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    • Effect of water absorption on the mechanical properties of long date palm leaf fiber reinforced epoxy composites.

    Author(s) : Mahdi, E. ;  Hernández, D. R. ;  Eltai, E. o

    Editors : Pilla, S.

    Journal article; Conference paper : Journal of Biobased Materials and Bioenergy 2015 Vol.9 No.2 pp.173-181 ref.29

    Conference Title : 13th International Symposium on Bioplastics, Biocomposites and Biorefining: Moving Towards a Sustainable Bioeconomy, Guelph, Canada, 19-24 May, 2014.

    Abstract : This paper examines the effect of the first 24 hours water absorption on the mechanical propertiesmechanical propertiesSubject Category: Properties
    see more details     and morphology of the long date palm leave fiber (DPLF) and unidirectional reinforced epoxy composites. The mechanical properties that were evaluated are tensile and flexural. Laminates with 31.4% volume fraction of reinforcement was prepared using hand layout manufacturing technique. Scanning electron microscopy (SEM) was used to study the fiber morphology and fracture surfaces. The results revealed that the DPLF showed high hydrophilic behavior and reached saturation (98.4%) within 24 hours. The ultimate strength for DPLF decreased 60.7%. The coefficients of diffusivity (D) and moisture expansion (β) for unidirectional composites were estimated. The tensile/flexural results showed that water absorption decreased the specific ultimate strength and specific modulus by 14.8/14.5% and 40.1/17.8% respectively. However, it increased the specific toughness by 22.5/22.7%. The DPLF/epoxy composites showed less tendency for water absorption reaching only 3.5%. SEM examination of the dry composite after tensile showed fiber breakage, fiber pull out and fiber-matrix debonding whereas the composites after 24 hours showed fiber swelling, fiber pull out, debonding increase and matrix crack.

    ISSN : 1556-6560

    DOI : 10.1166/jbmb.2015.1508

    Record Number : 20153361826

    Publisher : American Scientific Publishers

    Location of publication : Valencia

    Country of publication : USA

    Language of text : English

    Indexing terms for this abstract:

    Descriptor(s) : fibresfibresSubject Category: Commodities and Products
    see more details    , mechanical propertiesmechanical propertiesSubject Category: Properties
    see more details    , palm leavespalm leavesSubject Category: Commodities and Products
    see more details    , water uptakewater uptakeSubject Category: Miscellaneous
    see more details

    Identifier(s) : fibersfibersSubject Category: Commodities and Products
    see more details

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