- 學位論文
以田口實驗設計法製備PAN奈米纖維濾膜與其功能性分析研究
A Study on Fabrication and Functional Properties of PAN Filtration Nanofiber Membrane by Taguchi Method
摘要
本研究主要係使用靜電紡絲技術製備出多孔性之聚丙烯腈纖維膜，因田口實驗設計法之高再現性、高品質、高穩定度與高精準度並且擁有低實驗成本，方選用田口實驗設計法來設計實驗參數並製造出多孔性纖維膜之最佳參數。 本研究之實驗（I）係利用田口實驗法設計實驗參數，製備以不同濃度、推進速率、電壓、距離參數之奈米纖維薄膜，並對此纖維薄膜進行檢測，觀察其纖維細度及平均值作田口實驗法分析，藉以找出紡絲之最佳參數。 本研究之實驗（Ⅱ）係以示差掃描熱量分析儀(DSC)與熱重量分析儀(TGA)熱分析結果，選取氧化條件參數，分別以預氧化溫度、最終加熱時間、最終持溫溫度、有無液態氮處理等作為作為氧化參數，並且以抗拉強度及纖維細度作田口實驗法分析。 本研究之實驗（III）係由上述兩組田口實驗法分析所得之最佳參數進行實驗比較氧化前後紡絲纖維薄膜之IR、DSC、TGA、SEM、XRD、抗拉強度以及亞甲基藍之差異。 根據第一次田口實驗分析結果，選擇聚丙烯腈濃度8 wt%、電壓10 kV、推進速率1.0 mL/hr、距離10 cm，為電紡PAN之最佳紡絲參數，並且依第二次田口實驗分析選擇最終氧化溫度在290℃，最終持溫時間為10 min，升溫速率15℃/min，預氧化完成後浸泡液態氮10 min做為最佳預氧化條件。
並列摘要
This study using the electrospinning technique to prepare porous polyacrylonitrile fiber membrane, due to the Taguchi experimental design method of high reproducibility, high quality, high stability and high accuracy and low experimental cost, the parties choose Taguchidesign method to design the experimental parameters and create the optimum parameters of the porous fiber membrane. The experiments in this study (I) is the use of the Taguchi method of experimental parameters, preparation, advance rate, voltage, and distance parameters with different concentrations of nano-fiber membrane, and this fiber membrane were detected to observe the fiber fineness and the average for the Taguchi method analysis in order to find the best parameters of the spinning. Of this research experiment (Ⅱ) Department shows differential scanning thermal volume analysis instrument (DSC) and thermal heavy volume Analyzer (TGA) Thermal Select the oxidation condition parameters, in order to pre-oxidation temperature, the final heating time, the final hold temperature temperature, with or without liquid nitrogen as the oxidation parameters, and the Taguchi method to the tensile strength and fiber fineness. Experiments in this study (III) are the best parameters of the analysis obtained by the above-mentioned two groups of the Taguchi method, the experiments compare before and after oxidation spinning fiber membrane IR, DSC, TGA, of SEM, XRD, tensile strength and methylene blue of the differences. First Taguchi analysis polyacrylonitrile concentration of 8 wt.% Voltage 10 kV, the advance rate of 1.0 ml / hr distance of 10cm, the best electro-spun PAN spinning parameters, and according to the second Taguchi experiment analysis to select the final oxidation temperature of 290 ℃, heating time 10min, heating rate 15 ℃ / min, soaking nitrogen for 10 min after the completion of the pre-oxidation as the best pre-oxidation conditions.