PreparationCharacterization and Electrostatic Properties of GAP-coated Zirconium Composite Particles

doi:10.3969/j.issn.1000-1093.2016.01.008

Abstract

Abstract: Zirconium metal prepared as powder is of interest as an energetic material due to its good combustion performance, and high density, which affords the opportunity to use zirconium powders as fuel in solid propellants. Unfortunately, the application of current zirconium powders is limited due to its high electrostatic discharge sensitivity, making the zirconium powders more pyrophoric and less amenable to functionalization. Glycidyl azide polymer (GAP), a kind of energetic binder as coating material, is selected to improve the security, and coated on the surface of zirconium powder directly to obtain Zr/GAP composite particles with reduced electrostatic discharge sensitivity. The measured results show that 50% firing energy (E₅₀) of Zr/GAP is increased from 5.13 mJ to 24.91 mJ, meanwhile the good combustion performance and high density of Zr powder are also reserved. This work provides technology support for its application in high density propellant.

Key words: ordnance science and technology, zirconium, GAP, electrostatic discharge sensitivity, coating, characterization, thermal analysis

CLC Number:

TJ04

JIANG Han-yu, ZHAO Feng-qi, HAO Hai-xia, QU Wen-gang, XU Si-yu, AN Ting, LI Meng. PreparationCharacterization and Electrostatic Properties of GAP-coated Zirconium Composite Particles[J]. Acta Armamentarii, 2016, 37(1): 50-55.

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