Data/hora: 24/06/2024 15:03:37

Biblioteca(s): | Embrapa Meio-Norte.
Data corrente: | 02/06/2021
Data da última atualização: | 02/06/2021
Autoria: | MOURA, C. V. R. de; SOUSA, D. da C.; MOURA, E. M. de; ARAUJO, E. C. E.; SITTOLIN, I. M.
Afiliação: | CARLA VERONICA RODARTE DE MOURA, UFPI; DOUGLAS DA CRUZ SOUSA, UFPI; EDMILSON MIRANDA DE MOURA, UFPI; EUGENIO CELSO EMERITO ARAUJO, CPAMN; ILZA MARIA SITTOLIN, CPAMN.
Título: | New biodegradable composites from starch and fibers of the babassu coconut.
Ano de publicação: | 2021
Fonte/Imprenta: | Polímeros, v. 31, n. 1, e2021007, 2021.
Idioma: | Inglês
Conteúdo: | 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.
Palavras-Chave: | Babassu; Composites; TPS.
Thesagro: | Amido; Babaçu; Fibra.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/223600/1/NewBiodegradableCompositesBabassu.pdf
Registro original: | Embrapa Meio-Norte (CPAMN)
Exemplares: | CPAMN - (33121-1) - UPC - AP - DD -  -  -  - DIS