Controllable Design and Preparation of Fibrous Arrays Based on Superamphiphobic Surfaces

Based on the extreme repellence of the superamphiphobic surface to water, organic solvents, and polymer melts, this paper reports a novel approach to design and prepare polymer fiber arrays by manipulating polymer solution microfluids and conducting microfluidic spinning on superamphiphobic surfaces. By investigating the influence of spinning parameters on fibrous structures and diameters, it was showed that microfluidic spinning has good controllability to structures of fibers and fibrous arrays. In addition, scanning electron microscopy and laser confocal microscopy imaging showed that the fibers had a good cylindrical morphology and had a very small contact area with the super-dense surface, which could be further transferred to other substrates. The design and preparation method of fibrous arrays presented in this paper is simple and controllable, which opens new doors for researches in the fields of flexible devices, biomaterials materials and medical materials. It is expected to be practically applied to biological scaffold materials and wearable electronic devices.