未辐照和γ辐照PVA/NaAlg/LiClO4聚合物薄膜的电导率和介电性能

Sensor Letters Pub Date : 2020-03-01 DOI:10.1166/sl.2020.4205

S. Suresha, B. Harish, B. Avinash, V. S. Chaturmukha, H. S. Jayanna, A. R. Lamani

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引用次数: 0

摘要

在最近的研究中ϒ-irradiation (100 kGy)主题区对PVA/NaAlg/LiClO4的电导率和介电性能的功效应(45;45;研究了10重量%)的薄膜。采用溶液浇铸法制备了聚合物复合膜，并考察了ϒ-irradiation (100 kGy)诱导下膜的个体变化情况。采用XRD、FTIR、SEM等方法对薄膜进行了表征。XRD研究表明，辐照后聚合物薄膜的结晶性质有所提高。FTIR峰分配显示ϒ-irradiated在薄膜上峰移位，改变其强度，加强氢键。辐照在聚合物薄膜之间形成交联。SEM显微图显示，ϒ-irradiation过程中去除了柔软均匀的层。对ϒ-irradiated薄膜在高频和低频区域的介电特性进行了分析，结果表明介电常数在2.7-14.6 MHz范围内没有变化，然后增加到10 MHz，之后随着频率的增加而减小。发现ϒ-irradiated聚合物薄膜的交流电导率随频率的增加而增加。

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Electrical Conductivity and Dielectric Properties of Un-Irradiated and γ-Irradiated PVA/NaAlg/LiClO4 Polymer Films

In the recent work effects of ϒ-irradiation (100 kGy) subject area on the conductivity and dielectric properties of PVA/NaAlg/LiClO4 (45; 45; 10 weight%) films have been investigated. Polymer complex films were made individually by using solution casting and the changes in the individuals can be distinguished of films induced by ϒ-irradiation (100 kGy) was examined. These films were submitted to different characterizations such as XRD, FTIR and SEM. XRD studies reveal that the nature of the crystalline is increasing for irradiated polymer films. FTIR peak assignments show ϒ-irradiated on films the peak gets shifted, modify its intensity, strengthening of hydrogen bonds. The irradiation forms a cross linking between polymer films. SEM micrograph shows that soft and uniform layer is removed during ϒ-irradiation. Dielectric studies for ϒ-irradiated films were analyzed at high and low frequency region shows in that respect is no variation in the dielectric constant and has the same answer from 2.7–14.6 MHz and then increase up to 10 MHz after this it decreases with increase in frequency. The AC conductivity of the ϒ-irradiated polymer films were found to be increased with the increment of frequency.

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来源期刊

Sensor Letters 工程技术-电化学

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.