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Multifractal analysis of fracture morphology of poly(ethylene-co-vinyl acetate)/carbon black conductive composite

机译：聚乙烯-乙酸乙烯酯/炭黑导电复合材料断裂形态的多重分形分析

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摘要

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 Δα (Δα=α_(max) -α_(min)) of the multifractal spectra f(α), the more nonuniform the fracture surface morphology, in other words, the more the roughness. Moreover, the width Δα (Δα=α_(max)-α_(min)) 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 Δα (Δα = a_(max) -α_(min)) of the multifractal spectra f(a) could be used to characterize the surface morphology and mechanical property of EVA/CB conductive composite, quantitatively.
机译：基于扫描电子显微镜（SEM），研究了具有各种交联剂2,4-二（2-苯基异丙基）的聚（乙烯-乙酸乙烯酯）/炭黑（EVA / CB）导电复合材料的断裂形态通过分形分析法分析苯酚（DCP）的含量。讨论了多重分形谱，交联剂DCP含量，断裂形态，断裂过程和某些力学性能之间的关系。结果表明，多重分形谱f（α）的宽度Δα（Δα=α_（max）-α_（min））越大，断裂表面形态越不均匀，换言之，粗糙度越大。此外，多重分形谱f（α）的宽度Δα（Δα＝α_（max）-α_（min））是延性断裂与脆性断裂之间竞争的结果。另外，当添加各种交联剂DCP含量时，一些机械性能将相应地改变。多重分形分析表明，多重分形光谱f（a）的光谱宽度Δα（Δα= a_（max）-α_（min））可用于定量表征EVA / CB导电复合材料的表面形态和力学性能。

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  • 来源
    《Applied Surface Science》 |2010年第23期|P.7151-7155|共5页
  • 作者

    Yong-Hai Zhang; Bao-Feng Bai; Jing-Bo Chen; Chang-Yu Shen; Jian-Qiang Li;

  • 作者单位

    National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Zhengzhou 450002, China Henan Province Key Laboratory of Surface & Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, China;

    rnHenan Province Key Laboratory of Surface & Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, China;

    rnNational Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Zhengzhou 450002, China;

    rnNational Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Zhengzhou 450002, China;

    rnState Key Laboratory of Multiphase Complex System, Institute of Process Engineering Chinese Academy of Sciences, Beijing 100190, China;

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  • 正文语种 eng
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  • 关键词

    multifractal spectrum; EVA/CB conductive composite; cross-linker DCP; fracture morphology; mechanical property; gracture process;

    机译：分形光谱EVA / CB导电复合材料;交联剂DCP;断裂形态机械性能授课过程;

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