臺灣博碩士論文加值系統

本研究以皮克林(Pickering)乳化聚合反應，製備出PS/SiO2、PS/CNTs、PS/SiO2/CNTs有機無機奈米複合微球，探討添加奈米碳管與SiO2對於複合顆粒的粒徑大小、導電度及界達電位之影響，進而製備中空SiO2/CNTs微球。 顯微鏡與DLS動態分析儀量測結果顯示，不同pH值的情況下 SiO2無機奈米顆粒包覆於高分子微球表面，得到PS/SiO2複合微球。利用酸性多壁奈米碳管所製得的PS/CNTs-COOH複合微球，以SEM顯微鏡觀察顯示，微球表面皆均勻包覆奈米碳管，導電度也隨著添加奈米碳管的量增加而由7.1x10-3 S/cm至9.4x10-2 S/cm。同時添加SiO2和CNTs-COOH製得的PS/SiO2/CNTs複合微球，經TEM及SEM分析可觀察到表面具有SiO2、CNTs，其導電度也隨著複合顆粒外層碳管的增加，導電度由9.2x10-4 S/cm提升至8.1x10-3 S/cm。最後，使用高溫燒結或溶劑萃取方式移除PS/SiO2/CNTs複合顆粒核心高分子部分，可製備出中空SiO2/CNTs複合顆粒。

PS/SiO2, PS/CNTs, PS/SiO2/CNTs composte microspheres were prepared by Pickering emulsion polymerization in the present paper.The effects of addition of CNTs and SiO2 on the particle size , conductivity and Zate potential.The results of microscope and DLS dynamic analysis,The SiO2 inorganic nanoparticles were coated on the surface of composite microspheres . The microstructures of PS/CNTs-COOH composite microspheres prepared by CNTs-COOH were observed by SEM,The surface of the microspheres was uniformly coated with CNTs, and the conductivity was increased with the addition of carbon nanotubes The amount increased from 7.1x10-3 S/cm to 9.4x10-2 S/cm. Addition of SiO2 and CNTs-COOH prepared PS/SiO2/CNTs　composite microspheres, TEM and SEM analysis be observed on the surface with SiO2, CNTs, the conductivity of the composite particles with the outer layer of carbon tube increases, 9.2x10-4 S/cm up to 8.1x10-3 S/cm. Finally hollow SiO2/CNTs composite particles can be prepared by removing PS/SiO2/CNTs polymer by sintering or solvent extraction.

目錄
摘要 I
目錄 II
圖目錄 VI
表目錄 IX
第一章 緒論 10
第二章 文獻回顧 11
2-1 Pickering乳液 11
2-2 表面活性劑與固體顆粒之差異 13
2-3影響乳液之穩定性之因素 16
2-3-1 pH值 16
2-3-2 水相中電解質的影響 18
2-3-3 固體顆粒濃度 20
2-4 研究動機與目的 22
第三章 實驗方法 23
3-1實驗架構 23
3-2實驗藥品 24
3-3實驗設備及分析儀器 25
3-4 實驗步驟 26
3-4-1 官能化改質奈米碳管 26
3-4-2以不同pH值製備PS/SiO2乳液 26
3-4-3以AIBA起始劑製備PS/CNTs乳液 27
3-4-4 以AIBN起始劑製備PS/CNTs/SiO2複合顆粒 28
3-4-5製備中空CNTs/SiO2複合顆粒 28
3-5實驗分析方法 29
第四章 結果與討論 30
4-1 MWCNTs官能化分析 30
4-1-1 FT-IR與Raman光譜分析 30
4-1-2 TEM與導電度分析 32
4-2以不同pH值製備PS/SiO2複合顆粒 34
4-2-1 粒徑分布與界達電位分析 34
4-2-2 TEM顯微鏡分析 36
4-3以AIBA起始劑製備PS/CNTs-COOH複合顆粒 39
4-3-1 粒徑分布與界達電位分析 39
4-3-2 SEM與導電度分析 41
4-4以AIBN起始劑製備PS/SiO2/CNTs複合顆粒 44
4-4-1 DLS動態分析與導電度分析 44
4-4-2 SEM顯微鏡分析與EDS分析 46
4-5製備中空SiO2/CNTs (SC)複合顆粒 49
4-5-1 TEM顯微鏡與DLS動態分析 49
4-5-2 TGA熱裂解與導電度分析 50
4-6中空SiO2/CNTs複合顆粒應用於生物感測器 54
4-6-1 中空SiO2/CNTs複合顆粒阻抗測試 55
第五章 結論 57
第六章 參考文獻 58

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