Development and application of functional microtube array membranes by the co-axial electrospinning technique.

碩士 === 國立臺灣師範大學 === 化學系 === 101 === In this study, we manufacture functional microtube array membrane with co-axial electrospinning, were used in chromatography and spectroscopy. Experiments were made use of seven thousand five hundred volts to create a high voltage electric field as the driving for...

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Bibliographic Details
Main Authors: Huan-An Lee, 李桓安
Other Authors: Cheng-Huang Lin
Format: Others
Language:zh-TW
Published: 2013
Online Access:http://ndltd.ncl.edu.tw/handle/60638559903128581399
Description
Summary:碩士 === 國立臺灣師範大學 === 化學系 === 101 === In this study, we manufacture functional microtube array membrane with co-axial electrospinning, were used in chromatography and spectroscopy. Experiments were made use of seven thousand five hundred volts to create a high voltage electric field as the driving force, shooting multi-hole hollow fiber via electrospray and fiber will be collected by collecting drum side by side to form microtube array membrane. Hollow fiber wall porosity can be regulated with the experimental parameters, and the diameter of membrane is about 20 μm, the wall thin 2 μm approximately. Microtube array membrane has excellent adsorption characteristics, the adsorbed organic gases can be quickly desorbed after heating. Combine with gas chromatography can be used as high efficiency and repeatedly absorption / desorption materials. For example, 1 mg polylactic acid fiber can adsorb / desorb about 0.15 mg acetone steam. In addition, the electrospinning method is very easy to mix a variety of nanoscale particles in the fiber wall. At last, we choose Malachite green as the target compound, via the microtube array membrane contain with nanosilver particle. We can get a very clear spectra of malachite green based on surface-enhanced Raman effect. Moreover, nanosilver particle exist in solid type can be stored much longer than liquid type.