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研究生:涂政翔
研究生(外文):Tu Cheng-Hsiang
論文名稱:多壁奈米碳管/聚氨酯發泡複合材料之隔振性能研究
論文名稱(外文):Using Multi-walled Carbon Nanotube/PU Foam Composite as Vibration Isolator
指導教授:吳德和
指導教授(外文):Wu Der-Ho
學位類別:碩士
校院名稱:國立屏東科技大學
系所名稱:機械工程系所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2008
畢業學年度:96
語文別:中文
論文頁數:105
中文關鍵詞:多壁奈米碳管/聚氨酯發泡複合材料隔振性能田口法吸收能量分析
外文關鍵詞:MWCNT/ Polyurethane Foam CompositeTaguchi MethodIsolation
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奈米碳管是一種新型的碳材料。從奈米碳管被發現到現今為止,它的各項特性都一直令人好奇與驚喜,如機械強度、韌性、導熱性、電傳導方向都有優異表現,均遠超過於一般鋼鐵材料,因此受到許多學者廣泛研究與討論。近年來已有許多利用奈米碳管於高分子聚合物的複合材料研究,其目的在於提升高分子複合材料的性能。本論文主要針對多壁奈米碳管添加於聚氨酯發泡為複合材料作隔振相關性能研究;首先利用田口品質工程法(Taguchi Method)對多壁奈米碳管/聚氨酯發泡複合材料進行穩健最佳化製程設計,藉由力阻隔實驗以獲得最佳化製程參數。接著使用最佳化製程之新隔振複合材料對結構阻尼、吸收能量進行分析研究,並利用窄頻譜與倍頻譜進行隔振墊片的隔振性能分析。同時使用掃描式電子顯微鏡(Scanning Electron Microscope, SEM)觀察多壁奈米碳管在聚氨酯發泡材料分佈情況。
The carbon nanotube is a new kind of carbon materials. Since it has been found, there are several marvel properties related to this material, such as good conductivity of heat and electricity, superb mechanical strength and toughness higher than steel, which are popularly reported by engineers. Recently, a lot of researches about CNT/polymer composite have been made in order to enhance the performance of such material. This work is focused on the research of using the MWCNT/PU foam composite as the vibration isolator material. First, the Taguchi Method is used to obtain the robust design and the optimal parameters of fabrication for the MWCNT/PU foam composite. Under the optimized settings, the analyses of the structure damping and energy absorption of the new proposed polymer composite material have been done, too. The narrow bandwidth and octave bandwidth spectrum are equipped to analyze the abilities of the vibration absorption of the anti-vibration sample pad. Finally, we use the scanning electron microscope (SEM) to observe the dispersion condition of MWCNT/PU Foam composite.
摘要.................................................................................................................Ⅰ
Abstract...........................................................................................................Ⅱ
謝誌.................................................................................................................Ⅲ
目錄.................................................................................................................Ⅳ
表目錄.............................................................................................................Ⅸ
圖目錄............................................................................................................ XI
符號索引..................................................................................................... XVI
第1章 緒論......................................................................................................1
1.1研究背景與動機......................................................................................1
1.2論文架構..................................................................................................3
第2章 文獻回顧..............................................................................................4
2.1奈米碳管結構..........................................................................................5
2.2奈米碳管製造及純化方法......................................................................6
2.2.1奈米碳管製造....................................................................................6
2.2.2奈米碳管純化....................................................................................8
2.3官能基奈米碳管......................................................................................9
2.4奈米碳管特性........................................................................................11
2.4.1機械性能..........................................................................................11

2.4.2電學性能..........................................................................................13
2.4.3熱性能..............................................................................................15
2.5聚氨脂發泡............................................................................................16
2.5.1聚氨脂發泡的高分子化學原理......................................................17
2.5.2聚氨脂發泡的物理性質..................................................................18
2.6奈米複合材料........................................................................................19
2.6.1奈米碳管應用領域..........................................................................19
2.6.2奈米碳管於複合材料之應用..........................................................20
2.6.3奈米碳管於複合材料中的分散問題..............................................21
2.6.4奈米碳管/聚氨脂複合材料.............................................................22
第3章 田口法原理........................................................................................23
3.1品質損失函數定義................................................................................23
3.2品質特性(目標函數值)的種類.............................................................25
3.3直交表....................................................................................................27
3.4田口法分析程序....................................................................................28
3.4.1定義目標函數................................................................................. 28
3.4.2定義設計參數與水準......................................................................28
3.4.3選擇直交表......................................................................................28
3.4.4平均數分析(ANOM) ......................................................................29

3.4.5變異數分析(ANOVA) ....................................................................30
3.4.6確認實驗..........................................................................................31
第4章 多壁奈米碳管/聚氨脂發泡複合材料分散製程穩健設計...............33
4.1靜態最佳化設計....................................................................................33
4.1.1定義目標函數..................................................................................34
4.1.2定義設計參數水準與直交表..........................................................34
4.2力阻隔原理............................................................................................35
4.3隔振試片製作........................................................................................36
4.3.1試片規格..........................................................................................36
4.3.2試片製作材料..................................................................................36
4.3.3多壁奈米碳管改質..........................................................................39
4.3.4試片製作設備及儀器......................................................................39
4.3.5試片製作..........................................................................................41
4.4力阻隔性實驗........................................................................................47
4.4.1實驗設備及儀器..............................................................................47
4.4.2實驗步驟..........................................................................................49
4.4.3實驗結果..........................................................................................49
4.4.3.1高度方向.....................................................................................50
4.4.3.2水平方向.....................................................................................55

4.5平均數分析............................................................................................61
4.5.1高度方向..........................................................................................61
4.5.2水平方向..........................................................................................65
4.6變異數分析............................................................................................69
4.6.1高度方向..........................................................................................69
4.6.2水平方向..........................................................................................69
4.7結構之阻尼比特性................................................................................70
4.7.1理論公式..........................................................................................70
4.7.2試片尺寸..........................................................................................72
4.7.3實驗儀器..........................................................................................73
4.7.4阻尼比實驗......................................................................................74
4.8掃描式電子顯微鏡分析........................................................................77
第5章 多壁奈米碳管/聚氨脂發泡複合材料隔振性能研究.......................79
5.1隔振原理................................................................................................79
5.2隔振墊片隔振性能量測分析................................................................82
5.2.1隔振墊片製作..................................................................................83
5.2.2實驗儀器設備..................................................................................85
5.2.3實驗架構與程序..............................................................................86
5.2.4分析方法..........................................................................................88

5.2.5窄頻譜分析與倍頻譜分析介紹......................................................88
5.2.6實驗結果與討論..............................................................................90
5.3 MWCNT/PU Foam複合材料吸收能量性質.......................................96
5.3.1實驗分析..........................................................................................96
5.3.2實驗結果與討論..............................................................................96
第6章 結論與建議........................................................................................98
6.1多壁奈米碳管/聚氨脂發泡複合材料之分散製程穩健設計方面.......98
6.2多壁奈米碳管/聚氨脂發泡複合材料結構阻尼方面...........................98
6.3多壁奈米碳管/聚氨脂發泡複合材料隔振性能研究方面...................99
6.4檢討與建議............................................................................................99
6.5未來發展..............................................................................................100
參考文獻.......................................................................................................101
作者簡介.......................................................................................................105
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