Premium
Polypyrrole material for the electrostatic discharge sensitivity mitigation of Al/SnO 2 energetic composites
Author(s) -
Gibot Pierre,
Goetz Virginie
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50752
Subject(s) - polypyrrole , materials science , composite material , doping , conductive polymer , scanning electron microscope , composite number , tin oxide , fourier transform infrared spectroscopy , exothermic reaction , chemical engineering , polymer , chemistry , optoelectronics , polymerization , organic chemistry , engineering
Nanothermites are composite energetic materials made of fuel and oxidizer nanoparticles characterized by impressive exothermic reactions (highly flame temperatures and impressive heat combustion releases). However, nanothermites suffer from their high electrostatic discharge (ESD) sensitivity that may be at the origin of accidental ignitions during handling. The present study deals with the use of doped‐polypyrrole conducting polymer in aluminum/tin (IV) oxide energetic formulation (Al/SnO 2 ). X‐ray diffraction, Fourier transforms infrared spectroscopy, scanning electron microscopy, conductivity measurements, sensitivities and combustion tests were implemented to characterize the polypyrrole‐doped Al/SnO 2 energetic composite. The results revealed a significant gradual ESD desensitization of the nanothermite (<0.14 mJ to 246.40 mJ) as a function of the doped‐polypyrrole amount (0 to 15 wt%). The reactive properties of the polypyrrole‐enriched Al/SnO 2 nanothermite were verified and an acceptable reactive behavior was claimed. The successful adding of doped‐polypyrrole conducting polymer within energetic nanocomposites is reported for the first time.