Polyvinyl alcohol (PVA)/Attapulgite (ATT) nanocomposite fibers with high strength and high Young’s modulus were prepared via gel spinning. The structures and properties of PVA/ATT nanocomposite fibers were investigated with Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimeter (DSC), thermo gravimetric analysis (TGA), x-ray diffraction (XRD), Environmental scanning electron microscope (ESEM), and mechanical testing. The results showed that ATT had a great influence on the structures and properties of PVA/ATT nanocomposite fibers. The melting temperatures, crystallinities, initial decomposition temperatures and maximum decomposition temperatures of PVA/ATT nanocomposite fibers increased firstly when ATT content was increased from zero to 3 wt%, however, they were then dropped when ATT contents were 5 wt% and 7 wt%. The highest melting temperature, crystallinity, initial decomposition temperature and maximum decomposition temperature of PVA/ATT-3 were ...

中文翻译：

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凝胶纺丝法制备高强度高杨氏模量聚乙烯醇/凹凸棒石纳米复合纤维

通过凝胶纺丝制备了具有高强度和高杨氏模量的聚乙烯醇（PVA）/凹凸棒石（ATT）纳米复合纤维。利用傅立叶变换红外光谱（FT-IR），差示扫描量热仪（DSC），热重分析（TGA），X射线衍射（XRD），环境扫描电子显微镜（PDS）对PVA / ATT纳米复合纤维的结构和性能进行了研究（ ESEM）和机械测试。结果表明，ATT对PVA / ATT纳米复合纤维的结构和性能影响很大。当ATT含量从零增加到3 wt％时，PVA / ATT纳米复合纤维的熔融温度，结晶度，初始分解温度和最高分解温度首先增加，但是当ATT含量分别为5 wt％和7 wt％时，它们会下降。 。