing a primary composite stabilizer, dibutyl tin maleate, epoxidized soybean oil and 4-tert-butylphenyl salicylate, and performing ultrasonic vibration, wherein the temperature is controlled to be 20 ℃, the frequency is controlled to be 30kHz, and the time is controlled to be 30min during ultrasonic vibration to obtain the composite stabilizer;
the particle size of the nano fumed silica is 5nm;
in the preparation of the composite stabilizer, the weight ratio of nano fumed silica, vinyl trimethoxy silane, diphenyl dimethoxy silane, acetic acid, N-dimethylformamide, absolute ethyl alcohol, butyl acrylate, ethylenediamine, dibutyl tin maleate, epoxidized soybean oil and 4-tert-butylphenyl salicylate is 50:0.4:15:0.8:450:500:20:35:150:30:120.
A preparation method of an anti-aging packaging film specifically comprises the following steps:
weighing raw materials according to the specified weight parts, adding all the raw materials into a high-speed mixer for high-speed mixing, controlling the rotating speed of the high-speed mixer to be 400rpm and the time to be 10min, adding the raw materials into an internal mixer for plasticizing after the high-speed mixing is finished, controlling the temperature of the internal mixer to be 190 ℃ and the rotating speed to be 40rpm and the time to be 8min, adding the raw materials into a three-section double-screw extruder for extrusion after the plasticizing is finished, controlling the three-section temperature of the three-section double-screw extruder to be 185 ℃ and the temperature of the three-section double-screw extruder to be 190 ℃ respectively, and carrying out traction, cutting and rolling after extrusion to obtain the ageing-resistant packaging film.
In this embodiment, no problem of precipitation of the auxiliary agent occurs in the preparation of the aging-resistant packaging film, and no fish eyes occur on the prepared aging-resistant packaging film.
Example 2
The anti-aging packaging film comprises the following raw materials in parts by weight: 105 parts of polyvinyl chloride, 12 parts of dioctyl phthalate, 9 parts of trioctyl trimellitate, 14 parts of modified filler, 5.5 parts of composite stabilizer, 1.5 parts of chlorinated polyethylene and 0.2 part of stearic acid;
the polyvinyl chloride is loose by a suspension method, and the average polymerization degree is 900;
the preparation method of the modified filler comprises the following steps: adding nano calcium carbonate, nano fumed silica and 12% magnesium chloride aqueous solution into a reaction kettle, controlling the temperature of the reaction kettle to 48 ℃, controlling the stirring speed to 90rpm, stirring for 32min, adding gamma-aminopropyl triethoxysilane, continuously stirring for 18min, adding ethylene glycol and citric acid, continuously stirring for 18min, adding disodium ethylenediamine tetraacetate, and continuously stirring for 18min to obtain a modified solution; standing the modified liquid at 82 ℃ for 2.2 hours, naturally recovering to room temperature, then freeze-drying, controlling the temperature of freeze-drying to be-45 ℃ and the time to be 8.5 hours, and grinding the modified liquid to the particle size of 60nm after freeze-drying is finished to obtain modified filler;
the particle size of the nano calcium carbonate is 50nm;
the particle size of the nano fumed silica is 10nm;
in the preparation of the modified filler, the weight ratio of nano calcium carbonate to nano fumed silica to 10-15% of magnesium chloride aqueous solution to gamma-aminopropyl triethoxysilane to ethylene glycol to citric acid to disodium ethylenediamine tetraacetate is 52:6:510:4:68:13:17;
the preparation method of the composite stabilizer comprises the following steps: adding nano fumed silica, vinyl trimethoxy silane, diphenyl dimethoxy silane, acetic acid and N, N-dimethylformamide into a reaction kettle, controlling the temperature of the reaction kettle to 62 ℃, controlling the stirring speed to 90rpm, centrifuging after stirring for 1.8 hours, controlling the rotating speed at 9000rpm when centrifuging for 5.5 minutes, obtaining treated silica after centrifuging, adding treated silica and absolute ethyl alcohol into the reaction kettle, controlling the temperature of the reaction kettle to 42 ℃, controlling the stirring speed to 90rpm, slowly dropwise adding butyl acrylate into the reaction kettle after stirring for 32 minutes, controlling the dropwise adding speed of butyl acrylate to 1.5g/min, continuously stirring