• Title/Summary/Keyword: Roll pattern

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Natural Rubber-Clay Nanocomposites by Latex Method : Morphology and Mechanical Properties (라텍스법에 의한 천연고무-클레이 나노 복합재료: 모폴로지와 기계적 물성)

  • Kim, W.H.;Kang, J.H.;Kang, B.S.;Cho, U.R.
    • Elastomers and Composites
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    • v.41 no.1
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    • pp.27-39
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    • 2006
  • In this study, modified DA-MMT filled NR/DA-MMT nanocomposites were manufactured by a latex method and a compounding method. Cure characteristics and mechanical properties of the Cloisite 15A, carbon black, Na-MMT filled NR compounds and the DA-MMT filled NR compound by a latex method were also evaluated. The filler content of all compounds was 10phr except the carbon black filled compound. Degree of intercalation and dispersion was characterized by X-ray diffraction (XRD) and transmission electron microscope (TEM). According to the XRD diffraction pattern and TEM analysis, extensive intercalation and homogeneous dispersion of the clay were obtained after the two-roll milling. Although the layer distance was increased, some parts of DA-MMT showed the layer distance of Na-MMT after vulcanization. DA-MMT filled NR compounds showed the highest ODR torques, tensile strength, modulus, and tear energy. The NR/DA-MMT nanocomposite (by a latex method) compared with a NR/DA-MMT nanocomposite (by a compounding method) was found that the improvement of the mechanical properties was mainly due to the degree of dispersion of the clay.