Results 161 to 170 of about 4,212 (194)

Thermal decomposition of HTPB/AP and HTPB/HMX mixtures with low content of oxidizer

Journal of Thermal Analysis and Calorimetry, 2014
In this paper, hydroxyl-terminated polybutadiene (HTPB)/ammonium perchlorate (AP) and HTPB/cyclotetramethylene tetranitramine (HMX) mixtures with low content of oxidizer were prepared, and the thermal decomposition process of these mixtures was investigated with TG-FTIR and Raman spectrum.
Ying-hong Wang, Lin-lin Liu, Lian-yi Xiao, Ze-xu Wang   +3 more
openaire   +1 more source

Structure‐property relationship of HTPB‐based propellants. I. Effect of hydroxyl value of HTPB resin

Journal of Applied Polymer Science, 1993
AbstractComposite propellants based on hydroxyl‐terminated polybutadience (HTPB) resin are the most common contemporary solid propellants for launch vehicle and missile applications. A series of HTPB resins, manufactured by free‐radical polymerisation using a peroxide initiator, with varying molecular weights and hydroxyl values, was used in propellant
R. Manjari, V. C. Joseph, L. P. Pandureng, T. Sriram   +3 more
openaire   +1 more source

Combustion of AP/HTPB laminate propellants

37th Joint Propulsion Conference and Exhibit, 2001
The combustion of AP/HTPB laminate propellants has been investigated experimentally and theoretically. The experiments used simultaneous UV emission and transmission imaging to obtain information about the flame structure and the burning surface profile.
M. Brewster, G. Knott, B. Chorpening
openaire   +1 more source

HTPB propellants for large booster applications

7th Propulsion Joint Specialist Conference, 1971
Solid propellants based on low cost hydroxyl terminated polybutadiene binders meeting burning rate, mechanical properties and processing requirements for large booster ...
P. SMITH, H. BANKAITIS
openaire   +1 more source

Oscillatory combustion of fine-AP/HTPB propellants

36th AIAA Aerospace Sciences Meeting and Exhibit, 1998
The steady and oscillatory combustion of wide distribution AP/HTPB composite propellants containing coarse AP and fuel-rich, fine-AP/HTPB pocket regions is being investigated experimentally and theoretically. These propellants are of special interest because they are similar to many wide distribution bi-modal tailorable plateau propellants.
S. Hickman, M. Brewster
openaire   +1 more source

Flame structure of ADN/HTPB composite propellants

Combustion and Flame, 2001
Abstract Visual flame characteristics, burning rates, and final flame temperatures for propellants based on ammonium dinitramide (ADN) and hydroxyl-terminated polybutadiene (HTPB) at different HTPB concentrations (3–20%) have been studied at pressures of 0.05 to 0.6 MPa.
Oleg P Korobeinichev, Alexander A Paletsky   +1 more
openaire   +1 more source

Solid Propellants based on ADN and HTPB

47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2011
The aim of this work was to perform an initial evaluation of ammonium dinitramide, ADN, as substitute for ammonium perchlorate, AP, in solid rocket propellants for large space launch boosters. This paper includes performance evaluation, curing and compatibility assessments, propellant formulation and determination of ballistic properties.
John de Flon, Sten Andreasson, Mattias Liljedahl, Carl Oscarson, Marita Wanhatalo, Niklas Wingborg   +5 more
openaire   +1 more source

HTPB-based polyurethanes. II. SINs with PMMA

Journal of Polymer Science Part B: Polymer Physics, 2000
Simultaneous interpenetrating networks from poly(methyl methacrylate-co-ethyleneglycol dimethacrylate) (PA) and a hydroxyl-terminated polybutadiene-based polyurethane (PU) were prepared with various hard-segment contents (X) in the PU and different ratios (PU/PA) between the components. The level of the reinforcement, the mechanism of molecular failure,
S. H. Wang, S. Zawadzki, L. Akcelrud
openaire   +1 more source

Aluminum agglomeration of AP/HTPB composite propellant

Acta Astronautica, 2019
Abstract Aluminum (Al) powder agglomeration is one of the main reasons for the degradation in the performance of aluminized solid propellant rockets and so, understanding the combustion behavior of aluminum in solid propellants is of great importance.
Jifei Yuan, Jianzhong Liu, Yunan Zhou, Jianru Wang, Tuanwei Xv   +4 more
openaire   +1 more source

Thermal stability and kinetic of decomposition of nitrated HTPB

Journal of Hazardous Materials, 2009
Nitrated HTPB (NHTPB) is a potential energetic binder to replace the conventional inert binder, HTPB, for the composite solid propellants and plastic bonded explosives (PBXs). The thermal stability of the NHTPB sample with 10% double bonds converted to dinitrate ester group (10% NHTPB) was evaluated by high-pressure differential scanning calorimeter ...
Qingfa, Wang, Li, Wang, Xiangwen, Zhang, Zhentao, Mi   +3 more
openaire   +2 more sources