21:I[432972,["/_next/static/chunks/bb923814e1f4d2e9.js","/_next/static/chunks/dd3ee9f5b7716ca6.js","/_next/static/chunks/4204a0ae82542ca8.js","/_next/static/chunks/1270dead247da766.js","/_next/static/chunks/6e1aa89a642f40be.js","/_next/static/chunks/2d7aa753e81324a8.js","/_next/static/chunks/8ffd0b71567920d8.js","/_next/static/chunks/67ea6dfd21f16c5f.js","/_next/static/chunks/24eb4379f68013fd.js","/_next/static/chunks/b8cd775ffdf935bd.js","/_next/static/chunks/983103cd9eb7b428.js","/_next/static/chunks/263f2cdcb9aa2341.js","/_next/static/chunks/294b9525248c8e5f.js"],"default"] 22:T480,Flame retardancy of epoxy resin (EP) plays a vital role in its applications. When inorganic nanomaterials form inorganic/organic nanocomposites, they exhibit special flame-retardant effects. In this study, EP nanocomposites were prepared by the incorporation of SiO₂ nanoparticles and phenethyl-bridged 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) derivative (DiDOPO), and the synergistic effects of SiO₂ nanoparticles and DiDOPO on the flame-retardant performance of EP were discussed. Results indicated that the introduction of only 15 wt % SiO₂ and 5 wt % DiDOPO in EP leads to the increase in the limiting oxygen index from 21.8 to 30.2%, and the nanocomposites achieve the UL-94 V-0 rating. Thermogravimetric analysis revealed that char yield increases with the increase in the SiO₂ content of the nanocomposites and that an increased amount of thermally stable carbonaceous char is formed. SiO₂ nanoparticles can improve the thermal stability and mechanical performance of EP; hence, the nanoparticles can serve as an efficient adjuvant for the DiDOPO/EP flame-retardant system.23:T45e,Summary Several new phosphorus‐containing potential flame retardants (FRs) were prepared and evaluated for heat release reduction potential, by incorporation of the molecules into polyurethane samples, generated from methylene diphenyl diisocyanate and 1,3‐propane diol. The potential FRs were all prepared from commercial diisocyanates, with the phosphorus‐containing substructure introduced as a semicarbazone. All of the target structures were diols, to facilitate their incorporation into a polyurethane main chain. The polyurethane samples were prepared via copolymerization, and analysis clearly demonstrated that the potential FRs were chemically incorporated, prior to heat release testing. The heat‐release reduction potential of these substances was evaluated using the microcombustion calorimeter. Results demonstrated that both heat release reduction potential and char formation were structure dependent. Some of the compounds containing an aromatic core had more effect on char formation (higher char yields) and peak heat‐release rate (lowered heat release) than just phosphorus content alone.24:T41c,The designability of the morphology and composition of inorganic particles plays a vital role in controlling the flame retardancy of polymers, an arena in which inorganic fillers have become a hot spot in the research field of halogen-free flame retardants. Here, aluminum phosphate (AlPO4)-coated silica (SiO2) (SiO2@AlPO4) particles were prepared via a facile one-pot heterogeneous precipitation strategy. The effect of the AlPO4 content on the morphology of SiO2@AlPO4 was systematically studied to regulate the dispersion of AlPO4 nanoparticles. Moreover, the effect of SiO2@AlPO4 on the flame retardancy of epoxy (EP) resin was further investigated. Results show that SiO2@AlPO4 simultaneously strengthens the mechanical properties and improves the flame retardancy of EP and that this phenomenon may be attributed to the synergistic effect of the AlPO4 nanoparticles and SiO2 microparticles. This work details a facile yet effective strategy to engineer the morphology and composition of inorganic particles to control the properties of polymers.25:T6ea,

#	Concept	H-Index	Publications	Citations
1	Engineering	3	3	57
2	Chemical Engineering	3	3	57
3	Materials Science	3	3	57
4	Chemistry	2	2	43
5	Materials Engineering	1	1	20

	Year	Citations

About

Top Concepts