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    Wyświetlanie 1-7 z 7
    Tytuł:
    Application of the Energetic Complex [Cu(TNBI)(NH3)2(H2O)] in Heterogeneous Solid Rocket Propellants
    Autorzy:
    Bogusz, R.
    Rećko, J.
    Magnuszewska, P.
    Lewczuk, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/358549.pdf
    Data publikacji:
    2018
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    CuTNO
    RDX
    HTPB
    heterogeneous solid rocket propellant
    Opis:
    This paper presents results from the application of [Cu(TNBI)(NH3)2(H2O)] (CuTNO) to heterogeneous solid rocket propellants based on HTPB/AP, replacing RDX. A series of different compositions of solid heterogeneous rocket propellants based on HTPB and ammonium perchlorate, containing CuTNO or RDX, were prepared and investigated. The ballistic parameters of the examined propellants were determined by combustion in a laboratory rocket motor (LRM). The ballistic properties were evaluated in the pressure range 4-10 MPa and it was found that the linear burning rate at 10 MPa increased by more than 20% for the CuTNO containing propellant, compared to the RDX-based composition. By linear regression of the r = f(p) curves obtained, the burning laws for the investigated propellants were determined. It was found that the CuTNO additive increases the pressure coefficient by over 46%, compared to unmodified propellant. The determination of the sensitivities to friction and impact, the calorific value, hardness and decomposition temperature of the propellants obtained were also investigated.
    Źródło:
    Central European Journal of Energetic Materials; 2018, 15, 2; 391-402
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ageing Behaviour of HTPB Based Rocket Propellant Formulations
    Autorzy:
    Cerri, S.
    Bohn, M. A.
    Menke, K.
    Galfetti, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/358902.pdf
    Data publikacji:
    2009
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    solid rocket propellant
    HTPB
    nanoAl
    ageing
    mechanical properties
    Opis:
    The ageing of HTPB propellant formulations containing nanoAl is investigated. During natural ageing the material undergoes a series of slow physico-chemical degradation reactions. By using accelerated ageing conditions it is possible to simulate the material behaviour at different time-temperature conditions especially focused on the in-service conditions. The mechanical and ageing behaviour of aluminised solid rocket propellants were investigated in terms of uniaxial tensile strength, DMA measurements, impact and friction sensitivity tests, SEM analyses.
    Źródło:
    Central European Journal of Energetic Materials; 2009, 6, 2; 149-165
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of the Effect of Nitrated Hydroxyl-terminated Polybutadiene (NHTPB) on the Properties of Heterogeneous Rocket Propellants
    Autorzy:
    Florczak, B.
    Bogusz, R.
    Skupiński, W.
    Chmielarek, M.
    Dzik, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/358481.pdf
    Data publikacji:
    2015
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    NHTPB
    HTPB
    heterogeneous solid rocket propellant
    linear burning rate
    Opis:
    This paper presents results from research concerning the effect of nitrated hydroxyl-terminated polybutadiene (NHTPB), content up to 3%, on the physicochemical, physico-mechanical and ballistic properties of heterogeneous rocket propellants based on hydroxyl-terminated polybutadiene (HTPB), ammonium perchlorate (AP) and aluminium powder. The results of research on the rheological and thermal properties of the tested solid rocket propellants are also presented. These studies have shown that 2% rubber NHTPB, contained within a composite solid propellant, increases the energy and ballistic parameters of the propellant.
    Źródło:
    Central European Journal of Energetic Materials; 2015, 12, 4; 841-854
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Viscosity Testing of HTPB Rubber Based Pre-binders
    Autorzy:
    Florczak, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/358706.pdf
    Data publikacji:
    2014
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    pre-binder
    HTPB rubber
    viscosity
    heterogeneous solid rocket propellant
    Opis:
    This paper presents the test results of viscosity changes, versus time and temperature, for the HTPB rubber based pre-binders used in the manufacture of heterogeneous solid rocket propellants (HSRP). A Brookfield HADV-II+PRO viscometer with a small sample adapter (SSA) and SC4-18 spindle, including a TC-550SD water bath, was used for the tests. The components of the prebinders tested were: HTPB-K domestic liquid synthetic rubber, R45M rubber, dioctyl adipate as the plasticizer, diisocyanate curing agents (DDI, IPDI) and various additives: triethanolamine (TEA), iron compounds, lecithin, glycerine and a solution of oxalic acid in glycerine, and difunctional aziridine amide. As a result of these tests, it was found that the additives have an influence on the viscosity versus time dependence. Moreover, the influence of temperature on the viscosity changes with time were compared for HTPB-K domestic rubber and R45M rubber based pre-binders. The experimental equations describing these changes were also determined.
