臺灣博碩士論文加值系統

本研究旨在應用旋轉靜電紡絲法製作氧化銅(CuO)奈米纖維，旋轉靜電紡絲法能以較低的製備時間製備纖維，同時也可提高產量，因此以旋轉靜電紡絲法來取代傳統靜電紡絲技術來製作出直徑可達奈米等級之氧化銅纖維，並調整旋轉靜電紡絲技術中之轉速速度、靜電電場大小及不同高分子聚乙烯吡咯烷酮 ( Polyvinylpyrrolidone，PVP，分子量:1300000)溶液濃度，並經過高溫燒結形成氧化銅奈米纖維，再找出可得到完整且纖維直徑均勻的最佳參數。最後成功得出當馬達轉速設定為2000 rpm且具有12 kV的靜電場電壓時，可得到平均直徑約 208.78 nm之纖維並具有完整的纖維型態。研究過程中則會以TGA (Thermogravimetric analysis)熱重量分析儀測定該纖維在燒結過程中高分子被分解的比重趨勢及XRD (X-ray diffraction)進行元素鑑別，最後再透過SEM (Scanning Electron Microscope)及FE-SEM (Field Emission Scanning Electron Microscop)顯微鏡觀測纖維狀態同時量測該樣品之纖維直徑並進行燒結前後纖維型態的比較，並以TEM (Transmission electron microscope)驗證氧化銅之元素單晶結構。

This study purpose to produce the copper oxide (CuO) nanowires by electro forcespinning. We can produce nanowires with lower time and larger yields of collector by electro forcespinning. Therefore, we replaced the traditional electrospinning technique with the electro forcespinning method to produce the copper oxide nanowires with nano grade. Also, we adjust the speed of rotating, the voltage of the electrostatic field and the different weight percentage concentration of polyvinylpyrrolidone (PVP, molecular weight: 1300000). After the calcination, the copper oxide nanowires are formed which was be able to find the best parameters for obtaining complete and uniform fiber diameter. When the motor speed set to 2000 rpm and the electrostatic field voltage at 12 kV, the fiber with an average diameter about 208.78 nm was obtained and had a complete pattern. During the research, the TGA thermogravimetric analyzer was used to determine the specific gravity of the polymer and the XRD for element identification. Finally, the fiber state of the sample was measured by SEM and FE-SEM, and the fiber diameter of the sample was measured and compared before and after sintering. The monoclinic crystal structure of the element of copper oxide was verified by TEM.

第一章 緒論1
1.1 前言1
1.2 文獻回顧2
1.2.1 氧化銅奈米纖維製程2
1.2.2 靜電紡絲法 (Electrospinning) 3
1.2.3 離心紡絲法 (Forcespinning) 5
1.2.4 旋轉靜電紡絲法 (Electro-forcespinning) 7
1.3 研究目的8
第二章 實驗規劃及方法9
2.1 實驗藥品材料配置9
2.1.1藥材及設備清單9
2.1.2 含銅之高分子溶液製備流程10
2.2旋轉電紡實驗設備10
2.2.1旋轉電紡設備清單11
2.2.2旋轉電紡設備設計12
2.3實驗流程13
2.4實驗分析及項目14
2.4.1掃描電子顯微鏡 (Scanning Electron Microscopy，SEM) 14
2.4.2場效發射式掃描電子顯微 (Field Emission Scanning Electron
Microscope，FE-SEM) 15
2.4.3 X-射線繞射分析(X-Ray Diffractometer，XRD) 16
2.4.4熱重量分析 (Thermogravimetric Analyzer，TGA) 16
2.4.5穿透式電子顯微鏡 (Transmission electron microscope，TEM) 17
第三章 實驗結果與討論19
3.1各種變因與纖維型態之影響19
3.1.1旋轉轉速與纖維型態之關係19
3.1.2高壓靜電場與纖維型態之關係31
3.1.3高分子溶液濃度與纖維型態之關係41
3.2氧化銅奈米纖維燒結前型態41
3.3氧化銅奈米纖維之TGA熱重量分析43
3.4氧化銅奈米纖維之XRD元素分析46
3.5氧化銅奈米纖維在TEM下的晶體型態及結構50
第四章 結果與未來展望54
4.1結論54
4.2未來展望56
參考文獻57

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