Synthesis of a novel phosphorus-containing epoxy curing agent and the thermal, mechanical and flame-retardant properties of the cured products

Improved thermal properties of epoxy resin modified with polymethyl methacrylate-microencapsulated phosphorus-nitrogen-containing flame retardant

“…The rigid char structure might originate from phosphorus-rich pyrolysis fragments of core materials within microcapsules, which would promote the formation of charring layers in condensed phase when the re is in contact with the materials. 33 Given the visual observation analysis above, we concluded that the P(2.75H) microcapsules can effectively promote the ame retardancy of EP composites.…”

Flame-retardant effect of a phenethyl-bridged DOPO derivative and layered double hydroxides for epoxy resin

“…were related to the P-O-P and P-O-C bonding, respectively. 8,41 The results suggested the formation of phosphate compounds.…”

“…Conventionally, halogen compounds are used for improving the ammability of EP. The incorporation of certain ame-retardant additives, including phosphoro [8][9][10] and silicon-containing compounds, 11,12 functionalised layered double hydroxide (LDH) llers, [13][14][15] and graphene-based llers, 7,16,17 can effectively improve the ame retardancy of EP.…”

Preparation, flame retardancy, and thermal and mechanical properties of polyurethane containing phosphonated bisphenol‐A units

“…The similar procedure about the reaction was described in our previous work. 24 Phosphonated bisphenol-A glycol (3001-OH) was synthesized by the reaction of Nofia ® OL3001 (500 g, 0.25 mol) and PO (140 g, 2.4 mol) with KOH (1.28 g, 0.2 wt%) as catalyst and THF (500 mL) as solvent in a 2-L stainless autoclave, and the yield was about 95% (Scheme 1). FTIR (KBr, cm −1 , Figure S1): 3038 (aromatic CH stretch), 2970…”