CN108586823A - A kind of environmental protection type packing film and preparation method thereof with high barrier - Google Patents
A kind of environmental protection type packing film and preparation method thereof with high barrier Download PDFInfo
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- CN108586823A CN108586823A CN201810561488.3A CN201810561488A CN108586823A CN 108586823 A CN108586823 A CN 108586823A CN 201810561488 A CN201810561488 A CN 201810561488A CN 108586823 A CN108586823 A CN 108586823A
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- 230000004888 barrier function Effects 0.000 title claims abstract description 67
- 238000012856 packing Methods 0.000 title claims abstract description 33
- 230000007613 environmental effect Effects 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 229920002472 Starch Polymers 0.000 claims abstract description 45
- 239000008107 starch Substances 0.000 claims abstract description 45
- 235000019698 starch Nutrition 0.000 claims abstract description 45
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000002994 raw material Substances 0.000 claims abstract description 23
- 238000004132 cross linking Methods 0.000 claims abstract description 22
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims abstract description 15
- 239000005033 polyvinylidene chloride Substances 0.000 claims abstract description 15
- 229920002748 Basalt fiber Polymers 0.000 claims abstract description 13
- 239000005909 Kieselgur Substances 0.000 claims abstract description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 13
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 13
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004246 zinc acetate Substances 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 15
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 15
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 229910021389 graphene Inorganic materials 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 13
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 11
- 239000000839 emulsion Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 229920001296 polysiloxane Polymers 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 239000011812 mixed powder Substances 0.000 claims description 10
- 238000010792 warming Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 6
- 239000006087 Silane Coupling Agent Chemical group 0.000 claims description 6
- 150000002148 esters Chemical class 0.000 claims description 6
- 229920001747 Cellulose diacetate Polymers 0.000 claims description 5
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 5
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 2
- 210000000481 breast Anatomy 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- 229910052710 silicon Inorganic materials 0.000 claims 2
- 239000010703 silicon Substances 0.000 claims 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 238000004806 packaging method and process Methods 0.000 abstract description 9
- 239000012785 packaging film Substances 0.000 description 11
- 229920006280 packaging film Polymers 0.000 description 11
- 235000013339 cereals Nutrition 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- LKFHUFAEFBRVQX-UHFFFAOYSA-N decanedioic acid;propane-1,2,3-triol Chemical compound OCC(O)CO.OC(=O)CCCCCCCCC(O)=O LKFHUFAEFBRVQX-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000003413 degradative effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- ZFOZVQLOBQUTQQ-UHFFFAOYSA-N Tributyl citrate Chemical compound CCCCOC(=O)CC(O)(C(=O)OCCCC)CC(=O)OCCCC ZFOZVQLOBQUTQQ-UHFFFAOYSA-N 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- -1 carboxyl succinic acid-butanediol ester Chemical class 0.000 description 2
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 1
- 229920002261 Corn starch 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
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 229940099112 cornstarch Drugs 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000011229 interlayer Substances 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
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 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
- 239000005022 packaging material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004170 rice bran wax Substances 0.000 description 1
- 235000019384 rice bran wax Nutrition 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920006300 shrink film Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/04—Starch derivatives, e.g. crosslinked derivatives
-
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/08—Homopolymers or copolymers of vinylidene chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of environmental protection type packing films with high barrier, include the raw material of following parts by weight：34 38 parts of modified crosslinking starch, 20 26 parts of polyvinylidene chloride, 12 16 parts of basalt fibre, 6 10 parts of property of modified rectorite, 59 parts of zinc acetate, 8 14 48 parts of part, nanometer lithium diatomaceous earth of barrier, 36 parts of nano aluminium oxide, 37 parts of polyethylene glycol.The object of the present invention is to provide a kind of environmental protection type packing film and preparation method thereof with high barrier, the packaging mould is not only environmentally friendly, while barrier property is preferable, has higher use value and good application prospect.
