主题:    Transparent nanofiber composites for organic  electronics（有机电子材料用透明纳米纤维复合材料）

主讲人:   Hak-Yong Kim

地点:   延安路校区东华大学研究院209会议室

时间:   2017-08-16 10:00:00

组织单位:   纺织学院

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.