报告人简介：Hak-Yong Kim Ph.D., Professor

Chonbuk National University, South Korea

Hak YongKim, a professor of BIN Convergence Technology Department in Chonbuk National University, South Korea. He received a B.S. degree from the Departmentof Textile Engineering of Chonbuk National University (South Korea) in 1981. Hereceived his M.S. degree in Textile Engineering from Seoul National Universityin 1983. Then he received his Ph.D. degree from same University in 1993. From1993 to 1998, he worked at Fiber Research Division in Samyang Group R&DCenter. He became a professor at ChonbukNational Universityin 1998. He was made Director of Center for Healthcare Technology &Development of Chonbuk National University in 2004. Meanwhile, hewas a visiting Professor at University of Massachusetts (USA) in 2004 and KingSaud University (Saudi Arabia) in 2010, respectively.

His research interestscenter on biomaterials, polymer composites, inorganic materials, and carbonnanofibers. His main achievements include 338 published SCI journal papers withmore than 9026 citations, H-index is 48 and 102 patents. He also received JangYoung Shil Award of Ministry of Science and Technology (1997), Academy Award ofthe Chonbuk Textile Engineering (2001), Excellence Award of the Chonbuk TextileEngineering (2002), Best Professor Academy Award of Chonbuk National University(2007, 2008), Medi Tex Award of Korea Fiber Society (2013), Grand Prize ofResearch Achievements of Chonbuk National University (2014) and Best PaperAward of Chonbuk National University (2008, 2012, and 2013).

报告大纲：

Transparent nanofiber composites were successfullysynthesized by easy electrospinning technique. The keratin was extracted fromdiscarded wool hair by the sulphitolysis process and the glyoxal solution wasused as a cross-linking agent. Discarded wool hair basedkeratin/poly(vinyl alcohol) blended nanofibers (WH/PVA NFs) were fabricated viaelectrospinning technique and characterized by several techniques.The resulting WH/PVA NFs composite matsshowed good uniformity in fiber morphology and suitable mechanical strength.More importantly, composite nanofiber with excellent optical transmittance wereachieved by a simple water treatment called 'dip and dry' process. In order tostudy the transparent property of optically transparent NFs for applying intransparent wearable devices, we fabricated a transparent flexible OrganicPhotovoltaics (OPV) substrate. The obtained results showed that the WH/PVA NFcomposites could be considered as a potential candidate in transparent wearabledevices. This study suggests a simple approach to utilize a waste material inan eco-friendly way for electronics applications.