Temperature Effect on the Mechanical Properties of Electrospun PU Nanofibers

被引：22
|
作者：
Zhou, Ji [1 ,2 ]
Cai, Qing [2 ]
Liu, Xing [2 ]
Ding, Yanhuai [1 ,2 ]
Xu, Fu [2 ]
机构：
[1] Hunan Univ Sci & Engn, Coll Civil & Environm Engn, Yongzhou 425006, Hunan, Peoples R China
[2] Xiangtan Univ, Coll Civil Engn & Mech, Xiangtan 411105, Hunan, Peoples R China
来源：
NANOSCALE RESEARCH LETTERS | 2018年 / 13卷
基金：
中国国家自然科学基金;
关键词：
PU nanofiber; Mechanical property; AFM; Young's modulus; Three-point bending test; CARBON;
D O I：
10.1186/s11671-018-2801-1
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Polyurethane (PU) nanofibers were prepared from electrospun method. Atomic force microscopy (AFM) was employed to characterize the mechanical properties of electrospun PU nanofibers. The impact of temperature on the mechanical behavior of PU nanofibers was studied using three-point bending test based on AFM. A Young's modulus of similar to 25GPa was obtained for PU nanofibers with diameter at similar to 150nm at room temperature. With decrease in nanofiber's diameter, the increasing Young's modulus can be due to the surface tension effect. The Young's modulus of the PU nanofiber decreased linearly while the fibrous morphology was maintained with the increase of temperature.
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页数：5
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