| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1523016 | Materials Chemistry and Physics | 2012 | 8 Pages |
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.
► The ex-situ dispersion and alignment of MWNTs-EP were obtained by electrospinning. ► MWNTs-EP/PSF hybrid nanofibers were used to reinforce and toughen epoxy matrix. ► The prescribed morphology of reinforced and toughened epoxy were proposed and verified. ► The interface chemical correlation between MWNTs-EP and epoxy matrix was generated. ► The simultaneous improvement of mechanical and thermal properties were achieved.
