Open AccessEnhancing the propulsion characteristics of rockets by adding the energetic Nitro-hydroxyl-terminated polybutadiene (NHTPB) in the propellant compositions
Author(s) -
Ahmed Azazy,
Ahmed Saleh,
Waleed F. Aly,
Ahmed Elbeih,
Ahmed K. Hussein,
T Elshenawy,
Mahmoud Abdelhafiz,
Tamer Z. Wafy,
M.M. Zaki,
Hesham S. Ahmed
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1172/1/012032
Subject(s) - propellant , specific impulse , polybutadiene , hydroxyl terminated polybutadiene , materials science , rocket propellant , exothermic reaction , nitro , energetic material , impulse (physics) , polymer chemistry , composite material , chemistry , organic chemistry , polymer , physics , explosive material , alkyl , quantum mechanics , copolymer
Replacing the inert binder by an energetic one could increase the specific impulse of the propellants and enhance the propulsion characteristics of rockets. In this study, Nitro-bhydroxyl-terminated polybutadiene (NHTPB) was prepared by a simple method. The prepared NHTPB in addition to HTPB binder were characterized. FTIR spectra of both HTBP and NHTPB was determined and compared. The thermal behavior of the prepared NHTPB was studied using DSC technique at heating rate 5 degree/min. A composite propellant based on AP/NHTPB was prepared and the specific impulse was measured for AP/NHTPB using two inch motor. It was concluded that the energetic nitro-hydroxyl-terminated polybutadiene has a clear max. exothermic peak at 203 °C with heat release of 323 J/g. By comparing the results, the prepared propellant AP/NHTPB has specific impulse higher than the traditional AP/HTPB propellant. NHTPB is a promising binder for the application of rocket propellants and needs more tests for its approval.