2013 Fiscal Year Final Research Report
High tensile strength polymer composites using aligned carbon nanotubes
| Project/Area Number |
23560823
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Composite materials/Physical properties
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| Research Institution | Japan Aerospace Exploration Agency |
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Principal Investigator |
OGASAWARA Toshio 独立行政法人宇宙航空研究開発機構, 航空本部, 主幹研究員 (20344244)
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| Project Period (FY) |
2011 – 2013
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| Keywords | カーボンナノチューブ / 複合材料 / 表面改質 / 高分子材料 / 材料力学 |
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| Research Abstract |
This study examined the mechanical properties of aligned NWCNT/ epoxy composites processed using a hot-melt prepreg method. Vertically aligned ultra-long CNT arrays were synthesized using CVD with high growth rate, and were converted to horizontally aligned CNT sheets. An aligned CNT /epoxy prepreg was fabricated using hot-melting with B-stage cured epoxy resin film. The resultant composites exhibit high Young's modulus and tensile strength.
For example, the maximum elastic modulus and ultimate tensile strength of a CNT (32.8 vol.%) /epoxy composite were 89 GPa and 239 MPa. CNT orientation angle distribution was quantitatively examined. Mori-Tanaka theory was adopted to estimate the elastic moduli of the composites. The numerical calculation results suggested that the Young's moduli of unidirectional CNT composites (32 vol.%) and 2-D randomly oriented CNT composites (35 vol.%) are almost equal to those of unidirectional and quasi-isotropic CFRP laminates, respectively.
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Research Products
(10 results)
