Synergistic Effect of Amino-Modified Co-MOF and APP on Improvement of the Fire Safety of the Rigid Polyurethane Foam

作者：Zijin Chen, Shujie Yuan, Xiaoxue Xu · 发表于：ACS Omega · 年份：2024 · DOI：10.1021/acsomega.4c08026 · 被引用次数：5 · 研究领域：Flame retardant materials and properties、Polymer composites and self-healing

High Resolution Image Download MS PowerPoint Slide The combustion of rigid polyurethane foam (RPUF) generates significant amounts of toxic and high-temperature smoke, which restricts its application. Here, an amino-modified Co-MOF (NH 2 –Co-MOF) was synthesized and it was used in conjunction with ammonium polyphosphate (APP) to decrease the flammability of RPUF. We obtained the expected results: the fire safety of RPUF was greatly enhanced by the addition of NH 2 –Co-MOF and APP. Compared to neat RPUF, the peak heat release rate (pHRR) and total heat release (THR) values of N–C/A/RPUF decreased by 22.5 and 37.4%, respectively. Based on the analysis of combustion products of the gaseous and condensed phases, it can be seen that the synergistic use of NH 2 –Co-MOF with APP enhances the barrier effect, dilutes combustible gases, and quenches the combustion chain reaction.