Abstract
AbstractIn this paper, biocomposites samples based on poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx)/cellulose microcrystalline (MCC) extracted from olive husk flour were prepared in a twin-screw extruder at loading rates of 10, 20 and 30 wt%. Morphology, thermal stability and water uptake of PHBHHx biocomposites were investigated with respect with filler content. The study revealed that adding MCC to PHBHHx reduces the thermal stability of the biocomposite samples compared with neat polymer; this is however, more pronounced at higher filler content. This is due to filler aggregates as observed by scanning electron microscopy, inducing heterogeneities and defects within the polymer matrix. Further, water uptake increases with filler content ratio. Keywordspoly(3-hydroxybutyrate-co-3-hydroxyhexanoate)Cellulose microcrystallineBiocompositesWater uptakeThermal stability
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