Citation

Han Z, Jiang Q, Du Z, Huey Hoon H, Yu Y, Zhang Y, Li G, Sun Y. J. Hazard. Mater. 2019; 373: 835-843.

Affiliation

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, China.

Copyright

(Copyright © 2019, Elsevier Publishing)

DOI

10.1016/j.jhazmat.2019.04.001

PMID

31005019

Abstract

A novel environmental-friendly unpacking powder for fireworks which has no sulfur, no magnesium, no aluminum or their alloys has been prepared in this study: potassium perchlorate (75%), potassium hydrogen terephthalate (13%), micronano porous silicon (9%), carbon (2%), ferrocene (1%). The PM2.5 and PM10 were collected by the ambient air particulate sampler, and the gas product was tested with a smoke analyzer and gas chromatograph to investigate its environmental-friendly performance. The detonation radius was measured by similar triangulation method, and p-t curves were measured in a closed bomb to investigate its practicality. The heat of combustion, sensitivity and hygroscopicity of the formula were measured according to China fireworks industry standard to verify the safety of the novel unpacking powder. The test results suggest that new unpacking powder using micronano porous silicon can effectively reduce the PM content and the product does not contain SO₂, so it can be applied to export.

Copyright © 2019 Elsevier B.V. All rights reserved.

Language: en

Keywords

Environmental-friendly; Firework; Security; Unpacking powder