A study on utilizing electrospun polyvinylacetate(PVAc) for HEPA filter media
Polyvinylacetate(PVAc) nanofiber were prepared by electrospinning for utilizing HEPA filter media. Electrospinning was performed with various concentration 5wt％ to 30wt％ in ethanol under following electrospining conditions; 100 §?/min flow rate, 15kV voltage and 10cm tip-to-collector distanced(TCD). As the PVAc solution concentration increased, the morphology changed from bead fiber to a uniform structure and the fiber diameter increased gradually up to 1616nm. At below PVAc 10wt％ concentration, bead formed instead of fiber. For the PVAc 10wt％, 15wt％, 20wt％ and 25wt％, the average diameter of fibers were 301, 782, 1587 and 1616nm respectively. The filter performance measured by penetration efficiency and pressure drop at the 5L/min condition with NaCl particles from 0.1um to 0.6um ranges. In case of cotton media, before electrospun the efficiency is 4.068％ but efficiency is increased up to 99.999％ after electrospun time 120minute with 20wt％ PVAc. For the unwoven felt media initial efficiency is 23.908％ and increased up to 87.336％ and 99.745％ at electrospun time 120min and 160min respectively.
Electrospinning Nanofiber Polyvinylacetate(PVAc) HEPA filter
Ju Young Park Sung Woo Han Chang Hoon Yoo Maneg Su Kim Han In Hwa Lee
Department of Environmental Engineering, BK21 Team for Biohydrogen Production,Chosun University, Gwangju 501-759 Korea
国际会议
The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)
北京
英文
2007-10-14（万方平台首次上网日期，不代表论文的发表时间）