Preparation of novel phosphorus-nitrogen-silicone grafted graphene oxide and its synergistic effect on intumescent flame-retardant polypropylene composites

Yuan, Gaowei; Zhang, Nana; Chen, Yinghong; Jia, Ying‐Gang

doi:10.1039/c8ra07418f

Cited by 29 publications

(10 citation statements)

References 41 publications

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“…In addition, there are other nanocarbon materials, such as carbon black and expandable graphite. Both have been used to prepare nanocomposites with strong mechanical properties, increased thermal stability, thermal conductivity, and electrical conductivity and flame retardancy [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Nanocarbon-Based Flame Retardant Polymer Nanocomposites

et al. 2021

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In recent years, nanocarbon materials have attracted the interest of researchers due to their excellent properties. Nanocarbon-based flame retardant polymer composites have enhanced thermal stability and mechanical properties compared with traditional flame retardant composites. In this article, the unique structural features of nanocarbon-based materials and their use in flame retardant polymeric materials are initially introduced. Afterwards, the flame retardant mechanism of nanocarbon materials is described. The main discussions include material components such as graphene, carbon nanotubes, fullerene (in preparing resins), elastomers, plastics, foams, fabrics, and film–matrix materials. Furthermore, the flame retardant properties of carbon nanomaterials and their modified products are summarized. Carbon nanomaterials not only play the role of a flame retardant in composites, but also play an important role in many aspects such as mechanical reinforcement. Finally, the opportunities and challenges for future development of carbon nanomaterials in flame-retardant polymeric materials are briefly discussed.

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Section: Introductionmentioning

confidence: 99%

Nanocarbon-Based Flame Retardant Polymer Nanocomposites

et al. 2021

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“…Two‐dimensional layered nanomaterials, such as graphene, 10–12 montmorillonite (MMT), 13 layered double hydroxides (LDHs), 14 and zirconium phosphate (ZrP), 15,16 are usually favorable to the better quality of char layers formed by IFR for their barrier effect. As a solid acid, ZrP not only enhances the strength of the char layer but also catalyzes PP carbonization at high temperature due to its rich Brønsted acid sites (H + ) and Lewis acid sites (Zr 4+ ) 17 .…”

Section: Introductionmentioning

confidence: 99%

N‐alkoxyamine‐containing macromolecular intumescent flame‐retardant‐decorated ZrP nanosheet and their synergism in flame‐retarding polypropylene

Chen

Lai

et al. 2021

Polymers for Advanced Techs

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High‐efficiency macromolecular intumescent flame retardant (MIFR) is urgently demanded but of great challenge. In this work, a novel N‐alkoxyamine‐containing MIFR‐decorated zirconium phosphate (ZrP) nanosheet (denoted as RQMIFR‐ZrP) was synthesized and combined with ammonium polyphosphate (APP) to endowed polypropylene (PP) with excellent flame retardancy. With the addition of 6.3 wt% RQMIFR‐ZrP and 18.7 wt% APP, PP classed a UL‐94 V‐0 rating with a high LOI value of 39.5%. Moreover, the peak heat release rate, the total heat release, the peak of CO production, and the peak of CO2 production of PP/RQMIFR‐ZrP/APP decreased by 94.0%, 83.2%, 91.3%, and 91.7%, respectively. It revealed that RQMIFR‐ZrP not only generated nitroxyl radicals (NO•) to suppress the chain degradation of PP but also promoted to form high‐quality intumescent char layers with the catalytic carbonization and layered barrier effect of ZrP nanosheet, which effectively prevented PP from burning. This work provides a new approach to preparing high‐performance flame‐retardant polymer.

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“…EPS/MDI/IFR3 had greater P/C and N/C ratios than EPS/IFR3, which indicates that more P- and N-containing compounds were formed in the char residue. According to Yuan et al, more P and N remaining in the char layer is beneficial to produce a more compact char layer that efficiently limits heat and mass transfer [ 63 ].…”

Section: Resultsmentioning

confidence: 99%

Expanded Polystyrene Beads Coated with Intumescent Flame Retardant Material to Achieve Fire Safety Standards

Bhoite

Kim²,

Jo³

et al. 2021

Polymers

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The compatibility and coating ratio between flame retardant materials and expanded polystyrene (EPS) foam is a major impediment to achieving satisfactory flame retardant performance. In this study, we prepared a water-based intumescent flame retardant system and methylene diphenyl diisocyanate (MDI)-coated expandable polystyrene microspheres by a simple coating approach. We investigated the compatibility, coating ratio, and fire performance of EPS- and MDI-coated EPS foam using a water-based intumescent flame retardant system. The microscopic study revealed that the water-based intumescent flame retardant materials were successfully incorporated with and without MDI-coated EPS microspheres. The cone calorimeter tests (CCTs) of the MDI-coated EPS containing water-based intumescent flame retardant materials exhibited better flame retardant performance with a lower total heat release (THR) 7.3 MJ/m2, peak heat release rate (PHRR) 57.6 kW/m2, fire growth rate (FIGRA) 2027.067 W/m2.s, and total smoke production (TSP) 0.133 m2. Our results demonstrated that the MDI-coated EPS containing water-based intumescent flame retardant materials achieved flame retarding properties as per fire safety standards.

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Preparation of novel phosphorus-nitrogen-silicone grafted graphene oxide and its synergistic effect on intumescent flame-retardant polypropylene composites

Abstract: The combination of PMGO and IFR significantly improves the flame retardancy and surface hydrophobicity of PP materials.

Cited by 29 publications

References 41 publications

Nanocarbon-Based Flame Retardant Polymer Nanocomposites

Nanocarbon-Based Flame Retardant Polymer Nanocomposites

N‐alkoxyamine‐containing macromolecular intumescent flame‐retardant‐decorated ZrP nanosheet and their synergism in flame‐retarding polypropylene

Expanded Polystyrene Beads Coated with Intumescent Flame Retardant Material to Achieve Fire Safety Standards

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