Results 31 to 40 of about 11,287 (255)

Radiation-induced pyrolysis of solid fuels for ramjet application

Propulsion and Power Research, 2016
A wide variety of hydroxyl-terminated polybutadiene (HTPB) based fuels are experimentally assessed in anaerobic reaction. In this study HTPB pyrolysis is investigated using a CO2 laser as the energy source.
Trevor D. Hedman
doaj   +1 more source

Simulation Analysis of the Safety of High-Energy Hydroxyl-Terminated Polybutadiene (HTPB) Engine under the Impact of Fragments

Crystals, 2023
The safety of solid rocket engine use seriously affects the survivability and combat effectiveness of weaponries. To study the engine safety against fragment in complex battlefield environments, the fragment impact safety simulation study of a high ...
Zheng Liu, J. Nie, Wenqi Fan, Jun Tao, Fangxin Jiang, Tiejian Guo, Kun Gao   +6 more
semanticscholar   +1 more source

Structure and dielectric properties of electroactive tetraaniline grafted non-polar elastomers [PDF]

, 2020
Intrinsic modification of polybutadiene and block copolymer styrene–butadiene–styrene with the electrically conducting emeraldine salt of tetraaniline (TANI) via a three-step grafting method, is reported in this work.
Ellingford, Christopher, Pengchaicharoen, Atcharaporn, Wan, Chaoying, Wemyss, Alan M.   +3 more
core   +1 more source

Study on the interfacial interaction between ammonium perchlorate and hydroxyl-terminated polybutadiene in solid propellants by molecular dynamics simulation

E-Polymers, 2022
The interfacial interaction between the main oxidant filler ammonium perchlorate (AP) and hydroxyl-terminated polybutadiene (HTPB) matrix in AP/HTPB propellants were studied via an all-atom molecular dynamics simulation.
Ge Dong, He Liu, Lei Deng, Haiyang Yu, Xingli Zhou, Xianqiong Tang, Wei Li   +6 more
semanticscholar   +1 more source

Desenvolvimento de tecnologia de pré-polímeros na síntese de poliuretanos empregados em combustíveis sólidos

Química Nova, 2014
The aim of this work was to synthesize a polyurethane polymer matrix using polyols as a raw material to obtain a binder such as the hydroxyl terminated polybutadiene (HTPB) pre-polymer in energetic material formulation.
Marcelo Clemente, Roberta J. Rocha, Koshun Iha, José A. F. F. Rocco   +3 more
doaj   +1 more source

Modelling , of Polyurethanes Based on Hydroxyl- Terminated Polybutadiene

Defence Science Journal, 1998
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 cent solid loading wereconsidered to test the applicability of a.-model of Marsh, et al.
Manohar Singh, B.K. Kanungo, T.K. Bansal, M. Rama Rao   +3 more
openaire   +1 more source

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

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   +1 more source

Fabrication of Hydroxy-Terminated Polybutadiene with Piezoelectric Property by Functionalized Branch Chain Modification

Molecules, 2023
Hydroxyl-terminated polybutadiene (HTPB)-based piezoelectric polymer (m-HTPB) is prepared for the first time by functionalized branch chain modification strategy.
Bo Yuan, Guang Wang, Wenxue Tian, Li Zhou, Chunxiang Li   +4 more
doaj   +1 more source

Hydroxyl‐Terminated Polybutadiene‐Based Molding Powders as an Alternative Route for Manufacturing Pressed Polymer‐Bonded Explosives

Propellants, Explosives, Pyrotechnics, EarlyView.
This study presents an alternative method to manufacture polymer‐bonded explosives by partially curing an HTPB‐based molding powder prior to compaction. The study shows that the length of partial cure time before compaction directly influenced the geometric fidelity, homogeneity, compressive strength, density, and internal microstructure.
Ismar L. Chew, Cole Stephens, Ellen Ma, Julio Hernandez, Monique S. McClain   +4 more
wiley   +1 more source

Oil and fat absorbing polymers [PDF]

, 1977
A method is described for forming a solid network polymer having a minimal amount of crosslinking for use in absorbing fats and oils. The polymer remains solid at a swelling ratio in oil or fat of at least ten and provides an oil absorption greater than ...
Marsh, H. E., Jr.
core   +1 more source