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Acta Armamentarii ›› 2021, Vol. 42 ›› Issue (6): 1215-1222.doi: 10.3969/j.issn.1000-1093.2021.06.011

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Preparation of Porous Polyacrylate and Its Catalysis on Thermal Decomposition of Ammonium Perchlorate

HUO Junda, YAN Zhenzhan, LU Yuewen, HAN Jimin, YANG Li   

  1. (State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China)
  • Online:2021-07-19

Abstract: The metal particles are introduced into the polymer chain by the sol-gel method. The porous metal-containing polymer material, which is obtained by freeze-drying, has the features of fluxion, large specific surface area and porosity. These features not only restrain the agglomeration of nano-metal catalyzer, but also provide sufficient catalytic active sites. Two kinds of porous metal-containing polymers (PAA-Cu and PAA-Pb) were prepared. Scanning electron microscope, transmission electron microscopy, infrared spectroscopy, and Brunauer-Emmett-Teller method are used to characterize PAA-Cu and PAA-Pb. TG-IR-GC-MS combination is used to analyze the catalysis of PAA-Cu and PAA-Pb on the thermal decomposition of ammonium perchlorate (AP). The results indicate that the decomposition peak temperature of AP is decreased to 143.1 ℃ under the catalysis of PAA-Cu and 73.7 ℃ under the catalysis of PAA-Pb. Porous PAA-Cu which is of better catalysis compared with PAA-Pb was calcined in this paper. Cu and Cu2O are produced by in-situ decomposition, while the increasing porosity promotes the exposure of catalytic active substances. The new features obtained by calcination make for the catalysis on thermal decomposition of AP.

Key words: copperpolyacrylate, leadpolyacrylate, ammoniumperchlorate, porousmetal-containingpolymer, thermaldecomposition, catalyst

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