多壁奈米碳管複合材料薄膜機械性質研究

The Mechanical Properties of MWCNT composite thin film

許廷宇(Ting-Yu Shiu)

指導教授 ： 何旭川

元智大學/工程學院/機械工程學系/碩士(2009年)

https://doi.org/10.6838/YZU.2009.00050

摘要

奈米碳管具備許多優異機械性質，如高強度、高韌性及高熱傳導率，因此被當作複合材料中理想的加強材料，與高分子材料混合，可提昇高分子材料之各項機械性質。本研究以熱固性高分子材料環氧樹脂為基材，添加兩種不同硬化劑作為改變基材性質的方法，探討不同重量百分比多壁奈米碳管對薄膜複合材料之影響。並以電木為基板，塗上一層奈米碳管複合材料，利用三點彎曲實驗求得彎曲時前端20%線性範圍之彈性模數，反推評估出單一薄膜的楊氏係數，並與薄膜的單膜拉伸實驗、奈米壓痕實驗，及塊材拉伸、三點彎曲實驗檢測所得奈米複合材料之楊氏係數比較。最後以場發射掃描式電子顯微鏡(FESEM)觀察複合材料測試後之破裂表面微結構，藉以了解奈米碳管與環氧樹脂間之黏結與分散效果及破壞機制。

關鍵字

奈米複合材料 ； 三點彎曲實驗 ； 奈米壓痕實驗 ； 薄膜

並列摘要

Carbon nano tubes possessed many advantages over conventional materials such as high strength, low density, high thermal and electric conductivity, are regarded as an ideal reinforcement for composite materials. In this work, the effects of the hardener and Multi-wall carbon nano tubes on the mechanical properties of the epoxy are studied, the mechanical properties of the MWCNT/epoxy nanocomposite thin film with thickness 0.23mm are examined by the tensile test and three point bending test, Good agreements are achieved between these two tests. The microstructures of the nano composite using FESEM.

並列關鍵字

MWCNT ； Nanocomposite ； three point bending ； thin Film

參考文獻

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