- 學位論文
以靜電紡絲製備聚乙烯醇/銀/二氧化鈦奈米纖維薄膜於抗菌性之研究
The Antibacterial Activity of PVA/Ag/TiO2 Nano-fiber membranes via eletrospinning
摘要
本研究探討以靜電紡絲製備奈米纖維薄膜，基材上選擇聚乙烯醇，聚乙烯醇為水溶性對人體無害，而二氧化鈦具有抗菌、無毒性、脫臭、親水性等特性，能紡製出理想之環保性纖維，期望藉由此研究使聚乙烯醇纖維的應用更廣泛。 聚乙烯醇在製程的過程不會因溶劑的使用對環境造成負擔，並添加不同比例之奈米二氧化鈦作為功能材，製得PVA/TiO2纖維複合薄膜，再藉由添加奈米銀水溶液製備出PVA/Ag/TiO2纖維複合薄膜。以SEM觀察纖維平均細度約在150~270nm。以EDS做元素分析，圖譜中出現Ti和Ag元素特徵峰。以XRD分析顯示有TiO2與Ag訊號峰。以ATR-FTIR對其表面特徵官能基分析，發現並沒有其他特徵峰出現，且特徵峰值亦無任何偏移現象，因此推斷奈米二氧化鈦及奈米銀水溶液之添加並不會破壞聚乙烯醇原先的化學結構而為物理混摻。DSC與TGA熱性質分析結果，隨著TiO2粉體添加量的提升，熱裂解溫度也隨之提高。以UV/Visible測試抗紫外線效果，發現隨著TiO2粉體量增加其抗紫外線有增強勢。而在抗菌效果方面，隨著TiO2粉體量的增加，抑菌效果也有增加的趨勢。綜合以上結果顯示，經添加適量的奈米銀水溶液後，可提升光催化效率，並且優良的抗菌特性。
並列摘要
In this study, nano-fiber membrane was prepared by electrospinning method, the substrate is polyvinyl alcohol, a water-soluble polyvinyl alcohol is harmless, while titanium dioxide has antibacterial, non-toxic, deodorization, hydrophilicity and other characteristics can be an ideal environment spun fibers, expect by this study to make more extensive use of polyvinyl alcohol fiber. During the manufacturing process of polyvinyl alcohol by the use of a solvent is not a burden on the environment. Adding different proportions of nano titanium dioxide as a function of material prepared PVA / TiO2 fiber composite film, and then by adding an aqueous solution of silver nanoparticles prepared PVA / Ag / TiO2 fiber composite film. The morphology of fibrous membranes was investigated by the SEM and the results showed that its average diameters were in the range of 150nm~270nm. The EDS results showed the featuring peak of Ti and Ag. The XRD analysis showed TiO2 and Ag peak. The spectra of FTIR analysis of its surface features functional groups and found no other peaks appeared, and there is no shift phenomenon characteristic peak, so adding inferred nano-titanium dioxide and nano silver aqueous solution of polyvinyl alcohol does not destroy the original the chemical structure and physical blending. DSC and TGA thermal properties of the analytical results, with the addition of TiO2 powder to enhance the pyrolysis temperature increases. The UV / Visible resistance test, found that as the amount of TiO2 powder to increase its potential with enhanced UV resistance. The antibacterial effect, increases the amount of TiO2 powder, antibacterial effect is an increasing trend, and found that nano silver antimicrobial solution so that the rate of increase and achieve sterilization effect. These results show that adding the appropriate amount of aqueous nano silver solution, can enhance the photocatalytic efficiency and excellent antibacterial properties.
參考文獻
延伸閱讀
- 白倩榕（2010）。聚氧乙烯/銀/二氧化鈦奈米纖維膜之製作與抗菌性之研究〔碩士論文，國立臺北科技大學〕。華藝線上圖書館。https://doi.org/10.6841/NTUT.2010.00077
- 古家玲（2018）。利用靜電紡絲法製備疏水性 聚二甲基矽氧烷/聚甲基丙烯酸甲酯纖維膜及其於二氧化碳捕獲之應用〔碩士論文，中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu201800408
- 簡郁珊（2014）。靜電紡絲製備具生物相容性之二氧化矽奈米纖維及其於神經組織工程之應用〔碩士論文，中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu201400799
- 葉謙（2014）。靜電紡絲法製備聚二甲基矽氧烷/聚二氟乙烯奈米纖維膜及其於二氧化碳補捉之應用〔碩士論文，中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu201400804
- 賴靜煒（2012）。Evaluation of bioactivity on anodized titanium surface by diameter change of TiO2 nanotube〔碩士論文，中山醫學大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0003-3008201215265700