A review of sustainable and environment-friendly flame
Sustainable flame retardants are required for fire treatments of plastics. Synthesis and incorporation methods of FR's in plastics affect the performance. Reduction of ignition time by flame retardant is due to rapid volatilisation. Leaching is higher in finer plastic particles than larger ones. Keywords Sustainability Flame retardants
Eco-friendly functional two-component flame-retardant
Green functional two-component flame-retardant waterborne polyurethane (2K-FWPU) coatings possess outstanding green traits, such as providing eco-friendly protection, having low toxicity, and generating no pollution. Based on various synthesis designs, such as the use of different flame-retardants and compos
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 reactive flame retardant for preparing flame-retarded WPU (FR-WPU). The chemical structures of DOPO-DAM and FR-WPU were confirm
The preparation and properties of flame-retardant
Two types of DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide)-based halogen-free flame retardants, ODOPB (2-(6-oxid-6H-dibenzo[c,e][1,2]oxaphosphorin-6-yl)-1,4-benzenediol) and DOPO-PhOH (1,10-bis(4-hydroxyphenyl)-methylene-bispheny-1-oxophosphine oxide), were synthesized and incorporated into polyisocyanurate–polyurethane foams to investigate their effects on the thermal stability
High efficient flame retardant finishing of PET fabric using
The LOI values of flame retardant finished PET fabrics reached over 32% for both DOPO and DFR and no changes after subjected to 5 home laundering cycles. DFR could be used together with...
- Is Dopo a flame retardant?
- As a commercially available compound, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) exhibits strong potential to develop effective flame retardants for epoxy resin due to its reactive group of P H and dominant function in gas phase.
- What are reactive Dopo based flame retardants for epoxy resins?
- This review focuses on recent advances in reactive DOPO–based flame retardants for epoxy resins, including reactive monomers, curing agents and hybrid structures. There are also highlighted fire retardant mechanisms of the DOPO derivatives and thermal and mechanical features of the epoxy systems.
- Is tgic-AA-Dopo a flame retardant?
- Tao et al. proposed that the flame retardant mechanism of TGIC-AA-DOPO was very similar to the one exerted by TAD in thermosetting composites and suggested the occurrence of both condensed and gas phase flame retardant effects .
- What is the best flame retardant for epoxy resin?
- Amongst these promising substitutes, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) is considered as one commercially available flame retardant to prepare efficient flame-retardant systems for many polymers, including epoxy resin , , , .
- 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.
- Does DGEBA/DDS have a flame retardant effect?
- The epoxy composites with DOPO-POSS showed different flame retardant properties depending on the type of hardener. During the UL-94 test it was observed that DGEBA/DDS, containing DOPO-POSS, exhibited a strong blowing-out effect, through vigorous emission of pyrolytic gases.
