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Styrene-butadiene rubber/halloysite nanotubes nanocomposites modified by sorbic acid

机译：山梨酸改性的苯乙烯-丁二烯橡胶/卤化物纳米管纳米复合材料

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摘要

Sorbic acid (SA) was used to improve the performance of styrene-butadiene rubber (SBR)/halloysite nanotubes (HNTs) nanocomposites by direct blending. The detailed mechanisms for the largely improved performance were studied by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), differential scanning calorimetry (DSC), porosity analysis and crosslink density determination. The strong interfacial bonding between HNTs and rubber matrix is resulted through SA intermediated linkages. SA bonds SBR and HNTs through grafting copolymerization/hydrogen bonding mechanism. Significantly improved dispersion of HNTs in virtue of the interactions between HNTs and SA was achieved. Formation of zinc disorbate (ZDS) was revealed during the vulcanization of the composites. However, in the present systems, the contribution of ZDS to the reinforcement was limited. Effects of SA content on the vulcanization behavior, morphology and mechanical properties of the nanocomposites were investigated. Promising mechanical properties of SA modified SBR/HNTs nanocomposites were obtained. The changes in vulcanization behavior, mechanical properties and morphology were correlated with the interactions between HNTs and SA and the largely improved dispersion of HNTs.
机译：山梨酸（SA）用于通过直接共混来改善苯乙烯-丁二烯橡胶（SBR）/卤化硅纳米管（HNTs）纳米复合材料的性能。通过X射线光电子能谱（XPS），X射线衍射（XRD），差示扫描量热法（DSC），孔隙率分析和交联密度测定研究了大幅提高性能的详细机理。 HNT与橡胶基体之间的牢固界面键是通过SA中间键形成的。 SA通过接枝共聚/氢键机理将SBR和HNT键合。借助于HNT和SA之间的相互作用，显着改善了HNT的分散。在复合材料的硫化过程中发现了二山梨酸锌（ZDS）的形成。但是，在当前系统中，ZDS对增强的贡献是有限的。研究了SA含量对纳米复合材料的硫化行为，形态和力学性能的影响。获得了具有前景的SA改性SBR / HNTs纳米复合材料的机械性能。硫化行为，力学性能和形态的变化与HNT和SA之间的相互作用以及HNT的分散性大大改善有关。

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  • 来源
    《Applied Surface Science》 |2009年第16期|7329-7336|共8页
  • 作者

    Baochun Guo; Feng Chen; Yanda Lei; Xiaoliang Liu; Jingjing Wan; Demin Jia;

  • 作者单位

    Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China;

    Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China;

    Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China;

    Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China;

    Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China;

    Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    styrene-butadiene rubber; halloysite nanotubes; sorbic acid; interface; dispersion; reinforcing mechanism;

    机译：丁苯橡胶埃洛石纳米管;山梨酸接口;分散;加强机制;

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