Click here to view fulltext PDF

Permanent link:
https://www.ias.ac.in/article/fulltext/boms/041/04/0102

Nanocomposites; reinforcements; mechanical properties; thermal properties.

The current study deals with the successful development of chitosan-functionalized graphene nanoplatelets (CS/GNPs) and their dispersion in the unsaturated polyester (UPE)/epoxidized soybean oil acrylate (ESOA) (80:20 w/w)blend system in different compositions of 0.3, 0.5 and 0.7wt%. The resulting nanocomposite mixturewas achieved by simple sonication method and pressed into a mould for fabrication of nanocomposite. The whole functionalization and nanocomposite preparation procedure were successfully tracked by FTIR, SEM and TEM. Nanocomposite with 0.5wt% of CS/GNPs nanofiller has demonstrated it as the better candidate due to its optimum properties. Again for better comparison, a nanocomposite with 0.5wt% raw GNPs was also fabricated and its properties were studied in detail. This relative study reported lower mechanical, dynamic mechanical, thermal and electrical conductivity values for 0.5wt% raw GNPs than the corresponding CS/GNPs nanofiller-filled nanocomposites. Nanocomposite with 0.5wt% CS/GNPs showed dramatic enhancement inmechanical, dynamic mechanical, thermal and electrical properties as well as reduced corrosion and swelling performance owing to the homogeneous distribution of nanofiller in the blend. Again, the nanocomposite showed the highest thermal and electrical conductivitieswith the best dielectric strength. Thus, the prepared nanocompositeswith optimum nanofiller contentmight serve as partially biodegradable nanomaterial for applications in nanotechnology engineering, thermal applications, such as circuit boards and electrical applications, such as electronic packaging components, electromechanical devices and electric energy storage devices. This nanocomposite can also find their applications in different corrosive- and solvent-based environments.

SHIVKUMARI PANDA¹ DIBAKAR BEHERA¹ PRASANT RATH¹ TAPAN KUMAR BASTIA¹

1. School of Applied Sciences (Chemistry), KIIT University, Bhubaneswar, Odisha 751024, India

Published

12 August 2018

Manuscript received

17 July 2017

Accepted

6 December 2017