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题名: Bio-Inspired Aggregation Control of Carbon Nanotubes for Ultra-Strong Composites
作者: Han, Y; Zhang, XH(张骁华); Yu, XP(余雪平); Zhao, JN(赵静娜); Li, S; Liu, F; Gao, P; Zhang, YY(张永毅); Zhao, T; Li, QW(李清文)
通讯作者: Zhang, XH (郑新河)
刊名: SCIENTIFIC REPORTS
发表日期: 2015
DOI: 10.1038/srep11533
卷: 5, 页:9
收录类别: SCI
部门归属: 先进材料研究部
英文摘要: High performance nanocomposites require well dispersion and high alignment of the nanometer-sized components, at a high mass or volume fraction as well. However, the road towards such composite structure is severely hindered due to the easy aggregation of these nanometer-sized components. Here we demonstrate a big step to approach the ideal composite structure for carbon nanotube (CNT) where all the CNTs were highly packed, aligned, and unaggregated, with the impregnated polymers acting as interfacial adhesions and mortars to build up the composite structure. The strategy was based on a bio-inspired aggregation control to limit the CNT aggregation to be sub 20-50 nm, a dimension determined by the CNT growth. After being stretched with full structural relaxation in a multi-step way, the CNT/polymer (bismaleimide) composite yielded super-high tensile strengths up to 6.27-6.94 GPa, more than 100% higher than those of carbon fiber/epoxy composites, and toughnesses up to 117-192 MPa. We anticipate that the present study can be generalized for developing multifunctional and smart nanocomposites where all the surfaces of nanometer-sized components can take part in shear transfer of mechanical, thermal, and electrical signals.
语种: 英语
JCR小类分区: 二区
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内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/3351
Appears in Collections:先进材料研究部_李清文团队_期刊论文

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Recommended Citation:
Han, Y,Zhang, XH,Yu, XP,et al. Bio-Inspired Aggregation Control of Carbon Nanotubes for Ultra-Strong Composites[J]. SCIENTIFIC REPORTS,2015,5:9.
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