Thermal insulation, flame retardancy, smoke suppression, and reinforcement of rigid polyurethane foam enabled by incorporating a P/Cu-hybrid silica aerogel

Bifunctional modification of graphene by phosphorus/nitrogen‐containing silane compounds for smoke suppression and flame retardancy of epoxy resins

“…In the C1s spectrum, COC and CO bonds correspond to peaks at 285.5 and 288.2 eV, respectively, and CC or CC bonds in polycyclic aromatic hydrocarbons correspond to the peak at 284.8 eV, indicating that the carbon was mainly in an oxidized state at medium and low temperatures. Additionally, Figure 7c shows that 1% D‐GR/EP contained both POC (132.8 eV) and POP (133.6 eV), indicating the generation of polyphosphate during combustion 17,48,49 . SiC and SiOSi corresponded to peaks at 102.7 and 103.2 eV in the Si2p spectrum, respectively.…”

“…Additionally, Figure 7c shows that 1% D-GR/EP contained both P O C (132.8 eV) and P O P (133.6 eV), indicating the generation of polyphosphate during combustion. 17,48,49 Si C and Si O Si corresponded to peaks at 102.7 and 103.2 eV in the Si2p spectrum, respectively. According to the element distributions of the char residues (Figure S2), P, N, and Si were present in the D-GR/EP composites.…”

Biodegradable Wastepaper-Based Foam with Ultrahigh Energy-Absorbing, Excellent Thermal Insulation, and Outstanding Cushioning Properties

“…This can be explained by the decrease in the porosity resulting in a reduction in the pore volume of air within, thus increasing the thermal conductivity, and the increased presence of PVA and gelatin in P/WPF and G/WPF increasing the heat transfer via the pathways leading to an increase in the overall thermal conductivity . In general, P/WPF and G/WPF possess excellent thermal insulation properties, and their thermal conductivity is similar to that of porous cellulose aerogel and lower than that of some commercial thermal insulators, such as a foam glass insulation board and a PVC tube. , …”

Flame retardancy and smoke suppression effect of an organic–inorganic hybrid containing phosphaphenanthrene‐modified magnesium hydroxide/zinc borate on epoxy resin

“…Gaseous decomposition products mainly include H 2 O or phenol (O H, 3650 cm À1 ), hydrocarbons (2840-3150 cm À1 ), CO 2 (2260-2410 cm À1 ), CO (2010-2230 cm À1 ), carbonyl compounds (1780 cm À1 ), aromatic compounds (1400-1650 and 830 cm À1 ), C N compounds (1260 cm À1 ), and adipose ether (1170 cm À1 ). 77,78 Meanwhile, peaks of P OH, P O P, and PO H at observed at 828, 1014 and 3652 cm À1 are difficult to directly distinguish because they overlap with the peaks of pyrolytic gas products of the EP. Nevertheless, this also indirectly demonstrates the gas phase activity of phosphorous groups, which contribute to the free radical quenching effect.…”