Premium
Facile Preparation of AP/Cu(OH) 2 Core‐Shell Nanocomposites and Its Thermal Decomposition Behavior
Author(s) -
Hao Gazi,
Liu Jie,
Liu Qiaoe,
Xiao Lei,
Ke Xiang,
Gao Han,
Du Ping,
Jiang Wei,
Zhao Fengqi,
Gao Hongxu
Publication year - 2017
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201600209
Subject(s) - thermal decomposition , ammonium perchlorate , thermogravimetric analysis , materials science , nanocomposite , scanning electron microscope , coprecipitation , differential scanning calorimetry , transmission electron microscopy , nuclear chemistry , analytical chemistry (journal) , decomposition , thermogravimetry , isothermal process , composite number , chemical engineering , composite material , chemistry , nanotechnology , organic chemistry , physics , engineering , thermodynamics
Ammonium perchlorate (AP)/Cu(OH) 2 core‐shell nanocomposites were successfully synthesized using a facile ultrasonic assisted‐coprecipitation synthesis route. The obtained AP/Cu(OH) 2 nanocomposites were characterized by means of powder X‐ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Its thermal decomposition was studied under the non‐isothermal conditions with thermogravimetric analysis and differential scanning calorimeter (TG‐DSC) techniques. In this procedure, SEM and TEM observations revealed that Cu(OH) 2 nanoparticles with an average size of 10–15 nm were uniformly deposited on the surface of AP particles. Detailed characterization results indicated that the existence of evidence of Cu(OH) 2 . As expected, it was found that the AP/Cu(OH) 2 nanocomposites with mass fraction of 2 wt % Cu(OH) 2 remarkably decreased the peak temperature of high temperature decomposition of AP by 80.2 °C from approximately 441.3 °C to 361.1 °C. As compared with pure AP, the AP/Cu(OH) 2 nanocomposites show lower impact and friction sensitivity. These results may lead to potential applications of the AP/Cu(OH) 2 nanocomposites in the composite solid propellants for accelerating the thermal decomposition of AP.