Abstract
Synergistic effect in network formation of nylon-6 (PA6) nanocomposites containing one dimensional (1D) multi-walled carbon nanotubes (CNTs) and two dimensional (2D) layered double hydroxide (LDH) platelets on improving the mechanical properties has been studied. Mechanical tests show that, with incorporation of 1 wt% LDHs and 0.5 wt% CNTs, the tensile modulus, the yield strength as well as the hardness of the ternary composite are greatly improved by about 230%, 128% and 110% respectively, as compared with neat PA6. This is mainly attributed to the unique, strong interactions between the CNTs and the LDHs as well as the jammed network-like structure thus formed between the nanofillers, as confirmed by the morphological observations. As compared with the binary nanocomposites, a much enhanced solid-like behavior in the terminal region of the rheological curves can clearly be observed for the ternary system, which also indicates the formation of a percolating filler network.
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This work was financially supported by the National Natural Science Foundation of China (No. 51125011), Guangxi Small Highland Innovation Team of Talents in Colleges and Universities, Guangxi Funds for Specially-appointed Experts, and Guangxi Natural Science Foundation of China (No. 2014GXNSFAA118321).
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Liu, T., Peng, H., Miao, YE. et al. Synergistic effect of carbon nanotubes and layered double hydroxides on the mechanical reinforcement of nylon-6 nanocomposites. Chin J Polym Sci 32, 1276–1285 (2014). https://doi.org/10.1007/s10118-014-1521-y
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DOI: https://doi.org/10.1007/s10118-014-1521-y