臺灣博碩士論文加值系統

本研究主要是著重於有機相與無機相混成的時機，及其對於所形成之二氧化矽結構的影響，利用放電紡絲法(Electrospinning)製備出聚乙烯醇縮丁醛(Polyvinyl butyral)及二氧化矽(Silica)之奈米纖維，以不同的反應時間所組成之PVB/Silica，形成具有規則排列以及具奈米級粒徑之複合纖維，並結合水熱法(Hydrothermal)在低溫條件下合成多晶相之奈米黏土礦物。
在實驗分析檢驗儀器中使用黏度計(Viscometers)，量測不同PVB/Silica組成之黏度值;以傅立葉轉換紅外線光譜儀(Fourier Transform Infrared spectrometer, FTIR)來測定某一化學分子或化學物種因吸收(或發射)紅外線輻射產生振動或振動-轉動能量的變化;以熱重分析儀(Thermogravimetric Analysis，TGA)測量PVB的熱重損失;以掃描式電子顯微鏡(Scanning Electron Microscopy，SEM)觀察纖維之表面形態;X光繞射儀(X-ray Diffractometer，XRD)測定結晶性;穿隧式電子顯微鏡(Transmission Electron Microscopy，TEM)觀察表面微觀的結晶形態。
我們可以成功的製備出粒徑在60∼200nm之聚乙烯醇縮丁醛(Polyvinyl butyral)及二氧化矽(Silica)奈米纖維，且因其奈米表面積化後，經高溫煅燒至600℃可轉為石英相(Quartz)，800℃可轉為鱗矽石相(Tridymite)、1000℃可轉為方矽石相(Cristobolite-α)，並藉由奈米複合纖維之模板效應使用水熱法在低溫成長出多晶相之二氧化矽礦石。

This research is mainly in organically dealing with the inorganic blending emphatically the opportunity, regarding forms the silicon dioxide structure influence.Preparation the Polyvinyl butyral nanofiber and the increase forms it in vitro ceram (Silica) by different composition PVB/Silica to have the regular array and the nanometer level particle size the complex fiber by Electrospinning and using Hydrothermal process synthesizes the polycrystal nano mineral clay under the low temperature condition.
The viscosity value of the gauging different PVB/Silica composition in the experiment analytical control instrument using the viscometers、 (Fourier Transform Infrared spectrometer, FTIR) determines some chemistry member either the chemical species absorbs or launch the infrared emission has the vibration or the vibration - rotation energy change、 (Thermogravimetric Analysis, TGA) surveys PVB by the thermogravimetry analyzer the thermogravimetry to lose,、shows the (Differential Scanning Calorimetry, DSC) to discuss the thermal property、(Scanning Electron Microscopy, SEM) to observe of surface contours、(X-ray Diffractometer, XRD) to determine the crystallinity、 (Transmission Electron Microscopy, TEM) observes the superficial microscopic crystallization shape.
The experimental result obtains, we may succeed the preparation nano particle size Polyvinyl butyral nanofiber and the particle size is smaller than silicon dioxide of (Silica) nanometer textile fiber a 200nm polyvinyl butyral in the 60~200nm, because and the surface area to 600℃ transfers Quartz after the high temperature calcination, 800℃ rotatable for Tridymite,1000℃ rotatable for Cristobolite-αand grows polycrystalline Cristobolite-α by the template of effect use Hydrothermal in low temperature because of the nanometer complex fiber.

頁次
中文摘要………………………………………………………………Ⅰ
英文摘要………………………………………………………………Ⅲ
誌謝····················································Ⅴ
目錄……………………………………………………………………Ⅶ
圖目錄………………………………………………………………ⅩⅡ
表目錄………………………………………………………………ⅩⅥ
第一章 緒論
1.1
前言····················································1
1.2
研究背景················································1
1.2.1
聚乙烯醇縮丁醛(polyvinyl butyral，PVB)簡介··············1
1.2.2
溶膠－凝膠法(sol－gel method)原理············6
1.2.2.1水解反應(hydrolysis)·····························7
1.2.2.2 縮合反應(condensation)··························8
1.2.2.3 聚合反應(polymerization)························8
1.2.3
放電紡絲法(electrospinning，ES)原理···········13
1.2.4
水熱法(hydrothermal)原理 ·······························18
1.2.5
有機/無機混成材料之簡介·································19
1.2.6
結晶型游離二氧化矽之定義································21
1.3
研究動機及目的··········································25
第二章 文獻回顧
2.1
電紡絲的基本裝置········································27
2.2
電紡絲過程············································· 27
2.3
影響電紡絲之因素········································29
2.4
纖維的收集與排列·····················33
2.5
無機/高分子複合纖維與陶瓷纖維···························35
2.6
奈米線薄膜狀材料之應用··································48
2.6.1
創傷敷料(wound dressing) ·······························49
2.6.2
生物基材(scaffolds) ····································50
2.6.3
導引組織再生術 ·········································50
第三章 實驗
3.1
實驗藥品················································53
3.2
實驗材料與儀器··········································53
3.3
實驗 ···················································54
3.3.1
實驗流程 ···············································54
3.3.2
溶液製備 ···············································57
3.3.2.1
聚乙烯醇縮丁醛溶液 ·····································57
3.3.2.2
二氧化矽前驅物溶液······································57
3.3.2.3
水熱法溶劑溶液··········································57
3.4
電紡絲的實驗流程 ·······································57
3.5
儀器操作及實驗步驟 ·····································58
3.6
實驗分析 ···············································59
3.6.1
紅外線光譜分析儀········································59
3.6.2
掃描式電子顯微鏡········································59
3.6.3
熱重分析儀··············································60
3.6.4
X光繞射分析儀 ··········································60
3.6.5
穿隧式電子顯微鏡分析儀··································61
第四章 結果與討論
4.1
溶液黏度值分析··········································63
4.1.1
不同重量百分比PVB溶液黏度值分析·························63
4.1.2
不同sol-gel時間/PVB溶液黏度值分析 ······················63
4.2
FTIR光譜分析 ···········································64
4.2.1
PVB 粉末與PVB奈米纖維光譜分析比較···················....64
4.2.2
PVB/Silica奈米纖維光譜分析比較··························65
4.3
TGA分析·················································66
4.3.1
PVB奈米纖維TGA分析······································66
4.3.2
PVB/Silica奈米纖維TGA分析·······························66
4.4
SEM分析·················································67
4.4.1
不同重量百分比PVB奈米纖維分析···························67
4.4.2
不同Sol-Gel反應時間/PVB 15 wt%奈米纖維分析······........68
4.4.3
奈米纖維於不同濃度之NaOH成長Silica柱狀分析····..........77
4.5
XRD分析·················································78
4.5.1
PVB粉末與PVB nanofiber XRD比較··························78
4.5.2
Sol-Gel溶液煅燒600℃/800℃/1000 ℃繞射分析·········.....79
4.5.3
Sol-Gel 30 min溶液/PVB15 wt%奈米纖維煅燒600℃/800℃/1000℃繞射分析··········································......80
4.5.4
Sol-Gel 90 min溶液/15wt%PVB奈米纖維煅燒600℃/800℃/1000℃繞射分析··········································........81
4.5.5
Sol-Gel 300min溶液/15wt%PVB奈米纖維煅燒600℃/800℃/1000℃繞射分析··········································........82
4.6
TEM分析·················································83
4.6.1
Sol-Gel 300 min/15wt%PVB奈米纖維鍛燒1000℃······........83
4.6.2
Sol-Gel 300 min與15wt%PVB奈米纖維水熱法分析··...........84
第五章結論及未來展望 ···································85
參考文獻 ···············································87

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