Description
Technical field
The present invention relates to packaging technical field of membrane, and in particular to a kind of environmental protection type packing film and its system with high barrier
Preparation Method.
Background technology
Packaging film is mainly squeezed out by the resin mixing of several different trades mark, has puncture resistant, super-strength high-performance right
The cargo being deposited on supporting plate is wound packaging, keeps packing material more firm clean and tidy, more superpower waterproof action is made extensively
With in foreign export, papermaking, hardware, plastics chemical industry, building materials, food pharmaceuticals industry, packaging film uses the advantages of shrink-wraping
It is：1, it is adapted to pack variously-shaped commodity, increases product appearance attraction；2, film can be close to commodity, have transparent
Property, good appearance cleans beautiful；3, packaged commodity have wholesomeness, keeping a public place clean property, pack, and dust-proof resistance is wet；4, it shrinks
Packaging has good shockproof hitting property, protecting against shock and good protective value；5, packaged commodity have compactness and
Stationarity, widget will not be dilapidated in packaging；6, heat shrink films can also be used for replacing all kinds of cartons, not advise especially
Then in terms of the combined type packaging of body article or commodity, packing cost is not only saved, and meet packaging trend.
Existing packaging film environmental-protecting performance is poor, while barrier property is bad, Chinese patent literature (publication number：
CN105254927A a kind of safe environment protection type sterilizing dinnerware packaging film) is disclosed, field of packaging material is related to, by weighing as follows
The raw material of amount number is made：90-100 parts of cornstarch, 20-25 parts of microcrystalline cellulose, 13-18 parts of crystallite stone flour, caseinic acid
12-16 parts of sodium, 10-15 parts of modified straw powder, active 10-15 parts of powdered carbon, 10-15 parts of rilanit special, nano-titanium dioxide 8-
12 parts, 8-12 parts of rice bran wax, 6-10 parts of tributyl citrate, 5-8 parts of dibutyl tin laurate, 3-6 parts of antiseptic, ethyl alcohol
35-45 parts, 250-300 parts of water, though the packaging film have it is nontoxic, barrier property is not still good enough.
Chinese patent literature (publication number：CN104672503A a kind of high barrier degradative plastics) is disclosed, is formed sediment by crystallite
The high barrier degradative plastics that powder is formed with end carboxyl succinic acid-butanediol ester prepolymer by barrier transesterification and chain extension,
Composition of raw materials includes following components by weight：50-65 parts of Microcrystalline Starch, end carboxyl succinic acid-butanediol ester prepolymer 20-
25 parts, 3-5 parts of barrier, 2-3 parts of heat resistance accessory, 0.5-1 parts of chain extender, 0.02-0.05 parts of catalyst, processing aid 0.3-
1.0 part；The literature use Microcrystalline Starch as main base, Microcrystalline Starch by being combined together between starch chain, due to
Starch chain is different in size, causes lattice imperfect, and there are many defects, it is difficult control to prepare, inconvenient, easily makes the modeling of preparation
Expect that performance is not very stable, limits packaging membrane technology development.
Invention content
In view of the drawbacks of the prior art, the object of the present invention is to provide a kind of environmental protection type packing film with high barrier and
Preparation method, the packaging mould is not only environmentally friendly, while barrier property is preferable, before having higher use value and good application
Scape.
The present invention solves technical problem and adopts the following technical scheme that：
The present invention provides a kind of environmental protection type packing films with high barrier, include the raw material of following parts by weight：
34-38 parts of modified crosslinking starch, 20-26 parts of polyvinylidene chloride, 12-16 parts of basalt fibre, property of modified rectorite
6-10 parts, 5-9 parts of zinc acetate, 8-14 parts of barrier, 4-8 parts of nanometer lithium diatomaceous earth, 3-6 parts of nano aluminium oxide, polyethylene glycol 3-7
Part.
