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Author(s): |
Jie Li, College of Textile and Clothing, Soochow University, Suzhou, Jiangsu 215021, China
Yang Liu, College of Textile and Clothing, Soochow University, Suzhou, Jiangsu 215021, China
Zhi-juan Pan, National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, Jiangsu 215123, China |
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Abstract: |
Electrospinning technique is one of the hot topics all over the world, and the main form of the electrospun product is generally nonwoven fiber mat with poor mechanical properties. Consecutive PA6 / MWNTs nanofiber filaments were successfully fabricated by an improved electrospinning method .We post-drawn the as-spun yarns and studied the effects of post-drawn ways(wet or dry) and ratios on the structures and mechanical properties . The results show that with the increase of the draw ratio, the diameters of filament and fiber decrease, while the degree of fiber orientation arrangement and crystallinity is obviously improved, the breaking strength and initial modulus of the yarns increase. The effect of wet post-drawn is finer than dry post-drawn , as the maximum wet draw ratio reaches 1.7, the breaking strength and initial modulus of the filament is respectively 2.64 times and 4.2 times as compared to that of the control sample while the maximum dry draw ratio reaches 1.6, the breaking strength and initial modulus of the filament is respectively only 2.47 times and 2.35 times improved.
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