Results 1 to 10 of about 370 (179)

Research on curing reaction kinetics and curing process of hydroxy-terminated polybutadiene (HTPB) propellants [PDF]

Scientific Reports
Hydroxyl-terminated polybutadiene (HTPB) propellants are high-performance solid propellants widely used in aerospace and military applications. By combining experimental and theoretical approaches, the curing process was analyzed using differential ...
Zhiming Guo, Yiliang Wang, Michele Chiumenti, Yuheng Wu, Shaocong Zhen, Hanwen Liu, Riccardo Rossi, Xiaolong Fu   +7 more
doaj   +2 more sources

Effect of fast-burning compound ACP and catalyst on the combustion performance of Al/Mg-based fuel-rich HTPB propellants

FirePhysChem, 2022
In order to solve the problem of weak injection of fuel-rich propellant and to enhance its burning rate, the combustion behaviors of Al/Mg-based fuel-rich HTPB propellants with 40wt% metal content were studied with and without the addition of fast ...
Rongjie Yang, Weiqiang Tang
exaly   +3 more sources

Solid propellants: AP/HTPB composite propellants

Arabian Journal of Chemistry, 2019
AbstractIn this article we mainly discuss about AP/HTPB composite solid propellants. Classification, components, properties, burning rate and ignition behavior of propellants are mentioned here. Combustion of AP monopropellant, HTPB and AP/HTPB is discussed in detail.
Pragnesh Dave, Shalini Chaturvedi
exaly   +2 more sources

First applications of ultrasound technology in solid rocket propellant combustion promotion [PDF]

Ultrasonics Sonochemistry
The regulation of propellant combustion using ultrasonic waves is proposed. Under ultrasonic frequencies of 25–40 kHz, we systematically examined the combustion characteristics of Al particles, ammonium perchlorate (AP)/hydroxyl-terminated polybutadiene (
Zhan Wen, Heng Jing, Feng Hao, Yuheng Wang, Bicheng Kuang, Peijin Liu, Wen Ao   +6 more
doaj   +2 more sources

Study on Creep Mechanical Properties of HTPB Solid Propellant. [PDF]

Materials (Basel)
Solid rocket propellants based on hydroxyl-terminated polybutadiene (HTPB), in which HTPB acts as the polymeric binder and fuel matrix, are widely used in aerospace propulsion. During storage, transport, and service, these composite energetic materials are exposed to sustained mechanical loads as well as environmental variations, which may induce time ...
Jin L, Jia S, Zhang Z, An Z, Lu Z.
europepmc   +2 more sources

Effect of Fluoroalcohol Chain Extension Modified HTPB Binder on the Combustion Performance of Aluminized Propellants

Crystals
To 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 ...
Xueyong Guo, Guo Xueyong
exaly   +3 more sources

Combustion and mechanical properties enhancement strategy based on stearic acid surface activated boron powders [PDF]

Scientific Reports
Boric acid and other impurities on the surface of boron (B) particles can interact with hydroxyl-terminated polybutadiene (HTPB), weakening the mechanical properties and energy release efficiency of boron-based solid rocket propellants.
Jiaxin Lu, Chong Chen, Bobo Zhang, Kang Niu, Fei Xiao, Taixin Liang   +5 more
doaj   +2 more sources

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 ...
Yanchun Li, Ramon Artiaga
exaly   +3 more sources

Amine-AlH₃ Adducts as Energetic Materials for a New Generation of Solid Fuels. [PDF]

Chemistry
New amine‐AlH₃ adducts offer a more environmentally friendly, high‐energy alternative to conventional rocket propellants, and exhibit ultra‐fast ignition. They can be synthesized by mechanochemical method under hydrogen pressure starting from aluminum metal directly or by wet chemical processes with AlH3.
Liu X, Ortmeyer J, Bodach A, Petersen H, Felderhoff M.   +4 more
europepmc   +2 more sources

Preliminary Study on Characteristics of NC/HTPB-Based High-Energy Gun Propellants

ChemEngineering, 2022
This study mainly explored the characteristics of NC/HTPB-based high-energy gun propellants with RDX, CL-20 or TKX-50 by experimental method. Three series of test samples were prepared referring to the formulation of M1 single-base gun propellant (M1 SBP)
Yi-Hsien Lin, Tsung-Mao Yang, Jin-Shuh Li, Kai-Tai Lu, Tsao-Fa Yeh   +4 more
doaj   +1 more source