• Title/Summary/Keyword: poly(vinyiidene fluoride)

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Preparation and Characterization of Microporous PVdF Membrane for Li-ion Rechargeable Battery (이차전지용 미세다공성 PVdF 분리막의 제조와 물성)

  • Nam, Sang-Yong;Yu, Dae-Hyun;Jeong, Mi-Ae;Rhim, Ji-Won;Byun, Hong-Sik;Jeong, Chul-Ho;Lee, Young-Moo;Seo, Myung-Su
    • Membrane Journal
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    • v.17 no.3
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    • pp.233-243
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    • 2007
  • In this study, a separate. which is a microporous membrane based on poly(vinylidene fluoride)(PVdF) was prepared by phase inversion method. Being prepared by dissolving the PVdF in the N,N'-dimethylformamide(DMF) with mechanical stirring, the homogenous casting solution was cast onto a clean glass plate. Pore size and porosity of the membranes were controlled by changing preparation condition. The highest porosity of the membrane was 78.6%. The mechanical property of the membrane was determined by using an universal testing machine(UTM). The morphology of the membrane was investigated by scanning electron microscopy(SEM). The cross-section of the membrane shows sponge-like small micro-pores.