Preferably, the environmental protection type packing film with high barrier includes the raw material of following parts by weight：
36 parts of modified crosslinking starch, 23 parts of polyvinylidene chloride, 14 parts of basalt fibre, 8 parts of property of modified rectorite, zinc acetate
7 parts, 11 6 parts of part, nanometer lithium diatomaceous earth of barrier, 4.5 parts of nano aluminium oxide, 5 parts of polyethylene glycol.
Preferably, described by modified crosslinking starch preparation method is that silicone acrylic emulsion, graphene oxide are added in reaction kettle,
Reaction temperature is 85-95 DEG C, reaction time 35-45min, and cellulose diacetate, lined polymethyl ethylene carbonic acid are then added thereto
Ester is warming up to 105-115 DEG C, the reaction was continued 45-55min, and 20-40min is stirred in 1150-1250r/min rotating speeds, then again to
Crosslinked starch, di-t-butyl peroxide, silane coupling agent KH-560 is wherein added, continues to stir 45-55min, finally in 40-50
Dry 18-22h is to get modified crosslinking starch at DEG C.
Preferably, the silicone acrylic emulsion, graphene oxide, crosslinked starch substance mass ratio be (3-5)：(1-3)：7.
Preferably, the silicone acrylic emulsion, graphene oxide, crosslinked starch substance mass ratio be 4：2：7.
Preferably, the property of modified rectorite preparation method is that rectorite, montmorillonite are distributed in water, and speed of agitator is
115-125r/min, mixing time 15-25min, then filter, are dry, obtaining mixed powder, and mixed powder is added to quality point
Number is to carry out ultrasonic disperse 6-10min in 20-30% ferric chloride solutions, and ethylene-vinyl alcohol copolymer, dodecane is then added
Base sodium sulphate continues to stir 15-25min to get property of modified rectorite.
Preferably, the rectorite grain size is 40 mesh, and montmorillonite grain size is 20 mesh.
Preferably, the rectorite, montmorillonite, ethylene-vinyl alcohol copolymer substance mass ratio be 13:5:2.
Preferably, the barrier is poly- (decanedioic acid-glycerine) ester.
The present invention also provides a kind of preparation methods of the environmental protection type packing film with high barrier, include the following steps：
Step 1 weighs each component raw material as required；
Modified crosslinking starch, polyvinylidene chloride, basalt fibre, property of modified rectorite are warming up to 125-135 by step 2
DEG C, 25-35min is kept the temperature, zinc acetate, barrier, nanometer lithium diatomaceous earth, nano aluminium oxide, polyethylene glycol then is added extremely thereto
Raw material is sufficiently mixed, mixing speed 1250-1350r/min, and mixing time 45-55min obtains mixture A；
Step 2 is obtained squeezing out in mixture A feeding extruders by step 3, and extrusion temperature is 225-235 DEG C, with
It is sent into slab machine afterwards and be cooled into sheet material, cooling temperature is 25-35 DEG C, then preheats cooling sheet material, then
Transverse and longitudinal is carried out to stretch to get the environmental protection type packing film with high barrier.
Compared with prior art, the present invention has following advantageous effect：
(1) polyvinylidene chloride barrier property, good toughness, crosslinked starch have network compactness, but compactness be not it is very strong,
Therefore it is modified, is compounded to form packaging film material of main part with polyvinylidene chloride, is greatly improved packaging film barrier property, raw material
Between proportioning Jing Guo science and multigroup experimental demonstration, the packaging film good barrier property of preparation.
(2) modified crosslinking starch enhances crosslinked starch compactness using silicone acrylic emulsion, graphene oxide as reinforcing agent,
Though lined polymethyl ethylene carbonate has excellent choke to block water and degradable, the two is through di-t-butyl peroxide, silane coupling agent KH-
560 assist lower progress compound, greatly improve the barrier property of crosslinked starch.
