Electrospinning and Rheological Behavior of Poly(vinyl alcohol)/Collagen Blended Solutions
来源期刊:Journal Of Wuhan University Of Technology Materials Science Edition2015年第4期
论文作者:张晓莉 汤克勇 ZHENG Xuejing
文章页码:840 - 846
摘 要: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.
张晓莉1,2,汤克勇1,ZHENG Xuejing1
1. College of Materials Science and Engineering, Zhengzhou University2. College of Textile Engineering,Zhongyuan University of Technology
摘 要: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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