This work was conducted to investigate the interactive effect of carbon nanotubes (CNTs) and montmorillonite (MMT) on the mechanical–physical properties of the polyvinyl alcohol (PVOH) nanocomposites. The increasing of CNTs amounts from 0.5 phr to 1 phr has gradually increased tensile strength and Young's modulus of all PVOH/MMT blends due to good interaction effect between MMT and CNTs with PVOH matrix especially for 2 phr MMT added PVOH blends. Besides, the addition of low CNTs amounts (≤1 phr) in PVOH matrix has significantly weakened the hydrogen bonding polymer matrix of all PVOH/MMT blends as evaluated in FTIR analysis. This is attributed to the good of dispersion of low amounts of CNTs could disturb the hydrogen bonding between PVOH molecules and thus induced the strength of OH stretching in PVOH matrix. However, higher amounts of CNTs (≥1.5 phr) have significantly increased hydrogen bonding in PVOH matrix due to the agglomeration of higher amounts of CNTs particles in PVOH matrix as observed in Fourier transform infrared spectroscopy and scanning electron microscopy analysis. From X‐ray diffraction and transmission electron microscopy observation, the MMT particles were found to effectively exfoliate in PVOH matrix of 2 phr MMT (low amounts) added PVOH/MMT/MCNTs composites, indicates that low MMT amounts could improve the interaction effect between PVOH matrix and CNTs particles. In conclusion, the incorporation of lower amounts of CNTs has effectively improved on the mechanical and physical properties of all PVOH and PVOH/MMT blends. J. VINYL ADDIT. TECHNOL., 26:77–89, 2020. © 2019 Society of Plastics Engineers

中文翻译：

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碳纳米管与蒙脱石增强聚乙烯醇复合体系的相互作用

进行这项工作以研究碳纳米管（CNT）和蒙脱石（MMT）对聚乙烯醇（PVOH）纳米复合材料的机械物理性能的相互作用。由于MMT和CNT与PVOH基质之间的良好相互作用，尤其是对于2 phr MMT添加的PVOH混合物，CNT含量从0.5 phr增加到1 phr逐渐提高了所有PVOH / MMT混合物的拉伸强度和杨氏模量。此外，在FTIR分析中评估，在PVOH基体中添加少量CNT（≤1 phr）会大大削弱所有PVOH / MMT共混物的氢键聚合物基体。这归因于少量CNT的分散性好，可能会扰乱PVOH分子之间的氢键，从而引起O的强度。H在PVOH基质中拉伸。然而，由于在傅立叶变换红外光谱法和扫描电子显微镜分析中观察到，由于较高数量的CNTs颗粒在PVOH基质中的团聚，因此较高数量的CNT（≥1.5phr）已大大增强了PVOH基质中的氢键。通过X射线衍射和透射电镜观察，发现MMT颗粒在2 phr MMT（少量）添加的PVOH / MMT / MCNTs复合材料的PVOH基质中有效剥落，表明低MMT量可改善PVOH之间的相互作用基质和CNTs颗粒。总之，掺入较少量的CNT有效改善了所有PVOH和PVOH / MMT共混物的机械和物理性能。J.乙烯基添加物。TECHNOL。，26：77–89，2020.©2019塑料工程师协会