Journal
CELLULOSE
Volume 28, Issue 9, Pages 5477-5492Publisher
SPRINGER
DOI: 10.1007/s10570-021-03866-y
Keywords
Natural fibers; Mechanical properties; Chemical properties; Thermal analysis; Crystallinity
Funding
- Capes
- CNPq/Brazil
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The lignocellulosic fibers obtained from Yucca aloifolia L. leaves showed high cellulose content, thermal stability, and good mechanical properties, indicating their potential as fibrous reinforcement materials in polymeric matrices.
In this work lignocellulosic fibers were obtained from Yucca aloifolia L. leaves and their chemical, morphological, thermal and mechanical properties were studied. The fibers were pullout from the leaves and characterized by infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), chemical characterization, thermogravimetric analysis (TGA), single fiber tensile tests and scanning electron microscopy (SEM). The cellulose crystallinity index found was 69.43%. The fibers presented a high cellulose content, similar to 52.5%, and they are thermally stable until 193.4 degrees C. The tensile test for single fibers showed average results for the tensile strength of 800 MPa, Young's modulus of 39 GPa, and 2% strain at failure. Morphological analysis indicated the presence of a large number of parenchymal cells and not cellulosic constituents in fiber surface. These results indicated that Yucca aloifolia L. fibers have potential to application in polymeric matrices as fibrous reinforcement material. Graphic abstract
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