Fabrication of CA/TPU Helical Nanofibers and its Mechanism Analysis

Nanoscale Research Letters

Huihui Wu¹  Shihang Zhao²  Lei Han² 

[1]Pan Tianshou Arts and Design Academy, Ningbo University

[2]The School of Materials Science and Chemical Engineering, Ningbo University

关键词: Fabrication;    Interfacial interaction;    Helical nanofibers;    Mechanism;   

DOI  :  10.1186/s11671-018-2516-3

来源: DOAJ

【 摘 要 】

Abstract To explore the mechanism of cellulose acetate (CA)/thermoplastic polyurethane (TPU) on the fabrication of helical nanofibers, a series of experiments were conducted to find the optimum spinning conditions. The experimental results show that the CA (14 wt%, DMAc/acetone, 1/2 volume ratio)/TPU2 (18 wt%, DMAc/acetone, 3/1 volume ratio) system can fabricate helical nanofibers effectively via co-electrospinning. We focus on the interfacial interaction between the polymer components induced by the polymer structure and intrinsic properties, including solution properties, hydrogen bonding, and miscibility behavior of the two solutions. Differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FTIR) are employed to investigate the interfacial interaction between the two phases of the polymer system. The analysis results provide the explanation of the experimental results that the CA/TPU system has the potential for producing helical nanofibers effectively. This study based on the interfacial interaction between polymer components provides an insight into the mechanism of CA/TPU helical fiber formation and introduces a richer choice of materials for the application of helical fibers.

【 授权许可】

Unknown