目的 评价共聚型网状聚氨酯抑爆材料的使用性能和抑爆功能。方法 介绍共聚型网状聚氨酯抑爆材料的抑爆机理，针对车辆燃油箱的使用工况及抑爆考核要求，模拟油箱装填抑爆材料后对油箱开展加油、振动、高温贮存等适用性试验，以及带油补焊、40 mm火箭弹静爆等抑爆试验。结果 该材料具有较好的消沫功能，能降低油料中固体颗粒污染物含量，高温长贮后0号柴油与-35号柴油中的固体颗粒污染物含量分别为空白油样的37.6%，52%，对油箱进行带油补焊试验过程中、补焊完成后的射击测试，以及40 mm火箭弹的静爆试验均未发生爆炸。结论 共聚型网状聚氨酯抑爆材料与燃油的相容性较好，具有优异的抑爆性能。

The work aims to evaluate usability and explosion-proof function of copolymerization reticulated polyurethane explosion-proof material. The explosion-proof mechanism of copolymerization reticulated polyurethane explosion-proof material was introduced. According to the working conditions and explosion-proof assessment requirements of the vehicle's fuel tank, the adaptability test of refueling, vibration and high-temperature storage, as well as the oil patching, 40 mm projectile static blast experiment and other explosion-proof tests with the fuel tanks filled with explosion-proof material were carried out. The result showed that, the materials had good defoaming effect and it could reduce the solid particle contaminants in fuel. Compared to the blank diesel sample, the contents of solid particle contaminants in 0# and -35# diesel were respectively 37.6% and 52% after the high-temperature storage for a long time. The fuel tanks had no explosion both in the shooting test during and after the oil patching and in the 40 mm projectile static blast experiment. The copolymerization reticulated polyurethane explosion-proof material has good compatibility with the fuel and excellent explosion-proof performance.