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Marinho NP, Cademartori PHGD, Nisgoski S, Tanobe VODA, Klock U, Muñiz GIBD. Feasibility of ramie fibers as raw material for the isolation of nanofibrillated cellulose. Carbohydr Polym 2020; 230:115579. [PMID: 31887914 DOI: 10.1016/j.carbpol.2019.115579] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 10/19/2019] [Accepted: 11/06/2019] [Indexed: 02/09/2023]
Abstract
In this study, a strategy was adopted to enhance the use of ramie fibers as raw material for isolation of cellulose nanofibers (CNFs). Ramie pulp was produced by alkaline organosolv followed by bleaching. CNFs were produced by mechanical defibrillation, and films were fabricated via casting. Effects of number of passes in the mechanical grinding on physical and mechanical properties of CNF films were comprehensively studied. Potential of ramie fibers was proved by fabricating homogeneous nanofibers with average thickness of 8.72 nm, which led to CNF films with dense and non-porous networks, and crystallinity index of 76-78%. Tensile strength (42-82 MPa) and dynamic mechanical (9-11 GPa) performance were good only for less severe mechanical defibrillation. Lower solubility (1.85-2.43%). and activity (0.69) in water, and outstanding barrier properties against water vapor and oxygen make ramie suitable for more sustainable extraction of cellulose nanofibers and production of CNF films for diverse applications.
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Affiliation(s)
- Nelson Potenciano Marinho
- Programa de Pós-Graduação em Engenharia Florestal (PPGEF), Universidade Federal do Paraná, Curitiba 80210 170, Brazil.
| | - Pedro Henrique Gonzalez de Cademartori
- Programa de Pós-Graduação em Engenharia Florestal (PPGEF), Universidade Federal do Paraná, Curitiba 80210 170, Brazil; Departamento de Engenharia e Tecnologia Florestal (DETF), Universidade Federal do Paraná, Curitiba 80210 170, Brazil; Programa de Pós-Graduação em Engenharia e Ciência dos Materiais (PIPE), Universidade Federal do Paraná, Curitiba 81531-980, Brazil.
| | - Silvana Nisgoski
- Programa de Pós-Graduação em Engenharia Florestal (PPGEF), Universidade Federal do Paraná, Curitiba 80210 170, Brazil; Departamento de Engenharia e Tecnologia Florestal (DETF), Universidade Federal do Paraná, Curitiba 80210 170, Brazil.
| | - Valcineide Oliveira de Andrade Tanobe
- Engenharia de Bioprocessos e Biotecnologia, Universidade Federal do Paraná, Centro Politécnico, Curitiba 80050-540, Brazil; Departamento de Química, Centro Universitario de Ciencias Exactas e Ingenierías - CUCEI, Blvd. Marcelino Barragán, 1421 esq. Calzada Olimpica, Col. Olimpica, C.P.44430, Universidad de Guadalajara, Guadalajara, Jalisco-México.
| | - Umberto Klock
- Programa de Pós-Graduação em Engenharia Florestal (PPGEF), Universidade Federal do Paraná, Curitiba 80210 170, Brazil; Departamento de Engenharia e Tecnologia Florestal (DETF), Universidade Federal do Paraná, Curitiba 80210 170, Brazil.
| | - Graciela Inés Bolzon de Muñiz
- Programa de Pós-Graduação em Engenharia Florestal (PPGEF), Universidade Federal do Paraná, Curitiba 80210 170, Brazil; Departamento de Engenharia e Tecnologia Florestal (DETF), Universidade Federal do Paraná, Curitiba 80210 170, Brazil.
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