An efficient and durable DOPO/H3PO4-based flame retardant
Abstract. In this study, a novel high-efficiency and durable flame retardant DOPO–ammonium phosphate (DOPO–AP) was synthesized and applied for cotton fabric by a facile process. Nuclear magnetic resonance (NMR 1 H, 13 C, 31 P) spectroscopy confirmed the molecular structure of DOPO–AP. Flame retardancy of the treated cotton was studied by
High-efficiency flame retardant behavior of bi-DOPO compound
The flame retardant efficiency of DOPO derivatives can be influenced by two ways: 1) the phosphorus content of DOPO derivatives; 2) the other functional groups in DOPO derivatives. The high phosphorus content DOPO derivatives in epoxy resin directly influences the quenching effect in gas phase and the charring effect in condensed phase.
Bi-DOPO Structure Flame Retardants with or without Reactive
A novel reactive phosphorus-containing flame retardant 1,4-phenylene-bis((6-oxido-6H-dibenz[c,e][1,2]-oxaphosphorinyl) methylene) diacrylate (TDCAA-DOPO), with two symmetrical 9,10-dihydro-9-oxa-10-phosphaphena-nthrene-10-oxide structure (bi-DOPO), was synthesized and combined with unsaturated polyester resin (UPR) via cross-linking to prepare flame-retardant UPR (FR-UPR). To make clear both
Recyclable flame-retardant epoxy composites based on
High-efficiency flame retardant behavior of bi-dopo compound with hydroxyl group on epoxy resin Polym. Degrad. Stabil. (2025) View more references Cited by (25) Chemical structure construction of DOPO-containing compounds for flame retardancy of epoxy resin: A review 2025, Progress in Organic Coatings Show abstract
A new‐type terephthalonitrile derivative flame retardant
A high‐efficiency DOPO‐based reactive flame retardant (DPE) with bi‐hydroxyl was successfully synthesized via reacting DOPO with imine obtained from the condensation of ethanolamine and 1,4
- Why is Abd a better flame retardant than Dopo?
- Therefore, the better flame retardant performance of ABD in contrast to DOPO is resulted by two reasons: the quenching effect from phosphaphenanthrene groups in gas phase and the charring effect from the joint action of phosphaphenanthrene group and hydroxyl group in condensed phase simultaneously.
- How do Dopo derivatives affect flame retardant efficiency?
- The flame retardant efficiency of DOPO derivatives can be influenced by two ways: 1) the phosphorus content of DOPO derivatives; 2) the other functional groups in DOPO derivatives. The high phosphorus content DOPO derivatives in epoxy resin directly influences the quenching effect in gas phase and the charring effect in condensed phase.
- Why is Abd better charring flame retardant in condensed phase than Dopo?
- The results should be caused by that the hydroxyl group in ABD assisted the phosphaphenanthrene group to generate more final residue. Thus, ABD exhibited better charring flame retardant effect in condensed phase than DOPO. The more final residue implied not only excellent barrier and protective effect but also reduced the fuels to gas phase.
- Can a reactive flame retardant be used as a co-curing agent?
- In this study, a new reactive flame retardant (DOPO-M) including bi-DOPO and biphenyl structures was successfully synthesized and applied as a co-curing agent. The introduction of DOPO-M accelerated the ring-opening reaction of epoxy resin.
- Is Dopo-m a flame retardant?
- Furthermore, the peak heat release rate (PHRR) and total heat release (THR) of E51-DM-P0.5% decreased by 30.4% and 27.3%, respectively. All of these findings indicate that DOPO-M is a multifunctional and highly effective flame retardant that can be applied to manufacture epoxy resins with superior comprehensive properties. 1. Introduction
- What causes better flame retardant performance from Abd?
- The better flame retardant performance from ABD should be caused by the quenching effect from phosphaphenanthrene group in gas phase and the charring effect from the joint action of phosphaphenanthrene group and hydroxyl group in condensed phase simultaneously.
