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研究生:廖孜康
研究生(外文):Tzu-Kang Liao
論文名稱:聚(偏氟乙烯-三氟乙烯)薄膜的結構解析與感光壓電性質之研究
論文名稱(外文):Structural-resolved Study of Photon-sensitive Piezoelectric Properties of P(VDF-TrFE) Films
指導教授:黃爾文
指導教授(外文):E-Wen Huang
學位類別:碩士
校院名稱:國立中央大學
系所名稱:化學工程與材料工程學系
學門:工程學門
學類:化學工程學類
論文種類:學術論文
論文出版年:2014
畢業學年度:102
語文別:中文
論文頁數:82
中文關鍵詞:壓電材料即時廣角繞射同步輻射光源
外文關鍵詞:P(VDF-TrFE)Pizoelectricin-situ x-ray
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  • 下載下載:9
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本研究使用即時同步X光繞射同時量測高分子壓電材料P(VDF-TrFE)與摻入的感光材料TiOPc 隨外加溫度,電場和感光作用下的微結構演變進一步區分出隨著溫度、電壓或照光時間控制的效能-結構關係。複合材料相變化時,各相繞射峰強度改變和晶格應變是本研究發現最具相關性的數據。隨各上述變因改變的過程中,微結構的變化,清楚的顯示了(一)相變化對應溫度;(二)晶格應變反應出電壓和感光的效應。本研究並進一步的量化電壓和照光所造成的晶面間距改變對巨觀整體效能的貢獻,以探討P(VDF-TrFE)/TiOPc的製程差異引入的微結構如何改善性能。最後從各種材料(有/無極化,有/無摻TiOPc) 對上述效應的不同反應,進一步去推論造成 P(VDF-TrFE)/TiOPc 巨觀壓電係數 (d33) 改變的原由。我們的結論是(一)極化 (poling)製程可以強化TiOPc與P(VDF-TrFE)彼此的作用力,極化過的薄膜於繞射結果中,受電場與感光控制產生的波動比未極化的薄膜低;(二)摻入TiOPc後,顯著的影響薄膜的壓電性能;(三)TiOPc以感光特質對P(VDF-TrFE)提升對電場的敏感度。
Semi-crystalline polymer, Poly(vinylidene fluoride-co-trifluoroethylene) coupled with TiOPc powder, which has excellent sensitivity to visible light, is expected to bridge photo sensor and piezoelectric actuators. This composite material does not only retains good piezoelectric efficiency and possesses high sensitivity to visible light. The beta-phase P(VDF-TrFE) exhibits a good piezoelectric property. Our sample is composed of P(VDF-TrFE) and with and without TiOPc, respectively. When the samples were heated continuously, applied electrical voltage, light illumination, we used in-situ XRD to measure the microstructure evolution. In this study, we investigated the phase transition induced by heating up to 90℃. We observed the changes of lattices distance subjected to temperature, electric field and light illumination. We also measured the bulk (piezoelectric properties) d33. We found a linear correlation between the macroscopic d33 and microscopic lattice strain. Our equation can well describe the d33 variation and lattice evolution subjected to various temperature and voltages.
中文摘要 I
英文摘要 II
致謝 III
目次 V
圖次 VIII
表次 XII
1. 緒論 1
1.1. 簡介 1
1.2. P(VDF-TrFE) 壓電高分子介紹 3
1.2.1. 壓電材料背景 3
1.2.2. Polyvinylidenefluoride-co-trifluoroethylene P(VDF-TrFE)之性質 5
1.3. 研究動機 10
2. 理論背景與文獻回顧 12
2.1. 壓電高分子材料的發展 12
(a) 拉伸 14
(b) 研磨 15
(c) 退火 15
(d) 極化 16
(e) 共聚物 17
2.2. 壓電與感光材料複合模-P(VDF-TrFE)/TiOPc 19
2.3. 壓電效應回顧 21
2.3.1. 正壓電效應 21
2.3.2. 逆壓電效應 22
3. 實驗及儀器原理 24
3.1. 實驗流程 24
3.2. 樣品製備 26
3.2.1. 實驗樣品與設備 26
3.2.2. 製備過程 26
3.3. 儀器原理 28
3.3.1. 廣角度X光散射 28
3.3.2. 同步光源介紹 30
3.3.3. d33 Meter 31
4. 結果與討論 34
4.1. 繞射圖譜的理論計算 34
4.2. 廣角度X光散射實驗的為結構結果 38
4.2.1. 溫度引入的相變化 38
4.2.2. 溫度引入的晶格變化 42
4.2.3. 電壓引入的晶格變化 45
4.2.4. 照光引入的晶格變化 48
4.3. 壓電系數(d33)量測實驗 52
5. 結論 55
6. 未來工作 58
參考文獻 60
7. 附錄 62
A. 軟體簡介 62
Fit-2D 62
PowderCell 64
GSAS II 66
Matlab 68

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