Boron nitride nanosheets/epoxy nanocomposites with high thermal conductivity and high dielectric constant for energy storage applications

IF 2.6 4区化学 Q3 POLYMER SCIENCE

Journal of Polymer Research Pub Date : 2024-10-01 DOI:10.1007/s10965-024-04142-w

Brij Mohan Bharti, Kartikeya Dixit, Niraj Sinha

{"title":"Boron nitride nanosheets/epoxy nanocomposites with high thermal conductivity and high dielectric constant for energy storage applications","authors":"Brij Mohan Bharti, Kartikeya Dixit, Niraj Sinha","doi":"10.1007/s10965-024-04142-w","DOIUrl":null,"url":null,"abstract":"<div><p>Owing to their ability to provide thermal conduction as well as electrical insulation properties that are required for modern electronic devices and electrical systems, nano-fillers incorporated epoxy composites are being widely investigated. In this study, epoxy composites have been reinforced with boron nitride nanosheets (BNNSs) to achieve enhanced thermal conductivity and dielectric properties. Further, their change as a function of BNNSs concentration (weight %) has been investigated. BNNSs are synthesized using the bottom-up approach, while the nanocomposites of epoxy and BNNSs are fabricated with the help of a process involving stirring and ultrasonication. The results reveal that the incorporation of BNNSs leads to enhancement of thermal conductivity of the nanocomposites and it increases with an increase in the loading of BNNSs. The increase in thermal conductivity is 1.93 W/mK with 15 weight % of BNNSs, that is ~ 865% improvement over the pure epoxy. Also, an approximately 123% increase in dielectric constant has been observed. These results demonstrate the potential of BNNSs as nano-fillers in preparing epoxy nanocomposites with better thermal management and energy storage capacity.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"31 10","pages":""},"PeriodicalIF":2.6000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Polymer Research","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10965-024-04142-w","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

Abstract

Owing to their ability to provide thermal conduction as well as electrical insulation properties that are required for modern electronic devices and electrical systems, nano-fillers incorporated epoxy composites are being widely investigated. In this study, epoxy composites have been reinforced with boron nitride nanosheets (BNNSs) to achieve enhanced thermal conductivity and dielectric properties. Further, their change as a function of BNNSs concentration (weight %) has been investigated. BNNSs are synthesized using the bottom-up approach, while the nanocomposites of epoxy and BNNSs are fabricated with the help of a process involving stirring and ultrasonication. The results reveal that the incorporation of BNNSs leads to enhancement of thermal conductivity of the nanocomposites and it increases with an increase in the loading of BNNSs. The increase in thermal conductivity is 1.93 W/mK with 15 weight % of BNNSs, that is ~ 865% improvement over the pure epoxy. Also, an approximately 123% increase in dielectric constant has been observed. These results demonstrate the potential of BNNSs as nano-fillers in preparing epoxy nanocomposites with better thermal management and energy storage capacity.

Graphical Abstract

查看原文本刊更多论文

具有高热导率和高介电常数的氮化硼纳米片/环氧纳米复合材料在储能应用中的应用

由于纳米填料具有现代电子设备和电气系统所需的热传导和电绝缘性能，因此人们正在广泛研究添加了纳米填料的环氧树脂复合材料。本研究采用氮化硼纳米片（BNNSs）增强环氧树脂复合材料，以提高其导热性和介电性能。此外，还研究了它们随 BNNSs 浓度（重量百分比）而发生的变化。BNNSs 是采用自下而上的方法合成的，而环氧树脂和 BNNSs 的纳米复合材料则是在搅拌和超声处理过程的帮助下制成的。结果表明，BNNSs 的加入提高了纳米复合材料的热导率，而且随着 BNNSs 负载量的增加，热导率也随之增加。当 BNNSs 的重量百分比为 15 时，导热系数提高了 1.93 W/mK，比纯环氧树脂提高了约 865%。此外，还观察到介电常数增加了约 123%。这些结果证明了 BNNSs 作为纳米填料在制备具有更好热管理和储能能力的环氧纳米复合材料方面的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Polymer Research 化学-高分子科学

CiteScore

4.70

自引率

7.10%

发文量

472

审稿时长

3.6 months

期刊介绍： Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including: polymer synthesis; polymer reactions; polymerization kinetics; polymer physics; morphology; structure-property relationships; polymer analysis and characterization; physical and mechanical properties; electrical and optical properties; polymer processing and rheology; application of polymers; supramolecular science of polymers; polymer composites.