A Well-Defined Cyclotriphosphazene-Based Epoxy Monomer and Its Application as A Novel Epoxy Resin: Synthesis, Curing Behaviors, and Flame Retardancy

You, Guoxiang; Cai, Zhe; Peng, Hao; Tan, Xiao-Song; He, Hongwu

doi:10.1080/10426507.2013.829838

Cited by 17 publications

(10 citation statements)

References 22 publications

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“…Although the compound has been reported [30,31], the synthesis method presented in this paper is different comparing with the report and the flame retardant mechanism of the compound need to be further investigated.…”

Section: Characterization Of Ctp-epmentioning

confidence: 92%

“…So it is desirable to obtain novel cyclotriphosphazene-based epoxy materials with excellent comprehensive performance. However, the phosphazene used as primary component for synthesizing the flame retardant epoxy resins was seldom reported [24,27,29,30] and the flame retardant mechanism needs to be further investigated.…”

Section: Introductionmentioning

confidence: 98%

“…The phosphazene-based polymers present more effective flame retardancy than other flame-retardants, which make them a new research focus [40e43]. Previous reports [30,40,42] show that epoxy thermoset containing cyclotriphosphazene units exhibit a potential application in the modern electric industry for their superior flame retardancy and thermal stability. So it is desirable to obtain novel cyclotriphosphazene-based epoxy materials with excellent comprehensive performance.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis and characterization of a novel epoxy resin based on cyclotriphosphazene and its thermal degradation and flammability performance

2014

Polymer Degradation and Stability

104

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Section: Characterization Of Ctp-epmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and characterization of a novel epoxy resin based on cyclotriphosphazene and its thermal degradation and flammability performance

2014

Polymer Degradation and Stability

104

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“…1) Department of Chemistry, College of Science, Mustansiriyah University, Baghdad, 10052, IRAQ. 2) Polymer research unit, College of Science, Mustansiriyah University, Baghdad, 10052, IRAQ. 3) School of Pharmacy, the University of Sydney, Sydney NSW 2006, Australia.…”

Section: Spiro-cyklotrifosfazen Z Trzema Funkcyjnymi Grupami Końcowymi: Synteza I Charakterystyka Struktury Nowych Policyklotrifosfazenówmentioning

confidence: 99%

Spiro-cyclotriphosphazene with three functional end groups: synthesis and structure characterization of new polycyclotriphosphazenes with Schiff-base groups

Al-Shukri

Mahmood

Hanbali

2021

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A new tris-spiro-(3,4-dioxybenzaldehyde)cyclotriphosphazene [PNCHO] was synthesized from the condensation of hexachlorocyclotriphosphazene with 3,4-dihydroxybenzaldehyde in the presence of strong base. Further reaction of the trialdehydic cyclotriphosphazene based molecules [PNCHO] with three different dianilines (benzidine, 4,4'-methylenedianiline and 4,4′-Sulfonyldianiline) resulted in creation of a new poly(tris-spiro-3,4-dioxbenzene)cyclotriphosphazenes with Schiff-base groups [PNSB1-3]. The structures of [PNCHO] and the polycyclotriphosphazenes-schiff base derivatives were characterized by means of FTIR, 1H, 13C NMR and C.H.N elemental analysis. Differential scanning calorimetery (DSC) revealed a relatively high glass transition temperature (135−175°C) of obtained polymers. Thermal gravimetric analysis (TGA) exhibited their good thermal stability (up to 375oC). The char yield was about 36-42% at 700°C. All polymers were self-extinguishable as the LOI (Limiting Oxygen Index) values were above 26% and this meets with the V-0 and V-1, classification (UL-94). No fumes, soot, or toxic gases emission were observed during burning. The polymers obtained can be used as environmentally friendly, flame-retardant materials.

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“…23,24 As we all know, hexachlorocyclotriphosphazene (HCCP) and its derivatives, as novel phosphorus and nitrogen flame retardants, have excellent thermal stability and flame retardancy compared to others. [25][26][27][28][29] Yang et al 30 synthesized an HCCP derivative containing N-(4-hydroxyphenyl) maleimide and added it to EP. The test results showed that the flame retardant had an obvious expansion effect and improved the flame-retardant property of the EP composite.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of multielement phosphazene derivative and the study on flame-retardant properties of epoxy resin

Wang

Yang

Guo

et al. 2020

High Performance Polymers

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Herein, we have successfully synthesized phosphorus/nitrogen/silicon tri-elements compound phosphazene derivative hexa-[4-( N-(3-(triethoxysilyl)propyl)acetamide)phenoxy]cyclotriphosphazene (HNTPC) from hexachlorotriphosphazenitrile, methyl 4-hydroxybenzoate, and 3-triethoxysilylpropylamine, and it was used as an additive flame retardant in epoxy resin (EP). Then, the thermal stability and flame retardancy of the composite (HNTPC/EP) were tested. Thermogravimetric analysis showed that the presence of HNTPC made EP matrix decompose at a relatively low temperature, thus promoted the formation of a stable coke layer and protected the matrix from fire. Therefore, the amount of carbon residue was markedly increased at 800°C, indicating an outstanding condensed phase flame-retardant effect. Furthermore, various combustion test data manifested that the addition of HNTPC could significantly improve the flame-retardant performance of EP. In addition, the sample could pass the vertical burning tests (UL-94) V-1 grade when the addition amount was 10% and the limiting oxygen index value was 32.6%, the peak heat release rate and total heat release rate decreased by 40.0% and 21.5%, respectively. Besides, the results of scanning electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy also showed that HNTPC can promote the formation of carbon layer and improved the flame-retardant property of EP. Finally, the condensed phase and gas phase synergistic flame-retardant mechanism of HNTPC was proposed.

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A Well-Defined Cyclotriphosphazene-Based Epoxy Monomer and Its Application as A Novel Epoxy Resin: Synthesis, Curing Behaviors, and Flame Retardancy

Cited by 17 publications

References 22 publications

Synthesis and characterization of a novel epoxy resin based on cyclotriphosphazene and its thermal degradation and flammability performance

Synthesis and characterization of a novel epoxy resin based on cyclotriphosphazene and its thermal degradation and flammability performance

Spiro-cyclotriphosphazene with three functional end groups: synthesis and structure characterization of new polycyclotriphosphazenes with Schiff-base groups

Synthesis of multielement phosphazene derivative and the study on flame-retardant properties of epoxy resin

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