期刊
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
卷 54, 期 1, 页码 68-80出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/03602559.2014.935412
关键词
Arc resistance; Hardness; Impact strength; Nanocomposites; Nanotubes; Polybenzoxazines; Thermal analysis
Multiwalled carbon nanotubes (MWCNT)-reinforced polybenzoxazine-epoxy nanocomposites were prepared via the solvent method and were investigated for their thermal, thermo-mechanical, mechanical, electrical and morphological properties. Epoxy resin (DGEBA) was modified with 5, 10 and 15 wt.% of benzoxazines using 4,4'-diaminodiphenylmethane as a curing agent at appropriate conditions. Epoxy and benzoxazines-modified epoxy systems were further reinforced with 0.25, 0.50 and 0.75 wt.% of surface-modified MWCNT. MWCNT-reinforced polybenzoxazine-epoxy nanocomposites exhibited better thermal, mechanical and dielectric properties. Dispersion of MWCNT in benzoxazine-epoxy resins and nanostructure of the composites was confirmed by transmission electron microscopy analysis.
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