(3) rectorite, which has, obstructs imparted, interlayer aperture controllable, therefore is modified, and bentonite is distributed to
In rectorite hole, bentonite large specific surface area is then used as ethylene-vinyl alcohol copolymer support material, and ethylene-vinyl alcohol
Copolymer processability and barrier property are preferable, then improve barrier property.
(4) it is obtained from embodiment 3 and comparative example 1-5, crosslinked starch is without modified to film oxygen transmission rate, film rate of perviousness
It influences to be more than to be not added with property of modified rectorite, the embodiment of the present invention 3 is relative to Chinese patent literature (publication number：CN105254927A)
Disclosing film oxygen transmission rate in a kind of safe environment protection type sterilizing dinnerware packaging film reduces 0.54%, and film rate of perviousness reduces
0.43%, thus barrier property of the present invention have significantly improve.
Specific implementation mode
With reference to specific embodiment, technical scheme in the embodiment of the invention is clearly and completely described, shows
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment 1.
A kind of environmental protection type packing film with high barrier of the present embodiment, includes the raw material of following parts by weight：
34 parts of modified crosslinking starch, 20 parts of polyvinylidene chloride, 12 parts of basalt fibre, 6 parts of property of modified rectorite, zinc acetate
5 parts, 84 parts of part, nanometer lithium diatomaceous earth of barrier, 3 parts of nano aluminium oxide, 3 parts of polyethylene glycol.
Modified crosslinking starch preparation method is that silicone acrylic emulsion, graphene oxide are added in reaction kettle by the present embodiment,
Reaction temperature is 85 DEG C, reaction time 35min, and cellulose diacetate, lined polymethyl ethylene carbonate, heating are then added thereto
To 105 DEG C, the reaction was continued, and crosslinked starch, peroxide is then added in 1150r/min rotating speeds stirring 20min in 45min thereto again
Change di-t-butyl, silane coupling agent KH-560, continue to stir 45min, 18-22h is finally dried at 40 DEG C to get modified crosslinking
Starch.
The silicone acrylic emulsion of the present embodiment, graphene oxide, crosslinked starch substance mass ratio be 3：1：7.
The property of modified rectorite preparation method of the present embodiment is that rectorite, montmorillonite are distributed in water, and speed of agitator is
115r/min, mixing time 15min then filter, are dry, obtaining mixed powder, mixed powder, which is added to mass fraction, is
In 20% ferric chloride solution, ultrasonic disperse 6min is carried out, ethylene-vinyl alcohol copolymer, lauryl sodium sulfate is then added, after
Continuous stirring 15min is to get property of modified rectorite.
The rectorite grain size of the present embodiment is 40 mesh, and montmorillonite grain size is 20 mesh.
The rectorite of the present embodiment, montmorillonite, ethylene-vinyl alcohol copolymer substance mass ratio be 13:5:2.
The barrier of the present embodiment is poly- (decanedioic acid-glycerine) ester.
A kind of preparation method of environmental protection type packing film with high barrier of the present embodiment, includes the following steps：
Step 1 weighs each component raw material as required；
Modified crosslinking starch, polyvinylidene chloride, basalt fibre, property of modified rectorite are warming up to 125 DEG C by step 2,
25min is kept the temperature, zinc acetate, barrier, nanometer lithium diatomaceous earth, nano aluminium oxide, polyethylene glycol to raw material are then added thereto and fills
Divide mixing, mixing speed 1250r/min, mixing time 45min obtain mixture A；
Step 2 is obtained squeezing out in mixture A feeding extruders by step 3, and extrusion temperature is 225 DEG C, is then sent
Enter to carry out being cooled into slab machine sheet material, cooling temperature is 25 DEG C, is then preheated cooling sheet material, then carry out transverse and longitudinal
To stretching to get the environmental protection type packing film with high barrier.
Embodiment 2.
