Research of the effect of hydrated salt-based phase change composites on the safety properties of HMX-based PBX
Source abstract
Abstract
To explore a new functional explosive with improved safety performance, this study synthesized a hydrated salt-based phase change composite (PCC) using magnesium sulfate heptahydrate and ammonium aluminum sulfate dodecahydrate as raw materials. Additionally, HMX/F2602/PCC composite microspheres were prepared via spray drying. The HMX/F2602/PCC composite microspheres were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), and impact sensitivity testing. The results indicate that HMX/F2602/PCC composite microspheres exhibit superior morphology and safety, compared with HMX/F2602 composite microspheres. Under the premise that the thermal sensitivity of HMX-based PBX remains essentially unchanged, the apparent activation energy decreases by 34.46 kJ/mol and 58.85 kJ/mol when the PCC content is 1% and 1.5%, respectively. Moreover, compared with HMX/F2602 composite microspheres, the characteristic drop heights of HMX/F2602/PCC composite microspheres with three different mass ratios increase by 5.72 cm, 10.55 cm, and 14.68 cm, respectively. Correspondingly, their impact sensitivity is significantly reduced, and their safety performance is notably improved.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Energetic Materials and Combustion · Flame retardant materials and properties · Thermal and Kinetic Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Environment and Safety Engineering, North University of China 1 , Taiyuan 030051,
Comprehensive Administrative Law Enforcement Team for Emergency Management of Gujiao City 2 , Taiyuan 030051,
Funding
the Graduate Student Innovation Project of Shanxi Province
References (29)
Show source-provided references
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