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Influence of UV Radiation on the Physical-chemical and Mechanical Properties of Banana Fiber

Materials research (São Carlos, São Paulo, Brazil), 2015-12, Vol.18 (suppl 2), p.265-272 [Peer Reviewed Journal]

This work is licensed under a Creative Commons Attribution 4.0 International License. ;ISSN: 1516-1439 ;ISSN: 1980-5373 ;EISSN: 1980-5373 ;DOI: 10.1590/1516-1439.371414

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  • Title:
    Influence of UV Radiation on the Physical-chemical and Mechanical Properties of Banana Fiber
  • Author: Benedetto, Ricardo Mello Di ; Gelfuso, Maria Virginia ; Thomazini, Daniel
  • Subjects: Analysis of variance ; banana fiber ; Bananas ; composites ; Elastic modulus ; ENGINEERING, CHEMICAL ; Fibers ; Irradiation ; MATERIALS SCIENCE, MULTIDISCIPLINARY ; Mechanical properties ; METALLURGY & METALLURGICAL ENGINEERING ; Sheaths ; Tensile strength ; UV radiation
  • Is Part Of: Materials research (São Carlos, São Paulo, Brazil), 2015-12, Vol.18 (suppl 2), p.265-272
  • Description: Surface treatments done in banana fibers (BFs) can generate significant superficial structural changes enabling the production of mechanically stronger composites. In this way, the objective of this study was to evaluate the physicochemical and mechanical properties of banana fibers of Prata specie from inner and outer leaf sheaths, when irradiated with UV light ([lambda] sub(max)= 400 nm) during 7 (UV7) and 15 (UV15) days. Structural and microstructural characterizations for non- and irradiated fibers were performed by, FT-IR spectroscopy and Scanning Electron Microscopy (SEM), which showed the influence of UV irradiation on BFs surface and chemical structure. The E sub(a) involved in the thermal degradation process of InNatura fiber (188.2 kJ.mol super(-1)) was obtained using Differential Thermal Analysis (DTA/TG). The results obtained from mechanical characterization showed that the UV7 fibers presented significant improvement in tensile strength (89.77 MPa) and elastic modulus (238.94 MPa) as compared to tensile strength (69.99 MPa) and elastic modulus (87.40 MPa) of InNatura fibers. Statistical analysis using two-way ANOVA has showed that there were no differences between mechanical properties of BFs from inner to outer leaf sheaths. UV radiation has proved to be a clean method for BF surface treatment, which can improve the mechanical properties of composites based on these fibers.
  • Publisher: ABM, ABC, ABPol
  • Language: English;Portuguese;Spanish
  • Identifier: ISSN: 1516-1439
    ISSN: 1980-5373
    EISSN: 1980-5373
    DOI: 10.1590/1516-1439.371414
  • Source: SciELO
    Geneva Foundation Free Medical Journals at publisher websites
    DOAJ Directory of Open Access Journals
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