Novel DOPO-based flame retardants in high-performance carbon
Flame retardants containing phosphorus seem to offer a promising halogen-free way to render epoxy resins and their composites flame retardant in the future [5], [6]. Thus 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) has become one of the most important flame retardants in this field, now used in several modifications as a reactive
High performance flame-retardant organic–inorganic hybrid
Polyhedral oligomeric silsesquioxane (POSS) and a highly effective 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO)-based flame retardant co-curing agent (D-bp) were chemically introduced into the 4,4′-diaminodiphenyl methane (DDM)/diglycidyl ether of bisphenol A (DGEBA) epoxy system to create organic–inor
One-pot scalable fabrication of an oligomeric phosphoramide
As one major class of ecofriendly FR additives, intumescent flame retardants (IFRs) have demonstrated good flame retardancy performances in PLA due to multiple advantages, including high effectiveness, low smoke production, low toxicity and low corrosiveness [16,17].
High-performing phosphorus- and bromine-based Flame Retardants
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High Performance FR Catalog | Catalog | Lakeland Industries
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- Why is Dopo a flame retardant?
- Thus 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) has become one of the most important flame retardants in this field, now used in several modifications as a reactive or additive compound , , , , , , , . DOPO shows excellent flame-retarding properties in epoxy-based materials.
- Which flame retardant reduces PHRR and the?
- Both flame retardants reduced the PHRR and THE in the order RTM6-CF > RTM6-CF + DOPP = RTM6-CF + DOPI, indicating a flame-retarding action in the composites as well. The residue of RTM6 + DOPP and RTM6 + DOPI was increased in comparison to that of RTM6. This led to the shoulder in the HRR curve of RTM6 + DOPP and RTM6 + DOPI.
- Are phosphorus flame retardants halogen-free?
- Flame retardants containing phosphorus seem to offer a promising halogen-free way to render epoxy resins and their composites flame retardant in the future , .
- Why do flame retardants have a higher flame inhibition than non-flame-retarded material?
- The lower the THE/ML in comparison to the non-flame-retarded material, the stronger the flame inhibition of the flame retardant. Furthermore flame inhibition goes along with incomplete combustion, which increases the smoke and the CO release in the gas phase.
- Are oligomeric star-shaped flame retardants suitable for rtm6 and rtm6-cf?
- Oligomeric star-shaped flame retardants containing DOPO (DOPP and DOPI) were proposed for RTM6 and RTM6-CF. The glass transition temperatures of all materials and the mechanical properties, such as apparent ILSS and the critical strain energy release rate ( GIc, GIIc) were determined for the composites. Pyrolysis and fire behaviour were studied.
- Do flame retardants decompose?
- Since the ester group in the ground body of the two flame retardants is highly susceptible to hydrolysis ( Fig. 5 b), this is the first group of the flame retardants to decompose. A carbonylic acid functionality with the DOPO moiety is formed at the end of the chain, and a hydroxy group with the pentaerythritol or isocyanurate rest.
