For many high performance applications, the impact of nanofiller on strength and failure, not only the retention or increase of modulus, is a key consideration in many technology insertions, such as for automotive and packaging applications. Much has been, and is being, investigated on the impact of nanoparticles on stiffness (modulus), but only recently have the effects of clays, tubes, and other nanofillers on failure of the polymer been recognized and understood. Unfortunately, our understanding of the failure initiation and the role played by nanocomposite morphology is scattered and empirical at best.
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