The surfaces of glass fiber were coated with ethylene-maleic anhydride copolymer or/and multiwalled carbon nanotube through electrostatic absorption method

thus GF-EMA

GF-MWCNT and GF-EMA-MWCNT hybrid reinforcements were prepared.Nylon 6 and nylon 6/carbon nanotube based composites reinforced with as-prepared hybrid reinforcements were fabricated by melt mixing.The results have shown that the acid anhydride groups of the EMA copolymer can react with the amino groups of the PA6 resin to form cross-linked structures.Meanwhile

the EMA on the glass fiber surfaces can significantly improve the interfacial adhesion between GF and PA6 matrix

thus enhance the mechanical properties of the GF-EMA reinforced composites.Compared to PA/GF composites

the measured tensile strength

flexural strength and modulus of PA/GF-EMA composites increased by 11.4%

21.5% and 28.9%

respectively.The incorporation of GF-MWCNT reinforcements effectively enhanced the electrical properties of PA6/CNT composites due to the compact and well-dispersed MWCNT conductive network formed on the fiber surfaces.The surface electrical resistivity of GF-MWCNT reinforced PA6/CNT composites was reduced by about 2 orders of magnitude compared to that of the PA6/GF/CNT composites.The GF-EMA-MWCNT hybrid structures can combine the modification effect of GF-EMA and GF-MWCNT structures

thus the GF-EMA-MWCNT reinforced composites exhibited improvements of mechanical and electrical properties at the same time.