In situ observation of plerosphere/polypropylene composites in the tensile test

Toughness, strength, and rigidity of the composites can be improved simultaneously by filling plerosphere particles into polypropylene (PP). The mechanism of improving the mechanical properties of the composites is studied on the basis of the energy dissipation theory. By using scanning electron mic...

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Veröffentlicht in:Journal of applied polymer science 2007-12, Vol.106 (6), p.3736-3742
Hauptverfasser: Zheng, Yanhong, Shen, Zhigang, Wang, Mingzhu, Ma, Shulin, Xing, Yushan
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container_issue 6
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container_title Journal of applied polymer science
container_volume 106
creator Zheng, Yanhong
Shen, Zhigang
Wang, Mingzhu
Ma, Shulin
Xing, Yushan
description Toughness, strength, and rigidity of the composites can be improved simultaneously by filling plerosphere particles into polypropylene (PP). The mechanism of improving the mechanical properties of the composites is studied on the basis of the energy dissipation theory. By using scanning electron microscopy (SEM), the crack initiation, propagation, and termination on the plerosphere/PP composites are investigated by in situ tensile test. Observation results show that the particles can effectively lead to a number of microcracks instead of the breaking crack. These microcracks formation consumes tremendous energy. As a result, the toughness and strength of the polymer can be improved. Results of the in situ SEM observation and analysis to the dynamic process supply effective test evidence for the toughening mechanism of the plerosphere/PP composite on the basis of the energy dissipation theory. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
doi_str_mv 10.1002/app.27073
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The mechanism of improving the mechanical properties of the composites is studied on the basis of the energy dissipation theory. By using scanning electron microscopy (SEM), the crack initiation, propagation, and termination on the plerosphere/PP composites are investigated by in situ tensile test. Observation results show that the particles can effectively lead to a number of microcracks instead of the breaking crack. These microcracks formation consumes tremendous energy. As a result, the toughness and strength of the polymer can be improved. Results of the in situ SEM observation and analysis to the dynamic process supply effective test evidence for the toughening mechanism of the plerosphere/PP composite on the basis of the energy dissipation theory. © 2007 Wiley Periodicals, Inc. 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subjects Applied sciences
Composites
energy dissipation theory
Exact sciences and technology
Forms of application and semi-finished materials
in situ SEM observation
mechanical properties
Polymer industry, paints, wood
Technology of polymers
title In situ observation of plerosphere/polypropylene composites in the tensile test
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