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首页> 外文期刊>Journal of Applied Polymer Science >Electrical and mechanical properties of bismuth oxide nanowire/poly(vinyl acetate)
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Electrical and mechanical properties of bismuth oxide nanowire/poly(vinyl acetate)

机译：氧化铋纳米线/聚醋酸乙烯酯的电气和机械性能

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摘要

Poly(vinyl acetate) (PVAc) loaded bismuth oxide (Bi_2O _3) nanowires was successfully prepared at low temperature and ambient pressure. X-ray diffraction and transmission electron microscopy were used to characterize the final product. It was found that Bi_2O_3 nanowires were formed and the diameter of the rods was confined to within 8 nm. The diameter and length of formed rods was found increase by increasing the bismuth oxide concentration in the PVAc matrix. The current-voltage (I-V) characteristic curves revealed that the charge transport is mainly nonlinear due to grain boundary contribution. The complex impedance spectroscopy was confirmed that the grain boundary effect controls the charge transport mechanism through nanocomposites. The deformation behavior after preparing the nanocomposites, irrespective of Bi_2O_3 concentration, is similar to that of the unfilled elastomer, implying that the mechanism of large deformation is mainly governed by the matrix. The mechanical measurements confirmed that the bismuth oxide has rod-like shape.
机译：在低温和环境压力下成功制备了聚醋酸乙烯酯（PVAc）负载的氧化铋（Bi_2O_3）纳米线。 X射线衍射和透射电子显微镜用于表征最终产物。发现形成了Bi_2O_3纳米线，并且棒的直径被限制在8nm以内。发现形成的棒的直径和长度通过增加PVAc基质中的氧化铋浓度而增加。电流-电压（I-V）特性曲线表明，由于晶界的贡献，电荷传输主要是非线性的。复阻抗谱证实了晶界效应控制了通过纳米复合材料的电荷传输机制。不论Bi_2O_3的浓度如何，制备纳米复合材料后的变形行为均与未填充的弹性体相似，这表明大变形的机理主要由基体控制。力学测量证实氧化铋具有棒状形状。

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