Results 181 to 190 of about 4,415 (229)

Effects of HTPB with Different Molecular Weight on Mechanical Properties of HTPB/TDI System

Advanced Materials Research, 2013
t is found that the molecular weight of Hydroxy-terminated polybutadiene (HTPB) influences curing behaviors of HTPB/2,4-toluene diisocyanate (TDI) system and the mechanical properties of PBXs. Effects of the molecular weight of HTPB on the viscose viscosity,the cure time, and mechanical properties of polymer were studied by brookfield viscometer ...
Chun Yan Chen, Li Long Gao, Xiao Feng Wang   +2 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

Perfluoroalkyl-Functionalized HTPB Improves the Mechanical and Combustion Performance of Boron/HTPB Composites as Solid Fuel

ACS Applied Polymer Materials
Dongwon Ka, Xiaolin Zheng
exaly   +2 more sources

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