The structure and property of coelectrospun MWNTs/fibroin/polyamide nanofiber mat

Electrospun silk fibroin fiber mats have some drawbacks,such as instability in water and poor mechanical properties.In our early research,these limitations were improved by coelectrospun regenerated silk fibroin with polyamide 6/66.In this paper,MWNTs were used to reinforce fibroin/polyamide 6/66 blended fibers by electrospinning.The results indicated that with the increase of MWNTs not only the diameter of fiber decreased to under 90nm,but also the color of fiber mats changed from white to black.Otherwise the crystal,thermal stability of the composite fiber and tensile property of the fiber mat was improved by the addition of MWNTs.