Experimental research on the cook-off energy release of Al/PTFE mixed powder in closed container
-
Zepeng Duan
,
Chuang Chen
Abstract
To evaluate the reactive energy release of the Al/Polytetrafluoroethylene (PTFE) mixed powder (Al and PTFE with a mass percentage of 26.5%/73.5%). Based on the traditional formula, three kinds of Al/PTFE test samples with different dosages (4, 6.5, and 9 g) were mixed. By using the self-designed airtight container, and combining with the overpressure sensor, the transient optical fiber pyrometer, and the infrared thermography. The overpressure , the visible light radiation temperature in the closed container, and the infrared light radiant temperature of the container’s outer wall have been obtained by real-time measurements during the process of cooking off, and the reaction products are analyzed by X-ray energy spectrum (EDS) and X- ray diffraction (XRD). The experimental results show that most of the solid products of Al/PTFE powder in the closed container are AlF3 and a small number of intermediate carbon compositions. The released energy during the firing process of the active material Al/PTFE increases with the increase of the mixing amount; The bake-off energy of active material Al/PTFE mixture per unit mass in a closed container is about 10.2 kJ/g, and when the oxygen content in the closed container is sufficient, active material Al/PTFE per unit mass releases more energy.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 11472178
Funding source: Foundation of National Key Laboratory of Shock Wave and Detonation Physics
Award Identifier / Grant number: 11802182
Funding source: Liaoning Province Natural Fund Guidance Plan
Award Identifier / Grant number: 2019-ZD-0262
Acknowledgments
The research was supported by National Science Foundation of China (11472178, 11802182) and Liaoning Province Natural Fund Guidance Plan (2019-ZD-0262), Foundation of National Key Laboratory of Shock Wave and Detonation Physics (Grant No. 6142A03182009) to provide fund for conducting experiments.
Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: The research was supported by National Science Foundation of China (11472178, 11802182) and Liaoning Province Natural Fund Guidance Plan (2019-ZD-0262), Foundation of National Key Laboratory of Shock Wave and Detonation Physics (Grant No. 6142A03182009) to provide fund for conducting experiments.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
Data availability: The data that support the findings of this study are available from the corresponding author upon reasonable request.
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Artikel in diesem Heft
- Articles
- Experimental research on the cook-off energy release of Al/PTFE mixed powder in closed container
- Micro-emulsion synthesis of La1 − xCrxFeO3 nanoparticles: effect of Cr doping on ferroelectric, dielectric and photocatalytic properties
- Experimental and theoretical evaluation of zinc recovery from zinc oxide ore: process optimization and simulation using Aspen Plus software
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- Numerical investigation of hydrodynamics and heat transfer for Bingham-pseudoplastic fluids in an industrial coiled stirred tank
- Synthesis, characterization and photocatalytic activity evaluation of WO3, TiO2 and WO3/TiO2 supported on zeolite faujasite
- Usage of textile dyes BB41 and BR46 for microscopic examination of filamentous bacteria in activated sludge reactor: a new staining method
- Titania-termite hill composite as a heterogeneous catalyst: preparation, characterization, and performance in transesterification of waste frying oil
- Short Communications
- Easy removal of nitrate and phosphate anions from water by low cost chitosan and activated charcoal
- Synthesis of Ag decorated Zn-Co/TiO2 nanocomposites
- Determination of catastrophic sets of a tubular chemical reactor by two-parameter continuation method
