Synthesis and Characterization of Reactive-Phosphorus/Nitrogen Flame Retardant for Epoxy Resin

Sim, Min‐Ji; Cha, Sang‐Ho

doi:10.7317/pk.2019.43.2.204

Cited by 5 publications

(5 citation statements)

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“…As presented in Figure 4D, the external surface of DPP/BICP‐15/13 char was continuous and compact, and the internal structure was polyporous. Such a continuous and intumescent char can effectively inhibit the release of combustible gases and the exchange of heat and oxygen during combustion 40,41 …”

Section: Resultsmentioning

confidence: 99%

“…Such a continuous and intumescent char can effectively inhibit the release of combustible gases and the exchange of heat and oxygen during combustion. 40,41 The FTIR, EDS, and Raman spectroscopy were used to analyze the chemical composition and graphitization degree of residual chars. Figure 5 shows the FTIR spectrum of DPP/BICP-15/13 residue.…”

Section: Morphology and Chemical Analyses Of Residual Charsmentioning

confidence: 99%

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A fire‐safe, single‐component epoxy resin based on a phosphorus/imidazole‐containing latent curing agent and diphenylphosphine

Hu,

Wang,

Chen

et al. 2023

Polymers for Advanced Techs

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This work reported a flame‐retardant, single‐component epoxy resin (EP) via introducing diphenylphosphine (DPP) and benzimidazolyl‐substituted cyclotriphosphazene (BICP) into EP. The differential scanning calorimetry (DSC) test showed that the onset curing temperature of DPP/BICP‐15/10 was 50°C lower than that of BICP‐12 due to the catalytic decomposition effect of DPP toward BICP under heating. Besides, the shelf life of DPP/BICP‐15/10 at room temperature reached ~14 days, demonstrating good storage stability. EP/DPP/BICP maintained satisfactory thermal properties and showed excellent flame retardancy with a UL‐94V‐0 classification. Compared with the unmodified EP sample, the peak heat release rate (PHRR) and total heat release (THR) of DPP/BICP‐15/13 were decreased by ~68.1% and ~55.1%, respectively. Hence, this flame‐retardant, single‐component epoxy resin with satisfactory comprehensive properties exhibited great potential for versatile industrial applications.

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Section: Resultsmentioning

confidence: 99%

Section: Morphology and Chemical Analyses Of Residual Charsmentioning

confidence: 99%

A fire‐safe, single‐component epoxy resin based on a phosphorus/imidazole‐containing latent curing agent and diphenylphosphine

Hu,

Wang,

Chen

et al. 2023

Polymers for Advanced Techs

View full text Add to dashboard Cite

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“…The observation substantiates that the incorporation of IFR considerably improves RL membranes in terms of the flame safety. 17.9% and the combustion is drastic. The membranes are unable to put out the fire via self-extinguishing but also by generating droplets.…”

Section: Micro-scale Combustion Calorimetry (Mcc)mentioning

confidence: 99%

“…With the help of high temperatures, the foaming agent of flame retardants is decomposed to generate flame retardant or flame-resistant airs that can dilute inflammable air from the surrounding mixed air, while reducing the oxygen content of the mixed air. Subsequently, an air protective layer is formed, surrounding the flammable materials and with the ability to consume considerable heat quantity [17]. In the meanwhile, the flame retardants are thermally melted, generating a highly viscous liquid that covers the surface of flammable materials while blocking the external heat source from the transmitting the heat and oxygen into the material's interior and at the same time preventing inflammable air from being emitted from the flammable materials [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…Subsequently, an air protective layer is formed, surrounding the flammable materials and with the ability to consume considerable heat quantity [17]. In the meanwhile, the flame retardants are thermally melted, generating a highly viscous liquid that covers the surface of flammable materials while blocking the external heat source from the transmitting the heat and oxygen into the material's interior and at the same time preventing inflammable air from being emitted from the flammable materials [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of a Compound Phosphorus-Nitrogen Intumescent Flame Retardant for Applications to Raw Lacquer

Shiu

Lou

et al. 2021

Polymers

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Raw lacquer (RL) is a natural polymer compound with highly promising applications; however, its inflammable attribute restricts the industrial applications. In this study, melamine is used to formulate tri (1-melamine-2-propanol) phosphate (FR-1), after which it is synthesized with ammonium phosphate (FR-2) and diatomite to form a compound phosphorus-nitrogen intumescent flame retardant (IFR). Next, IFR is used as the filling agent that then cross-links with RL, and as such RL/IFR membranes are formed after the curing. The limiting oxygen index (LOI) measurement, the vertical combustion test (UL-94), the microshape calorimetric analysis (CCT), and the thermal gravimetric analysis (TGA) are conducted to examine the combustion resistance and thermal stability of the membranes. Fourier transform infrared spectroscopy (FT-IR) and electron scanning microscope (SEM) are performed to separately characterize the structure and compatibility; the mechanical properties of the membranes are also evaluated. The vertical combustion test results confirm that with 30 wt% of IFR, RL/IFR membranes acquire 12.3% higher LOI and a vertically combustion of V-0 level. The TGA indicates that RL/IFR membranes demonstrate a greater adhesion level, a higher rigidity, and better luster than pure RL membranes.

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Flame-retardant single-component epoxy resin cured by benzimidazolyl-substituted cyclotriphosphazene: Storage stability, curing behaviors and flame retardancy

Wang

et al. 2022

Polymer Degradation and Stability

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Synthesis and Characterization of Reactive-Phosphorus/Nitrogen Flame Retardant for Epoxy Resin

Cited by 5 publications

References 0 publications

A fire‐safe, single‐component epoxy resin based on a phosphorus/imidazole‐containing latent curing agent and diphenylphosphine

A fire‐safe, single‐component epoxy resin based on a phosphorus/imidazole‐containing latent curing agent and diphenylphosphine

Synthesis of a Compound Phosphorus-Nitrogen Intumescent Flame Retardant for Applications to Raw Lacquer

Flame-retardant single-component epoxy resin cured by benzimidazolyl-substituted cyclotriphosphazene: Storage stability, curing behaviors and flame retardancy

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