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Impact modification of PLA using biobased biodegradable PHA biopolymers.

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Title: Impact modification of PLA using biobased biodegradable PHA biopolymers.
Authors: Burzic, Ivana1 (AUTHOR) i.burzic@wood-kplus.at, Pretschuh, Claudia1 (AUTHOR) c.pretschuh@wood-kplus.at, Kaineder, Dominik1 (AUTHOR) Dominik.Kaineder@jku.at, Eder, Gerhard1 (AUTHOR) Gerhard.Eder@jku.at, Smilek, Jiří1 (AUTHOR) smilek@fch.vut.cz, Másilko, Jiří1 (AUTHOR) masilko@fch.vut.cz, Kateryna, Wöss1 (AUTHOR) k.woess@wood-kplus.at
Source: European Polymer Journal. May2019, Vol. 114, p32-38. 7p.
Subjects: Polyhydroxyalkanoates, X-ray diffraction measurement, Crystal morphology, Injection molding, Lactic acid, Copolymers
Abstract: • Improvement of the impact toughness of PLA by blending with amorphous copolymer PHAs. • Amorphous PHA copolymers were demonstrated to be very effective in improving the toughness of PLA at modest loading levels of 10–20 wt%. • An annealing procedure was used to further improve tensile and impact properties of studied PLA/PHA blends. • An outstanding impact performance of PLA/PHA blends reported in this study could be further used to expand PLA application range. This work is focused on an approach to improve the impact toughness of poly (lactic acid) (PLA) without compromising the bio-based carbon content and compostability of PLA. According to the literature, low-crystallinity and amorphous polyhydroxyalkanoates (PHA) copolymers were demonstrated to be very effective in improving the toughness of PLA at modest loading levels of 10–20 wt%. The present study includes preparation and characterization of PLA/PHA blends with two different amorphous PHA copolymers. Another strategy for improvement of the impact performance of the prepared PLA/PHA blends was applying an annealing procedure after injection molding. Crystalline morphology and crystal modification before and after the annealing process of all prepared PLA/PHA blends as well as for the virgin PLA were studied by X-ray diffraction measurements. In the present study, an outstanding impact performance was achieved in the case of PLA/PHA2 blends. [ABSTRACT FROM AUTHOR]
Copyright of European Polymer Journal is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 136135563
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Impact modification of PLA using biobased biodegradable PHA biopolymers.
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  Data: <searchLink fieldCode="AR" term="%22Burzic%2C+Ivana%22">Burzic, Ivana</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> i.burzic@wood-kplus.at</i><br /><searchLink fieldCode="AR" term="%22Pretschuh%2C+Claudia%22">Pretschuh, Claudia</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> c.pretschuh@wood-kplus.at</i><br /><searchLink fieldCode="AR" term="%22Kaineder%2C+Dominik%22">Kaineder, Dominik</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> Dominik.Kaineder@jku.at</i><br /><searchLink fieldCode="AR" term="%22Eder%2C+Gerhard%22">Eder, Gerhard</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> Gerhard.Eder@jku.at</i><br /><searchLink fieldCode="AR" term="%22Smilek%2C+Jiří%22">Smilek, Jiří</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> smilek@fch.vut.cz</i><br /><searchLink fieldCode="AR" term="%22Másilko%2C+Jiří%22">Másilko, Jiří</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> masilko@fch.vut.cz</i><br /><searchLink fieldCode="AR" term="%22Kateryna%2C+Wöss%22">Kateryna, Wöss</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> k.woess@wood-kplus.at</i>
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  Data: <searchLink fieldCode="JN" term="%22European+Polymer+Journal%22">European Polymer Journal</searchLink>. May2019, Vol. 114, p32-38. 7p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Polyhydroxyalkanoates%22">Polyhydroxyalkanoates</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction+measurement%22">X-ray diffraction measurement</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+morphology%22">Crystal morphology</searchLink><br /><searchLink fieldCode="DE" term="%22Injection+molding%22">Injection molding</searchLink><br /><searchLink fieldCode="DE" term="%22Lactic+acid%22">Lactic acid</searchLink><br /><searchLink fieldCode="DE" term="%22Copolymers%22">Copolymers</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • Improvement of the impact toughness of PLA by blending with amorphous copolymer PHAs. • Amorphous PHA copolymers were demonstrated to be very effective in improving the toughness of PLA at modest loading levels of 10–20 wt%. • An annealing procedure was used to further improve tensile and impact properties of studied PLA/PHA blends. • An outstanding impact performance of PLA/PHA blends reported in this study could be further used to expand PLA application range. This work is focused on an approach to improve the impact toughness of poly (lactic acid) (PLA) without compromising the bio-based carbon content and compostability of PLA. According to the literature, low-crystallinity and amorphous polyhydroxyalkanoates (PHA) copolymers were demonstrated to be very effective in improving the toughness of PLA at modest loading levels of 10–20 wt%. The present study includes preparation and characterization of PLA/PHA blends with two different amorphous PHA copolymers. Another strategy for improvement of the impact performance of the prepared PLA/PHA blends was applying an annealing procedure after injection molding. Crystalline morphology and crystal modification before and after the annealing process of all prepared PLA/PHA blends as well as for the virgin PLA were studied by X-ray diffraction measurements. In the present study, an outstanding impact performance was achieved in the case of PLA/PHA2 blends. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of European Polymer Journal is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.eurpolymj.2019.01.060
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 7
        StartPage: 32
    Subjects:
      – SubjectFull: Polyhydroxyalkanoates
        Type: general
      – SubjectFull: X-ray diffraction measurement
        Type: general
      – SubjectFull: Crystal morphology
        Type: general
      – SubjectFull: Injection molding
        Type: general
      – SubjectFull: Lactic acid
        Type: general
      – SubjectFull: Copolymers
        Type: general
    Titles:
      – TitleFull: Impact modification of PLA using biobased biodegradable PHA biopolymers.
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            NameFull: Burzic, Ivana
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            NameFull: Pretschuh, Claudia
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            NameFull: Kaineder, Dominik
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            NameFull: Eder, Gerhard
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            NameFull: Smilek, Jiří
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            NameFull: Másilko, Jiří
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            NameFull: Kateryna, Wöss
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          Dates:
            – D: 01
              M: 05
              Text: May2019
              Type: published
              Y: 2019
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              Value: 00143057
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              Value: 114
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            – TitleFull: European Polymer Journal
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