曲丽君 - 石墨烯大会

演讲嘉宾-曲丽君

曲丽君
青岛大学教授

Lijun Qu is a professor in Fiber & Polymer Science of College of Textiles at Qingdao University. She received B.S. degree in Textile Engineering from East China Textile Institute of Science and Technology, M.S. and Ph.D. degrees in Textile from China Textile University and Donghua University in 1991 and 2005, respectively. She joined Qingdao University as lecturer in 1986, then promoted associate professor, professor. Since 2013, she became associate head of Laboratory of New Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory. During 1996-1997, she worked as visiting scholar at Agrotechnological Research Institute in Netherlands.

Her research interests include graphene-based composite fibers and textiles, their structure-defined preparation, characterization; and their application in functional textile engineering, including electromagnetic shielding, super anti – ultraviolet protective, healthcare purposes in various lightweight applications, etc. .

演讲题目：Preparation and Properties of Multifunctional Cellulose/Graphene Composite Fibers

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内容摘要

Graphene oxide acted as the multifunctional nanoplate was filled into cellulose spinning solution to fabricate a series of composite fibers with different graphene oxide weight ratios (1-3%) via the industrial wet spinning route. The morphology and structures of the resultant composite fibers were characterized by SEM, FTIR, XRD, afterwards, their mechanical properties, flame retardance, UV blocking, far infrared emission were evaluated and compared. The results indicated that graphene oxide dispersed evenly in the cellulose matrix and hydrogen bonding was evolved between graphene oxide and cellulose compounds, the composite fiber performed desirable mechanical properties, up to 1.5-fold increment of breaking strength, reasonable flame retardant properties, and excellent UV blocking (UPF >50) along with the high level of far infrared emission (>80%). These multifunction composite fibers could be applied in variety application of soft materials.