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高分子学报 2009
INFLUENCE OF SILICA NANOPARTICLES ON THE COALESCENCE OF IMMISCIBLE PDMS/PIB BLENDS UNDER LOW-RATE SHEAR FLOW
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Abstract:
The effects of hydrophobic SiO_2 nanoparticles on the real-time morphology evolution of the immiscible blend of polydimethylsiloxane(PDMS)/polyisobutylene(PIB)(90 wt%:10 wt%) were investigated under simple shear flow with an online optical-shear system.The theoretical predication indicated that SiO_2 particles were mainly trapped in the interface between two phases.It was found that the droplet size of PIB dispersed phases was determined by the content of SiO_2 nanoparticles and shear rate.The coverage of S...
