Interface engineering of graphene oxide containing phosphorus/nitrogen towards fire safety enhancement for thermoplastic polyurethane

Cao, Xianwu; Zhao, Wanjing; Huang, Jingshu; He, Yun; Liang, Xiaoguang; Su, Ying; Wu, Wei; Li, Robert K.Y.

doi:10.1016/j.coco.2021.100821

Cited by 28 publications

(13 citation statements)

References 26 publications

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“…23 The peak carbon monoxide production rate (PCOPR) and peak carbon dioxide production rate (PCO 2 PR) of PS/S-Fe-3.0 are 0.051% and 0.392%, respectively, which are significantly lower than those of the pure PS. 24 To further reveal the combustion behavior of the PS composite, the char residue after combustion was observed via SEM and a digital camera (Fig. 8).…”

Section: Resultsmentioning

confidence: 99%

The design of a metal–organic framework with flame-retardant performance and bionic hydrophobic surface inspired by the lotus leaf

et al. 2022

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Section: Resultsmentioning

confidence: 99%

The design of a metal–organic framework with flame-retardant performance and bionic hydrophobic surface inspired by the lotus leaf

et al. 2022

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“…The integrated area ratio of D-band and G-band (I D /I G ) in Raman spectra is often used to reflect the graphitization degree of samples. The lower I D /I G means the higher graphitization degree and quality of the char layer [ 7 , 60 ]. In Figure 8 , it is noteworthy that the values for I D /I G of pure TPU, TPU/BNNO, TPU/BNNO@Co 3 O 4 , and TPU/BNNO@Co 3 O 4 @PPZ are 3.06, 3.08, 2.98, and 2.85, respectively, which indicates the highest graphitization degree for the char residue of TPU/BNNO@Co 3 O 4 @PPZ.…”

Section: Resultsmentioning

confidence: 99%

Nanohybrid of Co3O4 Nanoparticles and Polyphosphazene-Decorated Ultra-Thin Boron Nitride Nanosheets for Simultaneous Enhancement in Fire Safety and Smoke Suppression of Thermoplastic Polyurethane

Tong

Zhao

et al. 2022

Polymers

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Thermoplastic polyurethane (TPU) is widely used in daily life due to its characteristics of light weight, high impact strength, and compression resistance. However, TPU products are extremely flammable and will generate toxic fumes under fire attack, threatening human life and safety. In this article, a nanohybrid flame retardant was designed for the fire safety of TPU. Herein, Co3O4 was anchored on the surface of exfoliated ultra-thin boron nitride nanosheets (BNNO@Co3O4) via coprecipitation and subsequent calcination. Then, a polyphosphazene (PPZ) layer was coated onto BNNO@Co3O4 by high temperature polymerization to generate a nanohybrid flame retardant named BNNO@Co3O4@PPZ. The cone calorimeter results exhibited that the heat release and smoke production during TPU combustion were remarkably restrained after the incorporation of the nanohybrid flame retardant. Compared with pure TPU, the peak heat release rate (PHRR) decreased by 44.1%, the peak smoke production rate (PSPR) decreased by 51.2%, and the peak CO production rate (PCOPR) decreased by 72.5%. Based on the analysis of carbon residues after combustion, the significant improvement in fire resistance of TPU by BNNO@Co3O4@PPZ was attributed to the combination of quenching effect, catalytic carbonization effect, and barrier effect. In addition, the intrinsic mechanical properties of TPU were well maintained due to the existence of the PPZ organic layer.

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“…In the condensed phase, the thermal degradation of the DOPO group in Lig-K-DOPO produces phosphoric acid derivatives, which can be further transformed into polyphosphoric acid derivatives by dehydration of the P− OH bond. 42 43 Consequently, the flame retardancy of Lig-K-DOPO-filled SBR samples was enhanced.…”

Section: Filler Dispersionmentioning

confidence: 99%

Triple Silicon, Phosphorous, and Nitrogen-Grafted Lignin-Based Flame Retardant and Its Vulcanization Promotion for Styrene Butadiene Rubber

Yan

Hou

et al. 2023

ACS Omega

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In this study, we present an innovative environmental silicon-, phosphorus-, and nitrogen-triple lignin-based flame retardant (Lig-K-DOPO). Lig-K-DOPO was successfully prepared by condensation of lignin with flame retardant intermediate DOPO-KH550 synthesized via Atherton–Todd reaction between 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and γ-aminopropyl triethoxysilane (KH550A). The presence of silicon, phosphate, and nitrogen groups was characterized by FTIR, XPS, and 31P NMR spectroscopy. Lig-K-DOPO exhibited advanced thermal stability compared with pristine lignin supported by TGA analysis. The curing characteristic measurement showed that addition of Lig-K-DOPO promoted the curing rate and crosslink density to styrene butadiene rubber (SBR). Moreover, the cone calorimetry results indicated Lig-K-DOPO conferred impressive flame retardancy and smoke suppression. The addition of 20 phr Lig-K-DOPO reduced SBR blends 19.1% peak heat release rate (PHRR), 13.2% total heat release (THR), 53.2% smoke production rate (SPR), and 45.7% peak smoke production rate (PSPR). This strategy provides insights into multifunctional additives and greatly extends the comprehensive utilization of industrial lignin.

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Interface engineering of graphene oxide containing phosphorus/nitrogen towards fire safety enhancement for thermoplastic polyurethane

Cited by 28 publications

References 26 publications

The design of a metal–organic framework with flame-retardant performance and bionic hydrophobic surface inspired by the lotus leaf

The design of a metal–organic framework with flame-retardant performance and bionic hydrophobic surface inspired by the lotus leaf

Nanohybrid of Co3O4 Nanoparticles and Polyphosphazene-Decorated Ultra-Thin Boron Nitride Nanosheets for Simultaneous Enhancement in Fire Safety and Smoke Suppression of Thermoplastic Polyurethane

Triple Silicon, Phosphorous, and Nitrogen-Grafted Lignin-Based Flame Retardant and Its Vulcanization Promotion for Styrene Butadiene Rubber

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