VALORIZATION OF DATE SEEDS WASTES AS REINFORCEMENT FOR STARCH-GRAFTED-POLYPROPYLENE COMPOSITES
DOI:
https://doi.org/10.4314/jfas.v14i1.8Keywords:
Date seed fillers, starch-g-polypropylene, bio-composites, mechanical properties, waste valorizationAbstract
Paper discussed the possibility of incorporation of date seed waste as fillers (DSF) into starch-g-PP matrices compared to kenaf fibers (KF with two lengths) based composites. Three starch-g-PP matrices (G906PF, G906PJ and G720PJ) were studied in parallel to a fully PP one. The investigated composites loaded to 20 wt.%, showed differences in performance related, principally, to loading type (DSF, KF) and matrix used. Results showed an improvement of tensile and impact stress at break as well as Shore D hardness of starch-g-PP composites reinforced with date seed fillers (DSF) or kenaf fibers (KF). Further, tensile, storage and loss moduli increased also with loading. Vicat softening point of either KF or DSF/starch-g-PP composites was greater with higher values for KF composites. However, thermal stability of starch-g-PP composites was better when DSF was used. The outcome of this work demonstrated that DSF is useful as promising lignocellulosic fillers in manufacturing of bio-composites.
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