▎ 摘　　要

Two different types of graphene-based composites have been synthesized with simple assays. The multifunctional composites were obtained through loading Fe3O4@phenol formaldehyde resin (PFR) nanoparticles (NPs) synthesized with Fe3O4 NPs, hexamethylene-tetramine, and phenol onto the surface of graphene oxide sheets in the presence of coupling agent. The Fe3O4@PFR loaded graphene oxide composites bring several merits. It prevents PFR NPs aggregation due to the existed graphene oxide but also endows the composites photothermal conversion property. Furthermore, the graphene-wrapped PFR composites were prepared by mixing oxide graphene and PFR NPs at 110 degrees C by means of the good reduction of the hydroxyl group on the surface of PFR NPs to graphene. Under the assistance of chitosan, a building block consists of graphene-wrapped PFR composites could be obtained. Thus, an ideal method may be developed to synthesize graphene-wrapped PFR composites for constructing building blocks. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45007.