Surface Functionalization of PEO Nanofibers Using a TiO_(2) Suspension as Sheath Fluid in a Modified Coaxial Electrospinning Process  

作　　者：ZHENG Gaofeng PENG Hao JIANG Jiaxin KANG Guoyi LIU Juan ZHENG Jianyi LIU Yifang 

机构地区：[1]Department of Instrumental and Electrical Engineering,Xiamen University,Xiamen,361102,P.R.China [2]Fujian Innovation Center of Additive Manufacturing,Fuzhou,350118,P.R.China

出　　处：《Chemical Research in Chinese Universities》2021年第3期571-577,共7页高等学校化学研究（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(No.61772441);the Science and Technology Planning Project of Fujian Province,China(No.2020H6003);the Xiamen Municipal Science and Technology Project,China(No.3502Z20193015);the Fund of the Aviation Key Laboratory of Science and Technology on Inertia,China(No.20180868001);the Fund of Fujian Innovation Center of Additive Manufacturing,China(No.ZCZZ202-31).

摘　　要：Convenient and integration fabrication process is a key issue for the application of functional nanofibers.A surface functionalization method was developed based on coaxial electrospinning to produce ultraviolet(UV)protection nanofibers.The titanium dioxide(TiO_(2))nanoparticles suspension was delivered through the shell channel of the coaxial spinneret,by which the aggregation of TiO_(2) nanoparticles was overcome and the distribution uniformity on the surface of polyethylene oxide(PEO)nanofiber was obtained.With the content of TiO_(2) increasing from 0 to 3%(mass fraction),the average diameter of nanofibers increased from(380±30)nm to(480±100)nm.The surface functionalization can be realized during the electrospinning process to gain PEO/TiO_(2) composite nanofibers directly.The uniform distribution of TiO_(2) nanoparticles on the surface of nanofibers enhanced the UV absorption and resistance performance.The maximum UV protection factor(UPF)value of composite nanofibers reaches 2751.This work presented a novel surface-functionalized way for the preparation of composite nanofiber,which has great application potential in the field of micro/nano system integration fabrication.

关 键 词：Coaxial electrospinning Surface functionalization TiO_(2)nanoparticle Composite nanofiber UV protection 

分 类 号：TB383[一般工业技术—材料科学与工程]