LLM-105基耐热传爆药的制备及热分解性质

Preparation and Thermal Decomposition Characteristics of Heat-resistant Booster Explosive Based on LLM-105

为提高LLM-105的耐热性能,采用溶液水悬浮法,以EPDM为粘接剂,制备了LLM-105/EPDM耐热传爆药。通过测试接触角、计算表面能验证了EPDM能够包覆LLM-105。采用SEM对包覆前后样品的形貌进行了表征,并对其热分解特陛进行了测试和分析。结果表明:造型粉表面形貌得到了明显改善,原料LLM-105的粒度与激光粒度仪测试结果基本一致;EPDM在一定程度上可降低LLM-105的热感度;与传统传爆药相比,LLM-105/EPDM具有更加优异的耐热性能和热稳定性。

In order to improve the property of heat-resistant of LLM-105, by use of EPDM as binder, heat-resistant booster explosive LLM-105/EPDM was prepared by solution-water suspension method. LLM-105 can be coated by EPDM, which is proved through testing contact angle and calculating surface energies. The molding powders LLM-105/EPDM was characterized with scanning eleclron microscope and the thermal decomposition characteristics were measured and analyzed. The results show that the morphology of molding powders was obviously improved, and the particle of LLM-105 tested by SEM was consistent with that by laster particle analyzer. The thermal sensitivities of LLM-105 can be decreased to certain extent by EPDM, and the properties of heat-resistant and thermal stability of LLM-105/EPDM were more excellent than that of traditional booster explosives.