本研究使用自行組裝熔融型靜電紡絲設備開發聚乳酸(PLA)靜電紡絲纖維膜，探討不同纖維膜的基重對過濾效能的影響，並應用於空氣過濾。
實驗第1部份為探討不同紡絲參數對纖維的影響，利用不同的工作電壓進行測試，找出最佳電紡參數，操作工作電壓為30 kV、35 kV、40 kV，纖維直徑為14.71 μm、11.97 μm、7.48 μm，再來靜電紡絲成纖維膜，進行孔隙率、孔徑分佈、表面電位的分析，最後進行過濾效能的檢測，探討不同的纖維基重對過濾效能的影響。另一方面，結合熔融型靜電紡絲與溶液型靜電紡絲，將熔融靜電紡絲纖維膜複合溶液型靜電紡絲奈米纖維為微奈米靜電紡絲複合纖維膜，進行孔徑分佈以及過濾效能分析，並與相關文獻相互探討其過濾效能的影響。
由結果顯示，熔融靜電紡絲纖維膜的孔隙率高達92 %，孔徑分佈最終為90 μm，表面電位在穩定後為2 kV，過濾效能為70 %，壓損係數為0.2 mmH2O；微奈米複合纖維膜的孔徑分佈為11 μm，過濾效能為96 %，壓損係數為6.5 mmH2O。

In this study, Polylactic acid (PLA)-based membranes were manufactured by the technique of melting electrospinning to explore the effect of filtration efficiency for different basis weight of fiber membrane, and applied to air filtration.
The fiber diameter range of PLA fiber membranes approached 7.48 μm to 14.71 μm as the applied voltage reached corresponding optimum parameter. The porosity, pore size distribution, surface potential, and filtration efficiency were tested for fiber membranes. On the other hand, combining melting type electrospinning and solution type electrospinning to micro-nano electrospinning fiber membranes to explore the effect of filtration efficiency.
The results show that, porosity was 92 %, pore size was 90 μm, surface potential was 2 kV after stabilization, filtration efficiency was 70 %, and pressure drop was 0.2 mmH2O for melting electrospinning fiber membranes. For micro-nano electrospinning fiber membranes, pore size was 11 μm, filtration efficiency was 96 %, and pressure drop was 6.5 mmH2O.

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