A kind of environmental protection type packing film with high barrier of the present embodiment, includes the raw material of following parts by weight：
38 parts of modified crosslinking starch, 26 parts of polyvinylidene chloride, 16 parts of basalt fibre, 10 parts of property of modified rectorite, acetic acid
9 parts of zinc, 14 8 parts of part, nanometer lithium diatomaceous earth of barrier, 6 parts of nano aluminium oxide, 7 parts of polyethylene glycol.
Modified crosslinking starch preparation method is that silicone acrylic emulsion, graphene oxide are added in reaction kettle by the present embodiment,
Reaction temperature is 95 DEG C, reaction time 45min, and cellulose diacetate, lined polymethyl ethylene carbonate, heating are then added thereto
To 115 DEG C, the reaction was continued, and crosslinked starch, peroxide is then added in 1250r/min rotating speeds stirring 40min in 55min thereto again
Change di-t-butyl, silane coupling agent KH-560, continue to stir 55min, finally dry 22h forms sediment to get modified crosslinking at 50 DEG C
Powder.
The silicone acrylic emulsion of the present embodiment, graphene oxide, crosslinked starch substance mass ratio be 5：3：7.
The property of modified rectorite preparation method of the present embodiment is that rectorite, montmorillonite are distributed in water, and speed of agitator is
125r/min, mixing time 25min then filter, are dry, obtaining mixed powder, mixed powder, which is added to mass fraction, is
In 30% ferric chloride solution, ultrasonic disperse 10min is carried out, ethylene-vinyl alcohol copolymer, lauryl sodium sulfate is then added,
Continue to stir 25min to get property of modified rectorite.
The rectorite grain size of the present embodiment is 40 mesh, and montmorillonite grain size is 20 mesh.
The rectorite of the present embodiment, montmorillonite, ethylene-vinyl alcohol copolymer substance mass ratio be 13:5:2.
The barrier of the present embodiment is poly- (decanedioic acid-glycerine) ester.
A kind of preparation method of environmental protection type packing film with high barrier of the present embodiment, includes the following steps：
Step 1 weighs each component raw material as required；
Modified crosslinking starch, polyvinylidene chloride, basalt fibre, property of modified rectorite are warming up to 135 DEG C by step 2,
35min is kept the temperature, zinc acetate, barrier, nanometer lithium diatomaceous earth, nano aluminium oxide, polyethylene glycol to raw material are then added thereto and fills
Divide mixing, mixing speed 1350r/min, mixing time 55min obtain mixture A；
Step 2 is obtained squeezing out in mixture A feeding extruders by step 3, and extrusion temperature is 235 DEG C, is then sent
Enter to carry out being cooled into slab machine sheet material, cooling temperature is 35 DEG C, is then preheated cooling sheet material, then carry out transverse and longitudinal
To stretching to get the environmental protection type packing film with high barrier.
Embodiment 3.
A kind of environmental protection type packing film with high barrier of the present embodiment, includes the raw material of following parts by weight：
36 parts of modified crosslinking starch, 23 parts of polyvinylidene chloride, 14 parts of basalt fibre, 8 parts of property of modified rectorite, zinc acetate
7 parts, 11 6 parts of part, nanometer lithium diatomaceous earth of barrier, 4.5 parts of nano aluminium oxide, 5 parts of polyethylene glycol.
Modified crosslinking starch preparation method is that silicone acrylic emulsion, graphene oxide are added in reaction kettle by the present embodiment,
Reaction temperature is 90 DEG C, reaction time 40min, and cellulose diacetate, lined polymethyl ethylene carbonate, heating are then added thereto
To 110 DEG C, the reaction was continued, and crosslinked starch, peroxide is then added in 1200r/min rotating speeds stirring 30min in 50min thereto again
Change di-t-butyl, silane coupling agent KH-560, continue to stir 50min, finally dry 20h forms sediment to get modified crosslinking at 45 DEG C
Powder.
The silicone acrylic emulsion of the present embodiment, graphene oxide, crosslinked starch substance mass ratio be 4：2：7.
