Organometallic-Organic Hybrid System as Flexible Dielectric Material

S. Nasreen, M. Tefferi, M. Baczkowski, G. Sotzing, Yang Cao
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Abstract

Dielectric flexible film with high dielectric permittivity and low dielectric loss has received increased demands over the past decade due to its wide range of applicability in modern electronics like flexible circuits, hybrid vehicles, pulsed power systems. Novel Sn-polyester based organometalllic pDMTDMG polymer is processed with organic polyimide based pBTDA-HDA polymer to form a flexible free-standing film with tunable dielectric properties. Its dielectric properties were characterized by frequency domain dielectric spectroscopy and high voltage DC breakdown test. In addition, films were characterized by using Differential Scanning Calorimetry for their thermal behavior and by Wide Angle X Ray diffraction for microstructural analysis. Hybrid film with 60% pDMTDMG and 40% PI was found to have improved dielectric properties over previously synthesized and processed organic polyimide and organometallic Sn-polyester homopolymers.
有机金属-有机杂化体系作为柔性介电材料
具有高介电常数和低介电损耗的介质柔性薄膜在柔性电路、混合动力汽车、脉冲电源系统等现代电子产品中具有广泛的适用性,在过去的十年中得到了越来越多的需求。将新型的sn -聚酯基有机金属pDMTDMG聚合物与有机聚酰亚胺基pBTDA-HDA聚合物进行加工,形成具有可调介电性能的柔性独立薄膜。通过频域介电光谱和高压直流击穿试验对其介电性能进行了表征。此外,用差示扫描量热法和广角X射线衍射法对薄膜的热行为和微观结构进行了表征。与先前合成和加工的有机聚酰亚胺和有机金属sn -聚酯均聚物相比,含有60% pDMTDMG和40% PI的杂化膜具有更好的介电性能。
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