Highly Effective P-P Synergy of a Novel DOPO-Based Flame Retardant for Epoxy Resin

Yan Zhang; Bin Yu; Bibo Wang; Kim Meow Liew; Lei Song; Chengming Wang; Yuan Hu

doi:10.1021/acs.iecr.6b04292

Highly Effective P-P Synergy of a Novel DOPO-Based Flame Retardant for Epoxy Resin

Yan Zhang
, Bin Yu
, Bibo Wang^*
, Kim Meow Liew
, Lei Song
, Chengming Wang
, Yuan Hu^*

^*Corresponding author for this work

Department of Architecture and Civil Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

213 Citations (Scopus)

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/m². Furthermore, its continuous and firm char residue layer 108 also reinforced this kind of action.

Original language	English
Pages (from-to)	1245-1255
Journal	Industrial & Engineering Chemistry Research
Volume	56
Issue number	5
Online published	10 Jan 2017
DOIs	https://doi.org/10.1021/acs.iecr.6b04292
Publication status	Published - 8 Feb 2017

Funding

The work was financially supported by the National Natural Science Foundation of China (No. 51303167 and 21374111), the Fundamental Research Funds for the Central Universities (No. WK2320000027 and No. WK2320000032), and the National High-tech R&D program (No. 2016YFB0302104).

Research Keywords

MICROENCAPSULATED AMMONIUM POLYPHOSPHATE
THERMAL-PROPERTIES
MECHANICAL-PROPERTIES
HALOGEN-FREE
ORGANOPHOSPHORUS OLIGOMER
BIS(DIPHENYL PHOSPHATE)
ELECTRONIC APPLICATIONS
BUTADIENE-STYRENE
CURING AGENT
PERFORMANCE

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title = "Highly Effective P-P Synergy of a Novel DOPO-Based Flame Retardant for Epoxy Resin",

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/m2. Furthermore, its continuous and firm char residue layer 108 also reinforced this kind of action.",

keywords = "MICROENCAPSULATED AMMONIUM POLYPHOSPHATE, THERMAL-PROPERTIES, MECHANICAL-PROPERTIES, HALOGEN-FREE, ORGANOPHOSPHORUS OLIGOMER, BIS(DIPHENYL PHOSPHATE), ELECTRONIC APPLICATIONS, BUTADIENE-STYRENE, CURING AGENT, PERFORMANCE",

author = "Yan Zhang and Bin Yu and Bibo Wang and Liew, \{Kim Meow\} and Lei Song and Chengming Wang and Yuan Hu",

year = "2017",

month = feb,

day = "8",

doi = "10.1021/acs.iecr.6b04292",

language = "English",

volume = "56",

pages = "1245--1255",

journal = "Industrial \& Engineering Chemistry Research",

issn = "0888-5885",

publisher = "American Chemical Society",

number = "5",

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TY - JOUR

T1 - Highly Effective P-P Synergy of a Novel DOPO-Based Flame Retardant for Epoxy Resin

AU - Zhang, Yan

AU - Yu, Bin

AU - Wang, Bibo

AU - Liew, Kim Meow

AU - Song, Lei

AU - Wang, Chengming

AU - Hu, Yuan

PY - 2017/2/8

Y1 - 2017/2/8

N2 - 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/m2. Furthermore, its continuous and firm char residue layer 108 also reinforced this kind of action.

AB - 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/m2. Furthermore, its continuous and firm char residue layer 108 also reinforced this kind of action.

KW - MICROENCAPSULATED AMMONIUM POLYPHOSPHATE

KW - THERMAL-PROPERTIES

KW - MECHANICAL-PROPERTIES

KW - HALOGEN-FREE

KW - ORGANOPHOSPHORUS OLIGOMER

KW - BIS(DIPHENYL PHOSPHATE)

KW - ELECTRONIC APPLICATIONS

KW - BUTADIENE-STYRENE

KW - CURING AGENT

KW - PERFORMANCE

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U2 - 10.1021/acs.iecr.6b04292

DO - 10.1021/acs.iecr.6b04292

M3 - RGC 21 - Publication in refereed journal

SN - 0888-5885

VL - 56

SP - 1245

EP - 1255

JO - Industrial & Engineering Chemistry Research

JF - Industrial & Engineering Chemistry Research

IS - 5

ER -

Highly Effective P-P Synergy of a Novel DOPO-Based Flame Retardant for Epoxy Resin

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