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<p>Traditional fire prevention technologies have primarily aimed at enhancing flame-retardant performance, often neglecting the integrated improvement of flow properties. A superhydrophobic coated flame-retardant fabric was developed, and a flow simulation test system was established to systematically investigate the effects of hydrophobic surfaces, polymers (polyethylene oxide, PEO, and guar gum, GG), and a surfactant (dodecyl hydroxy sulfobetaine, DHSB) on fluid flow behavior. The influence of the coating on flame retardancy and the effect of polymer-surfactant additives on the thermal stability of wood were also evaluated. Through comprehensive improvement rate assessment and Pearson correlation analysis, a highly consistent integrated trend was identified between the enhanced flow efficiency and the improved flame retardancy conferred by the superhydrophobic coating and the PEO/GG + DHSB composite systems, validating the effective integrated optimization within the designed formulations. The surfactant DHSB was found to optimize the polymer’s function within the fluid boundary layer and contributed to flame retardation through multiple mechanisms during pyrolysis, including gas dilution, char formation catalysis, and free radical quenching. Based on quantitative parameters such as the comprehensive improvement rate and correlation analysis, this study provides a clear basis for material design and additive optimization in various fire prevention application scenarios.</p>

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Integrated enhancement of fluidity and flame retardancy with polymer-surfactant and superhydrophobic coating

  • 期刊论文

  • 发表日期：

    2026年4月16日

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  • Jie Wang,
  • Junqing Meng,
  • Chunhui Lyu,
  • Yingpei Lyu

摘要

Traditional fire prevention technologies have primarily aimed at enhancing flame-retardant performance, often neglecting the integrated improvement of flow properties. A superhydrophobic coated flame-retardant fabric was developed, and a flow simulation test system was established to systematically investigate the effects of hydrophobic surfaces, polymers (polyethylene oxide, PEO, and guar gum, GG), and a surfactant (dodecyl hydroxy sulfobetaine, DHSB) on fluid flow behavior. The influence of the coating on flame retardancy and the effect of polymer-surfactant additives on the thermal stability of wood were also evaluated. Through comprehensive improvement rate assessment and Pearson correlation analysis, a highly consistent integrated trend was identified between the enhanced flow efficiency and the improved flame retardancy conferred by the superhydrophobic coating and the PEO/GG + DHSB composite systems, validating the effective integrated optimization within the designed formulations. The surfactant DHSB was found to optimize the polymer’s function within the fluid boundary layer and contributed to flame retardation through multiple mechanisms during pyrolysis, including gas dilution, char formation catalysis, and free radical quenching. Based on quantitative parameters such as the comprehensive improvement rate and correlation analysis, this study provides a clear basis for material design and additive optimization in various fire prevention application scenarios.