报告题目：Do Electrospun Polymer Fibers Stick?
报 告 人：Prof. Shing-Chung Josh Wong (University of Akron)
报告时间：2016年1月6日上午9：30
报告地点：化学楼二楼一号会议室
报告人简介：
Dr. Wong began his graduate training in 1993 in mechanics and mechanisms of fracture of polymer blends with and without glass fiber reinforcements at UMass Amherst, working with Shanti V. Nair and Lloyd A. Goettler. Later he joined the group of Yiu-Wing Mai, FRS, at University of Sydney on identifying the roles of maleated block copolymers as a sequence of events in toughening nylon polypropylene blends. In addition to pursuing bio-inspired materials research, he has worked on mechanical behavior and functional properties of polymers, electrospinning, processing-structure-property relationships, composite and adhesion sciences. Dr. Wong has authored and coauthored over 70 research articles in books, journals and patent literatures, with additional papers in conference proceedings and refereed abstracts. There were over 2700 citations, a Hirsh-index = 25 and i-10 > 50, according to Google Scholar, as of 2015. In 2007 he was selected for an NSF Faculty Early CAREER Award (杰出青年研究奖) entitled "Electrospinning-Enabled Bio-Inspired Materials Research and Education" from the Program of Materials Processing and Manufacturing. He is an elected Fellow of American Society of Mechanical Engineers (F.ASME) 美国机械工程师学会会士in 2014 and an elected Fellow of the Society of Plastics Engineers (F.SPE) 美国塑料工程师国际协会会士in 2015. He was promoted to full professor (2013 -) with tenure (2009 -) at the University of Akron.
报告简介：
Nature inspired adhesion is performed using electrospun polymer blends. In this study, we make use of novel blends of electrospun polymer solutions to prepare nanofibers that produce adhesion on a rigid substrate. Traditionally, polymer alloys and blends were achieved via large scale extrusion compounding or reactive mixing twin screw extruder. In this lecture, a high Tg and highly spinnable polymer is blended with an adhesive low Tg component in a heterogeneous morphology by scalable electrospinning. Electrospinning appears to be a viable approach to forming nanoscale connectors and mechanical interlocks between polymer-polymer and polymer-inorganic interfaces. The formation of multicomponent polymer blends by electrospinning contributes to a marked increase in adhesion strength but yet continuous and/or co-continuous morphology. The electrospun polymer was found to produce superior adhesion properties as compared to their constituent phases.
