Biomass tannic acid intermediated surface functionalization of ammonium polyphosphate for enhancing fire safety and smoke suppression of thermoplastic polyurethane

Multifunctional Biobased Polyurethane/Tannic Acid Composites with Controllable Damping, Flame-Retardant, and Ultraviolet-Shielding Performances

“…Conversely, the incorporation of bio-TA into bio-PU suppressed the HRR curves of bio-PU/TA composites to a relatively low level, implying that the introduction of bio-TA allowed the formation of a stable char layer in bio-PU/TA composites to prevent gas escape. 42,43 The difference in flame retardancy between the PU0 elastomer and bio-PU/TA composites was further confirmed by combustion mass loss curves. As shown in Figure S11, bio-PU/TA composites exhibited a slower mass-loss rate, which beneficially reduced the release of explosive components and heat.…”

“…The HRR curve corresponding to the PU0 elastomer exhibited a steep trend with a considerable gap between the two peaks, suggesting that the residual carbon strength of the PU0 elastomer was insufficient. Conversely, the incorporation of bio-TA into bio-PU suppressed the HRR curves of bio-PU/TA composites to a relatively low level, implying that the introduction of bio-TA allowed the formation of a stable char layer in bio-PU/TA composites to prevent gas escape. , …”

Novel fabrication of flame-retardant melamine sponge for all-weather cleanup of viscous oil spills by Joule heat and photothermal effects

“…62 The OQP-O characteristic peaks are found in FRMS, rGO/FRMS and rGO/CNTs/FRMS char residue spectra at 496 cm À1 , 508 cm À1 and 500 cm À1 , respectively. 63 These results suggest that the attachment of ATMP-NA, rGO and CNTs onto MS is conducive to generating char layers, thus markedly enhancing the flame retardancy. The flame-retardant rGO/CNTs/FRMS shows promise in dealing with crude oil recovery work, which improves its safety factor in the process of storage and transportation.…”

Facile preparation of a hydrophobic intumescent flame retardant toward simultaneously enhanced flame retardancy and smoke suppression of thermoplastic polyurethane

“…36 For the HIFR, the new peaks at 2950 cm À1 , 1067 cm À1 and 440 cm À1 are associated with C-H, Si-O-Si and Cu-O, respectively. [39][40][41] Furthermore, the peak at 1562 cm À1 is ascribed to NH 3 + , indicating the electrostatic interaction between TA and APP. 42 On the basis of FTIR results, it is proved that the HIFR has been fabricated successfully.…”