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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and Characterization of (Fe3O4/MWCNTs)/Epoxy Nanocomposites
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Synthesis and Characterization of (Fe3O4/MWCNTs)/Epoxy Nanocomposites

机译：（Fe3O4 / MWCNTs）/环氧纳米复合材料的合成与表征

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A sonochemical technique is used for in situ coating of iron oxide (Fe3O4) nanoparticles on outer surface of MWCNTs. These Fe3O4/MWCNTs were characterized using a high-resolution transmission electron microscope (HRTEM), X-ray diffraction, and thermogravimetric analysis. The as-prepared Fe3O4/MWCNTs composite nanoparticles were further used as reinforcing fillers in epoxy-based resin (Epon-828). The nanocomposites of epoxy were prepared by infusion of (0.5 and 1.0 wt %) pristine MWCNTs and Fe3O4/MWCNTs composite nanoparticles. For comparison purposes, the neat epoxy resin was also prepared in the same procedure as the nanocomposites, only without nanoparticles. The thermal, mechanical, and morphological tests were carried out for neat and nanocomposites. The compression test results show that the highest improvements in compressive modulus (38%) and strength (8%) were observed for 0.5 wt % loading of Fe3O4/MWCNTs. HRTEM results show the uniform dispersion of Fe3O4/MWCNTs nanoparticles in epoxy when compared with the dispersion of MWCNTs. These Fe3O4/MWGNTs nanoparticles-infused epoxy nanocomposite shows an increase in glass transition (T-g) temperature.
机译：声化学技术用于在MWCNT的外表面上原位涂覆氧化铁（Fe3O4）纳米粒子。这些Fe3O4 / MWCNTs使用高分辨率透射电子显微镜（HRTEM），X射线衍射和热重分析进行了表征。所制备的Fe3O4 / MWCNTs复合纳米颗粒还被用作环氧基树脂（Epon-828）中的增强填料。通过注入（0.5和1.0 wt％）原始MWCNT和Fe3O4 / MWCNTs复合纳米颗粒，制备了环氧树脂的纳米复合材料。为了比较，还以与纳米复合材料相同的步骤制备了纯环氧树脂，只是没有纳米颗粒。对纯净和纳米复合材料进行了热，机械和形态学测试。压缩试验结果表明，对于0.5wt％的Fe 3 O 4 / MWCNT，压缩模量（38％）和强度（8％）的改善最大。 HRTEM结果表明，与MWCNTs的分散相比，Fe3O4 / MWCNTs纳米粒子在环氧树脂中的分散均匀。这些掺入Fe3O4 / MWGNTs纳米粒子的环氧纳米复合材料的玻璃化转变（T-g）温度升高。

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