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Configurational approach to the enhancement of the dielectric properties and energy density of polyvinylidene fluoride-based polymer composites
Journal of Physics D: Applied Physics ( IF 3.4 ) Pub Date : 2020-06-29 , DOI: 10.1088/1361-6463/ab88e4
Ki-Hyun Kim 1 , Han-Bo Jung 1 , Ji-Ho Lim 1 , Sung-Yub Ji 1 , Doo Hyun Choi 2 , Dae-Yong Jeong 1
Affiliation  

Polyvinylidene fluoride (PVDF)-based polymers are promising dielectric materials, owing to their higher breakdown strength and energy density than conventional ceramic-based dielectric materials. Nevertheless, the energy density of the polymers is lower than expected, highlighting the need for improvement before they can be applied commercially. As one method to solve this issue, the P(VDF-HFP) copolymer and P(VDF-TrFE-CFE) terpolymer have been mixed at various compositions, because both the high breakdown strength of the copolymer and the dielectric constant of the terpolymer can be combined. Depending on the configuration of the two polymers, such as the 3–3 composite or 2–2 composite, the strength of their properties also contributes differently. From blended films of a 3–3 composite, P(VDF-TrFE-CFE) terpolymer and P(VDF-HFP) copolymer films with a 9:1 composition showed the highest energy storage capability as well as excellent dielectric properties. The remnant polarization...

中文翻译:

增强聚偏二氟乙烯基聚合物复合材料介电性能和能量密度的配置方法

基于聚偏二氟乙烯(PVDF)的聚合物是有希望的介电材料,因为它们的击穿强度和能量密度高于常规的陶瓷基介电材料。然而,聚合物的能量密度低于预期,突出了在将其商业应用之前需要进行改进的需求。作为解决该问题的一种方法,已将P(VDF-HFP)共聚物和P(VDF-TrFE-CFE)三元共聚物以各种组成混合,这是因为共聚物的高击穿强度和三元共聚物的介电常数都可以。被合并。根据这两种聚合物的构型,例如3–3复合材料或2–2复合材料,其性能强度也会有所不同。从3–3复合材料的混合薄膜中,组成为9:1的P(VDF-TrFE-CFE)三元共聚物和P(VDF-HFP)共聚物薄膜显示出最高的能量存储能力以及出色的介电性能。残留的极化...
更新日期:2020-06-30
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