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| Analysis of Electrospun Nylon 6 Nanofibrous Membrane as Filters |
| Gui-Bo Yin |
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Abstract In this work, nylon 6 was firstly dissolved in 98% formic acid with the concentration of 13wt%, and then electrospun to obtain nanofibrous membranes. The morphology of the electrospun nylon 6 nanofibrous membranes was observed by scanning electron microscopy (SEM), the filtration efficiency and the mechanical properties were also examined. The results show that the average diameter of electrospun nylon 6 fiber was 217 nm, the surface average pore diameter was 234 nm, the thickness was 31 to 60 μm, the breaking tenacity was up to 8.06 Mpa and the elongation at break reached 52.8%; when the polyester fabric substrate was covered with the electrospun nylon 6 nanofiber membrane with the density of 1.25g/m2, at the airflow speed of 2.83l/min, the separation for 1μm, 0.5μm 0.3μm particles was 92.16%, 89.66%, 87.38%, respectively. In comparison, the fabric substrate just gave 9.92% separation for 1μm particles and had no filtration effect for 0.5μm and 0.3μm particles. The separation efficiency was improved by using a thicker electrospun membrane with the density of 2.5g/m2, the filtration efficiency could reach 97.03%, 96.23%, 95.65% for 1μm, 0.5μm 0.3μm particles repectively, but the permeability did not increase significantly. The excellent filtration performance, combined with a simple production process, suggested tremendous potential application as high-precision filter materials.
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| Cite this article: |
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Gui-Bo Yin. Analysis of Electrospun Nylon 6 Nanofibrous Membrane as Filters[J]. Journal of Fiber Bioengineering and Informatics, 2010, 3(3): 137-141.
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2010, Vol. 3 
