Autor: Nedkova, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An Investigation of the Extended Storage of Single-base Propellants
Autorzy:: Nedkova, M.
Shishkov, P.
Varadinova, L.
Glavchev, I.
Powiązania:: https://bibliotekanauki.pl/articles/358213.pdf
Data publikacji:: 2014
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:: ageing
single-base propellants
elemental analysis
FTIR
swelling
Opis:: An investigation of single-base propellants has been conducted. The ageing process during extended storage of single-base propellants (SBP) in nonheated military stores and a heated building has been investigated by elemental analysis. Two or three different absorbencies around the band at 1650 cm-1 were observed by FTIR spectroscopy. In this way, not only the denitration of the propellants was determined, but also cleavage of -O-C- bonds between the glycoside rings in the nitrocellulose macromolecules. The latter process was confirmed by the swelling of the SBP.
Źródło:: Central European Journal of Energetic Materials; 2014, 11, 4; 613-624
1733-7178
Pojawia się w:: Central European Journal of Energetic Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: UV-VIS and FTIR Investigations of Long-Term Aged Explosives. Part 2
Autorzy:: Shishkov, P.
Nedkova, M.
Atanasova, P.
Glavchev, I.
Powiązania:: https://bibliotekanauki.pl/articles/358669.pdf
Data publikacji:: 2011
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:: long-term ageing
TD-50
tetryl
UV-VIS
FTIR
H-bond
Opis:: Samples of long-term aged TD-50 and tetryl were investigated by UV-VIS and FTIR spectroscopy and bands of products of ageing were obtained. A complicated maximum of nitro groups at 1537 cm-1 in the FTIR spectra of long-term aged explosives was obtained, like in the IR spectra of long-term aged single-based propellants. Ageing process was confirmed by the presence of several maxima in UV-VIS and FTIR spectra of aged products and determination of several characteristics of the investigated explosives (shifts Δ ν, differences in absorbances ΔA, differences in values of Δh*1/2). Ageing was connected with decrease of H-bond formation on the base of decrease of content of oxygen and nitro groups in TD-50 and tetryl.
Źródło:: Central European Journal of Energetic Materials; 2011, 8, 4; 303-310
1733-7178
Pojawia się w:: Central European Journal of Energetic Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja