Effect of Nanofibers Crosslinking on Thermal and Mechanical properties of PAA Electrospun Membranes

The effect of modifying poly (acrylic acid) nanofibers through crosslinking using glutaraldehyde is studied in the present work. Before crosslinking process, the surface of PAA nanofibers was modified by using 3-aminopropyltriethoxysilane. Scanning electron microscopy was used to determine morphology of samples. Results indicated that crosslinking caused significant increment in tensile properties so that tensile strength and modulus of samples became 1.86, 4.39 fold respectively. Also crosslinking process increased thermal stability of nanofibers

Keywords:

poly (acrylic acid) , Nanofibers , electrospinning , crosslinking , mechanical properties