Preparation and Characterization of DOPO-Functionalized MWCNT
PMID: 32156085 PMCID: PMC7182840 DOI: 10.3390/polym12030613 Abstract compared to neat epoxy resin, which indicates its excellent flame retardant performance. These experimental results indicated that MWCNT-ODOPB was a compatible and efficient flame retardant for epoxy resins.
The non-halogen flame retardant epoxy resin based on a novel
The flame retardant epoxy resins include DOPO–DGEBA and ODOPB–DGEBA are two kinds of typical DOPO series resins which have been widely researched till now. For comparing the flame retardant behaviors of HAP–DOPO, DOPO and ODOPB on themosets, we prepared DOPO–DGEBA/DDS (sample F6) and ODOPB–DGEBA/DDS (sample F7) thermosets containing 1
DOPO/Silicon/CNT Nanohybrid Flame Retardants: Toward
The thermal stability and flame-retardant properties of EP/FR-CNTs composites are improved, which is attributed to the good dispersion of DOPO/silicon/CNT nanohybrid. The cone calorimeter results demonstrate that FR-CNTs can reduce peak heat release and the release of toxic gas effectively compared with EP/CNTs and EP/CNT/FR composites.
Preparation and Characterization of DOPO
As Zhang et al. demonstrated, DOPO-derivatives can effectively introduce flame-retarding properties to epoxy resins in add-ons as low as 2.5 wt.%, increasing LOI and promoting a...
A tetra-DOPO derivative as highly efficient flame retardant
In order to attain highly efficient flame retardant epoxy thermosets without deteriorating the thermo-mechanical performances, a 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide...
- 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.
- Is EAD a flame retardant?
- Multifunctional-efficient flame retardant EAD was designed for epoxy resin. 0.186 wt% P-loading endowed EP with UL-94 V-0 rating and good thermal stability. Thermosets exhibited improvement in tensile strength and impact resistance. DOPO-conjugated structure gave EP transparency and UV-shielding performance.
- 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.
- 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.
- Is Ti-Poss-bisdopo a flame retardant?
- As Ti-POSS-bisDOPO contains a non-polar POSS unit and a polar DOPO segment it can behave like an amphiphilic surfactant. Therefore, SEM analysis of epoxy samples containing Ti-POSS-bisDOPO (EP/Ti-POSS-bisDOPO) revealed that the flame retardant could achieve very good dispersion in the matrix with a particle size varying from 150 nm to 1.5 μm.
