Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/68300
Title: Highly effective p-p synergy of a novel DOPO-based flame retardant for epoxy resin
Authors: Zhang, Y
Yu, B 
Wang, BB
Liew, KM
Song, L
Wang, CM
Hu, Y
Issue Date: 2017
Publisher: American Chemical Society
Source: Industrial and engineering chemistry research, 2017, v. 56, no. 5, p. 1245-1255 How to cite?
Journal: Industrial and engineering chemistry research 
Abstract: A novel flame retardant (FR) DOPO-PEPA, which was synthesized via Atherton Todd reaction between 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and 1-oxo-4-hydroxymethy1-2,6,7-trioxa-l-phosphabicyclo [2.2.2] octane (PEPA), was used as an additive-type FR in epoxy resin (EP). The results of the limiting oxygen index (LOI), vertical burning test, and cone calorimeter test indicated that the flame retardance of FR-EP composites is dependent on the chemical structure of phosphorus based FRs. EP/DOPO-PEPA shows pretty good mechanical properties and a relatively high degree of cross-linking. Furthermore, the synergy as DOPO-PEPA was more efficient than that of DOPO or PEPA alone to flame retardant EP. When the FR additives were 9.1%, the EP/DOPO-PEPA acquired a LOI value of 35%, UL94 V-0 rating, and the lowest peak of heat release rate (PHRR) of 595 kW/m(2). Furthermore, its continuous and firm char residue layer 108 also reinforced this kind of action.
URI: http://hdl.handle.net/10397/68300
ISSN: 0888-5885
EISSN: 1520-5045
DOI: 10.1021/acs.iecr.6b04292
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