for 3.5 hours after dropwise adding ethylenediamine into the reaction kettle, controlling the dropwise adding speed of ethylenediamine to 1.2g/min after dropwise adding, continuously stirring for 2.5 hours to obtain a reaction liquid, carrying out ultrasonic vibration on the reaction liquid, controlling the temperature at 42 ℃ when ultrasonic vibration to 40kHz, controlling the time to 22 minutes, then centrifuging, controlling the rotating speed at 0rpm to be 7 ℃, and placing the mixture into a primary drying agent after the completion of the centrifugal vibration to obtain a stable precipitate under the condition of 108; mixing a primary composite stabilizer, dibutyl tin maleate, epoxidized soybean oil and 4-tert-butylphenyl salicylate, and performing ultrasonic vibration, wherein the temperature is controlled to be 22 ℃, the frequency is 40kHz, and the time is 32min during ultrasonic vibration to obtain the composite stabilizer;
the particle size of the nano fumed silica is 10nm;
in the preparation of the composite stabilizer, the weight ratio of nano fumed silica, vinyl trimethoxy silane, diphenyl dimethoxy silane, acetic acid, N-dimethylformamide, absolute ethyl alcohol, butyl acrylate, ethylenediamine, dibutyl tin maleate, epoxidized soybean oil and 4-tert-butylphenyl salicylate is 52:0.5:16:0.9:460:510:22:36:155:32:130.
A preparation method of an anti-aging packaging film specifically comprises the following steps:
weighing raw materials according to the specified weight parts, adding all the raw materials into a high-speed mixer for high-speed mixing, controlling the rotating speed of the high-speed mixer to be 500rpm, controlling the time to be 12min, adding the raw materials into an internal mixer for plasticizing after the high-speed mixing is finished, controlling the temperature of the internal mixer to be 195 ℃ and the rotating speed to be 50rpm, controlling the time to be 9min, adding the raw materials into a three-section double-screw extruder for extrusion after the plasticizing is finished, controlling the three-section temperature of the three-section double-screw extruder to be 188 ℃ and 192 ℃ respectively, and carrying out traction, cutting and rolling after the extrusion to obtain the ageing-resistant packaging film.
In this embodiment, no problem of precipitation of the auxiliary agent occurs in the preparation of the aging-resistant packaging film, and no fish eyes occur on the prepared aging-resistant packaging film.
Example 3
The anti-aging packaging film comprises the following raw materials in parts by weight: 110 parts of polyvinyl chloride, 15 parts of dioctyl phthalate, 10 parts of trioctyl trimellitate, 15 parts of modified filler, 6 parts of composite stabilizer, 2 parts of chlorinated polyethylene and 0.3 part of stearic acid;
the polyvinyl chloride is loose by a suspension method, and the average polymerization degree is 1000;
the preparation method of the modified filler comprises the following steps: adding nano calcium carbonate, nano fumed silica and 15% magnesium chloride aqueous solution by mass into a reaction kettle, controlling the temperature of the reaction kettle to 50 ℃, controlling the stirring speed to 100rpm, stirring for 35min, adding gamma-aminopropyl triethoxysilane, continuously stirring for 20min, adding ethylene glycol and citric acid, continuously stirring for 20min, adding disodium ethylenediamine tetraacetate, and continuously stirring for 20min to obtain a modified solution; standing the modified liquid at 85 ℃ for 2.5 hours, naturally recovering to room temperature, then freeze-drying, controlling the temperature of freeze-drying to be-40 ℃ and the time to be 9 hours, and grinding the modified liquid to the particle size of 60nm after freeze-drying is finished to obtain modified filler;
the particle size of the nano calcium carbonate is 60nm;
the particle size of the nano fumed silica is 20nm;
in the preparation of the modified filler, the weight ratio of nano calcium carbonate to nano fumed silica to 10-15% of magnesium chloride aqueous solution to gamma-aminopropyl triethoxysilane to ethylene glycol to citric acid to disodium ethylenediamine tetraacetate is 55:8:520:5:70:15:18;
