Sinto, Jacob; Dr.George, K E(Cochin University of Science & Technology, May , 2009)
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Abstract:
The present study was undertaken to prepare nanosilica by a simple cost
effective means and to use it as a potential nanomodifier in thermoplastic matrices and to
develop useful composites. Nanosilica was prepared from sodium silicate and dilute
hydrochloric acid by polymer induced crystallization technique under controlled
conditions. The silica surface was modified by silane coupling agent to decrease the
agglomeration and thus to increase the reinforcement with polymer. The pristine
nanosilica and modified nanosilica were used to make nano-micro hybrid composites.
Short glass fibres and nylon fibres were used as microfillers. The hybrid nanocomposites
based on Polypropylene (PP) and High density poly ethylene (HOPE) are prepared. The
mechanical, thermal, crystallization and dynamic mechanical properties of the composites
are evaluated.
Description:
Dept. of Polymer Science and Rubber Technology,
Cochin University of Science and technology