Mechanical, Thermal, and Electrical Properties of Epoxy Matrix Composites Reinforced With Poly amide-Grafted-MWCNT/poly(azo-pyridine-benzophenone-imide)/ Polyaniline Nanofibers

摘要

Friedel-Crafts acylation and in situ polymerization were adopted to graft polyamide on multi-walled carbon nanotube (MWCNT) surface to form MWCNT-PA using y-Phenyl-e-caprolactone. Via electrospinning, MWCNT-PA/PAPB1 and MWCNT-PA/ PAPBI/PANI nanofibers were prepared using MWCNT-PA, poly(azo-pyridine-benzophenone-imide) (PAPBI) and polyaniline (PANI) and DGEBA as matrix. Compared with 3wt% MWCNT-PA/PAPBI nanofibers (20.2 GPa), tensile modulus for film reinforced with 3wt% MWCNT-PA/PAPBI/PANI nanofibers (27.6 GPa) was considerably increased. Thermal stability of MWCNT-PA/PAPBI/PANI nanofibers reinforced epoxy was higher with T_(10) 633 654°C and T_g 283-291°C relative to DGEBAMWCNT-PA/PAPBI system. The filler loading also increased the electrical conductivity of DGEBA/MWCNT-PA/ PAPBI/PANI from 3.44 to 6.01 Scm~(-1).