Integrated effect of NH2-functionalized/triazine based covalent organic framework black phosphorus on reducing fire hazards of epoxy nanocomposites

Qiu, Shuilai; Zou, Bin; Zhang, Tao; Ren, Xiyun; Yu, Bin; Zhou, Yifan; Kan, Yongchun; Hu, Yuan

doi:10.1016/j.cej.2020.126058

Cited by 65 publications

(21 citation statements)

References 47 publications

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“…This can be attributed to the catalytic effect of BPs on carbon formation. Similar results have also been reported by Qiu et al 24–26 Such dense carbon layer act as a good barrier for heat and oxygen, resulting in enhanced flame retardant property of PET/GF.…”

Section: Resultssupporting

confidence: 88%

Glass fiber reinforced PET modified by few‐layer black phosphorus

Xiao

Wu³

et al. 2021

Polymers for Advanced Techs

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Glass fiber reinforced polyethylene terephthalate (PET/GF) with enhanced flame retardancy was prepared with few‐layer black phosphorus (BPs) for the first time. The performance of red phosphorus (RP) modified PET/GF was also investigated for comparison. Results show that PET/GF with 0.9 wt% BPs (PET/GF@BP‐0.9) can eliminate the ignition of cotton by dripping. The addition of 2.7 wt% of BPs can make the PET/GF sample pass UL 94 V‐0 classification, while a much higher of 6.3 wt% RP was needed to pass the same classification. Compared with neat PET/GF, the peak heat release rate (PHRR) and total heat release (THR) rate of PET/GF@BP‐2.7 decreases ca. 52.5% and 34.8%, respectively. The studies of char residues reveal that BPs could act as a catalyst for char formation and the formed char could roughen the surface of GF and thus restrain the “wick effect.” Thermogravimetric analysis/infrared spectrometry shows that the addition of BPs significantly inhibited the release of gas‐phase products. The attractive abilities of BPs as flame retardant provide a novel and effective way of PET/GF modification.

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Section: Resultssupporting

confidence: 88%

Glass fiber reinforced PET modified by few‐layer black phosphorus

Xiao

Wu³

et al. 2021

Polymers for Advanced Techs

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“…Since the nanosheet additive alters the mechanical properties of EP, it is generally believed that a rougher and more wrinkled fractured surface indicates more uniform dispersion of the nanosheets in the matrix. 40,41 As shown in the SEM images obtained at different magnifications (Fig. 2a–c), the four BP/EP composites have rough fracture surfaces with different degrees of corrugations and protrusions compared to bare BP.…”

Section: Resultsmentioning

confidence: 86%

Size-dependent flame retardancy of black phosphorus nanosheets

et al. 2022

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“…It shows that the absorbance of pyrolysis products from EP/CPS/Co is much lower than pristine EP, followed by EP/CPS (700). To analyse the effect of CPS (700) and CPS/Co on gases products (aromatic compounds, CO, CO 2 and hydrocarbons), four main kinds of volatiles [47,48] from EP and its composites are further studied and presented in Figure 9a-d. Compared to EP, the absorbance of the pyrolysis products from EP/CPS (700) has slightly decreased.…”

Section: Flame Retardant Mechanismmentioning

confidence: 99%

Peanut Shell Derived Carbon Combined with Nano Cobalt: An Effective Flame Retardant for Epoxy Resin

et al. 2021

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Biomass-derived carbon has been recognised as a green, economic and promising flame retardant (FR) for polymer matrix. In this paper, it is considered that the two-dimensional (2D) structure of carbonised peanut shells (PS) can lead to a physical barrier effect on polymers. The carbonised sample was prepared by the three facile methods, and firstly adopted as flame retardants for epoxy resin. The results of thermal gravimetric analysis (TGA) and cone calorimeter tests indicate that the carbon combined with nano Cobalt provides the most outstanding thermal stability in the current study. With 3 wt.% addition of the FR, both peak heat release rate (pHRR) and peak smoke production rate (PSPR) decrease by 37.9% and 33.3%, correspondingly. The flame retardancy mechanisms of the FR are further explored by XPS and TG-FTIR. The effectiveness of carbonised PS can be mainly attributed to the physical barrier effect derived by PS’s 2D structure and the catalysis effect from Cobalt, which contribute to form a dense char layer.

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Integrated effect of NH2-functionalized/triazine based covalent organic framework black phosphorus on reducing fire hazards of epoxy nanocomposites

Cited by 65 publications

References 47 publications

Glass fiber reinforced PET modified by few‐layer black phosphorus

Glass fiber reinforced PET modified by few‐layer black phosphorus

Size-dependent flame retardancy of black phosphorus nanosheets

Peanut Shell Derived Carbon Combined with Nano Cobalt: An Effective Flame Retardant for Epoxy Resin

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