Results 11 to 20 of about 12,705 (201)
CrystalsTo enhance both the mechanical properties of hydroxyl-terminated polybutadiene (HTPB) binder and the combustion efficiency of aluminized propellants, 2,2,3,3,4,4,5,5-octafluoro-1,6-hexanediol (OFHD) was employed as a chain extender to impart mechanical ...
Yanjie Huang +5 more
doaj +2 more sources
Hydroxy-terminated polyether binders for composite rocket propellants [PDF]
, 2007 Propellants based on cross-linked Hydroxy Terminated PolyEther (HTPE) binders are being used as alternatives to Hydroxy Terminated PolyButadiene (HTPB) compositions. HTPE propellants have similar mechanical properties to HTPB propellants but they give
Caro, R.
core +7 more sources
Low-Temperature Mesoscopic Mechanical Damage of AP/Al/HTPB Composite Propellants
International Journal of Aerospace EngineeringTo investigate the mechanical damage of solid propellants under low-temperature conditions, an equivalent modeling approach was employed to establish a mesoscopic particle–embedded model of the hydroxyl-terminated polybutadiene (HTPB) propellant ...
Tianxiao Zhang +4 more
doaj +2 more sources
Numerical Conversion Method for the Dynamic Storage Modulus and Relaxation Modulus of Hydroxy-Terminated Polybutadiene (HTPB) Propellants. [PDF]
Polymers (Basel), 2022 As a typical viscoelastic material, solid propellants have a large difference in mechanical properties under static and dynamic loading. This variability is manifested in the difference in values of the relaxation modulus and dynamic modulus, which serve
Ji Y, Cao L, Li Z, Chen G, Cao P, Liu T.
europepmc +2 more sources
The Stability of novel energetic materials and associated propellants [PDF]
, 2010 A study into the degradation of crystalline Hydrazinium Nitroformate (HNF) in isolation has been carried out alongside studies into HNF / polyNIMMO propellant degradation.
Wagstaff, D C.
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Anais da Academia Brasileira de Ciências, 2021 Hydroxyl-terminated polybutadiene (HTPB) is widely used in the formulations of solid propellants used in rocket motors. Furthermore, in general, chain extenders and short chain diols, such as 1,4-butanediol and 1,2-propanediol, can also be used in ...
BRUNO C.C. DA CUNHA +2 more
doaj +1 more source
A whole life assessment of extruded double base propellants
, 2013 © Cranfield UniversityThe manufacturing process for solventless extruded double base propellants involves a number of rolling and reworking stages. Throughout these processes a decrease in weight average molecular weight was observed, this was attributed
Tucker, J
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Development of a Solid, Low-Smoke Rocket Propellant – Smoke Generation Intensity Tests Using a Laser and Photodiode Setup [PDF]
Problemy Mechatroniki, 2023 The work completed and discussed in this paper was to determine the level of smoke generation intensity in a selection of solid rocket propellants developed to minimise the level of generated smoke.
Przemysław WOŹNIAK (przemyslaw.wozniak.dokt@pw.edu.pl) +10 more
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Journal of Materials Research and Technology, 2023 Composite propellants are used to fabricate solid motors for space vehicles. The fundamental factor that affects motor safety is the structural damage in the propellant owing to slow heating in an abnormal storage or service environment.
Jianxin Nie +8 more
doaj +1 more source
International Journal of Aerospace Engineering, 2012 Ammonium-nitrate-(AN-) based composite propellants prepared with a hydroxyl-terminated polybutadiene (HTPB)/polytetrahydrofuran (PTHF) blend binder have unique thermal decomposition characteristics.
Makoto Kohga +2 more
doaj +1 more source