乙酸甲酯溶劑進行靜電紡絲聚乳酸纖維之研究

Electrospinning of poly (lactic acid) by using methyl acetate solvents

趙潁鈁(Ying-Fang Chao)

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.2019.00464

摘要

此研究主要以溶劑乙酸甲酯溶解聚乳酸(2002D)製備疏水型高分子靜電紡絲奈米纖維薄膜。過程也提及其他酯類的使用以及成果的分析。有別於傳統多選擇在二氯甲烷、己烷、二甲基甲醯胺等環保局列管毒化物溶劑，主要利用不同環境友善非列管型之酯類溶劑配置聚乳酸溶液。最佳的聚乳酸溶液條件透過靜電紡絲，可收集到約的7微米的纖維，對水的接觸角約123。，具高疏水性，並可以維持長達一段時間不滲水或被溶解扭曲。所得到的纖維表面有孔洞的結構，平均直徑約為200奈米的大小。靜電紡絲纖維膜使用DSC、FTIR-ATR、XRD探討加工前與加工後的結晶度和官能基影響。

關鍵字

聚乳酸 ； 靜電紡絲 ； 奈米纖維 ； 乙酸甲酯 ； 環境友善 ； 孔洞 ； 疏水性

並列摘要

Hydrophobic polymer electrospun nanofiber film was prepared from pure solvent methyl acetate and polylactic acid (2002D) in this study. The process also mentions the use of other esters and the analysis of results. Different from dichloromethane, hexane, dimethylformamide and other environmental protection bureaus to toxic solvent, we used different environmentally friendly ester solvents to configure polylactic acid solution. The optimum polylactic acid solution conditions through electrospinning can collect about 7 microns of fiber with a contact angle of about 123 with distilled water. It is highly hydrophobic and can be maintained for a period of time without seeping or being dissolved and distorted. Fiber surface has a hollow structure with an average diameter of about 200 nm in result. The electrospun fiber membranes were examined for crystallinity and functional group by using DSC, FTIR-ATR, and XRD for the effects before and after processing.

並列關鍵字

poly (lactic acid) ； electrospinning ； ethyl acetate ； microfibers ； environmentally friendly ； porous ； Hydrophobic

參考文獻

[1] J. Doshi and D. H. Reneker, "Electrospinning process and applications of electrospun fibers." Journal of Electrostatics, vol. 35, no. 2-3, pp.151-160, 1995.

[2] D. Li and Y. Xia, "Electrospinning of nanofibers: reinventing the wheel?." Advanced Materials, vol. 16, no. 14, pp. 1151-1170, 2004.

[3] F. E. Ahmed, B. S. Lalia, and R. Hashaikeh, "A review on electrospinning for membrane fabrication: challenges and applications." Desalination, vol. 356, pp. 15-30, 2015.

[4] M. Bognitzki, W. Czado, T. Frese, A. Schaper, M. Hellwig, M. Steinhart, A. Greiner, and J. Wendorff, "Nanostructured fibers via electrospinning." Advanced Materials, vol. 13, no. 1, pp. 70-72. 2001.

[5] K. H. Lee, H. Y. Kim, H. J. Bang, Y. H. Jung, and S. G. Lee, "The change of bead morphology formed on electrospun polystyrene fibers." Polymer, vol. 44, no. 14, pp. 4029-4034, 2003.