本實驗是以環氧樹脂當作基材，多壁奈米碳管(MWCNTs)和氧化鋁(Al2O3)作為填充材，利用三軸滾輪機以機械剪切力混合均勻後，在110℃、1000 psi的環境下熱壓成型固化五小時所製成的複合材料。本實驗選用兩種氧化鋁粉，一般氧化鋁以及球狀氧化鋁，並選擇添加多壁奈米碳管1wt %至5 wt %的樣品進行SEM、拉曼、電性量測、熱傳導係數量測、溫升測試以及抗彎試驗來分析材料的性質。實驗結果顯示，加入多壁奈米碳管和氧化鋁後，原本為電與熱的不良導體的環氧樹脂，其電性和熱傳導性質會大幅提升，使其可以藉由通電利用電阻加熱，結果顯示MWCNTs/Al2O3/Epoxy複合材料通以4W的電後，溫度可在10分鐘之內達到60℃，而通以6W的電後，溫度達到60℃不用5分鐘，這種穩定加熱的性質，再加上環氧樹脂本身優異的機械強度，未來可望應用在電地暖此種需要支撐一定負重的加熱材。

Electrical resistive composites are made by epoxy, Al2O3 and multi-walled carbon nanotubes (MWCNTs) at different ratios. Firstly, epoxy, MWCNTs and Al2O3 powder are uniformly mixed by three-roll mill to form adhesives. Then adhesives are cured at 110 and under 1000 psi by thermoforming process. Two types of Al2O3 are used; angular type and spherical type. The specimens contain two different Al2O3 and MWCNT 1~5 wt% are selected for further tests. Results show a significant improvement in electrical and thermal properties compared with pure epoxy. Improvements therefore allow MWCNTs/ Al2O3/Epoxy composites to be used as resistive heating elements. The surface temperature of composites can reach 60℃ in 10 min with an input power of only 4W and in 5 min with 6W. The stable heating coupled with mechanical strength of composites can be used as floor heating system.

摘要 I
Abstract II
誌謝 III
目錄 IV
圖目錄 VI
表目錄 IX
第一章 緒論 1
1-1 前言 1
1-2 實驗目的與動機 2
第二章 文獻回顧 4
2-1 地暖簡介 4
2-1-1 地暖的原理與優勢 4
2-1-2 水地暖與電地暖的比較 5
2-1-3 電地暖的種類與比較 6
2-2 奈米碳管簡介 8
2-2-1 奈米碳管的結構 8
2-2-2 奈米碳管的電性 11
2-2-3 奈米碳管的熱性質 12
2-2-4 奈米碳管的機械性質 14
2-3 氧化鋁簡介 15
2-4 環氧樹脂簡介 17
2-5 複合材料簡介 18
第三章 實驗方法 19
3-1 實驗藥品與儀器 19
3-2 實驗流程 20
3-3 實驗步驟 21
3-3-1 MWCNTs/Al2O3/Epoxy複合材料之製備 21
3-3-2 拉曼光譜量測 23
3-3-3 電性量測 24
3-3-4 熱傳導係數量測 27
3-3-5 玻璃轉換溫度量測 29
3-3-6 溫升測試 30
3-3-7 抗彎測試 31
第四章 實驗結果與討論 33
4-1 掃描式電子顯微鏡影像與拉曼光譜 33
4-2 電性量測 43
4-2-1 碳管濃度與電性之關係 43
4-2-2 填充材形狀與電性之關係 45
4-2-3溫度與電性之關係 46
4-3 熱傳導係數量測 47
4-3-1 碳管濃度與熱傳導係數之關係 47
4-3-2 添加材形狀與熱傳導係數之關係 49
4-3-3 溫度與熱傳導係數之關係 49
4-4 玻璃轉換溫度量測 51
4-5 溫升量測 54
4-5-1 重複升溫測試 55
4-5-2 變壓升溫測試 58
4-5-3升溫效率測試 59
4-5-4降溫測試 63
4-6 抗彎強度 64
第五章 結論 66
參考文獻 68

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