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Unformatted text preview: et al. 2003). Silica nanoparticle has been extensively investigated for its potential to improve various properties of polymers. Storage modulus of polyvinyl acetate (PVAc) was found to increase after the incorporation of nanosilica (Sternstein and Zhu 2002). Since one of the critical motivations for the addition of the silica particles is to enhance the mechanical properties, the improvement of mechanical properties of polymer nanocomposites is most concerned. (Zou, et al.2008). With the presence of untreated silica nanoparticle in PP matrix, tensile strength, Youngs modulus and toughness of the polymer nanocomposites increased apparently (Rong, et al. 2001). Other mechanical properties such as impact strength and elongation at break of the polyamide 6/ modified silica nanocomposites prepared by in situ polymerization showed a tendency to increase and then decrease with...
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This note was uploaded on 08/18/2011 for the course MATSE 447 taught by Professor Colby,r during the Spring '08 term at Pennsylvania State University, University Park.
- Spring '08