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Updated: Jun 27, 2026
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Preparation and Reactivity of Gasless Nanostructured Energetic Materials
Published on: April 2, 2015
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Preparation of Al@FTCS/P(VDF-HFP) Composite Energetic Materials and Their Reaction Properties
Xiang Ke1,2, Lifang Deng1, Yanping Wang1,2
1College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu 233000, China.
Materials (Basel, Switzerland)
|July 13, 2024
Summary
This study enhances energetic materials by improving contact between aluminum nanoparticles and P(VDF-HFP) using FTCS. The new Al@FTCS/P(VDF-HFP) composites show significantly improved energy release and faster combustion.
Area of Science:
- Materials Science
- Chemical Engineering
- Nanotechnology
Background:
- Effective interfacial contact is crucial for boosting energy release in energetic materials.
- Aluminum nanoparticles (Al NPs) and Polyvinylidene fluoride-hexafluoropropylene (P(VDF-HFP)) are key components in energetic composites.
- Improving the interface between Al NPs and P(VDF-HFP) can enhance composite performance.
Purpose of the Study:
- To create a close-knit interfacial contact between Al NPs and P(VDF-HFP).
- To synthesize novel Al@FTCS/P(VDF-HFP) energetic composites.
- To investigate the impact of enhanced interfacial contact on the energetic properties.
Main Methods:
- Surface modification of Al NPs with 1H, 1H, 2H, 2H-Perfluorododecyltrichlorosilane (FTCS) via hydrolytic adsorption.
- Utilizing hydrogen bonding and C-F⋯F-C interactions for directed P(VDF-HFP) coating.
- Comparative analysis of Al@FTCS/P(VDF-HFP) with ultrasonically processed Al/P(VDF-HFP) using thermal analysis and combustion tests.
Main Results:
- Al@FTCS/P(VDF-HFP) exhibited a 57 °C lower reaction onset temperature.
- Heat release increased by 1646 J/g compared to the control.
- Ignition delay decreased by 52%, combustion time by 62%, and pressurization rate increased by 288%.
Conclusions:
- FTCS treatment activates Al NP reactivity by etching surface Al2O3, enhancing energy release.
- FTCS-directed P(VDF-HFP) growth around Al NPs significantly improves interfacial contact.
- The enhanced interfacial contact in Al@FTCS/P(VDF-HFP) leads to superior energetic performance and faster reaction kinetics.
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