A phosphorus-containing hyperbranched phthalocyanine flame
A typical phosphorus-containing flame retardant, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO), has been proved to be the effective flame retardant for epoxy resins 8.
Highly effective flame retarded epoxy resin cured by DOPO
In this paper, a highly effective DOPO-containing Schiff-base flame retardant (D-bp) was successfully synthesized by a simple one-pot method and used as co-curing agent to improve the flame retardancy of DDM/DGEBA system.
Highly effective flame retarded epoxy resin cured by DOPO
A highly effective 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO)-based flame retardant (D-bp) was successfully synthesized via the addition reaction between DOPO and Schiff-base
Flame-retardant behavior and mechanism of a DOPO-based
Xu W, Wirasaputra A, Liu S, et al. Highly effective flame retarded epoxy resin cured by DOPO-based co-curing agent. Polym Degrad Stab 2015; 122: 44–51.
Recyclable Flame-retardant Epoxy Composites Based on
retardancy and recyclability. Friendly DOPO is used as flame retardant of recyclable epoxy resin. The flame retardancy of epoxy improves by exploiting the free radical trapping mechanism in gas phase and carbon formation mechanism in condensed phase. Even if a small amount of flame retardant is adding, epoxy can gain effective flame-retardant
- What is Dopo based flame retardant?
- A highly effective 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO)-based flame retardant (D-bp) was successfully synthesized via the addition reaction between DOPO and Schiff-base obtained in advance by the condensation of 4,4’-diaminodiphenyl methane (DDM) and 4-hydroxybenzaldehyde.
- Which halogen-free flame retardant should be used for epoxy resins?
- Besides, Tg of the flame retarded epoxy thermoset remains relatively constant. Hence, D-bp is expected to be used as the highly effective halogen-free flame retardant for the application of epoxy resins as electronic materials.
- Is cured epoxy resin flame retardant?
- Therefore, despite the low content of phosphorus element, the cured epoxy resin still performs remarkable flame retardancy owing to the well-maintained crosslink density, as shown in EP-0.25 and EP-0.5.
- Can Schiff-base flame retardant be used as a co-curing agent?
- In this paper, a highly effective DOPO-containing Schiff-base flame retardant (D-bp) was successfully synthesized by a simple one-pot method and used as co-curing agent to improve the flame retardancy of DDM/DGEBA system.
- What factors affect the flame retardancy of cured epoxy resin?
- In correlation with the discussion in the previous section, the flame retardancy of cured epoxy resin depends on many factors, which include the phosphorus content, synergistic effect of flame retardant elements and crosslink density.
- Does FPD improve flame retardancy and toughness of epoxy thermoset?
- The incorporated FPD improved the flame retardancy and toughness of epoxy thermoset, simultaneously. When 5 wt% FPD was added into EP, the FPD/EP achieved 35.7% limited oxygen index (LOI) value and passed UL94 V-0 rating, meanwhile.
