Eco-friendly phosphonic acid piperazine salt toward high-efficiency smoke suppression and flame retardancy for epoxy resins

Preparation of Exfoliated Organo‐Montmorillonite and Its Effect on Flame Retardancy and Mechanical Properties of Polypropylene

“…Contrarily, the HRR curve of PP/IFR APP and PP/IFR APP/OMt have a wide platform near the maximum HRR, indicating that the quality of the carbon layer formed by PP/IFR during the combustion process is so out‐standing to inhibit the rapid combustion of the underlying polymer matrix. Moreover, according to the data in Table 2 and Figure 7A, it can be concluded that PP/IFR APP/OMt has a better suppression effect on heat release than PP/IFR APP [39] …”

“…Moreover, according to the data in Table 2 and Figure 7A, it can be concluded that PP/IFR APP/OMt has a better suppression effect on heat release than PP/IFR APP . [39] It is well known that most victims of fire accidents are asphyxiated by inhaling smoke and carbon monoxide. As can be seen in Figure 7E, F, the release rate of CO and CO 2 in PP/ IFR APP and PP/IFR APP/OMt composites are significantly weaker than that in pure PP, which was contributed to an expanded layer of carbon had formed at the initial stage of combustion.…”

Single-phase excitation-wavelength-independent nitrogen doped graphene quantum dots for the fabrication of white light-emitting diodes (WLEDs)

“…In Fig. 3(b), the C 1s spectrum showed three different binding energy (284.68, 286.08 and 288.28 eV), which was attributed to sp 2 C in graphene, sp 3 C in C-N and C-O, and CQO from carbonyls, 24,25 respectively. The N 1s spectrum of the N:GQDs exhibited three peaks at 399.68, 400.58 and 402.18 eV and it indicated the presence of pyridine, pyrrole and graphitic N, respectively.…”

Synergistic Effects of Iron Alginate on Improving the Fire Safety and Mechanical Properties of Epoxy Resin/Ammonium Polyphosphate Composites

“…Over the past few decades, researchers have investigated various flame retardants (FRs) to resolve the inflammability of EP, such as intumescent FRs (IFRs), [ 14,15 ] phosphorus‐containing FRs, [ 16–18 ] including DOPO‐based FRs [ 19 ] and phosphazene‐based FRs, [ 20 ] and nano FRs [ 21 ] et al. Among them, ammonium polyphosphate (APP) is especially important, receiving extensive attention due to the higher phosphorus‐nitrogen ratio and its excellent flame retardancy for EP.…”

“…[8][9][10] Hence, researchers have paid considerable attention on environment-friendly flame retardants for EP. [11][12][13] Over the past few decades, researchers have investigated various flame retardants (FRs) to resolve the inflammability of EP, such as intumescent FRs (IFRs), [14,15] phosphorus-containing FRs, [16][17][18] including DOPO-based FRs [19] and phosphazenebased FRs, [20] and nano FRs [21] et al Among them, ammonium polyphosphate (APP) is especially important, receiving extensive attention due to the higher phosphorusnitrogen ratio and its excellent flame retardancy for EP. [22,23] Although APP endows higher flame-retardant efficiency for EP, it is still short of the capacity to decrease the smoke/toxic-gases during the burning process.…”