複合材料是由基材和補強材料所組成，而基材普遍多為使用高分子材料，但其本身機械性質、電性質與熱性質並不出色，並且溫度和時間皆是影響基材機械性質所需考慮的因素，而通常是加入補強材料來改善。本研究利用奈米鑽石粉末與環氧樹脂製備奈米鑽石/環氧樹脂複合材料，以及加進官能化製程，探討不同重量百分比之奈米鑽石粉末對整體複合材料機械性質影響，並佐以場發射掃描式電子顯微鏡之微結構觀察、粒徑大小及界面電位對其進行探討。
實驗結果顯示添加奈米鑽石粉末1.0 wt%，相較於純環氧樹脂其楊氏模數和撓曲模數分別提升9.21%和12.07%，而其拉伸強度上升8.38%，而撓曲強度上升8.40%；1 wt%官能化奈米鑽石/環氧樹脂複合材料，其維氏硬度提升10.63%，並且其磨耗指標下降78.12%，最後以場發射電子顯微鏡(FESEM)觀察奈米鑽石/環氧樹脂複合材料拉伸斷裂面及磨耗試片表面之微觀結構，以便了解補強材料在拉伸斷裂面之分布狀況及其破壞機制， 並且了解磨耗試片表面之磨損機制。

Composite materials are composed of matrix and reinforcement. The polymer is usually used as matrix, with relatively low mechanical and electric and thermal properties. Polymer can be improved by adding reinforcement. In this study, nanodiamond/epoxy composites specimens were prepared with 0, 0.5, 1, and 2 wt% nanodiamond powder to investigate the mechanical properties of composites. Also, functionalization procedure was studied. For nanodiamond/epoxy composites, the field emission scanning electron microscope was also used to observe the fracture surface of nanodiamond/epoxy composites specimens.
It was found that with nanodiamond powder content of 1 wt%, the tensile modulus, tensile strength, bending modulus and bending strength of nanodiamond/epoxy composites were 9.21%, 12.07%, 8.38% and 8.40 higher than those of pure epoxy respectively. Vicker’s hardness were 10.63% higher and wear index were 78.12% lower than those of pure epoxy for the 1 wt% functionalized nanodiamond/epoxy composites. The fracture surfaces of tested composites were observed by Field Emission Scanning Electron Microscope (FESEM). The failure mechanism of the composites and the dispersion of reinforcement were discussed. The worn surfaces of tested composites were also observed by FESEM to access the worn mechanism of the composites.

摘要 I
Abstract II
致謝 III
目錄 IV
圖表目錄 VII
第一章 緒論 1
1.1 研究動機 2
1.2 文獻回顧 2
1.2.1 碳複合材料機械性質簡介 2
1.2.2 奈米鑽石粉末及官能化奈米鑽石粉末簡介 4
1.2.3 環氧樹脂簡介 5
1.3 研究主題 6
第二章 實驗方法與步驟 7
2.1 複合材料組成原料 7
2.1.1 環氧樹脂 7
2.1.2 奈米鑽石粉末 7
2.2 實驗儀器設備 7
2.2.1 陶瓷加熱攪拌機 8
2.2.2 超音波震盪機 8
2.2.3 真空烘箱與真空幫浦 8
2.2.4 熱風循環烤箱 9
2.2.5 熱壓機 9
2.2.6 鑽石切割機 9
2.2.7 電子天秤 9
2.2.8 拉伸試驗機 10
2.2.9 場發射掃描式電子顯微鏡 10
2.2.10 微小硬度量測系統 10
2.2.11 泰伯磨耗試驗機(Taber Abraser Tester) 11
2.3 官能化奈米鑽石粉末 11
2.3.1 官能化奈米鑽石粉末之製備 11
2.3.2 傅里葉轉換紅外光譜儀 12
2.4 動態光散射粒徑分析儀及界面電位分析儀 12
2.5 試片製作 13
2.5.1 前處理 13
2.5.2 熱壓硬化處理 14
2.5.3 高溫後硬化處理 15
2.6 機械性質量測 16
2.6.1 拉伸試驗 17
2.6.2 撓曲試驗 18
2.6.3 微小硬度試驗 18
2.6.4 磨耗試驗 19
2.7 試片微結構觀察 20
第三章 數據分析 21
3.1 數據分析 21
3.1.1 數據平均值與標準差 21
3.1.2 Chauvenet’s準則 22
3.1.3 最小平方法 22
第四章 結果與討論 24
4.1 官能化奈米鑽石粉末化學鍵結分析 24
4.2 奈米鑽石粉末之粒徑及界面電位分析 25
4.3 奈米鑽石/環氧樹脂複合材料拉伸性質 27
4.4 奈米鑽石/環氧樹脂複合材料撓曲性質 29
4.5 奈米鑽石/環氧樹脂複合材料硬度試驗 31
4.6 奈米鑽石/環氧樹脂複合材料磨耗試驗 32
4.7 場發射電子顯微鏡之微結構觀察 34
4.7.1 拉伸試片斷裂面 34
4.7.2 磨耗試片表面 35
第五章 結論與未來展望 37
5.1 結論 37
5.2 未來展望 38
參考文獻 39
圖表 44

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