Title :
Functionalized graphene sheet/polyurethane nanocomposites: Effect of particle size on the physical properties
Author :
Choi, Jin Taek ; Ryu, Kwang Sun ; Lee, Hyung-il ; Jeong, Han Mo ; Shin, Cheol Min ; Kim, Jung Ho
Author_Institution :
Dept. of Chem., Univ. of Ulsan, Ulsan, South Korea
Abstract :
The percolation threshold in the nanocomposite of functionalized graphene sheet (FGS) and thermoplastic polyurethane (TPU) reduced effectively by increasing the particle size of FGS. That is the FGS with average size of 8.3 μm has the percolation threshold at 0.4 wt% in the nanocomposite of TPU, whereas it was more than 1.4 wt% when the FGS size was 2.4 μm. The effect of FGS size on mechanical and other properties were also examined.
Keywords :
electrical conductivity; filled polymers; graphene; mechanical properties; nanocomposites; particle reinforced composites; particle size; percolation; C; functionalized graphene sheet particle size; functionalized graphene sheet-polyurethane nanocomposites; mechanical properties; particle size effect; percolation threshold; size 2.4 mum; size 8.3 mum; thermoplastic polyurethane; Electric properties; Graphene; Mechanical properties; Nano composites;
Conference_Titel :
Strategic Technology (IFOST), 2010 International Forum on
Conference_Location :
Ulsan
Print_ISBN :
978-1-4244-9038-7
Electronic_ISBN :
978-1-4244-9036-3
DOI :
10.1109/IFOST.2010.5668002
