Publicado 6 números por año
ISSN Imprimir: 2150-766X
ISSN En Línea: 2150-7678
Indexed in
CHARACTERIZATION AND COMPARISON OF TWO HYDROXYL-TERMINATED POLYETHER PREPOLYMERS
SINOPSIS
Composite rocket propellants with improved insensitive munitions (IM) characteristics can be produced using cross-linked hydroxyl-terminated polyether (HTPE) binders and are potential alternatives to hydroxyl-terminated polybutadiene (HTPB) compositions. Some characteristics of propellants based on the HTPE binder have been presented, but there has been no report on the comprehensive chemical characterization of the prepolymer. In this paper we report a preliminary study on the characterization and comparison of two different HTPE prepolymers, one synthesized in our laboratory and the other obtained from a commercial source. Analyses were carried out on the two materials to determine molecular weight, molecular structure, glass transition temperature (Tg), melting temperature (Tm), impurities, and viscosity. These properties were determined using a range of techniques, including size-exclusion chromatography (SEC), nuclear magnetic resonance (NMR) spectroscopy, differential scanning calorimetry (DSC), gas chromatography-mass spectrometry (GC-MS), and Fourier transform infrared (FTIR) spectroscopy.
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Chen Keke, Yuan Shen, Wen XiaoMu, Sang Chao, Luo Yunjun, Effect of Mixed Isocyanate Curing Agents on the Performance of In Situ‐Prepared HTPE Binder Applied in Propellant, Propellants, Explosives, Pyrotechnics, 46, 3, 2021. Crossref
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Touidjine Sabri, Boulkadid Moulai Karim, Trache Djalal, Belkhiri Samir, Mezroua Abderrahmane, Fertassi Meriem Amina, Understanding the compatibility of Nitrocellulose with Polyester based Polyurethane binder, Journal of Energetic Materials, 2021. Crossref
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Wu Wei, Zhang Ximing, Jin Peng, Zhao Shuai, Luo Yunjun, Mechanism of PSAN effect on slow cook-off response of HTPE propellant, Journal of Energetic Materials, 2022. Crossref
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Wu Wei, Zhang Ximing, Ding Shanjun, Zhao Fengqi, Luo Yunjun, Effect of Block Structure of Copolyether Binder on Slow Cook‐Off Response of Composite Propellant, Propellants, Explosives, Pyrotechnics, 47, 5, 2022. Crossref
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Touidjine Sabri, Boulkadid Karim Moulai, Trache Djalal, Belkhiri Samir, Mezroua Abderrahmane, Preparation and Characterization of Polyurethane/Nitrocellulose Blends as Binder for Composite Solid Propellants, Propellants, Explosives, Pyrotechnics, 47, 1, 2022. Crossref
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Boulkadid Moulai Karim, Touidjine Sabri, Trache Djalal, Belkhiri Samir, Analytical Methods for the Assessment of Curing Kinetics of Polyurethane Binders for High-Energy Composites, Critical Reviews in Analytical Chemistry, 52, 5, 2022. Crossref