# DEFORMATION CHARACTERISTICS OF NANO-SILICON DIOXIDE FILLED POLYPROPYLENE COMPOSITES

> Title: DEFORMATION CHARACTERISTICS OF NANO-SILICON DIOXIDE FILLED POLYPROPYLENE COMPOSITES Page Range: p.559-562 Author(s): Wu C L; Zhang M Q; Rong M Z; Lehmann B; Friedrich K File size: 118K Download the pdf (subscribers only) Buy the pdf (non-subscribers) Journal: Polymers and Polymer...

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Published: 2003-07-01T00:00:00+00:00
Categories: Polymers and Polymer Composites

**Title: DEFORMATION CHARACTERISTICS OF NANO-SILICON DIOXIDE FILLED POLYPROPYLENE COMPOSITES**
 Page Range: p.559-562
 Author(s): Wu C L; Zhang M Q; Rong M Z; Lehmann B; Friedrich K
 File size: 118K
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=ppc&JournalIssue=ppc11-7&JournalID=100103&JIP=) (subscribers only)
 ![](http://handbuy.gif) Buy the pdf (non-subscribers)
 Journal: Polymers and Polymer Composites
 Issue Year: ppc
 Volume: 11
 Issue No: No. 7

**Abstract**
 Polypropylene was compounded with nano-silica particles which had been subjected to surface modification via irradiation graft polymerization. Improvements were found in the mechanical properties of such nanocomposites with fairly low filler content. This work reports on the deformation characteristics of the PP nanocomposites using transmission electron microscopy. It was concluded that it was due to the interfacial entanglement between the grafting polymers attached to the nanoparticles and the matrix polymer, that the grafted nano-silicon dioxide showed much greater extensibility inn the composites than the nanoparticles as-received. This was believed to be the main cause of extensive plastic drawing of the matrix polymer surrounding the treated nanoparticles, and provided the composites with a higher static ductility. 10 refs.

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