丝绸2011，Vol.48Issue(1)：20-23,4.
静电纺再生丝素蛋白纳米纤维膜的工艺及性能
Technology and properties of regenerated bombyx mori silk fibroin nano-fiber membrane by electrospinning method
摘要
Abstract
In this study, electrospinning method was used to fabricate the regenerated Bombyx mori silk fibroin nano-fiber membrane by using formic acid as the solvent.The effects of silk fibroin concentration, applied voltage, flow rate and tip-to-collection plate distance on the fiber morphology and diameter were systematically evaluated.The results showed that both the silk fibroin concentration and the applied voltage were the most important parameters in producing the uniform and smooth cylindrical fibers less than 250 nm in diameter.The conformation of regenerated silk fibroin nano-fiber was transformed from random coil to β-sheet after the posttreatment with 90 ％ (v/v) ethanol solution.Under the optimal conditions, the as-spun nano-fiber membrane has low water absorption, excellent moisture permeability to keep a suitable humidity environment.Moreover, its tensile strength, breaking strain and tensile modulus values were (12.9±3.1) MPa, (10.5±1.9) ％ and (309±41)MPa, respectively.关键词
静电纺丝/丝素蛋白/纳米纤维膜/吸水率/透湿率/拉伸模量分类
通用工业技术引用本文复制引用
黄建,刘琳,姚菊明..静电纺再生丝素蛋白纳米纤维膜的工艺及性能[J].丝绸,2011,48(1):20-23,4.基金项目
教育部新世纪优秀人才支持计划(NCET070763) （NCET070763）
