Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5357298 | Applied Surface Science | 2010 | 5 Pages |
Abstract
In this paper, based on scanning electron microscope (SEM), the fracture morphology of poly(ethylene-co-vinyl acetate)/carbon black (EVA/CB) conductive composite with various cross-linkers 2,4-di(2-phenylisopropyl) phenol (DCP) contents were analysed by multifractal analysis. The relationship among the multifractal spectrum, cross-linker DCP content, the fracture morphology, fracture process and some mechanical property were discussed. The results showed that the larger the width Îα (Îα = αmax â αmin) of the multifractal spectra f(α), the more nonuniform the fracture surface morphology, in other words, the more the roughness. Moreover, the width Îα (Îα = αmax â αmin) of the multifractal spectra f(α) is the result of competition between ductile fracture and brittle fracture. Also, some mechanical property will correspondingly change when various cross-linker DCP contents were added. Multifractal analysis showed that the spectrum width Îα (Îα = αmax â αmin) of the multifractal spectra f(α) could be used to characterize the surface morphology and mechanical property of EVA/CB conductive composite, quantitatively.
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Authors
Yong-Hai Zhang, Bao-Feng Bai, Jing-Bo Chen, Chang-Yu Shen, Jian-Qiang Li,