Results 161 to 170 of about 467 (183)
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Issues Related with Pot Life Extension for Hydroxyl‐Terminated Polybutadiene‐Based Solid Propellant Binder System

Propellants, Explosives, Pyrotechnics, 2014
AbstractExtension of the pot life for hydroxyl‐terminated polybutadiene (HTPB) based propellant binder systems was attempted through employing a bicurative system comprising of toluene‐di‐isocyanate (TDI) and isophorone‐di‐isocyanate (IPDI). Pot life characteristics were studied through evaluating curing kinetics for the HTPB‐bicurative binder ...
V. Sekkar, Thakur Sudesh Kumar Raunija
openaire   +1 more source

Molecular investigations on the adsorption and flow behavior of hydroxyl-terminated polybutadiene (HTPB) binders on Cu surfaces: The effects of surface nanostructure and perfluorosilylation

Progress in Organic Coatings, 2020
Abstract The flow behavior of highly viscous casting explosives in micro-channels and special shaped moulds are critical factors affecting the formations of solid propellants and explosives. In the present work, the spreading property and flow behavior of hydroxyl-terminated polybutadiene (HTPB) binders, a major component of casting explosives, on Cu
Ting Zheng   +3 more
openaire   +1 more source

Investigations of effect of hydroxyl-terminated polybutadiene-based polyurethane binders containing various curatives on thermal decomposition behaviour and kinetics of energetic composites

Journal of Thermal Analysis and Calorimetry, 2020
An energetic composite of an octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine with a polymer matrix is generally developed to reduce sensitivity, improve mechanical strength and furnish engineering shape. A hydroxyl-terminated polybutadiene (HTPB) and various curatives, namely methylene diphenyl diisocyanate (MDI), isophorone diisocyanate (IPDI ...
Rajesh Kumar   +4 more
openaire   +1 more source

Synthesis and characterization of iron carbonyl‐modified hydroxyl‐terminated polybutadiene: A catalyst‐bound propellant binder for burn‐rate augmentation

Journal of Applied Polymer Science, 2003
AbstractIron was coordinately linked to the hydroxyl‐terminated polybutadiene (HTPB) backbone using iron carbonyl via a ligand displacement reaction. The modified HTPB thus obtained was reddish brown in color and was characterized by GPC, FTIR, NMR, thermal, and propellant studies. No significant changes in the rheology, molecular weight, and molecular
K. Subramanian, K. S. Sastri
openaire   +1 more source

Molecular investigation of adsorption behaviors of hydroxyl-terminated polybutadiene (HTPB) binders onto copper surface: The effects of aluminum nanoparticles

Applied Surface Science, 2019
Abstract The adherent behaviors of hydroxyl-terminated polybutadiene (HTPB), a typical high viscosity liquid widely used as a binder in rocket motor propellants, onto the copper (Cu) surfaces with/without the interference of Al nanoparticles were investigated by classical molecular dynamics (MD) simulations.
Chunya Wu   +9 more
openaire   +1 more source

Synergistically catalysed pyrolysis of hydroxyl terminated polybutadiene binder in composite propellants and burn rate enhancement by free-standing CuO nanoparticles

Combustion and Flame, 2017
Abstract Free-standing nanoparticles are a ubiquitous requirement for high-efficiency catalytic applications. Here, we report the catalytic pyrolysis of hydroxyl terminated polybutadiene (HTPB) binder in composite propellant by free-standing CuO nanoparticles synthesized through a novel aqueous thermolysis synthetic route.
Kranthi Chatragadda, Anuj A Vargeese
openaire   +1 more source

Burning‐rate enhancement of a high‐energy rocket composite solid propellant based on ferrocene‐grafted hydroxyl‐terminated polybutadiene binder

Journal of Applied Polymer Science, 2010
AbstractFour different samples of ferrocene‐grafted hydroxyl‐terminated polybutadiene (Fc‐HTPB), containing 0.20, 0.52, 0.90, and 1.50 wt % iron, were synthesized by the Friedel–Crafts alkylation of ferrocene with hydroxyl‐terminated polybutadiene (HTPB) in the presence of AlCl3 as a (Lewis acid) catalyst.
D. Saravanakumar   +4 more
openaire   +1 more source

Thermal Property Enhancement of Paraffin-Wax-Based Hydroxyl-Terminated Polybutadiene Binder with a Novel NanoSiO2-Expanded Graphite-PW Ternary Form-Stable Phase Change Material

Energy & Fuels, 2018
High volume change and low thermal conductivity will impede the application of paraffin wax (PW). Expanded graphite (EG) is one of the best materials to shape-stabilize PW and improve its thermal conductivity. NanoSiO2 is also considered as a good supporting material of PW. Herein, a novel nanoSiO2-EG-PW ternary form-stable phase change material (FSPCM)
Xia Gao   +7 more
openaire   +1 more source

Functional Alkyl‐Ferrocene Grafted Hydroxyl Terminated Polybutadiene

ChemistrySelect, 2021
Bikash Kumar Sikder   +2 more
exaly  

A novel form-stable paraffin-based hydroxyl-terminated polybutadiene binder containing microencapsulated paraffin wax

Journal of Thermal Analysis and Calorimetry, 2018
Xia Gao   +7 more
openaire   +1 more source

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