Benzimidazolyl-substituted cyclotriphosphazene derivative as latent flame-retardant curing agent for one-component epoxy resin system with excellent comprehensive performance

Cheng, Jianwen; Wang, Jun; Yang, Shuang; Zhang, Qianqian; Huo, Siqi; Hu, Yefa; Ding, Guoping

doi:10.1016/j.compositesb.2019.107440

Cited by 138 publications

(86 citation statements)

References 40 publications

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“…For every sample, it is to be noted that some broad bands are observed between 1000 and 1200 cm −1 . These characteristic peaks are assigned to the phosphate groups [28,32,35]. The results are consistent with the XPS conclusion that the nitrogenous polyaromatic structures are prevented from decomposing to quaternary N species.…”

Section: Resultssupporting

confidence: 88%

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Montmorillonite-Synergized Water-Based Intumescent Flame Retardant Coating for Plywood

Sun

Zhu

et al. 2020

Coatings

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In this study, montmorillonite (MMT) was used as an inorganic synergist to prepare the water-based intumescent flame retardant (IFR) ornamental coating for plywood. Results indicate that the 7 wt.% MMT modified IFR coating (No. 3) possess the best fire resistance (longer than 20 min) of the tested samples according to the fire performance, which significantly declines the specific extinction area by 44.12 m2·kg−1 compared to the coating without MMT by cone calorimeter. In addition, characterizations such as XPS, XRD, TG, SEM and FTIR were characterized to investigate the surface and bulk properties as well as the morphology of MMT synergized water-based IFR coating. It is revealed that the residual nitrogenous polyaromatic structure and 25.5% residual mass in the No. 3 coating are a result of the effect of MMT on the antioxidation properties of the char layer.

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Section: Resultssupporting

confidence: 88%

“…The characterized absorption peaks are observed in all samples. The stretching vibration of C=N (ν C=N ) between 1500 and 1600 cm −1 [31][32][33][34] is observed in No. 0 and No.…”

Section: Resultsmentioning

confidence: 99%

Montmorillonite-Synergized Water-Based Intumescent Flame Retardant Coating for Plywood

Sun

Zhu

et al. 2020

Coatings

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“…The pk‐HRR (the peak value of the HRR) value of a material is reflective of its fire resistance. A lower pk‐HRR value means better fire resistance 26 . On the other hand, the THR value of a material reflects its combustion intensity, and the higher the THR is, the greater the combustion intensity will be 27 .…”

Section: Resultsmentioning

confidence: 99%

Effects of chicken feather keratin on smoke suppression characteristics and flame retardancy of epoxy resin

Zheng

Zhu

et al. 2020

Polymers for Advanced Techs

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Chicken feather keratin (CK), a biomaterial that contains a large amount of nitrogen is extracted from chicken feathers and has significant potential for use as a flame retardant. In this study, CK and 9,10-dihydro-9-oxa-10-phosphenanthrene-10-oxide (DOPO) were added in different amounts to an epoxy resin (EP), and their flame retardancy and smoke suppression effects were studied. The results showed that CK

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“…incorporation of cyclotriphosphazene in a thermosetting polymer network could add several advantages to the polymer like for instance, it enhances the network thermal, mechanical and electrochemical properties. This could be attributed to the synergy of phosphorus and nitrogen [11][12][13]. However, they have poor compatibility with epoxy resin which leads to reduce mechanical properties of composites and limit their application.…”

Section: Introductionmentioning

confidence: 99%

Rheological and Electrical Study of a Composite Material Based on an Epoxy Polymer Containing Cyclotriphosphazene

et al. 2020

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In this work, we have studied, formulated, prepared, and characterized the rheological and electrical behavior of a composite material based on an epoxy resin Diglycidyl Ether of Bisphenol A (DGEBA) reinforced with hexaglycidyl cyclotriphosphazene (HGCP). The epoxy system was cured with 4,4’-methylene dianiline (MDA). DGEBA-HGCP-MDA epoxy composite materials with reinforced HGCP which varied from 5% to 10% by weight were prepared by mixing in the molten state. The morphology was evaluated by SEM. The rheological behavior was studied using small deformation rheology. The electrical characterization was carried out with a frequency variation range from 1 Hz to 100 KHz at room temperature. These measurements revealed that the rheological and electrical behaviors strongly depend on the quantity of HGCP in the DGEBA matrix. The linear viscoelastic properties study reveals that the modulus of elasticity G’ is dependent on the amount of HGCP present in the epoxy resin DGEBA. The capacitance-frequency measurements suggest a distribution of localized states in the band gap of the blends.

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Benzimidazolyl-substituted cyclotriphosphazene derivative as latent flame-retardant curing agent for one-component epoxy resin system with excellent comprehensive performance

Cited by 138 publications

References 40 publications

Montmorillonite-Synergized Water-Based Intumescent Flame Retardant Coating for Plywood

Montmorillonite-Synergized Water-Based Intumescent Flame Retardant Coating for Plywood

Effects of chicken feather keratin on smoke suppression characteristics and flame retardancy of epoxy resin

Rheological and Electrical Study of a Composite Material Based on an Epoxy Polymer Containing Cyclotriphosphazene

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