Investigation of the deformation and failure mechanism of organo-montmorillonite filled PP-TPO nanocomposites under uniaxial tension

Byoung Ho Choi; Hoang T. Pham; Zhenwen Zhou; Alexander Chudnovsky; Shaofu Wu

doi:10.1016/j.compositesb.2012.04.017

Investigation of the deformation and failure mechanism of organo-montmorillonite filled PP-TPO nanocomposites under uniaxial tension

Byoung Ho Choi, Hoang T. Pham, Zhenwen Zhou, Alexander Chudnovsky, Shaofu Wu

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Many applications of nanocomposites based on polymeric systems have been developed for some time. However, the mechanisms of failure as well as fracture toughness of nanocomposites are yet to be completely understood. In this study, the clustering of nanoparticles, specifically, the effect of the number of clusters and their sizes on the fracture behavior of polypropylene (PP) and thermoplastic olefin (TPO) nano-composites is investigated. The effect of injection-molding flow profiles is also discussed with respect to the filler morphology and its effect on the tensile fracture toughness. Morphological analysis of the nanoparticle distribution is performed through fractographic analysis, and the contribution of nanoparticle clustering to the micromechanisms of fracture is discussed.

Original language	English
Pages (from-to)	3182-3191
Number of pages	10
Journal	Composites Part B: Engineering
Volume	43
Issue number	8
DOIs	https://doi.org/10.1016/j.compositesb.2012.04.017
Publication status	Published - 2012 Dec

Keywords

A. Polymer-matrix composites (PMCs)
B. Fracture
D. Fractography
E. Injection molding

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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abstract = "Many applications of nanocomposites based on polymeric systems have been developed for some time. However, the mechanisms of failure as well as fracture toughness of nanocomposites are yet to be completely understood. In this study, the clustering of nanoparticles, specifically, the effect of the number of clusters and their sizes on the fracture behavior of polypropylene (PP) and thermoplastic olefin (TPO) nano-composites is investigated. The effect of injection-molding flow profiles is also discussed with respect to the filler morphology and its effect on the tensile fracture toughness. Morphological analysis of the nanoparticle distribution is performed through fractographic analysis, and the contribution of nanoparticle clustering to the micromechanisms of fracture is discussed.",

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AU - Chudnovsky, Alexander

AU - Wu, Shaofu

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