the preparation method of the composite stabilizer comprises the following steps: adding nano fumed silica, vinyl trimethoxy silane, diphenyl dimethoxy silane, acetic acid and N, N-dimethylformamide into a reaction kettle, controlling the temperature of the reaction kettle to 65 ℃, controlling the stirring speed to 100rpm, centrifuging after the stirring for 2 hours, controlling the rotating speed at 10000rpm for 6 minutes, obtaining treated silica after the centrifuging, adding treated silica and absolute ethyl alcohol into the reaction kettle, controlling the temperature of the reaction kettle to 45 ℃, controlling the stirring speed to 100rpm, after 35 minutes, dropwise adding slow butyl acrylate into the reaction kettle, controlling the dropwise acceleration of butyl acrylate to 2g/min, continuously stirring for 4 hours after the dropwise adding, slowly dropwise adding ethylenediamine into the reaction kettle, controlling the dropwise acceleration of ethylenediamine to 1.5g/min, continuously stirring for 3 hours after the dropwise adding, obtaining a reaction liquid, carrying out ultrasonic oscillation on the reaction liquid, controlling the temperature at 45 ℃ during ultrasonic oscillation to 50kHz, the frequency to 25 minutes, centrifuging at 8 rpm, and placing the precipitate at 110 ℃ after the centrifuging is finished, and obtaining a primary stable compound; mixing a primary composite stabilizer, dibutyl tin maleate, epoxidized soybean oil and 4-tert-butylphenyl salicylate, and performing ultrasonic vibration, wherein the temperature is controlled to be 25 ℃, the frequency is 50kHz, and the time is 35min during ultrasonic vibration to obtain the composite stabilizer;
the particle size of the nano fumed silica is 20nm;
in the preparation of the composite stabilizer, the weight ratio of nano fumed silica, vinyl trimethoxy silane, diphenyl dimethoxy silane, acetic acid, N-dimethylformamide, absolute ethyl alcohol, butyl acrylate, ethylenediamine, dibutyl tin maleate, epoxidized soybean oil and 4-tert-butylphenyl salicylate is 55:0.6:17:1:480:520:23:38:160:35:140.
A preparation method of an anti-aging packaging film specifically comprises the following steps:
after the raw materials are weighed according to the specified weight parts, all the raw materials are added into a high-speed mixer for high-speed mixing, the rotating speed of the high-speed mixer is controlled to be 600rpm, the time is controlled to be 15min, the raw materials are added into an internal mixer for plasticizing after the high-speed mixing is finished, the temperature of the internal mixer is controlled to be 200 ℃, the rotating speed is controlled to be 60rpm, the time is controlled to be 10min, the raw materials are added into a three-section double-screw extruder for extrusion after the plasticizing is finished, the three-section temperature of the three-section double-screw extruder is controlled to be 190 ℃ and 195 ℃ respectively, and traction, cutting and rolling are carried out after the extrusion, so that the ageing-resistant packaging film is obtained.
In this embodiment, no problem of precipitation of the auxiliary agent occurs in the preparation of the aging-resistant packaging film, and no fish eyes occur on the prepared aging-resistant packaging film.
Comparative example 1
The aging-resistant packaging film and the preparation method thereof are adopted in the embodiment 2, and the difference is that: in the composition of the aging-resistant packaging film, a mixture of nano calcium carbonate and nano fumed silica is used for replacing a modified filler in an equivalent manner, wherein the weight ratio of the nano calcium carbonate to the nano fumed silica in the mixture is 52:6;
the particle size of the nano calcium carbonate is 50nm;
the particle size of the nano fumed silica is 10nm.
In this comparative example, no problem of precipitation of the auxiliary agent occurred in the preparation of the aging-resistant packaging film, but fish eyes occurred on the prepared aging-resistant packaging film.
Comparative example 2
The aging-resistant packaging film and the preparation method thereof are adopted in the embodiment 2, and the difference is that: in the composition of the aging-resistant packaging film, a mixture of dibutyl tin maleate, epoxidized soybean oil and 4-tert-butylphenyl salicylate is used for replacing a compound stabilizer in an equivalent amount, wherein the weight ratio of the dibutyl tin maleate, the epoxidized soybean oil and the 4-tert-butylphenyl salicylate in the mixture is 155:32:130.
In this comparative example, no fish eyes appeared on the prepared anti-aging packaging film, but the problem of precipitation of the auxiliary agent appeared in the preparation of the anti-aging packaging film.
