CN113584434A - Degradable reinforced aluminizer and preparation method thereof - Google Patents
Degradable reinforced aluminizer and preparation method thereof Download PDFInfo
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- CN113584434A CN113584434A CN202110772849.0A CN202110772849A CN113584434A CN 113584434 A CN113584434 A CN 113584434A CN 202110772849 A CN202110772849 A CN 202110772849A CN 113584434 A CN113584434 A CN 113584434A
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- 239000000463 material Substances 0.000 claims abstract description 19
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
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- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 11
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- 238000002156 mixing Methods 0.000 claims abstract description 10
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- 238000005507 spraying Methods 0.000 claims abstract description 5
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 239000000654 additive Substances 0.000 claims abstract description 3
- 230000000996 additive effect Effects 0.000 claims abstract description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 18
- 230000005496 eutectics Effects 0.000 claims description 18
- 239000002904 solvent Substances 0.000 claims description 18
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000002023 wood Substances 0.000 claims description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000004626 polylactic acid Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 8
- 239000001763 2-hydroxyethyl(trimethyl)azanium Substances 0.000 claims description 6
- 229910000505 Al2TiO5 Inorganic materials 0.000 claims description 6
- 235000019743 Choline chloride Nutrition 0.000 claims description 6
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 6
- 235000021355 Stearic acid Nutrition 0.000 claims description 6
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 6
- SGMZJAMFUVOLNK-UHFFFAOYSA-M choline chloride Chemical compound [Cl-].C[N+](C)(C)CCO SGMZJAMFUVOLNK-UHFFFAOYSA-M 0.000 claims description 6
- 229960003178 choline chloride Drugs 0.000 claims description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 6
- 235000006408 oxalic acid Nutrition 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 claims description 6
- 239000000600 sorbitol Substances 0.000 claims description 6
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- 238000007493 shaping process Methods 0.000 claims description 2
- 238000009834 vaporization Methods 0.000 claims description 2
- 230000008016 vaporization Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 4
- 235000011187 glycerol Nutrition 0.000 claims 2
- 230000000052 comparative effect Effects 0.000 description 6
- 229920005610 lignin Polymers 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 229920000426 Microplastic Polymers 0.000 description 2
- 241000219000 Populus Species 0.000 description 2
- 238000005269 aluminizing Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
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- 239000001257 hydrogen Substances 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
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- 238000011069 regeneration method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/20—Metallic material, boron or silicon on organic substrates
-
- 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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy 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
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
-
- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- 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
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- Chemical & Material Sciences (AREA)
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- Mechanical Engineering (AREA)
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- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a degradable reinforced aluminized film and a preparation method thereof, and the degradable reinforced aluminized film comprises a base material and an aluminum film layer evaporated on the surface of the base material, and is characterized in that the base material comprises a degradable plastic layer and a reinforced fiber layer, the degradable plastic layer is formed by blowing master batches formed by mixing and granulating PBAT, PLA, starch and an additive, and the reinforced fiber layer is formed by spraying lignin-cellulose slurry on the degradable plastic layer. The invention solves the problem that the degradable and low-strength aluminizer in the prior art can not be compatible.
Description
Technical Field
The invention relates to the technical field of composite films, in particular to a degradable reinforced aluminizer and a preparation method thereof.
Background
The aluminum-plated film has the characteristics of both a plastic film and a metal. The aluminizing on the surface of the film has the functions of shading, preventing ultraviolet radiation and the like, can prolong the quality guarantee period of contents, can improve the brightness of the film, replaces aluminum foil to a certain extent, and has low price, attractive appearance and better barrier property, so the aluminizing film has wide application in composite packaging, and is mainly applied to dry and puffed food packaging such as biscuits and the like and external packaging of some medicines and cosmetics at present.
However, the greatest disadvantage of the current material is that the material is not degradable, forms white pollution after being discarded, can be disintegrated into micro plastic in hundreds of years, and finally causes adverse effect on the continuous development of human beings because the micro plastic pollutes underground water, ocean and soil. Therefore, the improvement of the degradability of the material is the problem to be solved.
