Hardness and microstructure of cockle shell powder filled recycled polyethyelene-terephthalate/polycarbonate blends

Mahmod, Amirul Rasyid (2017) Hardness and microstructure of cockle shell powder filled recycled polyethyelene-terephthalate/polycarbonate blends. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The aim of this study is to evaluate the hardness property and study the morphology of cockle shell powder (CSP) filled recycled polyethylene-terephthalate (PET)/polycarbonate (PC) blends. Firstly, all three materials were crushed into powder and pellet sizes before going into internal mixer for melt mixing and compounding process which will finally be pressed in the hot press mould. The hardness property of the composite was measured using Vickers Hardness Tester. The morphology of the composite was observed using OM and SEM to determine the failure behavior that occurred. The addition of 5 wt.% CSP showed increase in HV hardness value by 9.48 %. It was observed that an increase in composition of CSP increased the HV hardness value while decreasing the amount of porosity. From the SEM micrograph obtained, failures were caused by brittle properties of the composite with the abundant number of porosity.

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