Synthesis of a novel flame retardant based on DOPO
An intumescent flame retardant (DOPO-DAM) containing phosphorus and nitrogen was synthesized viaa two-step process and then, it was incorporated into waterborne polyurethane to serve as a reactive flame retardant for preparing flame-retarded WPU (FR-WPU).
The production of flame retardant paper with DOPO - ResearchGate
Flame retardant property to paper increases the use of paper and the value of paper products. The flame retardant property was achieved by the addition of an organophosphorus agent to...
THE PRODUCTION OF FLAME RETARDANT PAPER WITH DOPO
In this study, In order to prepare a flame retardant paper coating, DOPO derivative was synthesized with 3-aminophenyl sulfone, and benzaldehyde reaction and the chemical structure of DOPO is illuminated by ATR-FTIR then paper was coating with a flame retardant coating formulation ingredient with DOPO. The paper’s properties were investigated.
Synthesis of a novel flame retardant based on DOPO
An intumescent flame retardant (DOPO-DAM) containing phosphorus and nitrogen was synthesized via a two-step process and then, it was incorporated into waterborne polyurethane to serve as a
DOPO-Decorated Two-Dimensional MXene Nanosheets for Flame
This study presents a novel and facile strategy for fabricating fire-resistant, ultraviolet (UV)-shielding, and tensile-enhanced polylactide (PLA) composites using two-dimensional (2D) MXene (Ti3C2) flakes chemically modified with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO). The thermal and burning performances of PLA composites were demonstrated by the limiting oxygen index, UL
- Are Dopo derivatives flame retardants?
- Despite a growing interest in DOPO derivatives as flame retardants there exist no comprehensive review, which summarizes in detail their synthesis and application in epoxy systems since 2011 (last decade) [, , , , , ].
- What is a non-reactive Dopo based flame retardant?
- Non-reactive DOPO-based flame retardants have been widely used in aviation where a relatively lower loading is required to achieve improved fire behavior and allow a good compromise between flame retardancy and mechanical performances in epoxy systems , , , .
- Which flame retardant additive is better HPCP or Hap-Dopo?
- DOPO-based flame retardant additive (HAP-DOPO) showed higher flame retardant efficiency compared to HPCP. HPCP system could only achieve a V2 classification, however, when DOPO was used as a reactive co-additive in the HPCP system a V0 classification could be achieved.
- Can a phenethyl-bridged Dopo derivative improve flame retardancy in DGEBA epoxy resin?
- Yan et al. combined the use of a phenethyl-bridged DOPO derivative (DiDOPO, Fig. 7) with multi-walled carbon nanotubes (MWNT) in DGEBA epoxy resin cured with 2-ethyl-4-methylimidazole (EMI-2,4) to improve its flame retardancy.
- Does flame retarded EP containing Dopo-THPO reduce PHRR and Thr?
- Cone calorimeter results showed that the flame retarded EP containing DOPO-THPO resulted in lower values of PHRR and THR than pure EP resin, because of the formation of a protective graphitized char and of phosphorous inhibitors hampering the radical chain reactions (Table 15) [65, 87, 109, 6, 83, 106]. Scheme 19.
- Can non-reactive Dopo-based flame retardants be used in epoxy resins?
- This review covers the use of non-reactive DOPO-based derivative flame retardants currently available or under design and development for application in epoxy resins.
