Bioinspired Fabrication of Insensitive HMX Particles with Polydopamine Coating. Issue 6 (28th July 2016)

• Record Type: Journal Article
• Authors: Zhu, Qing; Xiao, Chun; Li, Shangbin; Luo, Guan
• Is Part Of: Propellants, explosives, pyrotechnics. Volume 41:Issue 6(2016)
• Page Start: 1092
• Page End: 1097
• Publication Date: 2016-07-28
• Subjects: HMX particles -- HMX@PDA particles -- PDA coating -- Insensitive -- Adhesive properties; Propellants -- Periodicals; Explosives -- Periodicals; 662.2
• DOI: 10.1002/prep.201600021
• Languages: English
• ISSNs: 0721-3115

Abstract

Abstract: The development of a facile method for large scale production of insensitive HMX particles is of great importance for energetic materials, especially for insensitive munitions. Inspired by mussels, HMX particles with a thin, robust, wettable and uniform coating based on the self‐polymerization of dopamine were prepared by one‐step solution stirring processes in the study. The as‐prepared HMX@PDA particles showed stable shape, size, and polymorphy compared with original HMX particles. With PDA (polydopamine) coating, the HMX@PDA particles exhibited better wettability, which could improve the adhesive properties between particles and other liquid components in a PBX (plastic bonded explosive). Furthermore, the mechanical sensitivities were decreased for the HMX@PDA particles because of the uniform and smooth PDA coating decreasing the hot spots on the surface of the HMX particles. HMX@PDA particles produced by a facile scalable process might provide a promising substitute for sensitive HMX particles to enhance the safety and adhesive properties when used in PBX. Abstract :