    Źródło:
    Central European Journal of Energetic Materials; 2014, 11, 4; 625-637
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Various Methods for the Determination of the Burning Rates of Solid Propellants : an Overview
    Autorzy:
    Gupta, G.
    Jawale, L.
    Mehilal, D.
    Bhattacharya, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/358413.pdf
    Data publikacji:
    2015
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    burning rate
    composite solid rocket propellant
    acoustic emission system
    erosive burning
    Opis:
    The burning rate of propellants plays a vital role among the parameters controlling the operation of solid rocket motors, therefore, it is crucial to precisely measure the burning rate in the successful design of a solid rocket motor. In the present review, a brief description of the methods for the determination of the burning rate of solid rocket propellants is presented. The effects of various parameters on the burning rate of solid propellants are discussed and reviewed. This review also assesses the merits and limitations of the existing different methods for the evaluation of the burning rate of solid rocket propellants.
    Źródło:
    Central European Journal of Energetic Materials; 2015, 12, 3; 593-620
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of the Internal Ballistic Properties of Solid Heterogeneous Rocket Propellants
    Autorzy:
    Florczak, B.
    Białek, M.
    Cholewiak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/358111.pdf
    Data publikacji:
    2014
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    solid heterogeneous rocket propellant (SHRP)
    internal ballistic properties
    laboratory rocket motor (LRM)
    Opis:
    This paper describes the determination of the internal ballistic properties of tubular, solid heterogeneous rocket propellant (SHRP) charges based on hydroxyl terminated polybutadiene (HTPB) binder. The SHRP charges were screened (inhibited) on their external cylindrical surfaces and inserted into a laboratory rocket motor (LRM). These determinations originated from theoretical considerations and were developed using experimental measurements from static firings of SHRP charges in an LRM. Due to the design of the SHRP charge, its burning process began from the inner cylindrical surface and from both ends of the ring surfaces. The initial temperatures (Tp) of the SHRP charges tested were 233, 288 or 323 K in single static firing runs. On the basis of the pressure (p) of the combustion products of the SHRP vs. time (t) of the LRM operation, the dependence of the burning rates (rb) of the SHRP charges on (p) and on (Tp), and also the (rb) sensitivity to changes in (p) and (Tp), were determined by means of the indirect method.
    Źródło:
    Central European Journal of Energetic Materials; 2014, 11, 4; 589-601
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Studies of the Influence of Nano Iron(III) Oxide on Selected Properties of Solid Heterogeneous Propellants Based on HTPB
    Autorzy:
    Bogusz, R.
    Magnuszewska, P.
    Florczak, B.
    Maranda, A.
    Drożdżewska, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/358189.pdf
    Data publikacji:
    2016
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    combustion rate modifier
    nano iron(III) oxide
    solid heterogeneous rocket propellant
    HTPB
    LRM
    Opis:
    This paper presents the results of investigations into the use of 56 nm nano iron(III) oxide as a combustion rate modifier in a solid heterogeneous rocket propellant (SHRP). A series of solid heterogeneous rocket propellants based on HTPB and ammonium perchlorate with different nano iron(III) oxide contents in the propellant composition were prepared and investigated. The ballistic parameters of the examined propellants were determined by combustion in a laboratory rocket motor (LRM). The ballistic properties were evaluated in the pressure range 5-10 MPa. It was found that the linear burning rate at 7 MPa was increased by 15% for 1% nano iron(III) oxide content in comparison to 0.2% content. Determination of the sensitivity to friction and impact, the calorific value, hardness and decomposition temperature of the derived propellants were also investigated.
    Źródło:
    Central European Journal of Energetic Materials; 2016, 13, 4; 1051-1063
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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