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Molecular Simulation Study on the Impact of a Cross-Linked Network Structure on the Tensile Mechanical Properties of PBT Substrates. [PDF]

Materials (Basel)
Huang R, Zhao K, Cao P, Cao L, Liao H, Tang X.   +5 more
europepmc   +1 more source

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Study on the Fracture Toughness of Hydroxyl-Terminated Polybutadiene Solid Rocket Propellant

Journal of Propulsion and Power, 2015
The present work is aimed at studying the fracture behavior of a hydroxyl-terminated polybutadiene solid rocket propellant. A fracture mechanics method based on the J integral was adopted to evaluate the material’s resistance against crack initiation and propagation with the auxiliary of a high-speed microscopic camera and multiple-sample test ...
Aiqun Li, Guangpan Zhou
exaly   +2 more sources

Structural Integrity of Aged Hydroxyl-Terminated Polybutadiene Solid Rocket Propellant

Journal of Propulsion and Power, 2018
The effect of aging time on the mechanical properties and fracture parameters determined via linear elastic fracture mechanics and elasto-plastic fracture mechanics approaches of an ammonium perchlorate hydroxyl-terminated polybutadiene solid propellant extracted from a stored in-service missile was evaluated.
J Rodríguez, Alicia Salazar
exaly   +3 more sources

Ferrocene grafted hydroxyl terminated polybutadiene: A binder for propellant with improved burn rate

Polymer, 2019
Abstract In this work, iron containing hydroxyl terminated polybutadiene (Fe-HTPB) based binder cum burn rate catalyst has been developed without altering the crucial physical properties of HTPB. Ferrocene, the source of Fe in the Fe-HTPB, has been grafted at the terminal carbons of HTPB to ensure no alternation in microstructure of HTPB which in ...
Tushar Jana, Billa Narasimha Rao
exaly   +2 more sources

Mechanical properties and influence mechanism of hydroxyl‐terminated polybutadiene propellant under confining pressure

Journal of Applied Polymer Science, 2023
AbstractTo better understand the mechanical properties and influence mechanism of hydroxyl‐terminated polybutadiene (HTPB) propellant under various confining pressures, the uniaxial tension tests with low to medium strain rate and various confining pressures were carried out.
Xiong Chen
exaly   +2 more sources

Investigation of Composite Propellant Based on Hydroxyl Terminated Polybutadiene–1-Chloro-2,4-Dinitrobenzene

Journal of Propulsion and Power, 2013
When attaching 1-chloro-2,4-dinitrobenzene in the hydroxyl terminated polybutadiene backbone, a new energetic prepolymer will be formed without destroying the physicochemical properties, fluidity, and microstructure of hydroxyl terminated polybutadiene.
Mohamed Abdullah
exaly   +2 more sources

Hydroxyl-Terminated Polybutadiene-Based Polyurethane Networks as Solid Propellant Binder-State of the Art

Journal of Propulsion and Power, 2015
A1 = mole fractions of hydroxyl groups on monofunctional moieties A2 = mole fractions of hydroxyl groups on difunctional moieties A3 = mole fractions of hydroxyl groups on trifunctional moieties a = empirical constant b = empirical constant C1 = intercept C2 = slope d = relative contents of difunctional moieties Eb = elongation at break ENCO = number ...
Raunija Tsk, V Sekkar
exaly   +2 more sources

Interfacial Fracture Toughness Between Hydroxyl-Terminated Polybutadiene Solid Rocket Propellant and Liner

Journal of Propulsion and Power, 2018
The present work is aimed at studying the interfacial debonding behavior between the hydroxyl-terminated polybutadiene solid propellant and liner.
Guangpan Zhou, Xiaochun Yin
exaly   +2 more sources

High-Pressure Combustion Characteristics of Hydroxyl-Terminated Polybutadiene Propellants

Journal of Propulsion and Power, 2023
Combustion mechanisms of propellants under high pressures are necessary to solve the problems of a high burning rate pressure exponent in high-pressure solid rocket motors. In this study, the combustion characteristics of hydroxyl-terminated polybutadiene (HTPB) propellants were investigated by analyzing the burning rate, the quenched surface, and the ...
Jinchao Han, Songqi Hu, Linlin Liu, Pengxiang He   +3 more
openaire   +1 more source