Heat Conduction in Graphene-Polymer Nanocomposite

报告时间：2019年4月22日（星期一），下午1:30 PM

报告地点：绣山工程大楼208室

报告题目：Heat Conduction in Graphene-Polymer Nanocomposite

报告人：张莺燕  澳大利亚西悉尼大学

报告摘要：Fast growing power densities of modern electronic devices demand high-performance thermal interface materials (TIMs). Owing to a superior thermal conductivity of graphene, composites with graphene fillers dispersed in polymer matrix are expected to be promising TIM candidates. However, the thermal conductivity of graphene-polymer composites is hindered by a high thermal resistance across the interfaces between graphene fillers and polymer matrix.

The presentation will share our recent works about reducing the thermal transport across the graphene-polymer interfaces by employing a variety of treatment methods. Using molecular dynamics (MD) simulations, the effectiveness of covalent functionalisation, non-covalent functionalisation, dopants, defects and acetylenic linkages in reducing the graphene-polymer interfacial thermal resistance is investigated systematically. We found that the covalent and non-covalent functionalisation techniques could considerably reduce the graphene-polymer interfacial thermal resistance and they are a useful technique to enhance the thermal conductivity of the graphene-polymer composites.

张莺燕，2000年大连理工大学学士学位，2004年和2008年新加坡国立大学硕士、博士学位，随后留校任博士后研究员。2010年加入了澳大利亚西悉尼大学任讲师，现为高级讲师（Senior Lecturer）。张博士研究方向包括：固体力学中的数值方法；基于分子力学及连续介质模型的纳米材料力学性能研究；石墨烯及其复合材料热传导的分子动力学模拟。目前已出版学术著作1部，专著4章，SCI期刊论文75篇，被引用3900次，H因子为31。

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