Results 11 to 20 of about 183,821 (192)

Ammonium Perchlorate and Ammonium Perchlorate- Hydroxyl Terminated Polybutadiene Simulated Combustion [PDF]

Journal of Aerospace Technology and Management, 2012
The combustion simulation of ammonium perchlorate was carried out with the software Chemkin, in two steps: the burning behavior of pure ammonium perchlorate and the one of formulated ammonium perchlorate with hydroxyl terminated polybutadiene binder.
Rene Francisco Boschi Gonçalves, Koshun Iha, Francisco Bolivar Correto Machado, José Atílio Fritz Fidel Rocco   +3 more
doaj   +5 more sources

Comparative Assessment of Stabilised Polybutadiene Binder under Accelerated Ageing

Journal of Aerospace Technology and Management, 2016
Polybutadiene elastomers are versatile materials, being employed at several applications from rocket propellant binder to adhesives and sealants. The elastomers derived from hydroxyl-terminated polybutadiene are usually stabilised with antioxidants to ...
Luiz Felipe Cannaval Sbegue, Luciene Dias Villar   +1 more
doaj   +5 more sources

Modelling , of Polyurethanes Based on Hydroxyl- Terminated Polybutadiene [PDF]

Defence Science Journal, 2013
Forty formulations based on four different grades ofhydroxyl-terminated polybutadiene, HTPB(hydroxyl value 20- 40 mg KOHlg) at r = [NCO] / [OH] values in the range 0.7 -1.0 with varyingamounts of trimethylol propane and butane diol and containing 86 per ...
Singh, Manohar, Bansal, T.K., Rao, M. Rama, Kanungo, B.K.   +3 more
core   +2 more sources

Synthesis and characterization of polyurethane based on hydroxyl terminated polybutadiene and reinforced by carbon nanotubes [PDF]

Egyptian Journal of Petroleum, 2015
Nanocomposites consisting of multi wall carbon wall carbon nano tubes MWCNT/polyurethane (PU) had been successfully prepared based on hydroxy terminated polybutadiene HTPB and the prepared MWCNT.
S.A. Shokry, A.K. El Morsi, M.S. Sabaa, R.R. Mohamed, H.E. El Sorogy   +4 more
doaj   +2 more sources

Cloisite 15Aº nanoclay as an effective PTC for the epoxidation of hydroxyl terminated polybutadiene (HTPB)

Polímeros, 2014
A simple method is reported for the epoxidation of hydroxyl-terminated polybutadiene (HTPB) by using in-situ generated dimethyl dioxirane (DMD) as an oxidant and Cloisite 15Aº nanoclay as a phase-transfer catalyst (PTC).
Mir Mohammad Alavi Nikje, Maryam Gholi Nataj   +1 more
doaj   +2 more sources

Surface Wetting Behaviors of Hydroxyl-Terminated Polybutadiene: Molecular Mechanism and Modulation. [PDF]

Polymers (Basel)
The surface wetting or coating of materials by polymers is crucial for designing functional interfaces and various industrial applications. However, the underlying mechanisms remain elusive.
Zhang X, Liu Z, Yuan B, Yang K.
europepmc   +4 more sources

EFFECTS OF THERMAL AGING ON THE PROPERTIES AND LIFETIME PREDICTION OF HYDROXYL-TERMINATED POLYBUTADIENE

Polymer, 1994
Thermal ageing of hydroxyl-terminated polybutadiene propellant binders was carried out at various temperatures between 50 and 100-degrees-C. The changes caused by this treatment in properties such as melt viscosity, functional end-groups, molecular ...
AKSOY, S, AKBAS, A
core   +3 more sources

Effect of hard segment content on the phase separation and properties of hydroxyl-terminated polybutadiene thermoplastic polyurethane

Polymer Testing
Thermoplastic polyurethane (TPU) possesses a distinctive microphase separation structure resulting from the thermodynamic incompatibility between its soft and hard segments.
Boxin Liu, Zhihao Niu, Zhanglei Wang, Yimin Wang, Hua Zou, Xiuying Zhao, Shikai Hu   +6 more
doaj   +2 more sources

An Overview of the Technological Progress in Propellants Using Hydroxyl-Terminated Polybutadiene as Binder During 2002–2012

Journal of Aerospace Technology and Management, 2013
http://dx.doi.org/10.5028/jatm.v5i3.242 The purpose of this article is to present a study on the technological development of propellants, which are used in solid and hybrid rocket motor, that have been employing hydroxyl-terminated polybutadiene (HTPB)
Gilson da Silva, Simone Carvalho Rufino, Koshun Iha   +2 more
doaj   +2 more sources

Reaction between azide molecule with hydroxyl terminated polybutadiene

, 2018
S.134.1-134.9In previous work the compatibility between azide molecules and HTPB was discussed in terms of Gel Permeation Chromatography (GPC) and continuously recording Vacuum Stability Test (VST) results.
Mendes, C., Bohn, Manfred A., Ferrapontoff Lemos, Mauricio, Dörich, Manuela, Keicher, Thomas   +4 more
core   +2 more sources