The property of modified rectorite preparation method of the present embodiment is that rectorite, montmorillonite are distributed in water, and speed of agitator is
120r/min, mixing time 20min then filter, are dry, obtaining mixed powder, mixed powder, which is added to mass fraction, is
In 25% ferric chloride solution, ultrasonic disperse 8min is carried out, ethylene-vinyl alcohol copolymer, lauryl sodium sulfate is then added, after
Continuous stirring 20min is to get property of modified rectorite.
The rectorite grain size of the present embodiment is 40 mesh, and montmorillonite grain size is 20 mesh.
The rectorite of the present embodiment, montmorillonite, ethylene-vinyl alcohol copolymer substance mass ratio be 13:5:2.
The barrier of the present embodiment is poly- (decanedioic acid-glycerine) ester.
A kind of preparation method of environmental protection type packing film with high barrier of the present embodiment, includes the following steps：
Step 1 weighs each component raw material as required；
Modified crosslinking starch, polyvinylidene chloride, basalt fibre, property of modified rectorite are warming up to 130 DEG C by step 2,
30min is kept the temperature, zinc acetate, barrier, nanometer lithium diatomaceous earth, nano aluminium oxide, polyethylene glycol to raw material are then added thereto and fills
Divide mixing, mixing speed 1300r/min, mixing time 50min obtain mixture A；
Step 2 is obtained squeezing out in mixture A feeding extruders by step 3, and extrusion temperature is 230 DEG C, is then sent
Enter to carry out being cooled into slab machine sheet material, cooling temperature is 30 DEG C, is then preheated cooling sheet material, then carry out transverse and longitudinal
To stretching to get the environmental protection type packing film with high barrier.
Comparative example 1.
It is essentially identical with the material and preparation process of embodiment 3, it has only the difference is that being not added with property of modified rectorite.
Comparative example 2.
It is essentially identical with the material and preparation process of embodiment 3, it has only the difference is that crosslinked starch is without modification.
Comparative example 3.
It is essentially identical with the material and preparation process of embodiment 3, it has only the difference is that being not added with barrier.
Comparative example 4.
It is essentially identical with the material and preparation process of embodiment 3, it has only the difference is that (open using Chinese patent literature
Number：CN105254927A the raw material and method of embodiment 1 in a kind of safe environment protection type sterilizing dinnerware packaging film) are disclosed.
Comparative example 5.
It is essentially identical with the material and preparation process of embodiment 3, it has only the difference is that (open using Chinese patent literature
Number：CN104672503A the raw material and method of embodiment 1 in a kind of high barrier degradative plastics) are disclosed.
Embodiment 3 and comparative example 1-5 the performance test results are as follows
It is obtained from embodiment 3 and comparative example 1-5, crosslinked starch is without modified to film oxygen transmission rate, film rate of perviousness shadow
It is more than to be not added with property of modified rectorite to ring, and the embodiment of the present invention 3 is relative to Chinese patent literature (publication number：CN105254927A) public
Having opened film oxygen transmission rate in a kind of safe environment protection type sterilizing dinnerware packaging film reduces 0.54%, and film rate of perviousness reduces
0.43%, thus barrier property of the present invention have significantly improve.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (10)
1. a kind of environmental protection type packing film with high barrier, which is characterized in that include the raw material of following parts by weight：
34-38 parts of modified crosslinking starch, 20-26 parts of polyvinylidene chloride, 12-16 parts of basalt fibre, property of modified rectorite 6-10
Part, 5-9 parts of zinc acetate, 8-14 parts of barrier, 4-8 parts of nanometer lithium diatomaceous earth, 3-6 parts of nano aluminium oxide, 3-7 parts of polyethylene glycol.
