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首页> 外文期刊>Journal of Applied Polymer Science >Mesua ferrea L. seed oil based highly branched polyester/epoxy blends and their nanocomposites
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Mesua ferrea L. seed oil based highly branched polyester/epoxy blends and their nanocomposites

机译：Mesua ferrea L.种子油基高度支化的聚酯/环氧树脂混合物及其纳米复合材料

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摘要

Mesua ferrea L. seed oil based highly branched polyester and epoxy resins blends were prepared by mechanical mixing at different weight ratios. The best performing blend was used as the matrix for the preparation of nanocomposites with different dose levels of organophilic montmorillonite (OMMT) nanoclay. The prepared nanocomposites were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, and transmission electron microscopy. Data resulting from the mechanical and thermal studies of the blends and nanocomposites indicated improvements in the tensile strength and thermal stability to appreciable extents for the nanocomposites with OMMT loading. The nanocomposites were characterized as well-dispersed, partially exfoliated structures with good interfacial interactions. From the X-ray diffraction analysis, the absence of d001 reflections of the OMMT clay in the cured nanocomposites indicated the development of an exfoliated clay structure, which was confirmed by transmission electron microscopy. The homogeneous morphologies of the pure polyester/epoxy blend and clay hybrid systems were ascertained with scanning electron microscopy. The tensile strength of the 5 wt % clay-filled blend nanocomposite system was increased by 2.4 times compared to that of the pure blend resin system. The results suggest that the prepared nanocomposites have the potential to be used as active thin films for different applications.
机译：通过机械混合以不同的重量比制备Mesua ferrea L.种子油基高度支化的聚酯和环氧树脂共混物。表现最佳的掺合物用作制备具有不同剂量水平的亲有机蒙脱土（OMMT）纳米粘土的纳米复合材料的基质。通过X射线衍射，扫描电子显微镜，傅立叶变换红外光谱和透射电子显微镜对制备的纳米复合材料进行表征。从共混物和纳米复合材料的机械和热学研究获得的数据表明，在OMMT负载下，纳米复合材料的拉伸强度和热稳定性得到了明显改善。纳米复合材料的特征是具有良好的界面相互作用的良好分散的，部分剥落的结构。根据X射线衍射分析，固化的纳米复合材料中OMMT粘土不存在d001反射，表明剥落的粘土结构已形成，这已通过透射电子显微镜得到了证实。用扫描电子显微镜确定纯聚酯/环氧共混物和粘土杂化体系的均匀形态。与纯共混树脂体系相比，5 wt％的粘土填充共混纳米复合材料体系的抗张强度提高了2.4倍。结果表明，制备的纳米复合材料具有用作不同应用的活性薄膜的潜力。

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