All-cellulose composites prepared by partial dissolving of cellulose fibers from musaceae leaf-sheath waste

Úrsula Montoya-Rojo, Catalina Álvarez-López, Piedad Gañán-Rojo

    Research output: Contribution to journalReview articlepeer-review

    3 Scopus citations

    Abstract

    Self-reinforced all-cellulose composites were produced in situ by partial dissolution in lithium chloride/N,N dimethylacetamide (LiCl/DMAc) of cellulose fibers isolated from Musaceae leaf sheaths resides. These composites show two phases, a continuous phase formed by the dissolution of fibers that transformation to cellulose II and another phase non-dissolved fibers of cellulose I, which acts as self-reinforcing as shown in SEM images. Fourier transform infrared spectroscopy (ATR-FTIR), and X-ray diffraction (XRD) analysis confirmed the coexistence of cellulose I and cellulose II polymorphs. The higher Young’s modulus (4.6 GPa) and tensile strength (95 MPa) are resulting in the optimum relationship between fibers/matrix due to enough LiCl/DMAc to form the matrix and unify fibers with a good interface and optical transparency. These results are seven and twenty-one times higher than that of C0, respectively. In addition, the use of these agro-industrial waste as a raw material in the production of all-cellulose composites offers an opportunity to obtain sustainable and environmentally friendly materials as an alternative for packaging industries.

    Original languageEnglish
    Pages (from-to)3141-3149
    Number of pages9
    JournalJournal of Composite Materials
    Volume55
    Issue number22
    DOIs
    StatePublished - Sep 2021

    Bibliographical note

    Publisher Copyright:
    © The Author(s) 2021.

    Keywords

    • LiCl/DMAc
    • Musaceae leaf-sheath waste
    • agro-industrial waste
    • all-cellulose composite
    • partial dissolution
    • self-reinforced

    Types Minciencias

    • Artículos de investigación con calidad A2 / Q2

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