2. a kind of environmental protection type packing film with high barrier according to claim 1, which is characterized in that described that there is height
The environmental protection type packing film of barrier property includes the raw material of following parts by weight：
36 parts of modified crosslinking starch, 23 parts of polyvinylidene chloride, 14 parts of basalt fibre, 8 parts of property of modified rectorite, 7 parts of zinc acetate,
11 6 parts of part, nanometer lithium diatomaceous earth of barrier, 4.5 parts of nano aluminium oxide, 5 parts of polyethylene glycol.
3. a kind of environmental protection type packing film with high barrier according to claim 1, which is characterized in that described to be modified
Crosslinked starch preparation method is that silicone acrylic emulsion, graphene oxide are added in reaction kettle, and reaction temperature is 85-95 DEG C, when reaction
Between 35-45min, cellulose diacetate, lined polymethyl ethylene carbonate are then added thereto, is warming up to 105-115 DEG C, continues anti-
45-55min is answered, 20-40min is stirred in 1150-1250r/min rotating speeds, crosslinked starch, peroxidating two is then added thereto again
Tertiary butyl, silane coupling agent KH-560 continue to stir 45-55min, and finally dry 18-22h hands over to get modified at 40-50 DEG C
Join starch.
4. a kind of environmental protection type packing film with high barrier according to claim 3, which is characterized in that the third breast of the silicon
Liquid, graphene oxide, crosslinked starch substance mass ratio be（3-5）：（1-3）：7.
5. a kind of environmental protection type packing film with high barrier according to claim 4, which is characterized in that the third breast of the silicon
Liquid, graphene oxide, crosslinked starch substance mass ratio be 4：2：7.
6. a kind of environmental protection type packing film with high barrier according to claim 1, which is characterized in that the modification is tired
It is that rectorite, montmorillonite are distributed in water to hold in the palm Preparation Method made of stones, speed of agitator 115-125r/min, mixing time 15-
25min then filters, is dry, obtaining mixed powder, and mixed powder, which is added to mass fraction, is in 20-30% ferric chloride solutions, into
Ethylene-vinyl alcohol copolymer, lauryl sodium sulfate is then added in row ultrasonic disperse 6-10min, continues to stir 15-25min,
Up to property of modified rectorite.
7. a kind of environmental protection type packing film with high barrier according to claim 6, which is characterized in that the rectorite
Grain size is 40 mesh, and montmorillonite grain size is 20 mesh.
8. a kind of environmental protection type packing film with high barrier according to claim 6, which is characterized in that the tired support
Stone, montmorillonite, ethylene-vinyl alcohol copolymer substance mass ratio be 13:5:2.
9. a kind of environmental protection type packing film with high barrier according to claim 1, which is characterized in that the barrier
It is poly-（Decanedioic acid-glycerine）Ester.
10. a kind of method preparing the environmental protection type packing film as claimed in claim 1 or 2 with high barrier, feature exist
In including the following steps：
Step 1 weighs each component raw material as required；
Modified crosslinking starch, polyvinylidene chloride, basalt fibre, property of modified rectorite are warming up to 125-135 DEG C by step 2,
25-35min is kept the temperature, zinc acetate, barrier, nanometer lithium diatomaceous earth, nano aluminium oxide, polyethylene glycol to raw material are then added thereto
It is sufficiently mixed, mixing speed 1250-1350r/min, mixing time 45-55min obtains mixture A；
Step 2 is obtained squeezing out in mixture A feeding extruders by step 3, and extrusion temperature is 225-235 DEG C, is then sent
Enter to carry out being cooled into slab machine sheet material, cooling temperature is 25-35 DEG C, is then preheated cooling sheet material, then carry out
Transverse and longitudinal stretches to get the environmental protection type packing film with high barrier.
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| CN201810561488.3A CN108586823A (en) | 2018-06-04 | 2018-06-04 | A kind of environmental protection type packing film and preparation method thereof with high barrier |
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| CN201810561488.3A CN108586823A (en) | 2018-06-04 | 2018-06-04 | A kind of environmental protection type packing film and preparation method thereof with high barrier |
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