Preparation and Properties of Graphene/Polyamide 6 Composites by Melt Compounding

Abstract

In this paper, graphene was obtained by Oxidation-reduction method. The obtained graphene was characterized by XRD and FTIR. On this basis, graphene/polyamide 6(PA6) composites were prepared by melt compounding. The well-dispersed graphene nanosheets in PA6 matrix was investigated by SEM. The properties were characterized by XRD, DSC and TGA. The results showed that the α-phase of polyamide 6 induced into γ-phase by adding graphene. The crystallization temperature and the crystallinity of composites have been increased in some degree. Besides, the composite has a higher thermal stability.

Effect of Graphene Nanosheets on the Morphology, Crystallinity, and Thermal and Electrical Properties of Super Tough Polyamide 6 Using SEBS Compounds

“…These results demonstrated that the thermal stability of the sample by adding graphene has increased, compared to the neat and other samples. This is due to the presence of graphene particles with large surface area that act as barrier and a thermal insulation [1]. The TGA results are similar to previous researches [1,6,19] However, we observed higher degradation temperature and thermal stability in samples with graphite and carbon black compared to M6 sample due to the intensifying effect of these fillers, but the difference is negligible.…”

“…This reduction continued with increasing graphene content up to 3% (N3). This process has been observed in the works of other researchers on pure polyamide [1,6]. Graphene sheets with high aspect ratio (surface area to thickness) easily penetrate through polyamide chains and cause interruption in crystallization process.…”

“…Graphene with unique properties of its nanostructure provides a large surface area as well as remarkable mechanical, electrical, and thermal properties and an effective optical property together with ultrahigh electron mobility [1,2]. These incomparable properties make graphene appropriate for many applications, such as conducting electrically and thermally reinforced polymer composite, sensors, electronic circuits, flexible and transparent electrodes in screens, and solar cells [3].…”

“…Zhang et al prepared [1] PA6/GN composite by melt compounding and showed the good dispersion of graphene sheets in the polyamide matrix by using SEM. But no studies on the effect of graphene on super tough polyamide 6 with SEBS have been done so far.…”

Properties of styrene-ethylene-butylene styrene block copolymer/exfoliated graphite nanoplatelets nanocomposites

“…[1][2][3][4] The polymers based nanocomposites incorporated with graphite and graphitic nano fillers have shown substantial improvement in mechanical, thermal, electrical properties. [5][6][7][8][9][10][11][12][13][14] While the graphene used for barrier membrane applications exhibited excellent impermeability to oxygen and effective optical property together with ultrahigh electron mobility. [15][16][17] The nanocomposites based on exfoliated graphite nanoplatelets (xGnPs) showed considerable improvement in mechanical, thermal, electrical and thermal conductivity.…”