Polycarbonate/ABS blends: Processability, thermal properties, and mechanical and impact behavior

摘要: PC/ABS blends, encompassing the whole composition range between PC and ABS, were prepared by a Brabender-like apparatus compression molded in sheets. The analysis of processability, confirming improved processability ABS additions, was accomplished same used for blend preparation. A DSC investigation confirmed inward Tg shift found other authors. Two very different mechanical tests performed: (a) tensile stress–strain on unnotched specimens at low deformation rate, showing decreased ductility blends with additions; (b) flexural impact (Charpy mode) sharply notched high where strong synergistic effect detected restricted (20–30% ABS). comparison experimental data Young's modulus versus Kerner's model predictions good adhesion existing domains. results interpreted hypothesis interlayer zones boundary. © 1994 John Wiley & Sons, Inc.