靜電紡絲法與熱處理製備矽-鈦基薄膜之研究

Preparation of Si-Ti Base Thin Film by Electrospinning And Heat Treatment

汪穩宇(Wen-Yu Wang)

指導教授 ： 鍾卓良

義守大學/理工學院/材料科學與工程學系/碩士(2019年)

摘要

本研究利用單軸靜電紡絲製備，以及調整熱處理參數製備具有親水特性的靜電紡絲奈米纖維以及奈米級薄膜。
在本研究中，我們使用0.5g聚乙烯吡咯烷（PVP，1,300,000 Mw）、6g酒精、1.5gDMF、0.05g SiO2粉末作為前體溶液，並緩慢加入3g鹽酸與0.5g鈦酸四丁酯，通過單針靜電紡絲製備紡絲纖維到石英基板上，並以分別以400°C、500°C、600°C、700°C、800°C、900°C熱處理以及退火1小時製備纖維與薄膜。選擇材料的動機是TiO2其化學特性極佳，不易被腐蝕與親水性適合作為光觸媒等應用，而SiO2同樣具有優異的化學和物理特性和網狀特性，且會與石英基板產生擴散現象。因此，我們選擇SiO2以及鈦酸四丁酯為要添加的基質，以PVP、TiO2包覆SiO2的方式進行靜電紡絲製成來製備連續的纖維結構。在實驗中，我們發現SiO2與鈦酸四丁酯混合的纖維經過調整熱處理速率後可以轉化成薄膜。樣品通過多功能場發射掃描電子顯微鏡（FE-SEM）、X射線衍射分析儀（XRD）、熱重分析（TGA）、傅立葉變換紅外光譜（FT-IR）、光致發光光譜儀(PL)、紫外可見分光光度法（UV-Vis）和接觸角測試儀(Contact Angle)、百格測驗(Cross-Cut Method)測試奈米纖維以及薄膜的性質。

關鍵字

靜電紡絲 ； 薄膜 ； 奈米纖維

並列摘要

In today's Nanotechnology, the rapid development and many studies have also been proposed, making it widely used in many different fields. At the same time, electrospinning is used to prepare nanofibers (nanofibers), for example: drug release, biomedical Materials, applications of filter media, etc.
In this study, we used 0.5g of polyvinylpyrrolidine (PVP, 1,300,000 Mw), 6g of ethanol, 1.5g of Dimethylformamide, 0.3g of hydrochloric acid, 0.05g of SiO2 powder as the precursor solution, and slowly added tetrabutyl titanate to prepare the spun fiber by single-needle electrospinning, electrospun was used to prepare the spun fiber onto a quartz substrate, heat-treated at 400°C, 500°C, 600°C, 700°C, 800°C, 900°C and annealed for 1 hour to prepare fibers and films. The motivation for selecting materials is that SiO2 has network properties and excellent chemical and physical properties. Therefore, we chose SiO2 as the matrix to be added, and the fibers will assume a bead structure. Later, due to the good optics, electrical and chemical properties of Si-Ti based compounds, which were suitable for use in photovoltaic materials, attempts were made to add tetrabutyl titanate and found that the structure of SiO2 fibers was produced after the addition of tetrabutyl titanate. After high temperature heat treatment, it can be converted into a film.. The sample was passed through by Multi-functional Field-Emission Scanning Electron Microscope (FE-SEM), X-ray diffraction analyzer (XRD), Thermogravimetric Analysis(TGA), Fourier-transform infrared spectroscopy (FT-IR), Photoluminescence (PL) and Contact Angle Tester, Corss-Cut Method analyze the properties of nanofibers.

並列關鍵字

Electrospinning ； film ； nanofibers ； PVP ； SiO2 ； TiO2

參考文獻

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