报告主题: Bicomponent electrospun  nanofibers and their applications

报告时间: 2016年05月06日上午8:30

报告地点: 东华大学延安路校区第二会议室

报告人及简介:  

Hak-Yong Kim  Ph.D., Professor Chonbuk National  University, South Korea

    Hak Yong Kim, a  professor of BIN Convergence Technology Department in Chonbuk  National University, South Korea. He received a B.S.  degree from the Department of Textile Engineering of Chonbuk National University  (South Korea) in 1981. He received his M.S. degree in Textile Engineering from  Seoul National University in 1983. Then he received his Ph.D. degree from same  University in 1993. From 1993 to 1998, he worked at Fiber Research Division in  Samyang Group R&D Center. He became a professor at Chonbuk  National University in 1998. He was made Director of Center for  Healthcare Technology & Development of Chonbuk  National University in 2004. Meanwhile, he was a visiting Professor  at University of Massachusetts (USA) in 2004 and King Saud University (Saudi  Arabia) in 2010, respectively.

    His  research interests center on biomaterials, polymer composites, inorganic  materials, and carbon nanofibers. His main achievements include 338 published  SCI journal papers with more than 9026 citations, H-index is 48 and 102 patents.  He also received Jang Young Shil Award of Ministry of Science and Technology  (1997), Academy Award of the Chonbuk Textile Engineering (2001), Excellence  Award of the Chonbuk Textile Engineering (2002), Best Professor Academy Award of  Chonbuk National University (2007, 2008), Medi Tex Award of Korea Fiber Society  (2013), Grand Prize of Research Achievements of Chonbuk National University  (2014) and Best Paper Award of Chonbuk National University (2008, 2012, and  2013).

报告大纲:

We report on the  preparation and characterization of core–sheath structure of composite  nanofibers by using electrospinning process. The morphology, chemical  compositions, structure and thermal properties of the resultant products were  characterized by scanning electron microscopy (SEM), energy dispersive X-ray  spectrometer (EDX), high-resolution transmission electron microscopy (HR-TEM),  Fourier transform infrared (FT-IR) spectroscopy, differential scanning  calorimetry, thermogravimetric analysis (TGA) and X-ray photoelectron  spectroscopy (XPS) techniques. The blending ratio of Core polymer and Sheath  polymer, molecular weight of polymer and the applied voltage of electrospinning  process were observed to be the key influence factors on the formation of  core–sheath nanofibers structure. Bicomponent nanofibers increases the weight  and strength than the single-component fibers. Therefore, It can be applied the  separation, sensors, catalyst, bio, electronic devices, etc to various  fields.