Control of Macromolecule Chains Structure in a Nanofiber

Abstract

Mechanical property is one of the most important properties of nanofiber membranes. Electrospinning is widely used in the preparation of nanofibers due to its advantages such as good stability and easy operation. Compared with some nature silk, the mechanical properties of nanofibers prepared by electrospinning are poor. Based on the principle of vortex spinning and DNA structure, this paper designed an air vortex electrospinning device that can control the structure of macromolecular chains in nanofibers. When a weak air vortex is generated in the electrospinning process, the macromolecule chains will entangle with each other and form a DNA-like structure so as to improve the mechanical property. In addition, when a strong air vortex is generated during the electrospinning process, the nanofibers will adhere to each other, thereby enhancing the mechanical property and enlarging the pore size.

Electrospun Silk Fibroin/Polylactic-co-glycolic Acid/Black Phosphorus Nanosheets Nanofibrous Membrane with Photothermal Therapy Potential for Cancer

“…Appropriate mechanical properties of electrospun membrane are necessary for its application [ 44 , 45 ]. Therefore, the effect of the BP@SF on the mechanical properties of the electrospun membrane were investigated, using a tensile testing machine ( Figure 4 c).…”

Macromolecular-scale electrospinning controlling inner topologic structure through a blowing air

“…The air vortex in the electrospinning process, fig. 1, can improve the mechanical properties of nanofiber membrane [12]. In our previous experiment, we found that through this method, the mechanical properties of nanofiber membranes are significantly improved.…”

“…It is a known fact that the internal structure of nanofibers can greatly affect nanofiber's properties, ordered distribution, and well orientation of macromolecules in the nanofiber will enhance its mechanical, thermal, and electronic properties [12].…”

Effect of temperature on the bubble-electrospinning process and its hints for 3-D printing technology

“…As a simple and straightforward fabrication process, electrospinning is widely adopted in producing nanofibers [2][3][4][5][6], whereas its low output has dramatically hindered its industrial applications. To get rid of the shortcoming of the electrospinning, the bubble electrospinning was appeared as the most promising technology for mass-production of various functional nanofibers [7][8][9][10][11][12][13].…”