Bio-based films/nanopapers from lignocellulosic wastes for production of added-value micro-/nanomaterials

dc.creatorGuimarães, Barbara Maria Ribeiro
dc.creatorScatolino, Mário Vanoli
dc.creatorMartins, Maria Alice
dc.creatorFerreira, Saulo Rocha
dc.creatorMendes, Lourival Marin
dc.creatorLima, José Tarcísio
dc.creatorGuimarães Junior, Mario
dc.creatorTonoli, Gustavo Henrique Denzin
dc.date2022-01-29T01:22:09Z
dc.date2022-01-29T01:22:09Z
dc.date2021-09-07
dc.date.accessioned2023-09-28T20:04:10Z
dc.date.available2023-09-28T20:04:10Z
dc.identifierGUIMARÃES, B. M. R. et al. Bio-based films/nanopapers from lignocellulosic wastes for production of added-value micro-/nanomaterials. Environmental Science and Pollution Research, [S.l.], v. 29, p. 8665-8683, Sept. 2021. DOI: 10.1007/s11356-021-16203-4.
dc.identifierhttps://link.springer.com/article/10.1007%2Fs11356-021-16203-4
dc.identifierhttp://repositorio.ufla.br/jspui/handle/1/49084
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9043674
dc.descriptionThe growing demand for products with lower environmental impact and the extensive applicability of cellulose nanofibrils (CNFs) have received attention due to their attractive properties. In this study, bio-based films/nanopapers were produced with CNFs from banana tree pseudostem (BTPT) wastes and Eucalyptus kraft cellulose (EKC) and were evaluated by their properties, such as mechanical strength, biodegradability, and light transmittance. The CNFs were produced by mechanical fibrillation (after 20 and 40 passages) from suspensions of BTPT (alkaline pre-treated) and EKC. Films/nanopapers were produced by casting from both suspensions with concentrations of 2% (based in dry mass of CNF). The BTPT films/nanopapers showed greater mechanical properties, with Young’s modulus and tensile strength around 2.42 GPa and 51 MPa (after 40 passages), respectively. On the other hand, the EKC samples showed lower disintegration in water after 24 h and biodegradability. The increase in the number of fibrillation cycles produced more transparent films/nanopapers and caused a significant reduction of water absorption for both raw materials. The permeability was similar for the films/nanopapers from BTPT and EKC. This study indicated that attractive mechanical properties and biodegradability, besides low cost, could be achieved by bio-based nanomaterials, with potential for being applied as emulsifying agents and special membranes, enabling more efficient utilization of agricultural wastes.
dc.languageen_US
dc.publisherSpringer
dc.rightsrestrictAccess
dc.sourceEnvironmental Science and Pollution Research
dc.subjectCellulose nanofibrils
dc.subjectAgro-industrial wastes
dc.subjectBio-based material
dc.subjectMicrofibrillated cellulose (MFC)
dc.subjectBiodegradation
dc.subjectNanocellulose
dc.titleBio-based films/nanopapers from lignocellulosic wastes for production of added-value micro-/nanomaterials
dc.typeArtigo


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