材料院学术讲座第14期

材料院第14期学术讲座将于2022年4月14日（周四)9:00-10:15 在宝安园区A栋1楼报告厅。本次讲座邀请了俄亥俄州立大学 刘一霄 博士 带来题为“Porosity Characterization of Electrospun Polycaprolactone via Laser Metrology”的报告。诚挚邀请各位老师、同学届时参加，共同学习交流！

讲座具体信息如下：

报告人：刘一霄  博   士

主持人：王珊珊  副部长

日   期：2022年4月14日

时   间：9:00-10:15

会议ID：352-834-072

Biography

Yi-xiao Liu is a Ph.D. candidate in Materials Science and Engineering at the Ohio State University. After earning a B.Eng. in Polymer Engineering at South China University of Technology, he joined the research group under Professor John Lannutti to study electrospinning. His research focuses on the quantification and modeling of microstructural heterogeneities found within electrospun structures.  

Abstract

Electrospinning is an electrohydrodynamic process generating polymeric nanofibers having immense technological benefits in biomedical, energy, and filtration applications. However, the microstructural heterogeneity inherent to electrospun structures has led to unreliable performance, fundamentally limiting the potential of this technology. To address this, we developed a novel technique that ‘maps’ the porosity gradients in electrospun deposits that reflect this heterogeneity. Dimensional profiles of as-spun depositions, and the same depositions post-sintering are obtained via laser metrology. Porosity distributions are then inferred from the difference between both profiles.