碳/碳複合材料擁有低密度、低熱膨脹係數、高機械疲勞抵抗力，在極高溫的無氧環境時(高達約2200℃)仍可以維持相當優良的抗拉強度等優點，但其在碳化過程中由於高溫的裂解易導致碳/碳複合材料內部產生許多的孔隙，應此需要致密化來填補孔隙，但致密化處理耗時且繁雜，在製造過程中增加生產成本。因此本研究利用擁有良好機械性質、熱性質與物理性質之奈米碳管做為補強材，不僅抑止孔洞生長，並且提升碳/碳複合材料機械性質與物理性質。
由結果顯示，添加1.2 wt%奈米碳管擁有最佳的彎曲強度、彎曲模數與層間剪切強度，分別提升23%、19.2%與30%。在三種老化環境中，添加1.2 wt%奈米碳管之碳/碳複合材料其較具有抗老化作用。添加奈米碳管後，降低碳/碳複合材料熱膨脹係數並且增加熱傳導係數與氧化燃燒溫度，有效提高碳/碳複合材料之熱穩定性。

第一章前言........................................1
第二章研究目的與內容…............................3
2-1研究目的.......................................3
2-2研究內容……….................................4
第三章文獻回顧……................................5
3-1碳/碳複合材料介紹…………. ....................5
3-1-1碳的基本結構和特性……….....................5
3-1-2碳/碳複合材料之特性與應用……………………… 6
3-2碳/碳複合材料之製程和機械性質……………………. 7
3-2-1 碳/碳複合材料因製程影響其性質.......... 7
3-2-2 碳/碳複合材料之疲勞特性……………………….. 10
3-3 奈米碳管/高分子複合材料………………………. 11
3-3-1 奈米碳管複合材料性質…..………………………. 11
3-3-2 改質奈米碳管複合材料性質……………………... 13
3-4 酚醛樹脂備製與性質...................... 14
3-4-1 Resol Type 酚醛樹脂……………………………… 15
3-4-2 Novolac Type 酚醛樹脂…………………………… 15
3-5 環境因素對複合材料機械性質之影響…………….. 17
第四章 實驗內容及程序…………………………….. 18
4-1 實驗儀器………………....................... 18
4-2 實驗材料………………………………….. 24
4-3 多壁奈米碳管/碳/碳複合材料的製備….......... 25
4-4 實驗流程…….......………………………….. 27
4-4.1 實驗測試條件............................... 28
4-4.2 實驗測試方法………………................... 29
第五章 結果與討論…………………………….. 35
5-1 分散劑比較……………………………………….. 35
5-1.1 彎曲測試分析……………………………………… 35
5-1.2 衝擊試驗分析……………………………………… 36
5-2 靜態機械性質分析………………………………….. 36
5-2.1 彎曲測試................................... 37
5-2.2 層間剪切強度分析……...................... 40
5-2.3 衝擊能量分析……………………………………… 41
5-3溫濕老化後靜態機械性質分析……………………….. 42
5-3.1 25℃/90%RH環境下老化處理之機械性質分析….. 43
5-3.2 25℃/90%RH→ 150℃環境下老化處理之機械性質分析…………..… 44
5-3.3 25℃/90%RH→ -15℃環境下老化處理之機械性質分析……………………………………………………….. 45
5-3.4 三種老化環境下之機械性質分析………………… 46
5-5 物理性質研究…………………………………….. 48
5-5.1 XRD光譜分析……………………………………… 48
5-5.2 Raman光譜分析……………………………………. 48
5-5.3 比重與空孔率測試分析…………………………… 49
5-5.4 吸濕測試分析…………………………………… 50
5-5.5 熱傳導、熱擴散與比熱測試分析………………… 51
5-5.6 熱機械性質測試分析……………………………… 52
5-5.7 熱重損失測試分析………………………………… 53
第六章 結論………………………………………….. 56
參考文獻 …….............................. 59
附表……. ……………………………………….. 64
附圖……. ……………………………………………….. 72

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