Double-stretching as an effective and generalizable strategy towards thinner nanofibers in solution blow spinning

被引：1

作者：

Zhang, Baopu ^{[1
,2
]}

Li, Ziwei ^{[1
]}

Cheng, Zekun ^{[1
]}

Li, Lei ^{[1
]}

Yang, Chong ^{[1
]}

Wang, Haiyang ^{[1
]}

Wu, Hui ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab Ceram & Fine Proc, Beijing 100084, Peoples R China

[2] MIT, Dept Chem Engn, Cambridge, MA 02139 USA

来源：

NANO RESEARCH | 2023年 / 16卷 / 04期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

nanofibers; solution blow spinning; double-stretching; computational fluid dynamics; POLYMER; PERFORMANCE; FABRICATION; MODEL;

D O I：

10.1007/s12274-022-5198-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Solution blow spinning (SBS) applies high-speed airflow to prepare fibers by generating a strong stretching force. It has the advantages of scalable production, tailorable morphologies, and wide applicability. Yet, the SBS strategy can hardly prepare fibers down to the sub-100 nanometers, which limits its performance in demanding applications. Herein, we overcome the limitation of SBS by introducing a second airflow. This novel strategy is termed double-stretching SBS (DS-SBS) because an extra stretching force is exerted on the fiber when it converges with the second airflow. Polyamide6 nanofibers with an average diameter of 80 nm are successfully prepared with the DS-SBS strategy, while the SBS strategy could only prepare submicron fibers with an average diameter of 120 nm. Further, the generality of the DS-SBS strategy to reduce fiber diameter is verified on numerous solute-solvent pairs.

引用

页码：5709 / 5714

页数：6

共 33 条

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