Polypropylene/glass fiber/nanoclay hybrid composites: morphological, thermal, dynamic mechanical and impact behaviors

Rahman, N.A. and Hassan, A. and Yahya, R. and Lafia-Araga, R.A. and Hornsby, P.R. (2012) Polypropylene/glass fiber/nanoclay hybrid composites: morphological, thermal, dynamic mechanical and impact behaviors. Journal of Reinforced Plastics and Composites, 31 (18). pp. 1247-1257. ISSN 07316844

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Abstract

Polypropylene/E-glass fiber/nanoclay were compounded with a twin-screw extruder and injection molded. Thermal, dynamic mechanical, and impact tests were carried out. Differential scanning calorimetry investigations showed that the incorporation of nanoclay into polypropylene/glass fiber composite shifted the melting temperature (T m) to higher values. The degree of crystallinity (X c) was strongly influenced by the presence of the glass fiber and nanoclay in the matrix. Dynamic mechanical analysis showed an increase in storage modulus (E�); indicating higher stiffness of the hybrid composites when compared to the glass fiber composites and the virgin matrix. From the tan δ curves, a strong influence of glass fiber and nanoclay content on the magnitude of tan δ max value was observed. Impact test showed a reduction in the critical strain energy release rate, G c for hybrid composites with higher nanoclay loading. The stress intensity factor, K c values showed insignificant effect with the presence of nanoclay and GF.

Item Type: Article
Uncontrolled Keywords: Composites fracture Mechanical characterization nanostructured materials nucleation Critical strain energy Degree of crystallinity Dynamic mechanical Fiber composite Glass fiber composites Hybrid composites Impact behavior Impact test Mechanical characterizations Nano clays Nanoclay loadings Twin screw extruders Composite materials Differential scanning calorimetry Fibers Glass fibers Nanocomposites Stiffness matrix Dynamics
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Dept of Chemistry
Depositing User: miss munirah saadom
Date Deposited: 05 Jul 2013 07:27
Last Modified: 05 Jul 2013 07:27
URI: http://eprints.um.edu.my/id/eprint/6743

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