Results 81 to 90 of about 1,271 (200)

Facile synthesis and proposed mechanism of α,ω‐oxetanyl-telechelic poly(3-nitratomethyl-3-methyl oxetane) by an SN2(i) nitrato displacement method in basic media [PDF]

, 2016
The synthesis of a novel heterocyclic–telechelic polymer, α,ω-oxetanyl-telechelic poly(3-nitratomethyl-3-methyl oxetane), is described. Infrared spectroscopy (IR), gel permeation chromatography (GPC), and nuclear magnetic resonance (NMR) spectroscopy ...
Bunyan P. F., Claire Stanley, Daniel O. Acheampong, Desai H., Frankel M. B., Hannah Whitmore, Harikrishna Erothu, Helen Turner, Hemant J. Desai, Manser G. E., McNaught A. D., Millar R. W., Paul Topham, Peter Golding, Richard Lacey, Robert Hudson, Simon Torry   +16 more
core   +2 more sources

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

Prediction of Storage Life of Propellants having Different Burning Rates using Dynamic Mechanical Analysis [PDF]

, 2012
Propellants, visco-elastic in nature, show time and temperature dependent behaviour on deformation. Hence, the time–temperature superposition principle may be applied to the visco-elastic properties of propellants.
Bhattacharya, B., Jain, Sunil, M, Mehilal, Singh, P.P., Wani, V.S.   +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

Polyurethane Based Inhibition for High Flame Temperature Nitramine Based Composite Modified Double Base propellant [PDF]

, 2013
The findings for polypropylene glycol (PPG) and hydroxyl-terminated polybutadiene (HTPB)-based inhibition systems are reported. These findings established that the inhibition system comprising HTPB-IPDI-IDP binder and Sb/sub 2/O/sub 3/-C black filler
Asthana, S. N., Divekar, P. K., Kadam, U. B., Kakade, S. D., Khangaonkar, D. G., Vaidya, M. V.   +5 more
core   +2 more sources

ANALISIS DAN KARAKTERISASI FUELBINDER PROPELAN KOMPOSIT PADAT SEBAGAI UPAYA MEWUJUDKAN KEMANDIRIAN PRODUKSI PROPELAN ROKET DI LEMBAGA PENERBANGAN DAN ANTARIKSA NASIONAL [PDF]

, 2020
Penyusun utama propelan komposit padat terdiri dari oksidator dan fuelbinder. Hydroxy-terminated Polybutadiene (HTPB) merupakan cairan bening yang sering digunakan sebagai binder dalam propelan komposit padat berkisar 15% – 20%.
Muda, Nur Rachman Supadmana, Pawestri, Alivia Maulidina, Siahaan, Timbul   +2 more
core   +1 more source

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

Effect of Nano Cr2O3 in HTPB/AP/Al Based Composite Propellant Formulations [PDF]

, 2016
Different compositions have been prepared by incorporating nano sized chromium oxide from 0.25 % to 1 % in HTPB/AP/Al based composite propellant formulation having 86% of solid loading and studied its effect on viscosity build-up, thermal, mechanical and
Dhabbe, Kashinath, Jawale, Lalita, Khire, Vrushali, Kshirsagar, Dhirendra, Kurva, Ramesh, Maurya, Mehilal, Singh, Sudhir   +6 more
core   +2 more sources

ISRO Polyol - The Versatile Binder for Composite Solid Propellants for Launch Vehicles and Missiles [PDF]

, 2014
A family of propellants based on a low cost hydroxy terminated binder has been developed and proved in large size motors. It can meet the requirements of Apogee motors as well as large boosters.
Krishnamurthy, V. N., Thomas, Solomon
core   +2 more sources

Mechanical properties of HTPB propellants: Recent advances and underlying mechanisms

Energetic Materials Frontiers
Hydroxyl-terminated polybutadiene (HTPB)-based composite solid propellants (CSPs) are widely used in solid rocket motors due to their excellent mechanical properties and low cost.
Wasiullah Qazi, Rui Pu, Yuan Qin, Qi-Long Yan   +3 more
doaj   +1 more source