Novel fabrication of magnetic thermoplastic nanofibers via melt extrusion of immiscible blends
Novel fabrication of magnetic thermoplastic nanofibers via melt extrusion of immiscible blends
复制标题
通过不混溶共混物的熔融挤出制备磁性热塑性纳米纤维的新方法
DOI：
10.1002/pat.3051
复制
发表时间：
2013
影响因子：
3.4
通讯作者：
Xu, Weilin
中科院分区：
文献类型：
--
作者：
Wang, Dong;Wang, Kai;Xu, Weilin
提出了一种通过控制不相容聚合物共混物在熔融挤出过程中的相分离来制备磁性热塑性纳米纤维的新技术。以醋酸丁酸纤维素为基体，在聚乙烯醇-乙烯共聚物（PVA-co-PE）中预载不同量的Fe 3 O 4纳米粒子，通过熔融挤出法制备了磁性PVA-co-PE/Fe 3 O 4复合纳米纤维。用扫描电子显微镜对磁性复合纳米纤维的形貌进行了表征。采用透射电镜和广角X射线衍射分析证实了Fe 3 O 4纳米粒子在陶瓷基体中的均匀分散和晶体结构。采用热重分析来量化复合纳米纤维中Fe 3 O 4纳米颗粒的确切负载量。磁性测试表明，复合纳米纤维在室温下表现出超顺磁性。随着Fe 3 O 4纳米粒子含量的增加，磁性复合材料的饱和磁化强度显著提高。所制备的磁性复合纳米纤维在传感器和生物分子分离领域具有潜在的应用前景。版权所有© 2012约翰威利父子有限公司.
A novel technique of fabricating magnetic thermoplastic nanofibers by the control of the phase separation of immiscible polymer blends during melt extrusion was presented. The magnetic poly(vinyl alcohol-co-ethylene) (PVA-co-PE)/Fe3O4 composite nanofibers were prepared via the melt extrusion of cellulose acetate butyrate matrix and PVA-co-PE preloaded with different amounts of Fe3O4 nanoparticles. The morphologies of magnetic composite nanofibers were characterized by scanning electron microscopy. The uniform dispersion of Fe3O4 nanoparticles in nanofiber matrixes and crystal structures were confirmed using transmission electron microscopy and wide angle X-ray diffraction. Thermogravimetric analysis was employed to quantify the exact loading amount of Fe3O4 nanoparticles in the composite nanofibers. The magnetic measurements showed that composite nanofibers displayed superparamagnetic behavior at room temperature. With increasing content of Fe3O4 nanoparticles, the saturation magnetization of the magnetic composite nanofiber significantly improved. The prepared magnetic composite nanofibers might have found potential applications in the sensors and bio-molecular separation fields. Copyright © 2012 John Wiley & Sons, Ltd.
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影响因子：
3
作者：
Biao Wang;Ying Sun;Huaping Wang
通讯作者：
Biao Wang;Ying Sun;Huaping Wang
影响因子：
2.7
作者：
Yun Kyung Sung;B. Ahn;T. Kang
通讯作者：
Yun Kyung Sung;B. Ahn;T. Kang
DOI：
10.1021/la802155a
发表时间：
2008-11
期刊：
Langmuir : the ACS journal of surfaces and colloids
影响因子：
--
作者：
M. Shin;S. I. Kim;Seon Jeong Kim;Sang Yoon Park;Y. H. Hyun;Youngpak Lee;K. Lee;S. Han;D. Jang
通讯作者：
M. Shin;S. I. Kim;Seon Jeong Kim;Sang Yoon Park;Y. H. Hyun;Youngpak Lee;K. Lee;S. Han;D. Jang
影响因子：
8.6
作者：
Xiao-hu Yan;Guojun Liu;M. Haeussler;B. Tang
通讯作者：
Xiao-hu Yan;Guojun Liu;M. Haeussler;B. Tang
影响因子：
3.2
作者：
Dong Wang;Gang Sun;B. Chiou;J. Hinestroza
通讯作者：
Dong Wang;Gang Sun;B. Chiou;J. Hinestroza