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Biography

Juiming Yeh
Juiming Yeh
Chung Yuan Christian University
Title:
Enhancement of gas barrier and electro-catalytic properties of electroactive epoxy resins by incorporation of reduced graphene oxide platelets for anticorrosive coating application
Abstract:

In this paper, a series of electroactive epoxy/reduced graphene oxide (rGO) composite (EGC) coatings were prepared and first applied in the corrosion protection application. First of all, the amine-capped aniline trimer (ACAT) was synthesized by oxidative coupling reaction of aniline with 4,4กฏ-diaminodiphenylamine. Subsequently, the electroactive EGC coatings can be obtained by thermal ring-opening polymerization of DGEBA with ACAT/T-403 in the presence of rGO at specific heating program. The characterization of rGO, EGC can be performed by FTIR, SEM and XRD. The dispersion capability of rGO platelets existing in electroactive epoxy matrix was identify by transmission electron microscopy (TEM). The electroactivity of as-prepared epoxy composite coatings were investigated by electrochemical cyclic voltammetric studies. 

Enhancement of Corrosion protection of electroactive epoxy coating (EC) by incorporation of rGO platelets was investigated by performing a series of electrochemical corrosion measurements in saline condition. It should be noted that the incorporation of rGO might into EC was found to effectively promote the corrosion performance of EC, which might be associated with the enhancement of gas barrier and electro-catalytic properties of electroactive EC resulted from the incorporation of rGO platelets.

Biography:
Professor Juiming Yeh finished his bachelor and master degree at chemistry department of Fu-Jen Cathodic University, Taiwan, in 1988 and 1990, respectively. In 1992, he went to Drexel University of USA to pursuit his Ph.D. degree in the field of polymer chemistry. His PhD dissertation was concentrated on the studies of conducting polymers, sol-gel materials and organic-inorganic hybrid materials. In 1998, Professor Yeh entered into the chemistry department of Chung Yuan Christian University (CYCU) as an assistant professor. He was prompted to associate professor and full professor in 2002 and 2005, respectively. Currently, he focused his research interests on the studies of self-healing hydrogel, bio-mimetic materials and polymer nanocomposite materials through effectively dispersion of different nano-fillers (e.g., nanolayered clay, silica nanoparticles, carbon nanotube and graphene nanosheets) into various polymeric matrices and developed novel applications, especially in anticorrosion coatings, supercapacitor materials and bioscaffold materials. Up to now, his research career (since 1994) has generated ~ 180 SCI-related publications, four books (each book containing one chapter) and ~ 10 US Patents. He was promoted to distinguished professor in chemistry department of CYCU from 2012 to now.
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