High-Strength Composite Fibers: Realizing True Potential of Carbon Nanotubes in Polymer Matrix through Continuous Reticulate Architecture and Molecular Level Couplings
Data(s) |
2009
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Resumo |
Carbon nanotubes have unprecedented mechanical properties as defect-free nanoscale building blocks, but their potential has not been fully realized in composite materials due to weakness at the interfaces. Here we demonstrate that through load-transfer-favored three-dimensional architecture and molecular level couplings with polymer chains, true potential of CNTs can be realized in composites as Initially envisioned. Composite fibers with reticulate nanotube architectures show order of magnitude improvement in strength compared to randomly dispersed short CNT reinforced composites reported before. The molecular level couplings between nanotubes and polymer chains results in drastic differences in the properties of thermoset and thermoplastic composite fibers, which indicate that conventional macroscopic composite theory falls to explain the overall hybrid behavior at nanoscale. National Natural Science Foundation of China [10334060, 50572119, 20874023, 10572142] |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Nano Letters.2009,9(8):2855-2861 |
Palavras-Chave | #固体力学::复合材料力学 #Mechanical-Properties #Materials Science #Nanocomposites #Ropes #Films #Transparent #Sheets #Yarns #Load |
Tipo |
期刊论文 |