Test example 1
Melt flow rates at 190℃and 2.16kg of the melt obtained after the plasticization in examples 1 to 3 and comparative examples 1 to 2 were measured as follows:
from the above results, it is found that the melt flow rate of the aging-resistant packaging film can be increased by adding a composite stabilizer containing the nano fumed silica subjected to the hybridization treatment to the aging-resistant packaging film, thereby improving the molding processability of the aging-resistant packaging film.
Test example 2
The anti-aging packaging films of examples 1 to 3 and comparative examples 1 to 2 were tested for thickness, transparency, haze, tensile strength, tear strength, elongation at break, and the test results were as follows:
from the above results, it is apparent that by adding the modified filler to the aging-resistant packaging film, the modified filler can be treated with the nano calcium carbonate and the nano fumed silica during the preparation, and the nano calcium carbonate can be made transparent, and at the same time, the compatibility between the nano calcium carbonate, the nano fumed silica and the polyvinyl chloride can be improved, so that the transparency and the haze of the aging-resistant packaging film can be improved, and at the same time, the addition of the modified filler can also avoid the occurrence of fish eyes on the aging-resistant packaging film as can be seen from the tests on fish eyes in examples 1 to 3 and comparative examples 1 to 2.
Test example 3
The aging-resistant packaging films of examples 1 to 3 and comparative examples 1 to 2 were left to stand at 60℃for 100 days, and then the aging-resistant packaging films were tested for transparency, haze, tensile strength, tear strength, elongation at break while observing the presence or absence of the auxiliary agent precipitation phenomenon, and the test and observation results were as follows:
from the above results, it is found that the high temperature resistance of the aging-resistant packaging film can be improved by adding the modified filler and the composite stabilizer to the aging-resistant packaging film, and it can be seen from the tests for precipitation of the auxiliary agent in examples 1-3 and comparative examples 1-2 that the addition of the composite stabilizer also can avoid the problem of precipitation of the auxiliary agent in the preparation of the aging-resistant packaging film. The auxiliary agent is precipitated, commonly called as spray, and is specifically expressed as that the macromolecular auxiliary agent moves from the inside of the aging-resistant packaging film to the surface, so that a layer of white vaporific substance appears on the surface of the aging-resistant packaging film, and the white vaporific substance can be directly observed by naked eyes.
Test example 4
The aging-resistant packaging films of examples 1-3 and comparative examples 1-2 were subjected to ultraviolet irradiation under an ultraviolet lamp, the wavelength of the ultraviolet irradiation was controlled to be 350nm, and the irradiation intensity was controlled to be 0.68W/m 2 After 100 days of continuous ultraviolet irradiation, the anti-aging packaging film is tested for transparency, haze, tensile strength, tearing strength and elongation at break, meanwhile, whether an auxiliary agent is precipitated or not is observed, and the test and observation results are as follows:
from the above results, it is known that the nano fumed silica hybridized in the composite stabilizer can cooperate with the 4-tert-butylphenyl salicylate to improve the aging resistance of the aging-resistant packaging film by adding the composite stabilizer into the aging-resistant packaging film;
meanwhile, the nano fumed silica subjected to hybridization treatment in the composite stabilizer can also play a role in avoiding precipitation of the auxiliary agent in production and use.
The percentages used in the present invention are mass percentages unless otherwise indicated.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The aging-resistant packaging film is characterized by comprising the following raw materials in parts by weight: 100-110 parts of polyvinyl chloride, 10-15 parts of dioctyl phthalate, 8-10 parts of trioctyl trimellitate, 12-15 parts of modified filler, 5-6 parts of composite stabilizer, 1-2 parts of chlorinated polyethylene and 0.2-0.3 part of stearic acid;
the preparation method of the modified filler comprises the following steps: adding nano calcium carbonate, nano fumed silica and magnesium chloride aqueous solution into a reaction kettle, controlling the temperature of the reaction kettle to 45-50 ℃, stirring, adding gamma-aminopropyl triethoxysilane, continuously stirring, adding ethylene glycol and citric acid, continuously stirring, adding disodium ethylenediamine tetraacetate, and continuously stirring to obtain a modified liquid; standing the modified liquid at 80-85 ℃ for 2-2.5h, naturally recovering to room temperature, then freeze-drying, and grinding after freeze-drying is finished to obtain modified filler;
the preparation method of the composite stabilizer comprises the following steps: adding nano fumed silica, vinyl trimethoxy silane, diphenyl dimethoxy silane, acetic acid and N, N-dimethylformamide into a reaction kettle, controlling the temperature of the reaction kettle to 60-65 ℃, stirring, centrifuging to obtain treated silica after centrifuging, adding treated silica and absolute ethyl alcohol into the reaction kettle, controlling the temperature of the reaction kettle to 40-45 ℃, stirring, slowly dropwise adding butyl acrylate into the reaction kettle, continuously stirring after dropwise adding, slowly dropwise adding ethylenediamine into the reaction kettle, continuously stirring after dropwise adding, obtaining a reaction liquid, carrying out ultrasonic oscillation on the reaction liquid, centrifuging, drying a precipitate after centrifuging to obtain a primary composite stabilizer; and mixing the primary composite stabilizer, dibutyl tin maleate, epoxidized soybean oil and 4-tert-butylphenyl salicylate, and performing ultrasonic vibration to obtain the composite stabilizer.
