Development of Injection-Molded Polylactide Pieces with High Toughness by the Addition of Lactic Acid Oligomer and Characterization of Their Shape Memory Behavior
© 2019 by the authors.
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Format: | artículo biblioteca |
Language: | English |
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Multidisciplinary Digital Publishing Institute
2019
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Subjects: | PLA, OLA, Impact modifier, Shape memory, Packaging applications, |
Online Access: | http://hdl.handle.net/10261/197174 http://dx.doi.org/10.13039/501100011033 |
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dig-iata-es-10261-1971742021-12-27T16:42:41Z Development of Injection-Molded Polylactide Pieces with High Toughness by the Addition of Lactic Acid Oligomer and Characterization of Their Shape Memory Behavior Lascano, Diego Moraga, Giovanni Ivorra-Martinez, Juan Rojas-Lema, Sandra Torres Giner, Sergio Balart, Rafael Boronat, Teodomiro Quiles-Carrillo, Luis Ministerio de Ciencia, Innovación y Universidades (España) Agencia Estatal de Investigación (España) PLA OLA Impact modifier Shape memory Packaging applications © 2019 by the authors. This work reports the effect of the addition of an oligomer of lactic acid (OLA), in the 5–20 wt% range, on the processing and properties of polylactide (PLA) pieces prepared by injection molding. The obtained results suggested that the here-tested OLA mainly performs as an impact modifier for PLA, showing a percentage increase in the impact strength of approximately 171% for the injection-molded pieces containing 15 wt% OLA. A slight plasticization was observed by the decrease of the glass transition temperature (Tg) of PLA of up to 12.5 °C. The OLA addition also promoted a reduction of the cold crystallization temperature (Tcc) of more than 10 °C due to an increased motion of the biopolymer chains and the potential nucleating effect of the short oligomer chains. Moreover, the shape memory behavior of the PLA samples was characterized by flexural tests with different deformation angles, that is, 15°, 30°, 60°, and 90°. The obtained results confirmed the extraordinary effect of OLA on the shape memory recovery (Rr) of PLA, which increased linearly as the OLA loading increased. In particular, the OLA-containing PLA samples were able to successfully recover over 95% of their original shape for low deformation angles, while they still reached nearly 70% of recovery for the highest angles. Therefore, the present OLA can be successfully used as a novel additive to improve the toughness and shape memory behavior of compostable packaging articles based on PLA in the new frame of the Circular Economy. This research work was funded by the Spanish Ministry of Science, Innovation, and Universities (MICIU) project numbers RTI2018-097249-B-C21 and MAT2017-84909-C2-2-R. Peer reviewed 2019-12-20T14:12:06Z 2019-12-20T14:12:06Z 2019 2019-12-20T14:12:06Z artículo http://purl.org/coar/resource_type/c_6501 Polymers 11(12): 2099 (2019) http://hdl.handle.net/10261/197174 10.3390/polym11122099 2073-4360 http://dx.doi.org/10.13039/501100011033 31847359 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-097249-B-C21 RTI2018-097249-B-C21/AEI/10.13039/501100011033 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/MAT2017-84909-C2-2-R MAT2017-84909-C2-2-R/AEI/10.13039/501100011033 Publisher’s version https://doi.org/10.3390/polym11122099 Sí open Multidisciplinary Digital Publishing Institute |
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PLA OLA Impact modifier Shape memory Packaging applications PLA OLA Impact modifier Shape memory Packaging applications |
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PLA OLA Impact modifier Shape memory Packaging applications PLA OLA Impact modifier Shape memory Packaging applications Lascano, Diego Moraga, Giovanni Ivorra-Martinez, Juan Rojas-Lema, Sandra Torres Giner, Sergio Balart, Rafael Boronat, Teodomiro Quiles-Carrillo, Luis Development of Injection-Molded Polylactide Pieces with High Toughness by the Addition of Lactic Acid Oligomer and Characterization of Their Shape Memory Behavior |
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© 2019 by the authors. |
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Ministerio de Ciencia, Innovación y Universidades (España) |
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Ministerio de Ciencia, Innovación y Universidades (España) Lascano, Diego Moraga, Giovanni Ivorra-Martinez, Juan Rojas-Lema, Sandra Torres Giner, Sergio Balart, Rafael Boronat, Teodomiro Quiles-Carrillo, Luis |
format |
artículo |
topic_facet |
PLA OLA Impact modifier Shape memory Packaging applications |
author |
Lascano, Diego Moraga, Giovanni Ivorra-Martinez, Juan Rojas-Lema, Sandra Torres Giner, Sergio Balart, Rafael Boronat, Teodomiro Quiles-Carrillo, Luis |
author_sort |
Lascano, Diego |
title |
Development of Injection-Molded Polylactide Pieces with High Toughness by the Addition of Lactic Acid Oligomer and Characterization of Their Shape Memory Behavior |
title_short |
Development of Injection-Molded Polylactide Pieces with High Toughness by the Addition of Lactic Acid Oligomer and Characterization of Their Shape Memory Behavior |
title_full |
Development of Injection-Molded Polylactide Pieces with High Toughness by the Addition of Lactic Acid Oligomer and Characterization of Their Shape Memory Behavior |
title_fullStr |
Development of Injection-Molded Polylactide Pieces with High Toughness by the Addition of Lactic Acid Oligomer and Characterization of Their Shape Memory Behavior |
title_full_unstemmed |
Development of Injection-Molded Polylactide Pieces with High Toughness by the Addition of Lactic Acid Oligomer and Characterization of Their Shape Memory Behavior |
title_sort |
development of injection-molded polylactide pieces with high toughness by the addition of lactic acid oligomer and characterization of their shape memory behavior |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2019 |
url |
http://hdl.handle.net/10261/197174 http://dx.doi.org/10.13039/501100011033 |
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