Morphology and toughening mechanisms in clay-modified styrene-butadiene-styrene rubber-toughened polypropylene
作者： Yanmei Li , Guang-Xue Wei , Hung-Jue Sue
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摘要: Clay-modified styrene-butadiene-styrene (SBS) rubber is utilized to toughen polypropylene (PP). The SBS found have good compatibility with clay particles. helps finely disperse particles in PP matrix. Mode-I fracture mechanisms are investigated using optical microscopy and transmission electron techniques. Rubber particle cavitation matrix shear yielding be the main toughening PP/SBS system. In case of PP/SBS/clay system, widespread cavitation, which appears facilitated by presence inclusions inside particles, takes place This, turn, leads formation a bigger yielded zone As result, an enhanced toughness observed.
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