The degradable performance of the aluminizer can be improved by replacing the traditional non-degradable plastic with degradable plastic, such as plastic taking PBAT (polybutylene terephthalate-adipate) or PLA (polylactic acid) as a main body. However, as the specific gravity of the degradable polyester-based material increases, the overall breaking strength and elongation of the molded material are greatly affected. Therefore, how to maintain better breaking strength and elongation while improving degradability is an important direction for the current improvement of aluminum-plated films.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a degradable reinforced aluminizer and a preparation method thereof, so as to solve the problem that the aluminizer in the prior art is degradable and incompatible with low strength.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a degradable reinforcing aluminizer, includes substrate and the aluminium rete of coating by vaporization on the substrate surface, its characterized in that, the substrate includes degradable plastic layer and reinforcing fiber layer, the degradable plastic layer is blown the membrane shaping by the master batch that PBAT, PLA, starch and additive compounding granulation formed and is obtained, the reinforcing fiber layer is sprayed at the degradable plastic layer and is obtained by lignin-cellulose thick liquids.
Preferably, the master batch is prepared by granulating 65-70 parts by weight of PBAT, 5-15 parts by weight of PLA, 20-30 parts by weight of starch, 0.3-0.5 part by weight of stearic acid, 2-3 parts by weight of glycerol, 2-3 parts by weight of sorbitol, 0.3-0.6 part by weight of antioxidant 1010 and 0.5-1 part by weight of aluminum-titanate mixed material.
Preferably, the lignin-cellulose pulp has a solids content of 15 wt% to 20 wt%.
Preferably, the lignin-cellulose pulp is prepared by dissolving wood flour in a eutectic solvent, and adding water for regeneration, wherein the eutectic solvent is choline chloride and oxalic acid with a molar ratio of (1-1.2): 1. Choline chloride and oxalic acid can effectively dissolve lignin by destroying hydrogen bonds between wood flour fibers to form a mixed solution of cellulose and hemicellulose; and then adding water into the solution, wherein due to the hydrophobicity of the lignin, the lignin dissolved after the water is added is regenerated in situ, the lignin regenerated in situ is used as an adhesive, and then the residual DES is washed away by water, so that high-viscosity cellulose-lignin slurry is obtained, and finally the strength of the crossed fiber structure is improved.
The preparation method of the degradable reinforced aluminizer is characterized by comprising the following steps:
s1: preparing a degradable plastic layer:
s1.1: weighing 20-30 parts of starch, 0.3-0.5 part of stearic acid, 2-3 parts of glycerol, 2-3 parts of sorbitol, 0.3-0.6 part of antioxidant 1010 and 0.5-1 part of aluminum-titanate, and mixing for 10-30min in a high-speed mixer;
s1.2: weighing 65-70 parts by weight of PBAT and 5-15 parts by weight of PLA, and adding into a high-speed mixer of S1.1 for continuously mixing for 30-60 min;
s1.3: extruding and granulating the mixed material obtained in the S1.2 by using a double-screw granulator;
s1.4: s1.3, blowing the master batch obtained in the step A by using a film blowing machine to form;
s2: preparation of the reinforced fiber layer:
s2.1, stirring and mixing choline chloride and oxalic acid according to the molar ratio of (1-1.2) to 1 for 10-30min to form a eutectic solvent;
s2.2: weighing wood powder, adding the eutectic solvent in S2.1 according to the proportion of adding 2L of the eutectic solvent into each kilogram of wood powder, and stirring for 6-10 h;
s2.3: adding water into the mixture of S2.2 according to the proportion of adding 0.2L of water into each liter of eutectic solvent, and stirring for 10-30 min;
s2.4: filtering the slurry obtained in the step S2.3, and sequentially adding ethanol and water for cleaning until the volume content of the low eutectic solvent in the washing liquid is less than or equal to 1%;
s2.5: diluting the slurry of S2.4 by using ethanol until the solid content is 15 wt% -20 wt%, spraying the slurry on the degradable plastic film layer obtained in the step S1.4, and drying;
s3: and (4) evaporating metal aluminum onto the two surfaces of the base material obtained in the step (S2) by a film coating machine to form aluminum film layers.
Preferably, in the twin-screw extruder in the step S1.3, the screw rotating speed is 80-100rpm, and the temperature between the hopper of the extruder and the die area is 140-160 ℃.
Preferably, the nozzle temperature in the step S2.5 is 120-150 ℃, and the injection pressure is 65-75 MPa.
Preferably, the wood flour in step S2.2 is a particle made by pulverizing fast-growing wood as a raw material to 80 mesh or less.
