Production of submicron diameter fibers by two-fluid electrospinning process
- 申请公布号：
- US2006213829(A1)
- 申请号：
- US20050089931
- 申请日期：
- 2005.03.25
- 申请公布日期：
- 2006.09.28
- 申请人：
- RUTLEDGE GREGORY C;YU JIAN H;FRIDRIKH SERGEY V
- 发明人：
- RUTLEDGE GREGORY C.;YU JIAN H.;FRIDRIKH SERGEY V.
- 分类号：
- B01D24/00;B01D39/00
- 主分类号：
- B01D24/00
- 摘要：
- Electrospinning of materials that are difficult or impossible to process into nanofibers by conventional fiber-forming techniques or by electrospinning are prepared by an electrospinning procedure which uses an electrospinnable outer "shell" fluid around an inner "core" fluid, which may or may not be electrospinnable, to form nanofibers of the inner core fluid having a core/shell morphology. The resulting shell around the nanofiber can remain in place or be removed during post-processing with the core of the fiber remaining intact. The dual-fluid electrospinning process can produce core fibers having diameters less than 100 nm, insulated nanowires, as well as tough, bio-compatible silk fibers. Alternatively, the core can be removed leaving a hollow fiber of the shell fluid.
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