Polycarbonate (PC) is an amorphous engineering thermoplastic material with excellent combination of properties such as good processibility, low density, high transparency and good strength. Despite its excellent physical and optical properties, the poor scratch and abrasion resistance has hindered its applications. Thus, poly(methyl methacrylate-<i>co</i>-phenyl methacrylate) (PMPA) was used to be blended with polycarbonate (PC) for ameliorating a poor scratch resistance of pure PC. The miscibility of PC/PMPA blends was confirmed by DSC, DMTA and optical measurement and the results should be concluded that PC/PMPA blends are miscible at any compositions used in this study. The effect of PMPA on the mechanical properties and scratch resistance of PC/PMPA blends were also investigated. With increasing of PMPA content, the scratch resistance of the blends was found to increase, whereas the mechanical properties such as tensile strength and tensile modulus did not changed due to the miscibility between PC and PMPA.

Preparation of polycarbonate/poly(methyl methacrylate-<i>co</i>-phenyl methacrylate) blends and their miscibility and physical properties

251st National Meeting (2016)

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Preparation of polycarbonate/poly(methyl methacrylate-co-phenyl methacrylate) blends and their miscibility and physical properties