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A ductile thermoplastic, polycarbonate, has been blended with the diglycidyl ether of bisphenol A (DGEBA) epoxy resin to increase the toughenability of the resin. Cured epoxy-polycarbonate systems showed no increase in fracture toughness relative to the neat epoxy resin. The binary blends were miscible, single-phase systems. Addition of rubber to both the epoxy and the epoxy-polycarbonate blends...
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