Synergistic effect of impure/pure graphene oxide and TiO2 fillers on the dielectric properties of poly (vinylidene fluoride- hexafluoropropylene) for electroadhesive high load bearing applications

IF 1.7 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

Journal of Electroceramics Pub Date : 2023-01-07 DOI:10.1007/s10832-022-00301-x

J. Deepak Rosario, R. Ranjithkumar, V. Deepthi, B. Vidhya, Rajesh Swaminathan, Sakunthala Ayyasamy, Raju Nandhakumar

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引用次数: 1

Abstract

Poly (vinylidene fluoride- hexafluoroproylene) PVDF-HFP has been employed as a host polymer because of its strong chemical resistance, mechanical and dielectric properties and low cost. However, further changes employing other polymers, nanomaterials, additives and fillers to improve the properties of the host polymers are of significant interest. TiO₂ has gained a lot of attention because of its high k dielectric and photo catalytic capabilities. Graphene oxide (GO) has received a lot of attention because of its larger mechanical strength, dielectric behavior and other qualities. Using the doctor blade coating process, varied amounts of TiO₂ and GO were successfully integrated into PVDF-HFP to form composite films. The XRD result reveals that TiO₂/GO has been successfully incorporated into the PVDF-HFP polymer matrix, while FTIR, SEM experiments have demonstrated the effectiveness of TiO₂/GO fillers on PVDF-HFP film. AC impedance spectroscopy reveals the dielectric behavior and resistivity of polymer nanocomposite film. The film has been tested for its loading bearing capacity during electroadhesion with different applied voltages. The maximum load bearing capacity based on electroadhesion has been estimated.

Graphical abstract

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非纯/纯氧化石墨烯和TiO2填料对高负荷电粘胶用聚偏氟乙烯-六氟丙烯介电性能的协同效应

聚偏氟乙烯-六氟丙烯PVDF-HFP具有较强的耐化学性、力学性能和介电性能以及较低的成本，已被用作宿主聚合物。然而，采用其他聚合物、纳米材料、添加剂和填料来改善宿主聚合物的性能的进一步变化是值得关注的。二氧化钛因其高k介电和光催化性能而受到广泛关注。氧化石墨烯(GO)因其具有较高的机械强度、介电性能等特性而受到广泛关注。利用医生刀涂层工艺，将不同数量的TiO2和GO成功地集成到PVDF-HFP中，形成复合膜。XRD结果表明TiO2/GO已成功掺入PVDF-HFP聚合物基体中，FTIR、SEM实验也证实了TiO2/GO填料在PVDF-HFP薄膜上的有效性。交流阻抗谱揭示了聚合物纳米复合膜的介电行为和电阻率。在不同的外加电压下，测试了该薄膜在电粘附过程中的承载能力。对基于电粘附的最大承载能力进行了估计。图形抽象

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来源期刊

Journal of Electroceramics 工程技术-材料科学：硅酸盐

CiteScore

2.80

自引率

5.90%

发文量

审稿时长

5.7 months

期刊介绍： While ceramics have traditionally been admired for their mechanical, chemical and thermal stability, their unique electrical, optical and magnetic properties have become of increasing importance in many key technologies including communications, energy conversion and storage, electronics and automation. Electroceramics benefit greatly from their versatility in properties including: -insulating to metallic and fast ion conductivity -piezo-, ferro-, and pyro-electricity -electro- and nonlinear optical properties -feromagnetism. When combined with thermal, mechanical, and chemical stability, these properties often render them the materials of choice. The Journal of Electroceramics is dedicated to providing a forum of discussion cutting across issues in electrical, optical, and magnetic ceramics. Driven by the need for miniaturization, cost, and enhanced functionality, the field of electroceramics is growing rapidly in many new directions. The Journal encourages discussions of resultant trends concerning silicon-electroceramic integration, nanotechnology, ceramic-polymer composites, grain boundary and defect engineering, etc.