Tailoring the Diameters of Electro-Mechanically Spun Fibers by Controlling Their Deborah Numbers

Polymers

卷:12

SergioO. Martinez-Chapa¹  Jaime Bonilla-Rios¹  Braulio Cardenas-Benitez¹  DomingoR. Flores-Hernandez¹ 

[1] Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey 64849, NL, Mexico;

关键词: near-field electrospinning;    polymer nanofibers;    polymer relaxation time;    Deborah number;    microelectromechanical systems;    suspended fibers;   

DOI  :  10.3390/polym12061358

来源: DOAJ

【 摘 要 】

Polymer solutions with different concentrations of SU-8 2002/poly(ethylene) glycol/tetrabutyl ammonium tetrafluoroborate (SU-8/PEO/TBATFB) were electrospun in a low-voltage near-field electrospinning platform (LVNFES) at different velocities. Their diameters were related to the concentration contents as well as to their Deborah (De) numbers, which describes the elasticity of the polymer solution under determined operating conditions. We found a direct correlation between the concentration of PEO/TBATFB, the De and the diameter of the fibers. Fibers with diameters as thin as 465 nm can be achieved for De ≈ 1.

【 授权许可】

Unknown