Effect of deacetylation on wicking behavior of co-electrospun cellulose acetate/polyvinyl alcohol nanofibers blend

详细信息    查看全文

• 作者：Zeeshan Khatri ; Kai Wei ; Byoung-Suhk Kim ; Ick-Soo Kim ; ^{kim@shinshu-u.ac.jp}
• 关键词：Cellulose acetate nanofibers ; Polyvinyl alcohol nanofibers ; Deacetylation ; Rate of wicking ; Co-electrospinning
• 刊名：Carbohydrate Polymers
• 出版年：2012
• 出版时间：14 February, 2012
• 年：2012
• 卷：87
• 期：3
• 页码：2183-2188
• 全文大小：862 K

文摘

Cellulose acetate (CA) nanofibers webs deserve a special attention because of their very good water retention properties. CA nanofibers based biosensor in certain application come into contact with various liquids and requires high degree of wicking rate to transport liquid to its destination. Cellulose acetate (CA)/polyvinyl alcohol (PVA) blended nanofibers were prepared via co-electrospinning using double nozzle for jetting cellulose acetate and polyvinyl alcohol independently. The CA/PVA blend nanofibers webs were deacetylated in aqueous alkaline solution to convert CA in to regenerated cellulose and to remove PVA nanofibers from the raw web. The resultant nanofibers webs were characterized by wicking rate, water contact angle, SEM and FTIR analysis. The results revealed that by varying concentration of PVA solution enhances the wicking rate. Such a nanofibers web may be used in biosensor strip and other medical applications where the high wicking rates are desired.