State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People's Republic of China.
The State Key Laboratory of Special Cable Technology of Shanghai Electric Cable Research Institute Co., Ltd., 1000 Junhong Road, Shanghai 200093, People's Republic of China.
J Colloid Interface Sci. 2022 Feb;607(Pt 2):1300-1312. doi: 10.1016/j.jcis.2021.09.027. Epub 2021 Sep 25.
Flexible polyurethane foam (FPUF) is the most used polyurethane, but the highly flammable characteristic limits its widespread usage. In this work, ZIF-8@TiCTwas synthesized to reduce the heat and toxic gases of FPUF. Flame-retardant FPUF was characterized by cone calorimeter (Cone), thermogravimetric analysis/fourier-transform infrared spectroscopy (TG-FTIR), tensileand compression tests. Compared with pure FPUF, these results showed that the peak of heat release rate (PHRR), total heat release (THR), CO and HCN of FPUF6 decreased by 46%, 69%, 27% and 43.5%, respectively. Moreover, the tensile and compression strength of FPUF6 demonstrated a 52% and 130% increment, respectively. The superior dual metal catalytical charring-forming effect and physical barrier effect of ZIF-8@TiCT were achieved. In summary, a simple and reliable strategy for preparing flame-retardant FPUF with reinforced mechanical and fire safety properties was provided.
柔性聚氨酯泡沫（FPUF）是应用最广泛的聚氨酯，但由于其高度易燃的特性，限制了其广泛应用。在这项工作中，合成了 ZIF-8@TiCT 以降低 FPUF 的热量和有毒气体。采用锥形量热仪（Cone）、热重分析/傅里叶变换红外光谱（TG-FTIR）、拉伸和压缩试验对阻燃 FPUF 进行了表征。与纯 FPUF 相比，这些结果表明，FPUF6 的热释放率峰值（PHRR）、总热释放（THR）、CO 和 HCN 分别降低了 46%、69%、27%和 43.5%。此外，FPUF6 的拉伸和压缩强度分别提高了 52%和 130%。实现了 ZIF-8@TiCT 的双金属催化成炭和物理阻隔的协同效应。综上所述，提供了一种简单可靠的制备具有增强机械和防火性能的阻燃 FPUF 的策略。
