Preparation and properties of polybutylene‐terephthalate/graphene oxide in situ flame‐retardant material

Abstract

In this manuscript, an in situ layered intumescent flame retardant (IFR) of graphene oxide (GO) was used to produce a polybutylene terephthalate (PBT) flame‐retardant material with different flame‐retardant concentration gradients. IFR was introduced into the GO layered structure via a chemical reaction to achieve an in situ flame‐retardant effect. The elements of the composite were characterized using energy dispersive spectroscopy. The results showed that although the subsequent PBT‐based flame‐retardant composites displayed low flame‐retardant content, it exhibited excellent flame retardancy and mechanical properties. Due to the introduction of GO, the flame retardancy of the composites was improved significantly. The lamellar structure of GO provided a barrier allowing it to absorb condensed nucleus compounds. Therefore, continuous and compact scaly carbon layers were formed in the matrix during the burning process.

Nanocarbon-Based Flame Retardant Polymer Nanocomposites

“…Surprisingly, PBT/20 wt% IFR/0.3 wt% I-G2 composites reached the V-0 rating of UL-94 tes. These results indicate that graphene oxide has obvious synergistic flame retardancy [18].…”

Synthesis of phosphorus and silicon co‐doped graphitic carbon nitride and its combination with ammonium polyphosphate to enhance the flame retardancy of epoxy resin

“…From this perspective, with the development of nanotechnology, two-dimensional (2D) nanomaterials, such as layered double hydroxides (LDH), 10 molybdenum disulfide (MoS 2 ), 11 black phosphorus nanosheets (BPNSs), 12 reduced graphene oxide (RGO) 13 and graphitic carbon nitride (g-C 3 N 4 ), 14 have attracted much attention in the field of flame-retardant science. Not only do they enhance the toughness of the polymer matrix, but heighten the flame retardant properties.…”

Flame retardant and mechanical properties of core‐shell‐like polybutylene terephthalate/intumescent flame retardant through controlling injection time

“…Finally, the mixture was stirred in a 50°C constant temperature water bath using a magnetic stirrer and rotated at 120rmp/min for 24 h. The mixture was then centrifuged, filtered, and washed several times with ethanol to remove any impurities, after which the remaining black residue was collected and dried in a vacuum at 80°C. IFR‐GO characterized in previous paper was a typical layered flame retardant 13 …”