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Title: Extraordinary synergy in the mechanical properties of polymer matrix composites reinforced with 2 nanocarbons
Authors: Prasad, K Eswar
Das, Barun
Maitra, Urmimala
Ramamurty, Upadrasta
Rao, C N R
Keywords: Binary combinations
Nanoindentation technique
Polyvinyl alcohol
Synergistic effects
Issue Date: 11-Aug-2009
Publisher: National Academy Sciences
Citation: Proceedings of The National Academy of Sciences (PNAS) 106(32), 13186-13189 (2009)
Abstract: One of the applications of nanomaterials is as reinforcements in composites, wherein small additions of nanomaterials lead to large enhancements in mechanical properties. There have been extensive studies in the literature on composites where a polymer matrix is reinforced by a single nanomaterial such as carbon nanotubes. In this article, we examine the significant synergistic effects observed when 2 different types of nanocarbons are incorporated in a polymer matrix. Thus, binary combinations of nanodiamond, few-layer graphene, and single-walled nanotubes have been used to reinforce polyvinyl alcohol. The mechanical properties of the resulting composites, evaluated by the nanoindentation technique, show extraordinary synergy, improving the stiffness and hardness by as much as 400% compared to those obtained with single nanocarbon reinforcements. These results suggest a way of designing advanced materials with extraordinary mechanical properties by incorporating small amounts of 2 nanomaterials such as graphene plus nanodiamond or nanodiamond plus carbon nanotube.
Description: Restricted access.
Other Identifiers: 0027-8424
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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