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Development of a DOPO-containing melamine epoxy hardeners and its thermal and flame-retardant properties of cured products
Journal of applied polymer science, 2013-03, Vol.127 (6), p.4352-4358
Xiong, Yuanqin
Jiang, Zhuojuan
Xie, Yanyan
Zhang, Xuyong
Xu, Weijian
2013
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Xiong, Yuanqin
Jiang, Zhuojuan
Xie, Yanyan
Zhang, Xuyong
Xu, Weijian
Titel
Development of a DOPO-containing melamine epoxy hardeners and its thermal and flame-retardant properties of cured products
Ist Teil von
Journal of applied polymer science, 2013-03, Vol.127 (6), p.4352-4358
Ort / Verlag
Hoboken: Wiley Subscription Services, Inc., A Wiley Company
Erscheinungsjahr
2013
Quelle
Wiley Online Library
Beschreibungen/Notizen
In this study, a novel Schiff base of melamine used as flame‐retardant curing agent for epoxy resins, was synthesized via condensation reaction of 4‐hydroxybenzaldehyde with melamine, followed by the addition of 9,10‐dihydro‐9‐oxa‐10‐phosphaphen‐anthrene 10‐oxide (DOPO) to the resulting imine linkage. The structure of DOPO‐containing melamine Schiff base (P‐MSB) was characterized by Fourier transformed infrared spectroscopy, 1H‐nuclear magnetic resonance (1H‐NMR) and 31P‐NMR. The compound (P‐MSB) was used as a reactive flame retardant in o‐cresol formaldehyde novolac epoxy resin (CNE) to prepare flame‐retardant epoxy resins for electronic application. The thermal and flame‐retardant properties of the epoxy resins cured by various equivalent ratios phenol formaldehyde novolac (PN) and P‐MSB were investigated by the nonisothermal differential scanning calorimetry, the thermogravimetric analysis, and limiting oxygen index test. The obtained results showed that the cured epoxy resins possessed high Tg (165°C) and good thermal stability (T5%, 321°C). Moreover, the P‐MSB/CNE systems exhibited higher limiting oxygen index (35) and more char was maintained in P‐MSB/CNE systems than that in PN/CNE system and the effective synergism of phosphorus–nitrogen indicated their excellent flame retardancy. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Sprache
Englisch
Identifikatoren
ISSN: 0021-8995
eISSN: 1097-4628
DOI: 10.1002/app.37635
Titel-ID: cdi_proquest_miscellaneous_1439780825
Format
–
Schlagworte
Applied sciences
,
Chemical properties
,
Combustion
,
Constraining
,
Electronics
,
Epoxy resins
,
Exact sciences and technology
,
flame retardancy
,
Materials science
,
Melamine
,
Novolacs
,
Polymer industry, paints, wood
,
Polymers
,
Properties and testing
,
Reproduction
,
Schiff bases
,
synergism of phosphorus-nitrogen
,
Technology of polymers
,
thermal properties
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