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Open Access Nano Express

Three-dimensional heterostructure of metallic nanoparticles and carbon nanotubes as potential nanofiller

Whi Dong Kim1, Jun Young Huh2, Ji Young Ahn1, Jae Beom Lee13, Dongyun Lee14, Suck Won Hong15 and Soo Hyung Kim12*

Author affiliations

1 Department of Nanofusion Technology, College of Nanoscience and Nanotechnology, Pusan National University, 30 Jangjeon-dong, Geumjung-gu, Busan 609-735, South Korea

2 Department of Nanomechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, 30 Jangjeon-dong, Geumjung-gu, Busan 609-735, South Korea

3 Department of Nanomedical Engineering, College of Nanoscience and Nanotechnology, Pusan National University, 30 Jangjeon-dong, Geumjung-gu, Busan 609-735, South Korea

4 Department of Nanofusion Engineering, College of Nanoscience and Nanotechnology, Pusan National University, 30 Jangjeon-dong, Geumjung-gu, Busan 609-735, South Korea

5 Department of Nanomaterial Engineering, College of Nanoscience and Nanotechnology, Pusan National University, 30 Jangjeon-dong, Geumjung-gu, Busan 609-735, South Korea

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Citation and License

Nanoscale Research Letters 2012, 7:202  doi:10.1186/1556-276X-7-202

Published: 29 March 2012

Abstract

The effect of the dimensionality of metallic nanoparticle-and carbon nanotube-based fillers on the mechanical properties of an acrylonitrile butadiene styrene (ABS) polymer matrix was examined. ABS composite films, reinforced with low dimensional metallic nanoparticles (MNPs, 0-D) and carbon nanotubes (CNTs, 1-D) as nanofillers, were fabricated by a combination of wet phase inversion and hot pressing. The tensile strength and elongation of the ABS composite were increased by 39% and 6%, respectively, by adding a mixture of MNPs and CNTs with a total concentration of 2 wt%. However, the tensile strength and elongation of the ABS composite were found to be significantly increased by 62% and 55%, respectively, upon addition of 3-D heterostructures with a total concentration of 2 wt%. The 3-D heterostructures were composed of multiple CNTs grown radially on the surface of MNP cores, resembling a sea urchin. The mechanical properties of the ABS/3-D heterostructured nanofiller composite films were much improved compared to those of an ABS/mixture of 0-D and 1-D nanofillers composite films at various filler concentrations. This suggests that the 3-D heterostructure of the MNPs and CNTs plays a key role as a strong reinforcing agent in supporting the polymer matrix and simultaneously serves as a discrete force-transfer medium to transfer the loaded tension throughout the polymer matrix.

Keywords:
Metallic nanoparticles; Carbon nanotubes; Heterostructures; Polymer composites; Mechanical property