Cellulose nanoparticles extracted from sugarcane bagasse and their use in biodegradable recipients for improving physical properties and water barrier of the latter
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Materials Sciences and Applications
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The present work firstly aimed to obtain cellulose from sugarcane bagasse by
using alkaline methods in pulping/delignifying and, at bleaching stages, using
sodium chlorite, glacial acetic acid, and hydrogen peroxide, associated to
NaOH/KOH. The process was carried out at temperatures varying from 55˚C
to 110˚C, under magnetic stirring in various steps lasting from 2 h to 12 h.
The yields of the two cellulose extracted, SCB24-Na-I and SCB24-Na-II, were
37% and 41%, respectively, from samples of ca. 15 g of the bagasse. Secondly,
it is to extract nanoparticles from the obtained celluloses via acid hydrolysis
(with 77% H2SO4) to lately be tested as reinforcement in biodegradable packagings.
Both celluloses and their respective nanoparticles were characterized
by several techniques, among them ATR-FTIR, DSC-TGA, XRD, SEM, and
TEM. Despite that the yields of cellulose nanoparticles have been low, the
preliminary studies of their use in biodegradable films coated on biodegradable
pots were promising.
Como referenciar
BRANT, ANTONIO J.C.; NAIME, NATALIA; LUGAO, ADEMAR B.; PONCE, PATRICIA. Cellulose nanoparticles extracted from sugarcane bagasse and their use in biodegradable recipients for improving physical properties and water barrier of the latter. Materials Sciences and Applications, v. 11, n. 1, p. 81-133, 2020. DOI: 10.4236/msa.2020.111007. Disponível em: http://repositorio.ipen.br/handle/123456789/31454. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.