Facile strategy to synthesize MXene@LDH nanohybrids for boosting the flame retardancy and smoke suppression properties of epoxy

Multifunctional Epoxy‐Based Electronic Packaging Material MDCF@LDH/EP for Electromagnetic Wave Absorption, Thermal Management, and Flame Retardancy

“…On the one hand, MDCF@LDH‐2 with a multi‐level 3D network structure can be used as an effective physical barrier to impede the transport of oxygen and combustible gases, thereby, effectively suppressing the pyrolysis of EP. On the other hand, CO 3 2− intercalated LDH releases H 2 O and CO 2 at high temperatures, which acts as cooling and dilution, [ 49,50 ] further strengthening the flame retardancy of EP.…”

Column-to-Beam Architecture Inspires Interface-Engineered MXene Nanosheet/Boron Nitride Nanosheet/Polydopamine Hybrids for Fire Retardants

“…By means of Table 1, the FRI values of EP composites are in order: EP/BN-PDA-MXene (1.154) > EP/MXene (1.032) > EP/BN-PDA (1.007) > EP (1.000), indicating that the synergistic effect between MXene and BN-PDA is beneficial to endow the EP composite with higher flame retardancy. In addition, the impact of nanohybrids on the smoke performance of EP composites is evaluated using the smoke factor (SF) 40 obtained by multiplication of total smoke release and PHRR. As we can see, EP/BN-PDA-MXene exhibits the lowest SF value (3055.8 MW/m 2 ), a 39.9% decrease compared to pristine EP (5088.3 MW/m 2 ).…”

“…According to Figure2c, the peaks of F1s, Ti2p, O1s, N1s, C1s, and B1s at about 189.93, 284.28, 397.75, 455.46, 531.67, and 685.09 eV are clearly recorded in the XPS spectra of BN-PDA-MXene, demonstrating that MXene is effectively combined with BN-PDA. For the high-resolution XPS curve of Ti2p (Figure2d), there are two main peaks corresponding to Ti2p 1/2 (462.77 eV) and Ti2p 3/2 (456.86 eV), respectively 40. Moreover, the B1s curve (Figure2e) is divided into two peaks at 190.29 and 190.82 eV, which are assigned to B− N and B−O, respectively, indicating that the BN surface has been successfully grafted with active groups.…”

Nanohybrid of Co3O4 Nanoparticles and Polyphosphazene-Decorated Ultra-Thin Boron Nitride Nanosheets for Simultaneous Enhancement in Fire Safety and Smoke Suppression of Thermoplastic Polyurethane

“…Compared with h-BN, the hybrid flame retardant h-BN@SiO 2 @PA overcame the chemical inertia of h-BN, achieving a better flame retardant effect and toxic gas suppression while greatly enhancing the mechanical properties of the TPU nanocomposite. Generally, the flame retardant efficiency of single flame retardants is not high, while the compounding of multiple types of flame retardants or constructing hybrid flame retardants can achieve high flame retardant efficiency and reduce the loading of the flame retardant as well as maintaining other properties of TPU [ 28 , 29 , 30 , 31 ]. However, the lip–lip interaction [ 32 ] between the B atom and N atom in adjacent layers of h-BN has a poor interfacial interaction with polymer matrices, which seriously affects the flame retardant efficiency of BN and deteriorates the mechanical properties of polymer nanocomposites.…”