engleski

Properties of biocomposites from waste seashells and PMMA

The paper presents the preparation of biocomposites from waste seashells as reinforcement and poly(methyl methacrylate) as matrix. The used seashells belong to the snow- white Bahamian species of tiger lucine (Codakia orbicularis) from the Island of Coco Cay. Seashells were grinded and homogenized with PMMA powder, with the seashell powder content ranging between 2 and 14 wt. %, and finally hot pressed. Morphology of prepared composites was analyzed by scanning electron microscopy (SEM), and it was determined that the particle distribution was homogenous with no agglomeration. Mechanical properties (microhardness, compressive strength, Young’s modulus) of biocomposite materials produced from different amount of waste seashells in PMMA were determined and analysed. The best overall combination of mechanical properties was achieved when 6 wt. % of seashell particles below 50 μm size were added to PMMA.

biocomposites ; seashells ; PMMA ; morphology ; mechanical properties

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