Waterborne polyurethane composites flame retardancy based on the bi-DOPO derivatives and dangling poly(dimethylsiloxane) chains

Liang, Xuyang; Liu, Chao; Chen, Yuxin; Yin, Fulin; Bao, Dongmei; Guoyong, Zhou

doi:10.1016/j.porgcoat.2022.107388

Cited by 10 publications

(7 citation statements)

References 29 publications

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“…FTIR: 3441 cm −1 (−OH), 2633-2853 cm −1 (−CH 2 −), 1656 cm −1 (−C=N−), 1278 cm −1 (−P=O), 754 cm −1 (−C-H). 1 H NMR (400 MHz, DMSO, ppm): 7.06-7.74 (Ar−H,9H), 3.59 (−CH 2 -O−,2H), 2.89 (−CH 2 -N−,2H), 2.83 (−CH 2 −C=N,2H), 1.98 (−CH 2 −P=O,2H). 31 P NMR (161.9 MHz, DMSO, ppm): 24.74.…”

Section: Synthesis Of 2-hydroxyethanmentioning

confidence: 99%

“…Waterborne polyurethanes (WPUs) exhibit many advantages over solvent-based polyurethanes, such as high security and reliability, low VOCs (low volatile organic compounds), less damage to the coated surface, easy operation, and transportation, and have been widely applied as an alternative solution for solvent-based polyurethanes in the fields of coatings, leather finishing agents, fabric finishing agents, adhesives, paper, and fiber sizing agent, etc. [ 1 , 2 , 3 ]. Nevertheless, waterborne polyurethanes have the same high flammability characteristics as most organic polymer materials, which greatly limits the further expansion of their applications [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

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Robust, Flame-Retardant, and Anti-Corrosive Waterborne Polyurethane Enabled by a PN Synergistic Flame-Retardant Containing Benzimidazole and Phosphinate Groups

et al. 2023

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Waterborne polyurethanes (WPUs) have attracted great interest owing to their environmentally friendly properties, and are wildly applied in production and daily life. However, waterborne polyurethanes are flammable. Up to now, the challenge remains to prepare WPUs with excellent flame resistance, high emulsion stability, and outstanding mechanical properties. Herein, a novel flame-retardant additive, 2-hydroxyethan-1-aminium (2-(1H-benzo[d]imidazol-2-yl)ethyl)(phenyl)phosphinate (BIEP-ETA) has been synthesized and applied to improve the flame resistance of WPUs, which has both phosphorus nitrogen synergistic effect and the ability to form hydrogen bonds with WPUs. The WPU blends (WPU/FRs) exhibited a positive fire-retardant effect in both the vapor and condensed phases, with significantly improved self-extinguishing performance and reduced heat release value. Interestingly, thanks to the good compatibility between BIEP-ETA and WPUs, WPU/FRs not only have higher emulsion stability, but also have better mechanical properties with synchronously improved tensile strength and toughness. Moreover, WPU/FRs also exhibit excellent potential as a corrosion-resistant coating.

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Section: Synthesis Of 2-hydroxyethanmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Robust, Flame-Retardant, and Anti-Corrosive Waterborne Polyurethane Enabled by a PN Synergistic Flame-Retardant Containing Benzimidazole and Phosphinate Groups

et al. 2023

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“…The synergistic effects of these factors contributed to the designable flammability of the WPU coating. Further investigation revealed that Si-containing units could also efficiently balance out the usual loss of other properties in flame-retarded WPU [ 99 , 100 , 101 ]. For example, both the tensile strength and elongation of FR/Si-WPU, at break, were found to increase, which was hard to achieve for flame-retarded polyurethane.…”

Section: Phosphorus-heteroatom Synergistic Flame Retardantsmentioning

confidence: 99%

Strategy for Constructing Phosphorus-Based Flame-Retarded Polyurethane Elastomers for Advanced Performance in Long-Term

Luo,

Geng,

Zhang

et al. 2023

Polymers

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Polyurethane elastomer (PUE), which is widely used in coatings for construction, transportation, electronics, aerospace, and other fields, has excellent physical properties. However, polyurethane elastomers are flammable, which limits their daily use, so the flame retardancy of polyurethane elastomers is very important. Reactive flame retardants have the advantages of little influence on the physical properties of polymers and low tendency to migrate out. Due to the remarkable needs of non-halogenated flame retardants, phosphorus flame retardant has gradually stood out as the main alternative. In this review, we focus on the fire safety of PUE and provide a detailed overview of the current molecular design and mechanisms of reactive phosphorus-containing, as well as P-N synergistic, flame retardants in PUE. From the structural characteristics, several basic aspects of PUE are overviewed, including thermal performance, combustion performance, and mechanical properties. In addition, the perspectives on the future advancement of phosphorus-containing flame-retarded polyurethane elastomers (PUE) are also discussed. Based on the past research, this study provides prospects for the application of flame-retarded PUE in the fields of self-healing materials, bio-based materials, wearable electronic devices, and solid-state electrolytes.

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“…Heat diffuses in the air, accelerates the decomposition of polymers, promotes the mixing of free radicals and oxygen, accelerates combustion, and gradually expands the combustion area, leading to a fire. The flame-retardant mechanisms of polymers include gas-phase flame retardancy and condensed-phase flame retardancy [1]. Gas-phase flame retardancy refers to the production of free radical inhibitors by heating or combustion of materials, thereby interrupting the combustion chain reaction.…”

Section: Intrinsic Flame-retarded Nylon 6 Moleculesmentioning

confidence: 99%

Flame Retardancy of Nylon 6 Fibers: A Review

et al. 2023

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As synthetic fibers with superior performances, nylon 6 fibers are widely used in many fields. Due to the potential fire hazard caused by flammability, the study of the flame retardancy of nylon 6 fibers has been attracting more and more attention. The review has summarized the present research status of flame-retarded nylon 6 fibers from three aspects: intrinsic flame-retarded nylon 6, nylon 6 composites, and surface strategies of nylon 6 fibers/fabrics. The current main focus is still how to balance the application performances, flame retardancy, and production cost. Moreover, melt dripping during combustion remains a key challenge for nylon 6 fibers, and the further developing trend is to study novel flame retardants and new flame-retardancy technologies for nylon 6 fibers.

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Waterborne polyurethane composites flame retardancy based on the bi-DOPO derivatives and dangling poly(dimethylsiloxane) chains

Cited by 10 publications

References 29 publications

Robust, Flame-Retardant, and Anti-Corrosive Waterborne Polyurethane Enabled by a PN Synergistic Flame-Retardant Containing Benzimidazole and Phosphinate Groups

Robust, Flame-Retardant, and Anti-Corrosive Waterborne Polyurethane Enabled by a PN Synergistic Flame-Retardant Containing Benzimidazole and Phosphinate Groups

Strategy for Constructing Phosphorus-Based Flame-Retarded Polyurethane Elastomers for Advanced Performance in Long-Term

Flame Retardancy of Nylon 6 Fibers: A Review

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