# THE CHARACTERISTICS OF POLYPROPYLENE LAYERED-SILICATE NANOCOMPOSITES

> Title: THE CHARACTERISTICS OF POLYPROPYLENE LAYERED-SILICATE NANOCOMPOSITES Page Range: p.271-279 Author(s): Suzhu Yu; Songlin Liu; Jianhong Zhao; Hong Xie; Ming Shyan Yong File size: 213K Download the pdf (subscribers only) Buy the pdf (non-subscribers) Journal: Polymers and Polymer Composites Issue Year: ppc...

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Published: 2006-03-01T00:00:00+00:00
Categories: Polymers and Polymer Composites

**Title: THE CHARACTERISTICS OF POLYPROPYLENE LAYERED-SILICATE NANOCOMPOSITES**
 Page Range: p.271-279
 Author(s): Suzhu Yu; Songlin Liu; Jianhong Zhao; Hong Xie; Ming Shyan Yong
 File size: 213K
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=ppc&JournalIssue=ppc14-3&JournalID=100285&JIP=) (subscribers only)
 ![](http://handbuy.gif) Buy the pdf (non-subscribers)
 Journal: Polymers and Polymer Composites
 Issue Year: ppc
 Volume: 14
 Issue No: No. 3

**Abstract**
 Organoclay reinforced polypropylene nanocomposites were prepared by melt intercalation using extrusion, and their structural, rheological and mechanical properties were investigated. The morphologies of the composites were observed with TEM and the linear viscoelastic and flow properties were studied as a function of temperature and organoclay concentration. An increase in the organoclay concentration from 1 to 7.5 wt% resulted in an increase in the loss and storage moduli as well as in the steady shear viscosity of nanocomposites at different temperatures, particularly at low frequencies. The steady shear viscosity of both PP and its nanocomposites exhibited Newtonian behaviour at low shear rates followed by a shear thinning region. The onset of shear thinning occurred at significantly lower shear rates. The elastic modulus of the PP nanocomposite containing 10 wt% of organoclay was increased by around 25% compared to the neat PP. 20 refs.

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