摘 要
奈米材料中的奈米碳管擁有高比強度、高比勁度等優異的物理與機械性質，故常作為補強材。本研究以壓克力骨水泥為研究主題，以骨水泥做為基材，添加不同重量百分比之多壁奈米碳管，探討此複合材料之機械性質。文中也以不同骨水泥藥粉與液態藥劑比例製作含奈米碳管之骨水泥複合材料，探討其對此複合材料機械性質之影響，並找出最適當之藥劑含量。在實驗方面，以單軸壓縮試驗及三點彎曲試驗得到骨水泥複合材料之抗壓、抗彎強度及楊氏模數等機械性質，並量測含奈米碳管之骨水泥複合材料之密度、成型溫度及玻璃轉換溫度。另使用有限單元軟體ANSYS分析骨水泥受壓縮之變形行為，探討分析與實驗結果之機械性質差異。最後以掃描式電子顯微鏡觀察骨水泥複合材料的破壞斷面，討論其破壞機制，結果顯示加入奈米碳管使骨水泥藥粉與藥劑聚合反應不完全，界面強度不佳及碳管團聚，這些因素均造成試片中空孔率增加使得機械性質下降，而改變藥劑含量至適當值可改善奈米碳管骨水泥複合材料之機械性質。奈米碳管之優良熱傳導性質可使骨水泥成型溫度降低，加入奈米碳管可使骨水泥之玻璃轉換溫度及密度提升，且含奈米碳管之骨水泥複合材料與正常成人脊椎骨的骨質密度相近，可臨床應用於人體骨骼填充及修補方面。

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