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Biofunctionalization of HMX with Peptides via Polydopamine Crosslinking for Assembling an HMX@Al@CuO Nanoenergetic Composite. | LitMetric

AI Article Synopsis

  • A new method was created to produce a hybrid explosive-nanothermite energetic composite using a peptide and a technique inspired by mussel adhesion.
  • The process involves applying polydopamine (PDA) onto the explosive HMX, which retains its reactivity and allows for the attachment of aluminum and copper oxide nanoparticles through specific interactions.
  • The enhanced composite showed superior energy release characteristics, exhibiting a 41% reduction in activation energy compared to a traditional mixture of HMX, aluminum, and copper oxide.

Article Abstract

Biological approaches for the synthesis of a hybrid explosive-nanothermite energetic composite have attracted greater scientific attention because of their advantages, including their moderate reactions and the absence of secondary pollution. In this study, a simple technique was developed to fabricate a hybrid explosive-nanothermite energetic composite based on a peptide and a mussel-inspired surface modification. Polydopamine (PDA) was easily imprinted onto the HMX, where it maintained its reactivity and was capable of reacting with a specific peptide used to introduce Al and CuO NPs to the surface of the HMX via specific recognition. The hybrid explosive-nanothermite energetic composites were characterized using differential scanning calorimetry (TG-DSC), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy(XPS), and a fluorescence microscope. A thermal analysis was utilized to investigate the energy-release properties of the materials. The HMX@Al@CuO, which benefitted from an enhanced interfacial contact in comparison with the physically mixed sample (HMX-Al-CuO), demonstrated a 41% lower HMX activation energy.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10301552PMC
http://dx.doi.org/10.3390/nano13121837DOI Listing

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