Effect of polar plasticizers on the characteristics of selected cyclic nitramines

• Autorzy: Elbeih A. , Zeman S. , Pachman J.
• Języki publikacji: EN

Abstrakty

EN

Dioctyl sebacate (DOS) is a plasticizer used with oily material for the softening of polyisobutylene binder (PIB) to form a polymeric matrix. This matrix was used for the preparation of various plastic explosives. The following energetic cyclic nitramines were used as explosive fillers: BCHMX (cis-1,3,4,6- tetranitrooctahydroimidazo [4,5 d]imidazole), ε-HNIW (ε-2,4,6,8,10,12- hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane), RDX (1,3,5-trinitro-1,3,5- triazacyclohexane), and HMX (1,3,5,7-tetranitro-1,3,5,7-tetrazacyclooctane). For comparison, Fluorel binder was used for the preparation of several plastic bonded explosives (PBXs) based on the same selected explosives. Impact and friction sensitivities of the prepared samples and the pure explosive fillers were measured. The thermal stability was studied using differential thermal analysis (DTA). High performance liquid chromatography (HPLC) was used to detect the presence of BCHMX dissolved in dioctyl sebacate (DOS). The heat of combustion of the prepared samples and of the pure explosive fillers was measured using a bomb calorimetry. The results show that PIB softened by plasticizer (DOS) has a greater positive effect on decreasing the impact sensitivity of the studied pure explosives than Fluorel binder. On the other hand, the plasticizer acts as a solvent for the energetic materials and decreases the decomposition temperature of these plastic explosives.

Słowa kluczowe

EN

energetic materials; polymers; sensitivity; combustion; thermal stability

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2013
• Tom: Vol. 10, no. 3
• Strony: 339--349
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Elbeih A.

• Military Technical College, Kobry Elkobbah, Cairo, Egypt

autor

Zeman S.

• Institute of Energetic Materials, Faculty of Chemical Technology, University of Pardubice, CZ-532 10 Pardubice, Czech Republic

autor

Pachman J.

• Institute of Energetic Materials, Faculty of Chemical Technology, University of Pardubice, CZ-532 10 Pardubice, Czech Republic

Bibliografia

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