普鲁兰
乙烯醇
材料科学
纳米纤维
蒙脱石
热重分析
傅里叶变换红外光谱
聚乙烯醇
热稳定性
静电纺丝
化学工程
复合材料
高分子化学
扫描电子显微镜
聚合物
化学
有机化学
多糖
工程类
作者
Md. Shahidul Islam,Jeong Hyun Yeum,Ajoy Kumar Das
标识
DOI:10.1016/j.jcis.2011.11.007
摘要
Nanofibers of the composite of pullulan (PULL), poly(vinyl alcohol) (PVA), and montmorillonite clay (MMT) were prepared using electrospinning method in aqueous solutions. Pullulan is an interesting natural polymer for many of its merits and good properties. Because of biocompatibility and non-toxicity of PVA, it could be used in numerous fields. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), X-ray diffraction (XRD), and thermal gravimetric analysis (TGA) were done to characterize the PULL/PVA/MMT nanofibers morphology and properties. XRD patterns and FTIR data demonstrated that there were good interactions between PULL and PVA caused by possibly hydrogen bonds. Moreover, XRD data and TEM images indicated that intercalated and exfoliated MMT nanoplatelets can be obtained within the PULL/PVA/MMT nanofibers depending on the PULL/PVA blend ratios. Furthermore, the thermal stability and mechanical property (tensile strength) of PULL/PVA/MMT nanofibers could be enhanced more by exfoliated MMT nanoplatelets than intercalated structures of that nanoplatelets.
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