Mechanical Properties of HTPE/Bu-NENA Binder and the Kinetics of Bu-NENA Evaporation

• Autorzy: Yuan Shen , Luo Yunjun

Identyfikatory

DOI

10.22211/cejem/119352

• Języki publikacji: EN

Abstrakty

EN

The correlation between the mechanical properties of hydroxyl-terminated polyether (HTPE)/N-butyl-N-(2-nitroxyethyl)nitramine (Bu-NENA) binders with different plasticization ratios (pl/po), varied from 0.9 to 1.5, have been studied. The very early stage of evaporation of Bu-NENA from the HTPE/Bu-NENA binder, with a pl/po ratio of 1.2, has been investigated. The results revealed that the pl/po ratio has strong influences on the mechanical properties. When the pl/po ratio was 1.2, the mechanical properties of the HTPE/Bu-NENA binder were satisfactory, the maximum tensile strength and the elongation at break being 2.39 MPa and 93.27%, respectively. The evaporation rate constant of Bu-NENA from HTPE/Bu-NENA binder with a pl/po ratio of 1.2 increased from 0.31·10–5 to 2.32·10–5 s–1 as the temperature was increased from 50 to 90 °C. The value of the activation energy of evaporation was 51.47 kJ/mol and its pre-exponential factor was 6.14·102 s–1.

Słowa kluczowe

EN

hydroxyl-terminated polyether; HTPE; N-butyl-N-(2-nitroxyethyl)nitramine; BuNENA; mechanical properties; cross-linking network structure; evaporation

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2020
• Tom: Vol. 17, no. 1
• Strony: 119--141
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Yuan Shen

• School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
• Key Laboratory for Ministry of Education of High Energy Density Materials, Beijing Institute of Technology, Beijing 100081, China

autor

Luo Yunjun

• School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
• Key Laboratory for Ministry of Education of High Energy Density Materials, Beijing Institute of Technology, Beijing 100081, China

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).