Sciact
  • EN
  • RU

HMX surface modification with polymers via sc-CO2 antisolvent process: A way to safe and easy-to-handle energetic materials Full article

Journal Chemical Engineering Journal
ISSN: 1873-3212 , E-ISSN: 1385-8947
Output data Year: 2022, Volume: 428, Article number : 131363, Pages count : DOI: 10.1016/j.cej.2021.131363
Authors Kosareva Ekaterina K. 1 , Zharkov Mikhail N. 2 , Meerov Dmitry B. 3 , Gainutdinov Radmir V. 4 , Fomenkov Igor V. 2 , Zlotin Sergei G. 2 , Pivkina Alla N. 3 , Kuchurov Ilya V. 2 , Muravyev Nikita V. 3
Affiliations
1 N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia.
2 N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
3 N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
4 A.V. Shubnikov Institute of Crystallography, Federal Scientific Research Center “Crystallography and Photonics”, Russian Academy of Sciences, 119333 Moscow, Russia

Abstract: The continuous need for energetic materials with increased performance and improved safety characteristics stimulates synthetic efforts as well as physical modification of existing compounds. The present study reports the fabrication of 1,3,5,7-tetranitro-1,3,5,7-tetrazoctane (HMX)-based composites with common commercial polymers, polymethyl acrylate (PMA), acrylonitrile butadiene styrene rubber (ABS), ethyl cellulose (EC), polylactide (PLA), and polyethylene terephthalate glycol (PETG). To precipitate the polymer on the HMX particles, the supercritical CO2-based anti-solvent method was employed. Surface state studies with various modes of scanning probe microscopy show that the polymers at less than 3 wt% content do not form a continuous layer but precipitate as globular islands. Nevertheless, the coating effectively absorbs the mechanical stress, resulting in a much lower sensitivity to impact and a considerable improvement of the HMX friction sensitivity. Specifically, for HMX@3PMA composite the impact and friction sensitivities are 54 J and 240 N, as compared to 7 J and 150 N for neat HMX. Additionally, the beneficial improvement of flowability is observed for the fabricated composites, and evidenced by small-scale flow cup studies. Importantly, the suggested procedure affords the safe and easy-to-handle energetic material powder containing only 1–3 wt% of the polymer additive.
Cite: Kosareva E.K. , Zharkov M.N. , Meerov D.B. , Gainutdinov R.V. , Fomenkov I.V. , Zlotin S.G. , Pivkina A.N. , Kuchurov I.V. , Muravyev N.V.
HMX surface modification with polymers via sc-CO2 antisolvent process: A way to safe and easy-to-handle energetic materials
Chemical Engineering Journal. 2022. V.428. 131363 . DOI: 10.1016/j.cej.2021.131363 WOS Scopus OpenAlex
Identifiers:
Web of science: WOS:000722894700002
Scopus: 2-s2.0-85111050033
OpenAlex: W3183400696
Citing:
DB Citing
OpenAlex 46
Scopus 37
Web of science 37
Altmetrics: