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CN102977565A - Starch-containing biodegradable barrier-property film as well as preparation method and application thereof - Google Patents

Starch-containing biodegradable barrier-property film as well as preparation method and application thereof Download PDF

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Publication number
CN102977565A
CN102977565A CN2012104846960A CN201210484696A CN102977565A CN 102977565 A CN102977565 A CN 102977565A CN 2012104846960 A CN2012104846960 A CN 2012104846960A CN 201210484696 A CN201210484696 A CN 201210484696A CN 102977565 A CN102977565 A CN 102977565A
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Prior art keywords
acid
starch
biological degradation
amyloid
barrier film
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Inventor
焦建
苑仁旭
熊凯
钟宇科
赵巍
徐依斌
曾祥斌
蔡彤旻
夏世勇
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Kingfa Science and Technology Co Ltd
Zhuhai Wantong Chemical Co Ltd
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Kingfa Science and Technology Co Ltd
Zhuhai Wantong Chemical Co Ltd
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Priority to CN2012104846960A priority Critical patent/CN102977565A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

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  • Biological Depolymerization Polymers (AREA)
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Abstract

The invention discloses a starch-containing biodegradable barrier-property film as well as a preparation method and an application thereof. The biodegradation barrier-property film is prepared from the following components in percentage by weight: 0-80% of biodegradable homopolyester, 0.80% of biodegradable copolyester, 1-30% of ethylene-vinyl alcohol copolymer, 5-60% of starch and 2-30% of polyhydric alcohol. According to the starch-containing biodegradable barrier-property film as well as the preparation method and the application thereof, the biodegradable homopolyester having a faster biodegradation speed, the biodegradable copolyester having better processing performances and the ethylene-vinyl alcohol copolymer having good barrier property are adopted and blended according to different proportions, and the film prepared from obtained composition not only has biological degradability, but also has the barrier property, can be widely applied to the packaging fields and particularly can be widely applied to the packaging fields of foodstuffs and medicines.

Description

A kind of amyloid biological degradation barrier film and its preparation method and application
Technical field
The present invention relates to a kind of amyloid biological degradation barrier film and its preparation method and application.
Background technology
General-purpose plastics is widely used in every field because of its excellent combination property, is listed as four large support material with iron and steel, timber, cement, and a year usage quantity constantly rises.General-purpose plastics such as polyethylene (PE), polypropylene (PP) and polystyrene (PS) etc. can steady in a long-termly exist at nature, and hard degradation so its discarded being difficult to afterwards recycles, has caused serious pollution to environment.Biodegradable plastic can comparatively fast be degraded under physical environment because of it becomes one of effective way that solves the plastic refuse problem of environmental pollution, thereby has caused showing great attention to of people, and biodegradable plastic is competitively developed in countries in the world.
Biodegradable plastic is a base polymer material that can finally be decomposed into carbonic acid gas and water after process certain hour span under the envrionment conditions that is fit to.This degradation process is divided into two processes usually, and molecular weight diminished after at first macromole was degraded through hydrolysis, light/oxygen, was further fallen by microbial consumption thereafter, and this quasi-microorganism may be bacterium, fungi, yeast, algae etc.The biodegradable plastic in the whole world has reached tens kinds at present, mainly contain: the equal polyester of biological degradation, such as hydroxy fatty acid (salt) polymkeric substance (PHAs), poly(lactic acid) (PLA), poly-hydroxybutyl ester (PHB), polycaprolactone (PCL), hydroxybutyl acid-hydroxypentanoic acid copolyesters (PHBV); Biodegradable Copolyester, such as poly butylene succinate (PBS), poly-(succinic acid-butanediol ester is tetramethylene adipate altogether) (PBSA) etc.; Or have the natural product of polysaccharide structures, such as thermoplastic starch (TPS), cellulose acetate etc.Although above-mentioned degradative plastics has good biodegradability, all greatly limited its large-scale application of using separately as material because of himself defective more or less.Biodegradable material is carried out blending and modifying, choose the suitable biodegradable material component of performance, regulate the proportioning between the biodegradable material component, the materials processing means of improving the consistency between the biodegradable material and taking to suit, can between each biodegradable material, learn from other's strong points to offset one's weaknesses, overcome separately self-defect, develop the various types of materials that can satisfy application requiring, this is one of study hotspot of present biodegradable material.
In recent years, biodegradable material is rapid in plastic wrapping sector application and development, the quality of biological degradation packaging material constantly promotes and output constantly increases, in order to adapt to market to the larger demand of biological degradation packaging material, the multifunction of biological degradation packaging material, barrier has particularly become an important research exploitation direction of biological degradation packaging material.Biological degradation barrier material and film thereof have the characteristic of biological degradability and resistance oxygen and water vapour.During use, can effectively keep the original mouthfeel of content, the smells such as container and the interior food of packing, prevent quality badness, prolong commodity shelf-life and quality guarantee period; After the use, compostable reduces the pollution to environment.
At present, the barrier material that is widely used in the food and medicine field is the film article with multilayered structure that conventional plastic is made, although it has good barrier property, but it can steady in a long-termly exist at occurring in nature, hard degradation, so be difficult to recycling after it is discarded, caused serious pollution to environment.And the biodegradable material that is applied to packaging field does not have barrier, can't be widely used in the food and medicine field.
Summary of the invention
The defective that does not have barrier in order to overcome existing biodegradable film, primary and foremost purpose of the present invention is to provide a kind of amyloid biological degradation barrier film, this film has barrier, simultaneously biodegradable, can be widely used in the food and medicine field, compostable after it is discarded can reduce the pollution to environment.
Another object of the present invention is to provide the preparation method of above-mentioned amyloid biological degradation barrier film.
A further object of the present invention is to provide the application of above-mentioned amyloid biological degradation barrier film.
Purpose of the present invention is achieved through the following technical solutions:
A kind of amyloid biological degradation barrier film, its raw materials comprises the composition of following mass percent:
The equal polyester of biological degradation: 0-80%
Biodegradable Copolyester: 0-80%
Ethylene-vinyl alcohol copolymer: 1-30%
Starch: 5-60%
Polyvalent alcohol: 2-30%.
Described amyloid biological degradation barrier film, degradation rate reaches more than 90% in 90 days under composting conditions; OTR oxygen transmission rate OTR≤2500ml/m 2Dbar, water vapour permeability WVTR≤150g/m 2D.
The equal polyester of described biological degradation is obtained by condensation reaction or ring-opening polymerization by hydroxy aliphatic acids monomer;
Described hydroxy aliphatic acids monomer is more than one in hydroxyalkyl acid or its cyclisation ester derivative;
The preferred carbonatoms of described hydroxy aliphatic acids monomer is 4 ~ 18 hydroxy fatty acid or in its cyclisation ester derivative more than one;
The preferred oxyacetic acid of described hydroxy aliphatic acids monomer, alpha-hydroxypropionic acid, beta-hydroxy-butanoic acid, hydroxy-butanedioic acid, 5-hydroxypentanoic acid, 3-hydroxycaproic acid, 5-hydroxycaproic acid, 6 hydroxycaproic acid, 7-hydroxyl enanthic acid, 3, more than one in 5-dihydroxyl enanthic acid, Hydroxyoctanoic acid, 5-hydroxydecanoic acid or the 5-hydroxyl dodecanoic acid;
In the preferred poly(lactic acid) of the equal polyester of described biological degradation, polyglycolic acid, poly-3-hydroxybutyrate, poly-3-hydroxypentanoic acid, poly-3-hydroxycaproic acid, polycaprolactone, poly-hydroxybutyl acid esters or the poly-valerolactone more than one.
Described Biodegradable Copolyester is obtained by polyreaction by binary acids monomer and aliphatic dihydroxy alcohol;
Described binary acids monomer is more than one in aliphatic dibasic acid and esterified derivative, aromatic acid and the esterified derivative thereof;
Described aliphatic dihydroxy alcohol, aliphatic dibasic acid and esterified derivative thereof, aromatic acid and esterified derivative thereof, its carbonatoms are 2 ~ 22;
The preferred oxalic acid of described binary acids monomer, Succinic Acid, pentanedioic acid, hexanodioic acid, nonane diacid, sebacic acid, hendecane dicarboxylic acid, terephthalic acid, phthalic acid, m-phthalic acid, in phenylene-diacetic acid or the phthalic acid more than one;
The preferred ethylene glycol of described aliphatic dihydroxy alcohol, 1,2-PD, 1,3-PD, 1,2-butyleneglycol, 1,4-butyleneglycol, 1,5-PD, 2,2-dimethyl-1,3-propanediol, the 2-ethyl-2-tertiary butyl-1, ammediol or 2,2,4-trimethylammonium-1, more than one in the 6-hexylene glycol;
The preferred polyethylene glycol succinate of described Biodegradable Copolyester, poly butylene succinate, the common adipic acid ester of poly-succinic acid-butanediol, polybutylene terephthalate are total to more than one in succinate or the common adipic acid ester of polybutylene terephthalate.
Described ethylene-vinyl alcohol copolymer, the molar content of therein ethylene unit are 5~95%, preferred 45%.
Described starch, comprise the native starch that derives from plant, such as potato starch, tapioca (flour), W-Gum, Starch rice, rye starch and wheat starch, also comprise the starch after using chemistry or physical method with the native starch modification, such as esterification starch, cationic starch, Sumstar 190 and cross-linking starch.
Described polyvalent alcohol is to use the oligomer of preferably glycerine, ethylene glycol, propylene glycol, butyleneglycol, pentanediol, hexylene glycol, hexanetriol, neopentyl glycol, tetramethylolmethane, sorbyl alcohol, Xylitol and/or polymer as softening agent.
The preparation method of above-mentioned amyloid biological degradation barrier film, be after each raw material is mixed through oven dry, stir, melt extrude with blown film after make amyloid biological degradation barrier film.
Above-mentioned amyloid biological degradation barrier film can be widely used in packaging field, particularly the food and medicine packaging field.
The present invention has following advantage and effect with respect to prior art:
The ethylene-vinyl alcohol copolymer that the present invention adopts the equal polyester of biological degradation with very fast biodegradation rate, have the Biodegradable Copolyester of better processing characteristics and have a good barrier is by the different ratios compounding, the film of resulting composition preparation not only has biological degradability but also has barrier, can be widely used in packaging field, particularly the food and medicine packaging field.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, but embodiments of the present invention are not limited to this.
Embodiment 1-9
A kind of amyloid biological degradation barrier film, its raw material see Table among the 1-3(table 1-3, and the consumption unit of raw material is mass percent), its preparation method may further comprise the steps:
(1) each raw material was dried 5 hours in 80 ℃ of baking ovens;
(2) dried each raw material is added in the high mixer, first stirring at low speed 5 minutes, high-speed stirring is 3 minutes again;
(3) material that mixes is joined in the twin screw extruder, the diameter of forcing machine is 40mm, and length-to-diameter ratio is 36:1, is provided with 9 heating zone and with vacuum pumping hardware.Extrusion is selected following operational condition:
Temperature Setting: 80/150/190/190/190/190/190/190/170 ℃
Rate of feeding: 100kg/h
Screw speed: 300rpm
Vacuum pressure: 0.4 normal atmosphere;
The forcing machine material strip was dried 2 hours for 80 ℃ in dehumidifying heat pump by after earnestly mode causes particle under water, then sent into single Screw Extrusion inflation film manufacturing machine and made the film that thickness is 25um.
Measure degraded and the barrier property of each embodiment gained film, the results are shown in Table 1-3.
The testing method of degraded and barrier property is as follows:
1. biological degradation rate: with reference to the method test of ISO14855, with the CO of material compost after 90 days 2Burst size is the degradation property index.
2. OTR oxygen transmission rate OTR: with reference to the method test of ASTM D3985.
3. water vapour permeability WVTR: with reference to the method test of ASTM D1653.
Comparative Examples 1-2
A kind of film, its raw material sees Table 1-2, and its preparation method is with embodiment 1-9.The testing method of degraded and barrier property the results are shown in Table 1-2 with embodiment 1-9.
Table 1
Figure BDA00002454681600051
Annotate: among the table 1-3, the molar content of ethylene unit is 45% in the ethylene-vinyl alcohol copolymer.
As shown in Table 1, by the resulting film of embodiment 1-3, biological degradation rate reaches more than 90% in 90 days under composting conditions, OTR oxygen transmission rate OTR≤2000ml/m 2Dbar, water vapour permeability WVTR≤100g/m 2D.Compare with Comparative Examples 1, among the embodiment 2 because of blend ethylene-vinyl alcohol copolymer (EVOH), its OTR oxygen transmission rate and water vapour permeability have had obvious lifting.
Table 2
Figure BDA00002454681600052
As shown in Table 2, by the resulting film of embodiment 4-6, biological degradation rate reaches more than 90% in 90 days under composting conditions, OTR oxygen transmission rate OTR≤2000ml/m 2Dbar, water vapour permeability WVTR≤100g/m 2D.Compare with Comparative Examples 2, among the embodiment 5 because of blend ethylene-vinyl alcohol copolymer (EVOH), its OTR oxygen transmission rate and water vapour permeability have had obvious lifting.
Table 3
Figure BDA00002454681600061
As shown in Table 3, by the resulting film of embodiment 7-9, biological degradation rate reaches more than 90% in 90 days under composting conditions, OTR oxygen transmission rate OTR≤2000ml/m 2Dbar, water vapour permeability WVTR≤100g/m 2D.
Above-described embodiment is the better embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (10)

1. amyloid biological degradation barrier film, be characterised in that: its raw materials comprises the composition of following mass percent:
The equal polyester of biological degradation: 0-80%
Biodegradable Copolyester: 0-80%
Ethylene-vinyl alcohol copolymer: 1-30%
Starch: 5-60%
Polyvalent alcohol: 2-30%;
The equal polyester of described biological degradation is obtained by condensation reaction or ring-opening polymerization by hydroxy aliphatic acids monomer;
Described Biodegradable Copolyester is obtained by polyreaction by binary acids monomer and aliphatic dihydroxy alcohol.
2. amyloid biological degradation barrier film according to claim 1 is characterized in that: described amyloid biological degradation barrier film, and degradation rate reaches more than 90% in 90 days under composting conditions; OTR oxygen transmission rate≤2500ml/m 2Dbar, water vapour permeability≤150g/m 2D.
3. amyloid biological degradation barrier film according to claim 1 is characterized in that:
Described hydroxy aliphatic acids monomer is more than one in hydroxyalkyl acid or its cyclisation ester derivative;
Described binary acids monomer is more than one in aliphatic dibasic acid and esterified derivative, aromatic acid and the esterified derivative thereof.
4. amyloid biological degradation barrier film according to claim 1 is characterized in that:
Described hydroxy aliphatic acids monomer is oxyacetic acid, alpha-hydroxypropionic acid, beta-hydroxy-butanoic acid, hydroxy-butanedioic acid, 5-hydroxypentanoic acid, 3-hydroxycaproic acid, 5-hydroxycaproic acid, 6 hydroxycaproic acid, 7-hydroxyl enanthic acid, 3, more than one in 5-dihydroxyl enanthic acid, Hydroxyoctanoic acid, 5-hydroxydecanoic acid or the 5-hydroxyl dodecanoic acid;
Described binary acids monomer is oxalic acid, Succinic Acid, pentanedioic acid, hexanodioic acid, nonane diacid, sebacic acid, hendecane dicarboxylic acid, terephthalic acid, phthalic acid, m-phthalic acid, in phenylene-diacetic acid or the phthalic acid more than one;
Described aliphatic dihydroxy alcohol is ethylene glycol, 1,2-PD, 1,3-PD, 1,2-butyleneglycol, 1,4-butyleneglycol, 1,5-PD, 2,2-dimethyl-1,3-propanediol, the 2-ethyl-2-tertiary butyl-1, ammediol or 2,2,4-trimethylammonium-1, more than one in the 6-hexylene glycol.
5. amyloid biological degradation barrier film according to claim 1 is characterized in that:
The equal polyester of described biological degradation is more than one in poly(lactic acid), polyglycolic acid, poly-3-hydroxybutyrate, poly-3-hydroxypentanoic acid, poly-3-hydroxycaproic acid, polycaprolactone, poly-hydroxybutyl acid esters or the poly-valerolactone;
Described Biodegradable Copolyester is that polyethylene glycol succinate, poly butylene succinate, the common adipic acid ester of poly-succinic acid-butanediol, the common succinate of polybutylene terephthalate or polybutylene terephthalate are total to more than one in the adipic acid ester;
Described ethylene-vinyl alcohol copolymer, therein ethylene unit molar content is 45%.
6. amyloid biological degradation barrier film according to claim 1, it is characterized in that: described starch is the native starch that derives from plant, or the starch after using chemistry or physical method with the native starch modification.
7. amyloid biological degradation barrier film according to claim 6 is characterized in that:
The described native starch that derives from plant is potato starch, tapioca (flour), W-Gum, Starch rice, rye starch or wheat starch;
Described starch after using chemistry or physical method with the native starch modification is esterification starch, cationic starch, Sumstar 190 or cross-linking starch.
8. amyloid biological degradation barrier film according to claim 1, it is characterized in that: described polyvalent alcohol is oligomer and/or the polymer of glycerine, ethylene glycol, propylene glycol, butyleneglycol, pentanediol, hexylene glycol, hexanetriol, neopentyl glycol, tetramethylolmethane, sorbyl alcohol, Xylitol.
9. the preparation method of each described amyloid biological degradation barrier film of claim 1-8 is characterized in that may further comprise the steps: after each raw material is mixed through oven dry, stir, melt extrude with blown film after make amyloid biological degradation barrier film.
10. each described amyloid biological degradation barrier film application in packaging field of claim 1-8.
CN2012104846960A 2012-11-23 2012-11-23 Starch-containing biodegradable barrier-property film as well as preparation method and application thereof Pending CN102977565A (en)

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CN103408791A (en) * 2013-08-08 2013-11-27 山东汇盈新材料科技有限公司 Method for quickly decomposing biodegradation plastic film
CN103408804A (en) * 2013-07-24 2013-11-27 吴江龙硕金属制品有限公司 Degradable plastic
CN104194289A (en) * 2014-08-25 2014-12-10 浙江渤海卫生用品有限公司 Bio-based biodegradable plastic bag material
TWI510540B (en) * 2013-02-01 2015-12-01 Tatung Co Biodegradable polyester
CN105246972A (en) * 2013-04-10 2016-01-13 生物天然包装材料研究与开发有限及两合公司 Polymer compound
CN106009063A (en) * 2016-06-24 2016-10-12 安徽德琳环保发展(集团)有限公司 Caprolactone-grafted degradable esterified starch film and preparation method thereof
CN106589852A (en) * 2016-12-15 2017-04-26 中国科学院理化技术研究所 Water degradation material with adjustable degradation period and preparation method thereof
CN107987494A (en) * 2017-12-21 2018-05-04 江苏理工学院 A kind of biodegradable polyethylene terephthalate blend and preparation method thereof
CN108586823A (en) * 2018-06-04 2018-09-28 合肥语林装饰工程有限公司 A kind of environmental protection type packing film and preparation method thereof with high barrier
CN108976484A (en) * 2018-06-08 2018-12-11 合肥华冠包装科技有限公司 A kind of high-intensitive decomposable type environmental friendly packaging box
EP3359469B1 (en) 2016-02-01 2019-04-10 Norbert Kuhl Foodcontainer impermeable to oxygen
CN110181871A (en) * 2019-05-07 2019-08-30 广东瑞远新材料有限公司 A kind of environment-friendly biodegradable composite soft tube and preparation method thereof
CN112778714A (en) * 2020-12-31 2021-05-11 江苏集萃先进高分子材料研究所有限公司 Preparation method of low-cost degradable multilayer barrier material
EP3783067B1 (en) 2019-08-21 2022-02-16 Lapp Engineering AG Polymer material

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Cited By (22)

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TWI510540B (en) * 2013-02-01 2015-12-01 Tatung Co Biodegradable polyester
US10047194B2 (en) 2013-02-01 2018-08-14 Tatung Company Biodegradable polyester
CN105246972A (en) * 2013-04-10 2016-01-13 生物天然包装材料研究与开发有限及两合公司 Polymer compound
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CN103408791A (en) * 2013-08-08 2013-11-27 山东汇盈新材料科技有限公司 Method for quickly decomposing biodegradation plastic film
CN103408791B (en) * 2013-08-08 2015-09-30 山东汇盈新材料科技有限公司 The method of fast decoupled biodegradable plastic film
CN104194289B (en) * 2014-08-25 2016-03-30 浙江渤海卫生用品有限公司 Bio-based biological decomposition plastics bag material
CN104194289A (en) * 2014-08-25 2014-12-10 浙江渤海卫生用品有限公司 Bio-based biodegradable plastic bag material
EP3597565A1 (en) 2016-02-01 2020-01-22 Martin Wassmer Oxygen-tight plastic and packaging material produced from same
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EP3359469B1 (en) 2016-02-01 2019-04-10 Norbert Kuhl Foodcontainer impermeable to oxygen
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EP3411436B1 (en) 2016-02-01 2019-09-18 Norbert Kuhl Foodcontainer impermeable to oxygen, method, use and packaging material.
CN106009063A (en) * 2016-06-24 2016-10-12 安徽德琳环保发展(集团)有限公司 Caprolactone-grafted degradable esterified starch film and preparation method thereof
CN106589852A (en) * 2016-12-15 2017-04-26 中国科学院理化技术研究所 Water degradation material with adjustable degradation period and preparation method thereof
CN107987494A (en) * 2017-12-21 2018-05-04 江苏理工学院 A kind of biodegradable polyethylene terephthalate blend and preparation method thereof
CN108586823A (en) * 2018-06-04 2018-09-28 合肥语林装饰工程有限公司 A kind of environmental protection type packing film and preparation method thereof with high barrier
CN108976484A (en) * 2018-06-08 2018-12-11 合肥华冠包装科技有限公司 A kind of high-intensitive decomposable type environmental friendly packaging box
CN110181871A (en) * 2019-05-07 2019-08-30 广东瑞远新材料有限公司 A kind of environment-friendly biodegradable composite soft tube and preparation method thereof
EP3783067B1 (en) 2019-08-21 2022-02-16 Lapp Engineering AG Polymer material
CN112778714A (en) * 2020-12-31 2021-05-11 江苏集萃先进高分子材料研究所有限公司 Preparation method of low-cost degradable multilayer barrier material

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Application publication date: 20130320