A novel environmental-friendly and safe unpacking powder without magnesium, aluminum and sulphur for fireworks

Zhiyue Han*, Qi Jiang, Zhiming Du, Hng Huey Hoon, Yue Yu, Yupeng Zhang, Gong Li, Yue Sun

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)835-843
Number of pages9
JournalJournal of Hazardous Materials
Volume373
DOIs
Publication statusPublished - 5 Jul 2019

Keywords

  • Environmental-friendly
  • Firework
  • Security
  • Unpacking powder

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