Abstract The hybrid type of polymer nanocomposites based on Polyvinyl alcohol (PVA)/Poly(vinyl) pyrrolidone (PVP) with tin oxide (SnO) have been prepared by simple solution casting method. Powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) have been employed to elucidate the successful incorporation of SnO nanoparticles (NPs) in the PVA/PVP blend matrix. The increase in the crystalinity of the polymer nanocomposites (PNCs) by the addition of SnO nanoparticles concentration up to 3 wt % of SnO was confirmed by the PXRD analysis. The FTIR analysis implied the presence of hydrogen bonding interaction between SnO and the PVA/PVP blend matrix. SEM results revealed that SnO nanoparticles were uniformly dispersed in the PVA/PVP blend matrix. From the dielectric properties, it had been observed that 1 wt % SnO added PNCs showed the high dielectric constant values at lower frequencies. The curves of argand plot at various temperatures were incomplete semicircles indicating the non-Debye behaviour. In modulus analysis, the height of the peak was decreased by addition of SnO nanoparticles in the polymer matrix which confirms the non-Debye nature.

中文翻译：

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PVA/PVP/SnO纳米复合材料的结构和介电行为研究

摘要 通过简单的溶液浇铸法制备了基于聚乙烯醇（PVA）/聚（乙烯基）吡咯烷酮（PVP）与氧化锡（SnO）的杂化型聚合物纳米复合材料。粉末 X 射线衍射 (XRD)、傅里叶变换红外光谱 (FTIR) 和扫描电子显微镜 (SEM) 已被用于阐明 PVA/PVP 共混基质中 SnO 纳米颗粒 (NPs) 的成功掺入。PXRD 分析证实，通过添加浓度高达 3 wt% SnO 的 SnO 纳米颗粒，聚合物纳米复合材料 (PNC) 的结晶度增加。FTIR 分析表明 SnO 和 PVA/PVP 混合基质之间存在氢键相互作用。SEM 结果表明 SnO 纳米颗粒均匀分散在 PVA/PVP 共混基质中。从介电特性来看，已经观察到，添加 1 wt% SnO 的 PNC 在较低频率下显示出高介电常数值。不同温度下的 argand 图曲线是不完整的半圆，表明非德拜行为。在模量分析中，通过在聚合物基质中添加 SnO 纳米颗粒降低了峰高，这证实了非德拜性质。