Bioinspired Silk Fiber Spinning System via Automated Track-drawing

Regenerated silk fibroin (SF) fibers were electrospun and post drawn up to a draw ratio (DR) of two. This post drawing process resulted in enhanced mechanical strength, increased intermolecular β-sheet content and higher glass transition and degradation temperatures.将再生丝素蛋白（silk fibroin, SF）纤维进行静电纺丝，并对其实施最高拉伸比（draw ratio, DR）为2的后拉伸工艺。该后拉伸过程可使纤维的机械强度得到增强，分子间β折叠含量增加，同时使其玻璃化转变温度与降解温度升高。