Interfacial Adhesion Properties of PBT Azide Propellant Matrix and Defective AP Fillers
Author Information
Author(s): Jia Xianzhen, Tang Linjing, Liu Ruipeng, Liao Hongjun, Cao Liang, Tang Xianqiong, Cao Peng, Mavrantzas Vlasis
Primary Institution: National Key Laboratory of Energetic Materials, Xi’an Modern Chemistry Research Institute, Xi’an, China
Hypothesis
How do filler defects and matrix crosslinking degree affect the interfacial adhesion properties of propellants?
Conclusion
Higher crosslinking of the PBT matrix enhances interfacial adsorption strength, while defects on the AP surface can either enhance or reduce this strength depending on their size.
Supporting Evidence
- Defects on the AP surface can enhance interfacial adsorption by increasing contact area.
- Higher crosslinking degrees in the PBT matrix lead to stronger interfacial interactions.
- Temperature fluctuations affect binding energy and interfacial adsorption strength.
- Defects of 30 Å width provide optimal conditions for enhanced adsorption.
Takeaway
This study looks at how well a special glue sticks to different surfaces, especially when there are bumps or holes in the surfaces.
Methodology
All-atom molecular dynamics simulations were used to analyze interfacial adsorption behavior and mechanisms.
Limitations
The study primarily focuses on molecular dynamics simulations, which may not fully capture all real-world conditions.
Digital Object Identifier (DOI)
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