Measurement of the Heat of Reaction of Polytetrafluoroethylene/Aluminum Composites Based on Laser Initiation

• Autorzy: Li S. , Wu Y. , Lin Q. , Huang C. , Yang S. , Li J.

Identyfikatory

DOI

10.22211/cejem/69264

• Języki publikacji: EN

Abstrakty

EN

Polytetrafluoroethylene/aluminum (PTFE/Al) composites are reactive materials which can release energy due to exothermic chemical reactions initiated under shock loading conditions. In order to accurately measure the potential maximum heat of reaction of PTFE/Al composites in an inert atmosphere, we propose in this paper a heat of reaction measurement system based on laser initiation. Our results show that the measurement system successfully initiates the chemical reaction between PTFE and Al in an argon atmosphere. The comparison between theoretical calculations and experimental data demonstrates that our measurement method is highly accurate and exhibits excellent consistency. Thus, the heat of reaction measurement system based on laser initiation is applicable for measuring the heat of reaction of PTFE/Al composites and also other complicated reactive materials.

Słowa kluczowe

EN

reactive materials; PTFE/Al composites; heat of reaction; laser initiation

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2017
• Tom: Vol. 14, no. 3
• Strony: 534--546
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Li S.

• College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, P. R. China

autor

Wu Y.

• College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, P. R. China

autor

Lin Q.

• College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, P. R. China

autor

Huang C.

• College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, P. R. China

autor

Yang S.

• College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, P. R. China

autor

Li J.

• College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, P. R. China

Bibliografia

• [1] Wang, H. F.; Zheng, Y. F.; Yu, Q. B.; Liu, Z. W.; Yu, W. M. Impact-induced Initiation and Energy Release Behavior of Reactive Materials. J. Appl. Phys. 2011, 110: 074904-074904-6.
• [2] Willis, M. J.; Jason, T. D. Effect of Aluminum Particle Size on the Impact Initiation of Pressed PTFE/Al Composite Rods. AIP Conf. Proc. 2007, 955: 795.
• [3] Li, X. Y.; Yang, H. T.; Li, Y. C. Characterization of Thermal Reaction of Aluminum/Copper(II) Oxide/Poly(Tetrafluoroethene) Nanocomposite by Thermogravimetric Analysis, Differential Scanning Calorimetry, Mass Spectrometry and X-ray Diffraction. Thermochim. Acta 2015, 621: 68-73.
• [4] Mock, W. Jr.; Holt, W. H. Impact Initiation of Rods of Pressed Polytetrafluoroethylene (PTFE) and Aluminum Powders. AIP Conf. Proc. 2006, 845, 1097.
• [5] Ames, R. G. Energy Release Characteristics of Impact-initiated Energetic Materials. Mater. Res. Soc. Symp. Proc. 2006, 896: 123-132.
• [6] Yang, S. Q.; Xu, S. L.; Zhang, T. Preparation and Performance of PTEF/Al Reactive Materials. J. Natl. Univ. Def. Tech. 2008, 6: 39-42.
• [7] Magee, J. L.; Dewitt, T. W.; Smith, E. C. A Photocalorimeter: the Quantum Efficiency of Photosynthesis in Algae. J. Am. Chem. Soc. 1939, 61: 3529-3533.
• [8] De, N. N.; Cummock, N. R.; Gunduz, I. E.; Tappan, B. C.; Son, S. F. Photoflash and Laser Ignition of Select High-nitrogen Materials. Combust. Flame 2016, 167:207-217.
• [9] Abdulazeem, M. S.; Alhasan, A. M.; Abdulrahmann, S. Initiation of Solid Explosives by Laser. Int. J. Therm. Sci. 2011, 50: 2117-2121.
• [10] Liau, Y. C.; Kim, E.S.; Yang, V. A Comprehensive Analysis of Laser-induced Ignition of RDX Monopropellant. Combust. Flame 2001, 126: 1680-1698.
• [11] Nazarian, A.; Presser, C. Thermal Signature Measurements for Ammonium Nitrate/Fuel Mixtures by Laser Heating. Thermochim. Acta 2016, 623: 120-135.
• [12] Michelle, L. P.; Steven, W. D. The Influence of Alumina Passivation on Nano-Al/Teflon Reactions. Thermochim. Acta 2009, 493: 109-110.
• [13] Osborne, D. T.; Pantoya, M. L. Effect of Al Particle Size on the Thermal Degradation of Al/Teflon Mixtures. Combust. Sci. Tech. 2007, 179: 1467-1480.
• [14] He, L. R.; Xiao, L. Q.; Jian, X. X.; Zhou, W. L. Thermal Behavior of n-Al/n-PTFE Composite. Chin. J. Explos. Propel. 2012, 5: 29-32.