Results 171 to 180 of about 4,212 (194)

High Performance HTPB-Based Energetic Nanomaterial with CuO Nanoparticles

Journal of Nanoscience and Nanotechnology, 2009
This work describes the first example to demonstrate the enhancement of performances of composite highly energetic materials by mean of employing standard CuO nano-powder as burning rate catalyst in comparison to micro-fillers. The solid composite propellants with CuO microparticles are less stable due to oversensitivity to pressure variations, but the
José Luis, de la Fuente, Gonzalo, Mosquera, Rodrigo, París   +2 more
openaire   +2 more sources

Tensile fracture of HTPB based propellant specimens

Materials Science and Technology, 2002
AbstractThe failure of a viscoelastic material, such as solid propellant, is a complex phenomenon with a requirement to address the following two fundamental and complementary aspects in the failure criteria. First, what is the failure criterion for a solid propellant in stress–strain space, and what are the variations in failure data when failure is ...
K. Renganathan, B. S. V. Rama Sarma, B. Nageswara Rao, M. K. Jana   +3 more
openaire   +1 more source

HTPB Combustion Temperature Measurements

AIAA SCITECH 2023 Forum, 2023
Clayton M. Geipel, Christopher J. Pfutzner, Brian T. Fisher   +2 more
openaire   +1 more source

Noncovalent Interactions Define Global Properties of HTPB Isomers

The Journal of Physical Chemistry B
Commercially available hydroxyl-terminated polybutadiene (HTPB) variants [containing various percentages of its isomers (cis, trans, and vinyl) and utilized in numerous applications ranging from rocket propellant binders to automobile tires] exhibit differences in their thermomechanical properties.
Dipak Prasad, Nilanjan Mitra
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Synthesis and characterization of lignin–HTPB copolyurethane

European Polymer Journal, 2001
Abstract Lignin–HTPB copolyurethanes have been synthesized from hydroxyl terminated polybutadiene (HTPB) and varied quantities of lignin and toluene diisocyanate. IR spectroscopy and estimation of isocyanate groups have established the formation of HTPB polyurethane and lignin–HTPB copolyurethane.
Sanjay Sarkar, Basudam Adhikari
openaire   +1 more source

Investigation of Fracture Criterion for HTPB Propellant

Advanced Materials Research, 2012
The fracture toughness of HTPB propellant has a significant rate effect. In order to establish a fracture criterion considering rate effect for HTPB propellant, experiments were conducted at different loading rates. Two kinds of specimens were used to get the fracture properties.
Bo Han, Yu Tao Ju, Chang Sheng Zhou
openaire   +1 more source

Development of HTPB Propellant for Ballistic Missiles

1974
Abstract : The program objective is to develop a family of solid propellants for ballistic missiles based on an HTPB (hydroxyl terminated polybutadiene) binder, and to demonstrate one optimized propellant formulation by large scale motor firings. Specifically, five propellants have been formulated and are being characterized to the point that they will
Even E. Day, Grant Thompson
openaire   +1 more source

Droplet Impact of Additives and HTPB

AIAA SCITECH 2023 Forum, 2023
Marc A. Magana, Alexander Klotz, Joseph Kalman   +2 more
openaire   +1 more source

Chemistry and kinetics of hydroxyl-terminated polybutadiene (HTPB) and diisocyanate-HTPB polymers during slow decomposition and combustion-like conditions

Combustion and Flame, 1991
Abstract The decomposition chemistry and kinetics of hydroxyl-terminated polybutadiene (HTPB), hydroxyl-terminated polyethyleneglycol adipate (HTPA), and diisocyanate cross-linked HTPB (diisocyanates = TDI, IPDI, and DDI) were determined by TGA, DSC, and IR spectroscopy at 10°C/min and by SMATCH/FTIR at 250°–350°C/s. At 10°C/min, the first step (300°–
J.K. Chen, T.B. Brill
openaire   +1 more source

Accelerated Aging Tests of HTPB-Based Propellants

2018
In the late twentieth century, liquid and solid propulsion technologies have been integrated into hybrid engines currently apllied in propulsion launch vehicles and missiles. The reaction of polyol (HTPB) and diisocyanate (IPDI) provides the most versatile of the binders in the production of solid propellants due to its ability to withstand high loads ...
openaire   +1 more source