Preparation and properties of poly(vinylidene fluoride) nanocomposites blended with graphene oxide coated silica hybrids

Abstract

Abstract. Graphene oxide coated silica hybirds (SiO 2 -GO) were fabricated through electrostatic assembly in this work, then blended with poly(vinylidene fluoride) (PVDF) by solution mixing to make PVDF nanocomposites. The interfacial interaction was investigated by scanning electron microscopy (SEM), polarized optical microscopy (POM) and Fourier transform infrared spectroscopy (FTIR). The results showed that the interfacial interaction was enhanced by adding of SiO 2 -GO and strong hydrogen bonds were observed. The as-made nanocomposites were investigated using standard tensile test and dynamic mechanical analysis (DMA) measurements, mechanical properties of PVDF with SiO 2 -GO hybrids showed limited improvement.

A study of crystallisation of poly (ethylene oxide) and polypropylene on graphene surface

“…Although numerous of studies on how the incorporation of graphene affects the crystallisation behaviour of semi-crystallized polymers have been carried out [12,[19][20][21][22], all the studies only focused on crystallisation behaviour of polymers in composites. The crystallisation behaviour of polymers on the surface of graphene has been rarely discussed.…”

Preparation and mechanical properties of Si3N4 nanocomposites reinforced by Si3N4@rGO particles

“…First, the Si 3 N 4 particles were amine-functionalized by APTES, which were positively charged due to the protonation of the amino group. 28 Therefore, when the negatively charged GO and the positively charged amino-functionalized Si 3 N 4 particles were mixed, it was easy to self-assemble by electrostatic interaction to obtain Si 3 N 4 @GO particles. 28 Therefore, when the negatively charged GO and the positively charged amino-functionalized Si 3 N 4 particles were mixed, it was easy to self-assemble by electrostatic interaction to obtain Si 3 N 4 @GO particles.…”

Thin Film Composite Membranes: Mechanical and Antifouling Properties

“…The presence of glycerol as the plasticizer has reduced the rigidity structure of the hybrid membrane that is observed through lowering the elastic modulus [13]. Besides that, synergistic effect of glycerol with the cross-linking network portrayed by organic-inorganic materials would substantiate the enhancement in the mechanical properties of the hybrid membrane, which was claimed by Liang et al [14] in their research on the production of chitosan/polyvinyl alcohol gel films by using cross-linking method.…”