Constructing a bio-based flame retardant coating through co-depositing polydopamine and guanosine 5′-monophosphate disodium salt (GMP) for flexible polyurethane foam
作者：通過共沉積聚多巴胺和鳥苷 5''''-單磷酸二鈉鹽 (GMP) 構建用于軟質聚氨酯泡沫的生物基阻燃涂層D. Meng
關鍵字：Foam materials,Fire retardancy,Co-deposition,Bio-based compounds,Surface coating
論文來源：期刊
發表時間：2022年
The fire hazard posed by the inherent flammability and smoke toxicity of flexible polyurethane foam (FPUF) often necessitates the incorporation of flame retardants to meet stringent regulations. The development of environmentally friendly strategies to enhance the fire resistance of FPUF is of increasing importance and a significant amount of research has been devoted to this end. In this work, a bio-based coating was constructed by co-depositing polydopamine and guanosine 5′-monophosphate disodium salt (GMP) to increase the fire safety of FPUF. The coating significantly improved the flame retardancy of FPUF. The FPUF@PDA-GMP samples showed an LOI value of 24.5% with a self-extinguishing effect and exhibited reduced release of heat, smoke, CO, CO2, and HCN due to their compact and strong char. The compressive strength at 70% strain of FPUF@PDA-GMP was 8 times higher than that of the control FPUF sample. The coating had a little negative effect on the resilience and improved its elongation at break. This investigation has provided a useful method for designing and producing high-performance foams.
軟質聚氨酯泡沫 (FPUF) 固有的易燃性和煙霧毒性造成的火災危險通常需要加入阻燃劑以滿足嚴格的法規。開發提高 FPUF 耐火性的環保策略變得越來越重要，為此已進行了大量研究。在這項工作中，通過共沉積聚多巴胺和鳥苷 5'-單磷酸二鈉鹽 (GMP) 構建生物基涂層，以提高 FPUF 的防火安全性。該涂層顯著提高了FPUF的阻燃性。FPUF@PDA-GMP 樣品顯示出 24.5% 的 LOI 值，具有自熄效果，并表現出減少的熱量、煙霧、CO、CO 2釋放, 和 HCN 由于其緊湊和強焦。FPUF@PDA-GMP 在 70% 應變下的抗壓強度是對照 FPUF 樣品的 8 倍。涂層對回彈性有一點負面影響并提高了斷裂伸長率。該研究為設計和生產高性能泡沫提供了一種有用的方法。