Department of Chemical Engineering and Applied Chemistry, College of Engineering, Chungnam National University, 99 Daehak-ro (st), Yuseong-gu, Daejeon, 305-764, Republic of Korea.
Sci Rep. 2017 Jan 25;7:41424. doi: 10.1038/srep41424.
Although electrospinning is considered a powerful and generic tool for the preparation of nanofiber webs, several issues still need to be overcome for real-world applications. Most of these issues stem from the use of a syringe-based system, where the key factor influencing successful electrospinning is the maintenance of several subtle balances such as those of between the mass and the electrical state. It is extremely difficult to maintain these balances throughout the spinning process until all the polymeric solution in the syringe has been consumed. To overcome these limitations, we have developed a syringeless electrospinning technique as an alternative and efficient means of preparing a nanofiber web. This new technique uses a helically probed rotating cylinder. This technique can not only cover conventional methods, but also provides several advantages over syringe-based and needless electrospinning in terms of productivity (6 times higher) and processibility. For example, we can produce nanofibers with highly crystalline polymers and nanofiber-webs comprising networks of several different polymers, which is sometimes difficult in conventional electrospinning. In addition, this method provides several benefits for colloidal electrospinning as well. This method should help expand the range of applications for electrospun nanofiber webs in the near future.
尽管静电纺丝被认为是制备纳米纤维网的一种强大且通用的工具，但仍有几个问题需要克服才能实现实际应用。这些问题大多源于基于注射器的系统，在该系统中，影响静电纺丝成功的关键因素是维持几个微妙的平衡，例如质量和电状态之间的平衡。在注射器中的所有聚合物溶液都被消耗之前，很难在整个纺丝过程中维持这些平衡。为了克服这些限制，我们开发了一种无注射器静电纺丝技术作为制备纳米纤维网的替代和有效方法。这种新技术使用螺旋探测旋转圆柱。与基于注射器和无针静电纺丝相比，这种新技术不仅可以覆盖常规方法，而且在生产率（高 6 倍）和可加工性方面具有几个优势。例如，我们可以用高结晶聚合物生产纳米纤维，也可以生产由几种不同聚合物组成的网络的纳米纤维网，这在常规静电纺丝中有时很困难。此外，该方法还为胶体静电纺丝提供了一些好处。该方法应该有助于在不久的将来扩大静电纺纳米纤维网的应用范围。