The invention has the beneficial effects that: the base materials of the invention are degradable materials, which is beneficial to environmental protection, can be naturally degraded in soil within 100 days, and does not generate white pollution, and the reinforced fiber layer forms a crossed fiber structure with micro/nanometer diameter in the whole film, thereby not only improving the strength of the whole structure, but also leading the combination of each layer to be more compact and not to be layered easily.
Drawings
Fig. 1 is an SEM photograph of a reinforced fiber membrane of the present invention.
Detailed Description
The present invention will be further described with reference to the following examples.
In this patent application PBAT refers to polybutylene terephthalate-adipate and PLA refers to polylactic acid.
Example 1
The degradable reinforced aluminizer comprises an aluminum film layer, a degradable plastic layer, a reinforced fiber layer and an aluminum film layer in sequence, wherein the preparation process is as follows:
s1: preparing a degradable plastic layer:
s1.1: weighing 20-30 parts of starch, 0.3-0.5 part of stearic acid, 2-3 parts of glycerol, 2-3 parts of sorbitol, 0.3-0.6 part of antioxidant 1010 and 0.5-1 part of aluminum-titanate, and mixing for 10-30min in a high-speed mixer;
s1.2: weighing 65-70 parts by weight of PBAT and 5-15 parts by weight of PLA, and adding into a high-speed mixer of S1.1 for continuously mixing for 30-60 min;
s1.3: extruding and granulating the mixed material obtained in the S1.2 by using a double-screw granulator, wherein the rotating speed of a screw is 80-100rpm, and the temperature between an extruder hopper and a die area is 140-160 ℃;
s1.4: s1.3, blowing the master batch obtained in the step A by using a film blowing machine to form;
s2: preparation of the reinforced fiber layer:
s2.1, stirring and mixing choline chloride and oxalic acid according to the molar ratio of (1-1.2) to 1 for 10-30min to form a eutectic solvent;
s2.2: weighing 80-mesh poplar wood powder, adding the eutectic solvent in the S2.1 according to the proportion of adding 2L of the eutectic solvent to each kilogram of poplar wood powder, and stirring for 6-10 hours;
s2.3: adding water into the mixture of S2.2 according to the proportion of adding 0.2L of water into each liter of eutectic solvent, and stirring for 10-30 min;
s2.4: filtering the slurry obtained in the step S2.3, and sequentially adding ethanol and water for cleaning until the volume content of the low eutectic solvent in the washing liquid is less than or equal to 1%;
s2.5: diluting the slurry of S2.4 by using ethanol until the solid content is 15 wt% -20 wt%, spraying the diluted slurry on the degradable plastic film layer obtained in the step S1.4, wherein the temperature of a spray nozzle is 120-150 ℃, the spraying pressure is 65-75 MPa, and drying;
s3: and (4) evaporating metal aluminum to two surfaces of the base material obtained in the step S2 through a film coating machine to form aluminum film layers, so as to obtain the product.
Comparative example 1
Different from the embodiment 1, the base material of the embodiment is made of PET, and the raw material composition of the PET masterbatch comprises, by mass, 38 parts of PTA, 58 parts of ethylene glycol, and 0.6 part of an auxiliary agent.
Comparative example 2
Different from the embodiment 1, the base material layer of the embodiment is composed of a degradable plastic layer of 20 microns, and the degradable plastic layer is prepared from 65-70 parts by weight of PBAT, 5-15 parts by weight of PLA, 20-30 parts by weight of starch, 0.3-0.5 part by weight of stearic acid, 2-3 parts by weight of glycerol, 2-3 parts by weight of sorbitol, 0.3-0.6 part by weight of antioxidant 1010 and 0.5-1 part by weight of aluminum-titanate.
Product performance
Physical and mechanical property indexes and soil degradability of the final products in example 1, comparative example 1 and comparative example 2 are shown in the following table:
| item | Example 1 | Comparative example 1 | Comparative example 2 |
| Tensile Strength (MD/TD)/MPa | 45 | 200 | 21 |
| Elongation at break (MD/TD)/% | 298 | 96 | 312 |
| Tear Strength (MD/TD)/(Kn/m) | 85 | 66 | 42 |
| Fastness of coating | Grade 5 | 4 stage | Grade 3 |
| Complete degradation time of buried soil | 97 days | Does not degrade | 98 days |
The above table shows that the strength of the degradable reinforced aluminizer is higher than that of a common degradable aluminizer, natural degradation can be realized 97 days after soil burying, and the degradable reinforced aluminizer is more environment-friendly than a common PET aluminizer and is beneficial to popularization and application.
