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国际能源材料和化学驱动期刊

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ISSN 打印: 2150-766X

ISSN 在线: 2150-7678

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.7 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 0.7 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00016 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.18 SJR: 0.313 SNIP: 0.6 CiteScore™:: 1.6 H-Index: 16

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SYNTHESIS AND CHARACTERIZATION OF A HYDROXY TERMINATED POLYETHER (HTPE) COPOLYMER FOR USE AS A BINDER IN COMPOSITE ROCKET PROPELLANTS

卷 6, 册 3, 2007, pp. 289-306
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v6.i3.20
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摘要

A new family of composite rocket propellants with improved insensitive munitions (IM) characteristics has recently been developed. The propellants are based on cross-linked Hydroxy Terminated Polyether (HTPE) binders and are being used as alternatives to Hydroxy Terminated Polybutadiene (HTPB) compositions. HTPE propellants have similar mechanical properties to HTPB propellants, but their main advantage is that they give a less severe response in 'slow cook-off' tests for IM compliance. In this paper, we report a preliminary study aimed at understanding the behavior of HTPE propellants, during which we have synthesized and characterized an HTPE pre-polymer. The synthesis of a random copolymer of ethylene oxide (EO) and tetrahydrofuran (THF) was carried out through cationic bulk polymerization under sub-zero temperature conditions using ethylene glycol (EG) as a proton reservoir and tetra fluoroboric acid diethyl ether complex as a catalyst. Quantities of each reagent were changed over a series of experiments in order to obtain copolymers with different ratios of EO/THF groups and different molecular weights, and thus different chemical, physical, and mechanical properties. In order to characterize the HTPE copolymers, analyses were carried out to determine molecular weight, molecular structure, glass transition temperature (Tg), melting temperature (Tm), impurities, and density. These properties were determined by 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 Infra-red (FTIR) Spectroscopy. Similar analyses were performed on a sample of an HTPB pre-polymer and the results were compared with those obtained for the HTPE copolymers.

对本文的引用
  1. Ou Yapeng, Sun Yalun, Guo Xueyong, Jiao Qingjie, Investigation on the thermal decomposition of hydroxyl terminated polyether based polyurethanes with inert and energetic plasticizers by DSC-TG-MS-FTIR, Journal of Analytical and Applied Pyrolysis, 132, 2018. Crossref

  2. 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

  3. 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

  4. 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

  5. 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

  6. Wu Wei, Jin Peng, Zhao Shuai, Luo Yunjun, Mechanism of AP effect on slow cook-off response of HTPE propellant, Thermochimica Acta, 715, 2022. Crossref

  7. 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

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