离子束和银纳米粒子对柔性PVA/PANI聚合物复合膜介电性能的影响

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Plastics, Rubber and Composites Pub Date : 2021-05-19 DOI:10.1080/14658011.2021.1928998

M. M. Abdelhamied, A. Abdelreheem, A. Atta

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引用次数: 46

摘要

摘要:本文采用溶液浇铸法制备了不同浓度PANI和AgNPs的PVA/PANI/Ag柔性纳米复合膜。通过x射线衍射(XRD)、透射电子显微镜(TEM)和红外光谱对样品进行了表征，证实了纳米复合膜的成功合成。然后，用不同的氧离子束(8 × 1017、16 × 1017和24 × 1017离子/cm2)辐照PVA/10%PANI/6%Ag纳米复合膜。在100 ~ 106 Hz的频率范围内测量了辐照膜和未辐照膜的交流电导率、介电性能、电模量、复阻抗行为和能量密度效率。结果表明，这些参数随着宿主体内聚苯胺和银纳米粒子浓度的增加以及离子束辐照的增加而发生显著变化。本研究的改进将为未辐照和辐照纳米复合薄膜的电磁屏蔽和光电子应用开辟道路。

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Influence of ion beam and silver nanoparticles on dielectric properties of flexible PVA/PANI polymer composite films

ABSTRACT In this work, a solution cast technique was used to prepare flexible nanocomposite films of PVA/PANI/Ag with different concentrations of PANI and AgNPs. The samples were described by X-ray diffraction (XRD), transmission electron microscope (TEM), and infrared spectroscopy, which confirmed the successful synthesis of the nanocomposite films. After that, the PVA/10%PANI/6%Ag nanocomposite film was irradiated by different influences of the oxygen ion beam (8 × 1017, 16 × 1017, and 24 × 1017 ions/cm2). The Ac conductivity, dielectric properties, electric modulus, complex impedance behaviour, and the energy density efficiency of the non-irradiated and irradiated films were measured in the frequency range of 100–106 Hz. The results revealed significant changes in these parameters with an increase in concentrations of PANI and Ag nanoparticles inside the host and also with ion beam irradiation. The reported improvements in this study would open the road for appropriating the unirradiated and irradiated nanocomposite films for electromagnetic shielding and optoelectronic applications.

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来源期刊

Plastics, Rubber and Composites 工程技术-材料科学：复合

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

4 months

期刊介绍： Plastics, Rubber and Composites: Macromolecular Engineering provides an international forum for the publication of original, peer-reviewed research on the macromolecular engineering of polymeric and related materials and polymer matrix composites. Modern polymer processing is increasingly focused on macromolecular engineering: the manipulation of structure at the molecular scale to control properties and fitness for purpose of the final component. Intimately linked to this are the objectives of predicting properties in the context of an optimised design and of establishing robust processing routes and process control systems allowing the desired properties to be achieved reliably.