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首页> 外文期刊>Research letters in nanotechnology >Development of SBR-Nanoclay Composites with Epoxidized Natural Rubber as Compatibilizer
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Development of SBR-Nanoclay Composites with Epoxidized Natural Rubber as Compatibilizer

机译：环氧天然橡胶相容剂SBR-纳米粘土复合材料的研制

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摘要

The significant factor that determines the improvement of properties in rubber by the incorporation of nanoclay is its distribution in the rubber matrix. The simple mixing of nonpolar rubber and organically modified nanoclay will not contribute for the good dispersion of nanofiller in the rubbery matrix. Hence a polar rubber like epoxidized natural rubber (ENR) can be used as a compatibilizer in order to obtain a better dispersion of the nanoclay in the matrix polymer. Epoxidized natural rubber and organically modified nanoclay composites (EC) were prepared by solution mixing. The nanoclay employed in this study is Cloisite 20A. The obtained nanocomposites were incorporated in styrene butadiene-rubber (SBR) compounds with sulphur as a curing agent. The morphology observed through X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HR-TEM) shows that the nanoclay is highly intercalated in ENR, and further incorporation of EC in SBR matrix leads to partial exfoliation of the nanoclay. Dynamic mechanical thermal analysis showed an increase in storage modulus and lesser damping characteristics for the compounds containing EC loading in SBR matrix. In addition, these compounds showed improvement in the mechanical properties.
机译：决定通过掺入纳米粘土来改善橡胶性能的重要因素是其在橡胶基质中的分布。非极性橡胶和有机改性的纳米粘土的简单混合不会有助于纳米填料在橡胶基质中的良好分散。因此，极性橡胶如环氧化天然橡胶（ENR）可用作相容剂，以使纳米粘土更好地分散在基体聚合物中。通过溶液混合制备环氧天然橡胶和有机改性的纳米粘土复合材料（EC）。在这项研究中使用的纳米粘土是Cloisite 20A。将获得的纳米复合材料掺入以硫为固化剂的丁苯橡胶（SBR）化合物中。通过X射线衍射（XRD）和高分辨率透射电子显微镜（HR-TEM）观察到的形态表明，纳米粘土高度嵌入ENR中，EC进一步掺入SBR基质中会导致纳米粘土部分剥落。动态机械热分析表明，SBR基体中含有EC的化合物的储能模量增加，阻尼特性降低。另外，这些化合物显示出机械性能的改善。

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  • 来源
    《Research letters in nanotechnology》 |2009年第2009期|P.3.1-3.5|共5页
  • 作者

    R. Rajasekar; Gert Heinrich; Amit Das; Chapal Kumar Das;

  • 作者单位

    Materials Science Centre, Indian Institute of Technology, Kharagpur 721 302, India;

    Department of Composite, Leibniz-Institute of Polymer Research Dresden, Hohe Strafie 6, 01069 Dresden, Germany;

    Department of Composite, Leibniz-Institute of Polymer Research Dresden, Hohe Strafie 6, 01069 Dresden, Germany;

    Materials Science Centre, Indian Institute of Technology, Kharagpur 721 302, India;

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