Determining the dielectric constant of injection-molded polymer-matrix nanocomposites filled with barium titanate,MRS Communications

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Determining the dielectric constant of injection-molded polymer-matrix nanocomposites filled with barium titanate
MRS Communications ( IF 1.8 ) Pub Date : 2020-09-14 , DOI: 10.1557/mrc.2020.69
Daniel Brito ₁ , Guadalupe Quirarte ₁ , Joshua Morgan ₁ , Eleanor Rackoff ₁ , Michael Fernandez ₁ , Dithi Ganjam ₁ , Albert Dato ₁ , Todd C Monson ₂

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Barium titanate (BTO) is a ferroelectric perovskite with potential in energy storage applications. Previous research suggests that BTO dielectric constant increases as nanoparticle diameter decreases. This report recounts an investigation of this relationship. Injection-molded nanocomposites of 5 vol% BTO nanoparticles incorporated in a low-density polyethylene matrix were fabricated and measured. Finite-element analysis was used to model nanocomposites of all BTO sizes and the results were compared with experimental data. Both indicated a negligible relationship between BTO diameter and dielectric constant at 5 vol%. However, a path for fabricating and testing composites of 30 vol% and higher is presented here. Supplementary material The supplementary material for this article can be found at 10.1557/mrc.2020.69

中文翻译：

测定填充钛酸钡的注射成型聚合物基纳米复合材料的介电常数

钛酸钡（BTO）是一种铁电钙钛矿，在储能应用中具有潜力。先前的研究表明，BTO 介电常数随着纳米颗粒直径的减小而增加。本报告叙述了对这种关系的调查。制造并测量了掺入低密度聚乙烯基质中的 5 vol% BTO 纳米粒子的注塑纳米复合材料。使用有限元分析对所有 BTO 尺寸的纳米复合材料进行建模，并将结果与实验数据进行比较。两者都表明 BTO 直径和 5 vol% 介电常数之间的关系可以忽略不计。然而，这里介绍了一种制造和测试 30 vol% 及更高含量复合材料的路径。补充材料本文的补充材料可在 10.1557/mrc.2020.69 找到

更新日期：2020-09-14

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