Prescribed morphology and interface correlation of MWNTs-EP/PSF hybrid nanofibers reinforced and toughened epoxy matrix

被引：18

作者：

Li, Gang ^{[1
,2
]}

Jia, Xiaolong ^{[1
]}

Huang, Zhibin ^{[1
]}

Zhu, Bo ^{[1
]}

Li, Peng ^{[1
]}

Yang, Xiaoping ^{[1
]}

Dai, Wuguo ^{[3
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China

[3] China BlueStar Co, Nantong XingChen Synthet Mat Co, Nantong 226017, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2012年 / 134卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

Interfaces; Nanostructures; Electron microscopy; Fracture and toughness; FUNCTIONALIZED CARBON NANOTUBES; MECHANICAL-PROPERTIES; POLYMER NANOCOMPOSITES; COMPOSITES; DISPERSION; FABRICATION; MEMBRANES; ALIGNMENT; BEHAVIOR;

D O I：

10.1016/j.matchemphys.2012.03.098

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

MWNTs-EP were successfully prepared by functionalization of MWNTs with epoxy-based groups, and MWNTs-EP/polysulfone (PSF) hybrid nanofibers were fabricated to obtain ex-situ dispersion and alignment of MWNTs-EP by electrospinning. The prescribed morphology and interface correlation of hybrid nanofibers reinforced and toughened epoxy matrix (RTEP) were investigated. The alignment degree of hybrid nanofibers was enhanced with increasing MWNTs-EP loadings, and MWNTs-EP were found to be well dispersed and aligned along the nanofiber axis. The dispersion and alignment states of MWNTs-EP during inhomogeneous phase separation of RTEP were proposed and verified. MWNTs-EP dispersed and aligned along the orginal nanofiber axis were enveloped, bridged or pinned by PSF spheres arranged in the nanofiber direction. The interface chemical correlation between MWNTs-EP and resin matrix was generated due to the further reaction of epoxide rings on the surface of MWNTs-EP, which resulted in simultaneous improvement of mechanical and thermal properties of RTEP. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：958 / 965

页数：8

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