使用異丙醇與水進行靜電紡絲製備疏水型聚甲基丙烯酸甲酯與聚醋酸乙烯酯混摻之高分子次微米纖維

Using 2-propanol and water to prepare hydrophobic poly(methyl methacrylate)/poly(vinyl acetate) blend submicron fibers by electrospinning

張慧怡(Hui-Yi Chang)

指導教授 ： 張朝欽

淡江大學/工學院/化學工程與材料工程學系碩士班/碩士(2019年)

https://doi.org/10.6846/TKU.2019.00526

摘要

本研究以異丙醇與蒸餾水為共溶劑使用靜電紡絲法製備疏水性高分子次微米纖維，分為聚甲基丙烯酸甲酯纖維與聚甲基丙烯酸甲酯/聚醋酸乙烯酯混摻纖維兩個部分。
在特定比例下溶解聚甲基丙烯酸甲酯，異於傳統使用的氯甲烷、二氯甲烷、甲苯等高危害性溶劑，利用靜電紡絲技術，獲得次微米/奈米纖維，直徑約0.65-0.85微米，並具有高疏水性，對水的接觸角可達133 °，經滴水測試可確定纖維不會被水溶解或破壞變形。
因聚甲基丙烯酸甲酯的材料特性偏剛硬脆斷，其所紡纖維易折斷，為了解決此問題，研究亦在環保的共溶劑中加入聚醋酸乙烯酯以提升柔軟性，降低複合材料之玻璃轉移溫度，靜電紡絲所獲得的纖維直徑約0.5-3微米，同樣具有高疏水性，對水的接觸角可達133 °，經滴水測試可確定纖維不被水溶解或破壞變形，期盼本研究之系統及製程能達到節能、減污及環保循環的特點。

關鍵字

靜電紡絲 ； 聚甲基丙烯酸甲酯 ； 聚醋酸乙烯酯 ； 疏水性 ； 共溶劑 ； 異丙醇 ； 水

並列摘要

In this study, it was adopted rubbing alcohol (2-propanol/water) as the solvent to prepare poly(methyl methacrylate) (PMMA) submicron fibers and PMMA/poly(vinyl acetate) (PVAc) blend submicron fibers by the electrospinning technique. The solvents commonly used to dissolve PMMA, such as acetone, tetrahydrofuran, chloroform, toluene, etc., are harmful and environmentally unfriendly. Therefore, the green and economical co-solvent system, 2-propanol + water, were employed. It was found that both PMMA and PMMA/PVAc solutions can be electrospun near room temperature to yield good quality fibers. By controlling the solution concentration and spinning parameters (e.g., voltage, diameter of needle, solution conductivity, etc.) fibers with diameters of 0.5~3 μm were obtainable. In addition, both electrospun PMMA and PMMA/PVAc mats were waterproof and demonstrated superb hydrophobicity with contact angles > 130 °, and the later has higher strength in terms of bendability.

並列關鍵字

electrospinning ； poly(methyl methacrylate) ； poly(vinyl acetate) ； hydrophobic ； cosolvents ； 2-propanol ； water

參考文獻

參考文獻

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