Results 81 to 90 of about 1,311 (196)

Effect of fillers and fire retardant compounds on hydroxy terminated polybutadiene based insulators [PDF]

, 2001
A series of polyurethane compositions have been formulated using hydroxy-terminated polybutadiene as polymeric binder and carbon black as a major filler. Various binder-to-filler ratios of the formulations were evaluated to get calendered sheets. The
Gupta, M., Kadam, U. B., Kakade, S. D., Navale, S. B.   +3 more
core   +2 more sources

Properties of high cis-1,4 content hydroxyl-terminated polybutadiene and its application in composite solid propellants

Defence Technology
In this paper, high cis-1,4 content hydroxyl-terminated polybutadiene (cis-HTPB) with different molecular weights was prepared through the oxidative cracking process using cis-butadiene rubber as raw material.
Deqian Meng, Lipeng Sang, Pingan Zhang, Jianru Deng, Xiang Guo   +4 more
doaj   +1 more source

Experimental investigation of paraffin-based fuels for hybrid rocket propulsion [PDF]

, 2013
Solid fuels for hybrid rockets were characterized in the framework of a research project aimed to develop a new generation of solid fuels, combining at the same time good mechanical and ballistic properties.
F. Maggi, L. Galfetti, L. Merotto, L. T. De Luca, M. Boiocchi   +4 more
core   +1 more source

Inhibition of Hotspot Formation in Polymer Bonded Explosives Using an Interface Matching Low Density Polymer Coating at the Polymer–Explosive Interface [PDF]

, 2014
In order to elucidate how shocks in heterogeneous materials affect decomposition and reactive processes, we used the ReaxFF reactive force field in reactive molecules dynamics (RMD) simulations of the effects of strong shocks (2.5 and 3.5 km/s) on a ...
An, Qi, Goddard, William A., III, Luo, Sheng-Nian, Zybin, Sergey V.   +3 more
core   +1 more source

Cationic vinyl pyridine copolymers and products thereof [PDF]

, 1978
Quaternized, cross-linked, insoluble copolymers of unsubstituted and substituted vinyl pyridines and a dihalo organic compound are spontaneously formed at ambient temperature on mixing the two monomers in bulk, in solution or in suspension. The amount of
Rembaum, Alan
core   +1 more source

Studies on Sheet Explosive Formulation Based on Octahydro-1,3,5,7-Tetranitro-1,3,5,7-Tetrazocine and Hydroxyl Terminated Polybutadiene [PDF]

, 2017
The effect of replacing hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) by octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) in HTPB-binder on the performance, sensitivity, thermal, and mechanical properties of the sheet explosive formulation has been
Jangid, Suresh Kumar, Murthy, Krothapalli Prabhakara Subrahmania, Singh, Mrityunjay Kumar, Sinha, Rabindra Kumar, Solanki, Vasant Jadavji   +4 more
core   +2 more sources

HTPB propellant aging mechanisms and safety characteristics: microscopic structural changes, thermal stability, and self-accelerating decomposition temperature

Case Studies in Thermal Engineering
As hydroxyl-terminated polybutadiene (HTPB) propellant surpasses its intended service life, its performance degrades, necessitating careful disposal to avert potential safety hazards.
Xi-chen Liu, Yi-min Luo, Wen-jiang Li, Fei-yang Xu, Xing-liang Wu, Qiang Li, Da-bin Liu   +6 more
doaj   +1 more source

Three-dimensional microstructural characterization of HMX-based propellant via synchrotron X-ray tomography

Energetic Materials Frontiers
Although octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) plays a critical role in high-performance weapon systems, its microstructural behavior within the grains of solid propellants and PBXs has not been fully explored. This challenge arises from
Jun Wang, Chen-xi Ma, Pei-pei Wang, Jun-feng Wang   +3 more
doaj   +1 more source

Decomposition in HTPB bonded HMX followed by heat generation rate and chemiluminescence [PDF]

, 2018
The decomposition in HTPB bonded HMX was characterized with two highly sensitive methods: heat flow microcalorimetry (HFMC) and Chemiluminescence (CL). The material is stabilized with a phenolic antioxidant. The heat generation (HFMC) rate was determined
Bohn, M., Käser, F.
core  

Isocyanate-free Carboxyl-terminated Polybutadiene and Epoxidised Hydroxyl-terminated Polybutadiene Cross-linking System as a Binder in Solid Heterogeneous Propellants

Central European Journal of Energetic Materials, 2023
Michał Chmielarek, Natalia Stopa
openaire   +1 more source