多壁奈米碳管強化環氧樹脂複合材料的機械性質

Uniaxial Stress-Strain Behavior of MWCNT-Reinforced Epoxy-Matrix Composites

張益瑋(Yi-Wei Chang)

指導教授 ： 余念一

元智大學/工程學院/機械工程學系/碩士(2005年)

摘要

無資料

關鍵字

奈米碳管 ； 環氧樹脂 ； 複合材料 ； 機械性質

並列摘要

Due to its excellent stiffness and strength, the carbon nanotube (CNT) is considered as an ideal candidate for reinforcement in composites. In the present work, the epoxy resin is used as the matrix whereas multi-walled carbon nanotubes (MWCNTs) with various diameters are used as the reinforcement. The composite is subjected to uniaxial tension and the effects of CNT weight fraction and CNT diameter on the mechanical properties of the composite are studied. The experiment results show that the Young modulus of 5 wt% CNT/epoxy composites with a CNT diameter D < 20 nm and D = 40 ~ 60 nm is 4.56 GPa and 4.36 GPa, and the tensile strength is 52.89 MPa and 46.80 MPa, respectively, whereas the Young modulus and the tensile strength of the pure epoxy is 2.83 GPa and 25.67 MPa, respectively. Micromechanics models are developed to predict the Young modulus of CNT-reinforced composites. The predicted Young moduli are benchmarked with the experimental data of MWCNT-reinforced epoxy-matrix composites.

並列關鍵字

carbon nanotube ； CNT ； epoxy ； composites ； mechanical properties

參考文獻

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