Electrospinning and rheological behavior of poly (vinyl alcohol)/collagen blended solutions |
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| Authors: | Xiaoli?Zhang Email author" target="_blank">Keyong?TangEmail author Xuejing?Zheng |
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| Affiliation: | 1.College of Materials Science and Engineering,Zhengzhou University,Zhengzhou,China;2.College of Textile Engineering,Zhongyuan University of Technology,Zhengzhou,China |
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| Abstract: | Poly(vinyl alcohol)/collagen (PVA/COL) micro-nanofibers were successfully prepared by electrospinning process. Water, green, and non-toxic was used as the solvent. The electrospun mats consisted of micro-nanoscale fibers with mean diameter ranging from approximately 363 nm to 179 nm. It was observed that the mean diameters of PVA/COL electrospun fibers decreased with increasing collagen content. The effects of PVA/COL blending ratio on the rheological behavior of PVA/COL blended solutions were investigated by rotate rheometer. It was found that PVA/COL blended solutions behaved as Non-Newtonian fluids. With increasing collagen content, the Non-Newtonian index (n) of PVA/COL blended solutions decreased. Meanwhile, a linear relationship was found between the Non-Newtonian index (n) and the mean diameters of the PVA/COL micronanofibers. The chemical structures of PVA/COL electrospun fibers were also characterized by FTIR. |
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