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7765351 
Journal Article 
Preparation and characterization of HMX/EVA/hBNNSs micro- composites with improved thermal stability and reduced sensitivity 
Yang, Yue; Li, XD; Sun, Y; Tian, Jan; Liu, H; Wu, BiD; Wang, Jyu 
2021 
China Ordnance Industry Corporation 
17 
2 
650-656 
English 
WOS:000632639100010 
Hexagonal boron nitride nanosheets (HBNNSs) have huge potential in the field of coating materials owing to their remarkable chemical stability, mechanical strength and thermal conductivity. Thin-layer hBNNSs were obtained by a liquid-phase exfoliation of h-BN powders and incorporated into EVA coatings for improving the safety performance of 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX). HBNNSs and ethylene-vinyl acetate copolymer (EVA) were introduced to HMX by a solvent-slurry process. For comparison, the HMX/EVA and HMX/EVA/graphene (HMX/EVA/G) composites were also prepared by a similar process. The morphology, crystal form, surface element distribution, thermal decomposition property and impact sensitivity of HMX/EVA/hBNNSs composites were contrastively investigated. Results showed that as prepared HMX/EVA/hBNNSs composites were well coated with hBNNSs and EVA, and exhibited better thermal stability and lower impact sensitivity than that of HMX/EVA and HMX/EVA/G composites, suggesting superior performance of desensitization of hBNNSs in explosives. © 2020 The Authors 
Energetic materials; 2D (two dimensional) materials; HBNNSs (hexagonal boron nitride; nanosheets); HMX (1; 3; 5; 7-Tetranitro-1; 3; 5; 7-tetrazocane); Thermal stability; Mechanical sensitivity