✦ LIBER ✦

Effects of processing conditions on the phase morphology of PC/ABS polymer blends

✍ Scribed by B. I. Chaudhry; E. Hage; L. A. Pessan

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 517 KB
Volume: 67
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19980228)67:9<1605::aid-app12>3.0.co;2-t

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✦ Synopsis

The phase morphology of PC/ABS blends can be significantly affected by its processing conditions. Blends prepared in a mixing chamber at different conditions show a strong influence of mixing time and temperature on its morphology. The blend morphology changes from a well-dispersed PC phase surrounded by the ABS matrix phase to a cocontinuous morphology with increase in the mixing time. Higher blending temperatures promote changes in the PC/ABS morphology, probably due to thermal degradation. The rotor speed has not shown much influence on the blend phase morphology. The cocontinuous phase morphology of the PC/ABS blends obtained after mixing for 10 min was shown to be unstable as detected by the heat treatment. A melt annealing for a few minutes showed a significant change in the morphology.

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