Understanding and Manipulating Thermal Transport in Polymers
讲座名称：
Understanding and Manipulating Thermal Transport in Polymers
讲座时间：
2013-05-24
讲座人：
Tengfei Lu
形式：
校区：
兴庆校区
实践学分：
讲座内容：
讲座名称：Understanding and Manipulating Thermal Transport in Polymers
讲座时间：2013-5-24 10：00~11:00:30
讲座地点：西安交通大学航天学院第二会议室
讲座人： Tengfei Luo
讲座内容：
Abstract:
Polymers, usually known as thermal insulators, can have amazing thermal transport properties depending on their morphology. In this talk, we will discuss a series of atomistic simulations of thermal transport in polymers. We will first discuss how polyethylene molecules can be re-formed into highly aligned forest through self-assembling to conduct heat across two solid substrates efficiently. The results show the promise of polyethylene in thermal interface material applications and implies the strategy of reforming polymers into thermal conductors. We will then discuss the results on Polydimethylsiloxane (PDMS) – the most widely used thermal interface polymer. The restuls suggest a strong correlation between the molecular morphology and thermal transport properties. Lastly, we will discuss our findings on the morphology-thermal conductivity dependency in polyethylene fibers, and show how we can utilize such a correlation to manipulate thermal conductivity through temperature, strain and their combination.
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