Influence of Polydopamine Coating on the Thermal Stability of 2,6-Diamino-3,5-dinitropyrazine-1-oxide Explosive under Different Heating Conditions

•PDA-coated LLM-105 was synthesized and characterized for the first time.•The influence of PDA coating on the thermal stability of LLM-105 varies under different heating conditions.•Heat released amount of PDA and heat-transfer rates between the samples and environment regulate such effect.