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Mechanical Properties of Thermoplastic Polyolefin (TPO) /Clay Nanocomposites

Published online by Cambridge University Press:  01 February 2011

Yong-Hong Ruan  and
Sie-Chin Tjong
Yong-Hong Ruan
Affiliation:
aptjong@cityu.edu.hk, City University of Hong Kong, Dept. of Physics and Materials Science, Hong Kong, N/A, People's Republic of China
Sie-Chin Tjong
Affiliation:
50008429@student.cityu.edu.hk, City University of Hong Kong, Dept. of Physics and Materials Science, Hong Kong, N/A, People's Republic of China
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Abstract

Thermoplastic polyolefin (TPO) contained 30 wt.% PP and 70 wt.% SEBS-g-MA, and its nanocomposites reinforced with 0.3 -1.5 wt.% organoclay (OMMT; Cloisite 30B) by a two-step melt mixing followed by injection molding. The microstructure and mechanical behavior of the TPO/OMMT nanocomposites were investigated. X-ray diffraction measurements revealed the absence of basal diffracting peak of OMMT in TPO/OMMT, suggesting formation of intercalated/exfoliated nanocomposites. Tensile tests showed that the stiffness, yield strength and tensile strength of TPO can be enhanced by adding low loading levels of OMMT. Thus, OMMT can reinforce TPO due to their large aspect ratios. Moreover, there was no reduction in the impact strength of the TPO/OMMT nanocomposites associated with the clay additions.

Keywords

polymercompositemorphology
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1056: Symposium HH – Nanophase and Nanocomposite Materials V , 2007 , 1056-HH03-71
Copyright
Copyright © Materials Research Society 2008

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