Results 91 to 100 of about 988 (214)

Catalytic Nanoparticle Additives in the Combustion of AP/HTPB Composite Solid Propellant [PDF]

, 2010
Presented in this thesis is a study of the effects of nano-sized particles used as a catalytic additive in composite solid propellant. This study was done with titanium oxide (titania)-based particles, but much of the findings and theory are applicable ...
Kreitz, Kevin R.
core  

TG studies of a composite solid rocket propellant based on HTPB-binder

, 2004
Thermal decomposition kinetics of solid rocket propellants based on hydroxyl-terminated polybutadiene-HTPB binder was studied by applying the Arrhenius and Flynn-Wall-Ozawa's methods. The thermal decomposition data of the propellant samples were analyzed
Ionashiro, Massao [UNESP], Iha, K., Lima, JES, Ionashiro, Massao, Frutuoso, A. G., Matos, JR, Rocco, JAFF, Suarez-Iha, MEV   +7 more
core   +1 more source

Effect of Nano Cr2O3 in HTPB/AP/Al Based Composite Propellant Formulations

, 2016
Different compositions have been prepared by incorporating nano sized chromium oxide from 0.25 % to 1 % in HTPB/AP/Al based composite propellant formulation having 86% of solid loading and studied its effect on viscosity build-up, thermal, mechanical and
Jawale, Lalita, Kshirsagar, Dhirendra, Kurva, Ramesh, Khire, Vrushali, Dhabbe, Kashinath, Maurya, Mehilal, Singh, Sudhir   +6 more
core   +2 more sources

Experimental study on the porosity of HTPB propellant: characterization of damage evolution

Journal of Materials Research and Technology
To characterize the damage evolution mechanism of HTPB composite solid propellant, the porosity as well as the sphericity will be analyzed using micro-CT. Under normal temperature and pressure, the damage mechanisms include voids, ''dewetting'' damage at
Huihui Zhang, Ruyan Zhao, Zhibin Shen, Haiyang Li, Dapeng Zhang, Kuangwei Deng   +5 more
doaj   +1 more source

Mechanical properties of HTPB composite propellants in the initial period of service life [PDF]

Scientific Technical Review, 2014
Uniaxial tensile tests of different composite solid rocket propellant compositions, based on hydroxyl-terminated polybutadiene (HTPB), have shown that mechanical properties extensively change after curing, up to 100% of their initial values, during the ...
Gligorijević Nikola, Živković Saša, Subotić Sredoje, Pavković Bojan, Nikolić Momčilo, Kozomara Stevan, Rodić Vesna   +6 more
doaj  

RETIKULASI HIDROXYL TERMINATED POLUBUTADIENE (HTPB) MANDIRI DENGAN TOLUENE DIISOCIANATE (TDI) MEMBENTUK POLIURETAN SEBAGAI FUEL BINDER PROPELAN

, 2016
LAPAN has successfully made HTPB independently. The next stage is to manufacture fuel-binder by reacting the HTPB with TDI. Stages of this test to get the gel time and the hardness that can qualify as a propellant binder.
Geni Rosita
core   +1 more source

Studies of rheological properties of suspension of heterogeneous rocket propellant based on HTPB rubber

, 2015
W pracy przedstawiono wyniki z badań właściwości reologicznych heterogenicznego paliwa rakietowego na bazie kauczuku butadienowego z grupami hydroksylowymi (HTPB – R45M), chloranie(VII) amonu i pyle aluminiowym zawierającymi także dodatki, tj ...
Florczak, B., Bednarczyk, E., Maranda, A.   +2 more
core  

The Synergistic Effect of Fe-Based MOFs and HTPB on AP Decomposition in Solid Propellants

Solids
Many factors and their mutual interaction between catalysts and AP/HTPB composite solid propellant induce the complexity in the combustion. Among them, we prepared two Fe-based MOFs as catalysts and investigated their catalytic effects and mechanism on ...
Qian Guo, Jie Wang, Yanchun Li, Ramón Artiaga   +3 more
doaj   +1 more source

Studies on the Effect of Nano-MnO2 in HTPB-based Composite Propellant Formulations

, 2017
Various propellant compositions were prepared incorporating fully characterized nano-sized manganese dioxide, from 0.25 wt.% to 1.0 wt.%, in HTPB/AP/Al-based composite propellant formulations having 86 wt.% of solid loading, and its effects on the ...
Bhandarkar, S., Mehilal, -, Kshirsagar, D. R., Jain, S., Vemuri, M.   +4 more
core   +1 more source

Ultrasonically Accelerated Nitration of Hydroxyl-Terminated Polybutadiene: Process Efficiency and Product Characterization

Eng
Hydroxyl-terminated polybutadiene (HTPB) is widely studied and the most used prepolymer for the binder system of composite solid propellants. A suitable functionalization of HTPB with energetic groups greatly improves the performance of the propellant ...
Ventsislav Bakov, Spaska Yaneva, Nadezhda Rangelova, Milko Berner, Damyan Ganchev, Nikolai Georgiev   +5 more
doaj   +1 more source