Effect on the Electrospinnability by Adding Surfactant in Gelatin Aqueous Solution
Water is a good solvent for the gelatin nanofibers prepared by electrospinning process, but the spinning temperature must be maintained around 60℃ to 65℃. Gelatin mats with ultrafine fibers varied from 178 nm to 267 nm can be prepared under the optimized electrospinning conditions when the concentration varied from 15 wt ％ to 25 wt ％. Beads is evidence in regular arrays along ultrafibers when the gelatin concentration was below 15 w t ％. Sodium dodecyl sulfate (SDS) was added to improve the electrospinnability of the gelatin solution of 13 wt ％t. It has been recognized that the surface tension of gelatin aqueous solution was decreased when SDS was added, meanwhile the conductivity and the viscosity increased. With the SDS content of 0.3 wt ％ and 0.5 wt ％, beads along the gelatin fibers vanished. Smooth and uniform ultrafine gelatin fibers with fibers diameter 153 nm and 132 nm were obtained.
Gelatin Electrospinning Ultrafine fibers Surfactant
Ruitian Zhu Yurong Yan Guifeng Su
Department of Polymer Material and Engineering, South China University of Technology, Guangzhou, 510640
国际会议
上海
英文
191-194
2009-05-27（万方平台首次上网日期，不代表论文的发表时间）