Novel DOPO-based flame retardants in high-performance carbon
The flame retardants are based on 9,10-dihydro-9-oxy-10-phosphaphenanthrene-10-oxide (DOPO) units linked to the star-shaped aliphatic ground body tetra- [ (acryloyloxy)ethyl] pentarythrit (DOPP), or heterocyclic tris- [ (acryloyloxy)ethyl] isocyanurate (DOPI), respectively.
Novel DOPO-based flame retardants in high-performance carbon
Novel DOPO-based flame retardants in high-performance carbon fibre epoxy composites for aviation - ScienceDirect European Polymer Journal Volume 47, Issue 5, May 2011, Pages 1081-1089 Novel DOPO-based flame retardants in high-performance carbon fibre epoxy composites for aviation B. Perret a , B. Schartel a , K. St b , M. Ciesielski b ,
Novel DOPO-based Flame Retardants in High-performance Carbon
Novel DOPO-based Flame Retardants in High-performance Carbon Fibre Epoxy Composites for Aviation Authors: B. Perret B. Schartel Bundesanstalt für Materialforschung und -prüfung K. St Michael...
Fire performance of composites made from carbon/phenolic
Perret B, Schartel B, Sot K, et al. Novel DOPO-based flame retardants in high-performance carbon fibre epoxy composites for aviation. Eur Polym J 2011; 47: 1081–1089. Crossref ISI Google Scholar 9. Bahramian AR, Kokabi M. Polymer nanocomposites as ablative materials. Polymer green flame retardants, Amsterdam: Elsevier, 2014. Google Scholar 10.
Study on Flame Retardancy and Interface Performance of Carbon
A novel flame retardant, containing silicon and nitrogen (PSiN), was synthesized, and it was used together with 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) to prepare a flame
- What is a Dopo flame retardant?
- Among them, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) derivatives have been widely used as reactive or additive flame retardants owing to good thermal stability and effective gaseous-phase flame extinguishing effect , , , .
- 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.
- Which radicals are produced by the combustion of Dopo groups?
- Meanwhile, the PO· and PO 2 · radicals produced by the combustion of DOPO groups capture the flame propagating radicals (H· and HO·) to achieve the purpose of flame retardant. (22,33,41,56,59,72−78) 4. Conclusions
- Does flame retardant improve Loi of rtm6?
- The LOI of RTM6 with flame retardant was improved by around 12% for RTM + DOPP and by 9% for RTM6 + DOPI. The flame-retarded composites showed an amelioration of the LOI of +12% for RTM6-CF + DOPP and + 14% for RTM6-CF + DOPI in comparison to RTM6-CF.
- Are EP/andD composites flame retardant?
- The EP/ANDD composites exhibited improved flame retardancy, with a limiting oxygen index (LOI) of 33.6 % at a 5 wt% ANDD loading (P content of 0.372 %), achieving a V-0 rating in UL-94.
- 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.