2. The aging resistant packaging film according to claim 1, wherein the polyvinyl chloride is in a suspension-process loose form and has an average degree of polymerization of 800 to 1000.
3. The aging-resistant packaging film according to claim 1, wherein in the preparation of the modified filler, the particle size of the nano calcium carbonate is 40-60nm;
the particle size of the nano fumed silica is 5-20nm.
4. The aging resistant packaging film according to claim 1, wherein in the preparation of the modified filler, the weight ratio of nano calcium carbonate, nano fumed silica, magnesium chloride aqueous solution, gamma-aminopropyl triethoxysilane, ethylene glycol, citric acid, disodium edetate is 50-55:5-8:500-520:3-5:65-70:12-15:15-18;
the mass fraction of the magnesium chloride aqueous solution is 10-15%.
5. The anti-aging packaging film according to claim 1, wherein in the preparation of the composite stabilizer, the dripping speed of butyl acrylate is 1-2g/min, and the dripping speed of ethylenediamine is 1-1.5g/min;
the particle size of the nano fumed silica is 5-20nm.
6. The anti-aging packaging film according to claim 1, wherein the composite stabilizer is prepared by mixing nano fumed silica, vinyltrimethoxysilane, diphenyldimethoxysilane, acetic acid, N-dimethylformamide, absolute ethyl alcohol, butyl acrylate, ethylenediamine, dibutyltin maleate, epoxidized soybean oil, and 4-tert-butylphenyl salicylate in a weight ratio of 50-55:0.4-0.6:15-17:0.8-1:450-480:500-520:20-23:35-38:150-160:30-35:120-140.
7. A method for preparing an aging-resistant packaging film according to any one of claims 1 to 6, wherein after raw materials are weighed according to specified parts by weight, all raw materials are added into a high-speed mixer to be mixed at high speed, the mixture is added into an internal mixer to be plasticized after the high-speed mixing is finished, the mixture is added into a three-section double-screw extruder to be extruded after the plasticizing is finished, and traction, cutting and rolling are carried out after the extrusion, so that the aging-resistant packaging film is obtained.
8. The method for producing an aging-resistant packaging film according to claim 7, wherein the rotation speed of the high-speed mixer in the high-speed mixing is 400 to 600rpm for 10 to 15 minutes;
the temperature of the internal mixer in plasticization is 190-200 ℃, the rotating speed is 40-60rpm, and the time is 8-10min;
the three-stage temperature of the three-stage double screw extruder in the extrusion is 185-190 ℃, 190-195 ℃ and 195-200 ℃ respectively.
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| CN106317855A (en) * | 2016-08-31 | 2017-01-11 | 安徽楚江高新电材有限公司 | Aging-resistant and high-hardness cable material and preparation method thereof |
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| WO2021129216A1 (en) * | 2019-12-28 | 2021-07-01 | 江苏达胜高聚物股份有限公司 | Pvc cable material and preparation method therefor |
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| SU601276A1 (en) * | 1975-02-04 | 1978-04-05 | Институт Органической Химии Ордена Ленина Ан Украинской Сср | Method of obtaining complex stabilizers of polyvinyl chloride |
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Inventor after: Xu Lei Inventor before: Xu Lei Inventor before: Feng Qi Inventor before: Geng Zongliang Inventor before: Sun Jinrong |