The above embodiments are only for illustrating the invention and are not to be construed as limiting the invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention, therefore, all equivalent technical solutions also belong to the scope of the invention, and the scope of the invention is defined by the claims.
Claims (8)
1. The utility model provides a degradable reinforcing aluminizer, includes substrate and the aluminium rete of coating by vaporization on the substrate surface, its characterized in that, the substrate includes degradable plastic layer and reinforcing fiber layer, the degradable plastic layer is blown the membrane shaping by the master batch that PBAT, PLA, starch and additive compounding granulation formed and is obtained, the reinforcing fiber layer is sprayed at the degradable plastic layer and is obtained by lignin-cellulose thick liquids.
2. The degradable reinforced aluminizer of claim 1, wherein the master batch is prepared by granulating 65-70 parts by weight of PBAT, 5-15 parts by weight of PLA, 20-30 parts by weight of starch, 0.3-0.5 part by weight of stearic acid, 2-3 parts by weight of glycerin, 2-3 parts by weight of sorbitol, 0.3-0.6 part by weight of antioxidant 1010 and 0.5-1 part by weight of aluminum-titanate mixture.
3. The degradable reinforced aluminizer of claim 1, wherein the lignin-cellulose pulp has a solid content of 15 wt% to 20 wt%.
4. The degradable reinforced aluminizer of claim 3, wherein the lignin-cellulose slurry is regenerated by dissolving wood flour in a eutectic solvent, choline chloride and oxalic acid in a molar ratio (1-1.2):1, and adding water.
5. A method for preparing the degradable reinforced aluminized film according to any one of claims 1 to 4, characterized in that it comprises the following steps:
s1: preparing a degradable plastic layer:
s1.1: weighing 20-30 parts of starch, 0.3-0.5 part of stearic acid, 2-3 parts of glycerol, 2-3 parts of sorbitol, 0.3-0.6 part of antioxidant 1010 and 0.5-1 part of aluminum-titanate, and mixing for 10-30min in a high-speed mixer;
s1.2: weighing 65-70 parts by weight of PBAT and 5-15 parts by weight of PLA, and adding into a high-speed mixer of S1.1 for continuously mixing for 30-60 min;
s1.3: extruding and granulating the mixed material obtained in the S1.2 by using a double-screw granulator;
s1.4: s1.3, blowing the master batch obtained in the step A by using a film blowing machine to form;
s2: preparation of the reinforced fiber layer:
s2.1, stirring and mixing choline chloride and oxalic acid according to the molar ratio of (1-1.2) to 1 for 10-30min to form a eutectic solvent;
s2.2: weighing wood powder, adding the eutectic solvent in S2.1 according to the proportion of adding 2L of the eutectic solvent into each kilogram of wood powder, and stirring for 6-10 h;
s2.3: adding water into the mixture of S2.2 according to the proportion of adding 0.2L of water into each liter of eutectic solvent, and stirring for 10-30 min;
s2.4: filtering the slurry obtained in the step S2.3, and sequentially adding ethanol and water for cleaning until the volume content of the low eutectic solvent in the washing liquid is less than or equal to 1%;
s2.5: diluting the slurry of S2.4 by using ethanol until the solid content is 15 wt% -20 wt%, spraying the slurry on the degradable plastic film layer obtained in the step S1.4, and drying;
s3: and (4) evaporating metal aluminum onto the two surfaces of the base material obtained in the step (S2) by a film coating machine to form aluminum film layers.
6. The method for preparing the degradable reinforced aluminizer of claim 5, wherein the screw speed of the twin-screw extruder in the step S1.3 is 80-100rpm, and the temperature between the hopper of the extruder and the die zone is 140-160 ℃.
7. The method for preparing the degradable reinforced aluminizer of claim 5, wherein the nozzle temperature in the step S2.5 is 120 to 150 ℃ and the injection pressure is 65 to 75 MPa.
8. The method for preparing a degradable reinforced aluminized film according to claim 5, wherein the wood flour in step S2.2 is a particle crushed to 80 mesh or less using fast-growing wood as a raw material.
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