New biodegradable composites from starch and fibers of the babassu coconut
Abstract This work aimed to obtain thermoplastic starch composites (TPS) derived from starch and fibers of babassu coconut. The (TPS) was prepared with 40% plasticizer (glycerol). The fibers underwent chemical treatment of alkalinization and bleaching. SEM images and infrared spectra showed that wax...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Polímeros
2021-05-01
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| Series: | Polímeros |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000100406&tlng=en |
| _version_ | 1798022296440406016 |
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| author | Carla Veronica Rodarte de Moura Douglas da Cruz Sousa Edmilson Miranda de Moura Eugênio Celso Emérito de Araújo Ilza Maria Sittolin |
| author_facet | Carla Veronica Rodarte de Moura Douglas da Cruz Sousa Edmilson Miranda de Moura Eugênio Celso Emérito de Araújo Ilza Maria Sittolin |
| author_sort | Carla Veronica Rodarte de Moura |
| collection | DOAJ |
| description | Abstract This work aimed to obtain thermoplastic starch composites (TPS) derived from starch and fibers of babassu coconut. The (TPS) was prepared with 40% plasticizer (glycerol). The fibers underwent chemical treatment of alkalinization and bleaching. SEM images and infrared spectra showed that wax, lignin, and hemicellulose were removed from the fiber surface. SEM images of TPS starch showed a smooth and uniform surface, whereas images of the TPSWF composite (washed fiber) showed voids between the fiber and the TPS. This phenomenon was not observed in the SEM images of the composites TPSAF (alkalized fiber) and TPSBF (bleached fiber). The tensile strength and elastic modulus of the composites were higher than the pure TPS matrix. Concerning elongation, composites underwent less elongation than TPS. The mechanical properties found for the TPSWF and TPSAF composites do not differ. However, the mechanical properties of the TPSBF composite were better than the properties of the other composites. |
| first_indexed | 2024-04-11T17:27:36Z |
| format | Article |
| id | doaj.art-33d3e3348cfc47669a9cdfc3f5642837 |
| institution | Directory Open Access Journal |
| issn | 1678-5169 |
| language | English |
| last_indexed | 2024-04-11T17:27:36Z |
| publishDate | 2021-05-01 |
| publisher | Associação Brasileira de Polímeros |
| record_format | Article |
| series | Polímeros |
| spelling | doaj.art-33d3e3348cfc47669a9cdfc3f56428372022-12-22T04:12:15ZengAssociação Brasileira de PolímerosPolímeros1678-51692021-05-0131110.1590/0104-1428.09519New biodegradable composites from starch and fibers of the babassu coconutCarla Veronica Rodarte de Mourahttps://orcid.org/0000-0003-0998-5929Douglas da Cruz Sousahttps://orcid.org/0000-0003-4058-6387Edmilson Miranda de Mourahttps://orcid.org/0000-0002-1527-5037Eugênio Celso Emérito de Araújohttps://orcid.org/0000-0002-6429-0794Ilza Maria Sittolinhttps://orcid.org/0000-0003-0019-8152Abstract This work aimed to obtain thermoplastic starch composites (TPS) derived from starch and fibers of babassu coconut. The (TPS) was prepared with 40% plasticizer (glycerol). The fibers underwent chemical treatment of alkalinization and bleaching. SEM images and infrared spectra showed that wax, lignin, and hemicellulose were removed from the fiber surface. SEM images of TPS starch showed a smooth and uniform surface, whereas images of the TPSWF composite (washed fiber) showed voids between the fiber and the TPS. This phenomenon was not observed in the SEM images of the composites TPSAF (alkalized fiber) and TPSBF (bleached fiber). The tensile strength and elastic modulus of the composites were higher than the pure TPS matrix. Concerning elongation, composites underwent less elongation than TPS. The mechanical properties found for the TPSWF and TPSAF composites do not differ. However, the mechanical properties of the TPSBF composite were better than the properties of the other composites.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000100406&tlng=enTPSBabassucompositesfiberstarch |
| spellingShingle | Carla Veronica Rodarte de Moura Douglas da Cruz Sousa Edmilson Miranda de Moura Eugênio Celso Emérito de Araújo Ilza Maria Sittolin New biodegradable composites from starch and fibers of the babassu coconut Polímeros TPS Babassu composites fiber starch |
| title | New biodegradable composites from starch and fibers of the babassu coconut |
| title_full | New biodegradable composites from starch and fibers of the babassu coconut |
| title_fullStr | New biodegradable composites from starch and fibers of the babassu coconut |
| title_full_unstemmed | New biodegradable composites from starch and fibers of the babassu coconut |
| title_short | New biodegradable composites from starch and fibers of the babassu coconut |
| title_sort | new biodegradable composites from starch and fibers of the babassu coconut |
| topic | TPS Babassu composites fiber starch |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000100406&tlng=en |
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