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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/045/0175

    • Keywords

       

      Firework; free-standing film; magnesium boride (MgB$_2$); sodium nitrite (NaNO$_2$); poly(vinyl alcohol) (PVA).

    • Abstract

       

      We have demonstrated a simple fabrication methodology of free-standing polymer composite film firework that sparkles, provides colour display and moderate sound, yet is less polluting. The polymer composite film fireworks arecomposed of magnesium boride (MgB$_2$), sodium nitrite (NaNO$_2$) and poly(vinyl alcohol) (PVA). This study also suggested that a flammable, explosive powder composition can be made of two very common inorganic precursors, mainly NaNO$_2$ and MgB$_2$. This is the first report demonstrating composite film fireworks with new flammable composition using metal boride as a primary precursor, which can also be used in conventional fireworks fabrication, replacing the traditional fuel, mainly gunpowder. The film fireworks were free from charcoal, sulphur, metal powder and paper. Therefore, they substantially lower the odour and CO$_x$, NO$_x$ emissions and minimize the substantial trash generated when burned. Most importantly, film firework‘s minimum ignition temperature and exothermic decomposition temperature are much higher than the ambient temperature; hence are safe to handle.

    • Graphical Abstract

       

    • Author Affiliations

       

      VIJAYAKRISHNAN JEYAVANI1 2 RAJENDRA KUMAR3 2 PATTAYIL ALIAS JOY1 2 SHATABDI POREL MUKHERJEE1 2

      1. Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
      2. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
      3. Chemical Engineering and Process Development, CSIR-National Chemical Laboratory, Pune 411008, India

    • Dates

       
      Published
      7 September 2022
      Manuscript received
      17 January 2022
      Accepted
      15 May 2022
      Final version published online
      7 September 2022

    • Supplementary Material

       

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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