화학공학소재연구정보센터
Composite Interfaces, Vol.25, No.10, 919-927, 2018
High performance magnetic elastomer nanocomposites
Elastomer nanocomposites were prepared by mixing carbon nanofiber (CNF) decorated with metal nanoparticles (CNF-Fe2O3) with latex. The Fe2O3 metal nanoparticles were decorated on the CNF by electrostatic attraction via a green and facile solution-based method. The presence of the metal nanoparticles on the surface of the CNF improved their dispersion and electric contact resistance in the elastomer matrix. Interestingly, the CNF-Fe2O3/elastomer composite exhibited improvements in both tensile strength and elongation (carbon black/elastomer), by as much as 9.7 and 28.9%, respectively, compared to an elastomer control without filler. Also, the CNF-Fe2O3/elastomer exhibited superior thermal and electrical conductivity compared with the control. In an applied magnetic field the elastomer nanocomposites showed a significant transition from dominant diamagnetism to ferromagnetism due to synergies between the Fe2O3 nanoparticles and the CNF. The elastomer nanocomposites prepared with CNF-Fe2O3 will open significant new opportunities for preparing advanced elastomer nanocomposites for future engineering applications. [GRAPHICS] .