Abstract：
Functional materials that can quickly absorb and degrade mustard gas are essential for chemical warfare emergency response kits. In this study, a fiber membrane with excellent adsorption and catalytic degradation activity was developed by solution blow spinning polystyrene (PS)/polyurethane (PU) and hydrothermal in situ growth of a zirconium-based MOF (MOF-808). The mechanical properties of the PS/PU fibers were improved by adding a trimethylolpropane tris (2-methyl-1-aziridine propionate) (TTMA) cross-linking agent. Moreover, the C═O bonds in TTMA provided abundant growth sites for MOF-808 in the hydrothermal process, thereby greatly increasing the loading capacity. The fiber surface was completely covered with the MOF-808 particles within 24 h. The PS/PU/TTMA/MOF-808 fiber membrane was used for the catalytic degradation of 2-chloroethyl ethyl sulfide (CEES). The degradation efficiency reached 97.7% after 72 h, indicating its great application potential in emergency wiping cloths for mustard gas adsorption and degradation.
摘要：
可以快速吸收和降解芥子气的功能材料对于化学战应急响应套件至关重要。在这项研究中,通过溶液吹塑纺丝聚苯乙烯（PS）/聚氨酯（PU）和水热原位生长锆基MOF（MOF-808），开发了具有优异吸附和催化降解活性的纤维膜。通过添加三羟甲基丙烷三（2-甲基-1-氮丙啶丙酸酯）（TTMA）交联剂来改善PS/PU纤维的机械性能。此外，TTMA中的C=O键在水热过程中为MOF-808提供了丰富的生长位点，从而大大提高了装载能力。纤维表面在24小时内完全被MOF-808颗粒覆盖。PS/PU/TTMA/MOF-808纤维膜用于2-氯乙基乙基硫醚（CEES）的催化降解。72h后降解效率达到97.7%,表明其在芥子气吸附和降解应急擦拭布中的巨大应用潜力。
