【摘要】 以大腹圆蛛包卵丝的六氟异丙醇(HFIP)溶液为纺丝液,采用静电纺丝的方法制得直径小于100nm的纳米再生蜘蛛包卵丝。研究结果表明,在纺丝液的质量百分比为1%的条件下,电场强度取1.0～2.5kV/㎝时,能纺制得到连续、光滑、均匀的纳米再生包卵丝,并且在研究设定的工艺条件下,电压和喷丝头与接收屏之间的距离(C-SD)对纤维的形态结构没有实质性的影响。虽然与天然包卵丝相比,纳米再生包卵丝中呈规整的β-折叠结构的分子含量较少,纤维的结晶度也较低,但它具有稳定的几何形态,在水中几乎不收缩,并且拉伸强度与天然外层包卵丝相似。更多还原

【Abstract】 The nano-scale regenerated spider egg-case fibers(ERESF)(average diameter <100nm) were obtained by electrospinning egg-case silk HFIP solution.The results show that continuous stain and uniform regenerated spider egg-case fibers can be produced by 1wt% solution with the electric field strength ranging from 1.0kV/㎝ to 2.5 kV/㎝.Meanwhile,the voltage and C-SD have no great effect on the configuration of ERESF.The content of molecules withβ-sheet conformations and crystallity of ERESF are lower than that of natural egg-case silk.However,the ERESF non-woven mat is stable in water and has similar stress to natural out-egg-case silk.更多还原