Effect of Chemical Composition of BIMS on the Morphology of its Blends with BR. Part 2. Blends with Carbon Black

摘要

Phase morphologies and carbon black (CB) filler phase distribution in BIMS/BR blends were evaluated using AFM and SEM. CB was pre-compounded in either BIMS or BR prior to mixing. Blends of CB-precompounded BR (BR/CB) and neat BIMS exhibit coarse morphologies due to a large viscosity mismatch. On the other hand, finer morphologies were observed in blends of BIMS/CB and neat BR where viscosities had a better match. Furthermore, it was found that CB filler size has a larger effect on blend morphology than does viscosity matching. It is suggested that finer CB particles may act as compatibilizers for BIMS/BR blends.