Results 11 to 20 of about 467 (183)

Ammonium Perchlorate and Ammonium Perchlorate- Hydroxyl Terminated Polybutadiene Simulated Combustion

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   +2 more sources

Numerical Investigation on the Effect of Ammonium Perchlorate Content and Position on the Combustion Characteristics of an Ammonium Perchlorate/Hydroxyl-Terminated Polybutadiene Propellant

Aerospace, 2023
A gas–solid-coupled sandwich combustion model was established for ammonium perchlorate (AP)/hydroxyl-terminated polybutadiene (HTPB) composite propellant.
Di Sun, Yongzhou Li, Peijin Liu, Bofeng Chen, Wei Fan   +4 more
doaj   +2 more sources

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   +2 more sources

Effect of Various Alcohols and Reaction Time on the Properties of Hydroxyl Terminated Natural Rubber Synthesized via Oxidative Degradation

Chemical Engineering Transactions, 2017
The oxidative degradation of deproteinized natural rubber (DPNR) using cobalt bis(acetyl acetonate) in the presence of different alcohols and various reaction time; followed by reduction with sodium borohydride (NaBH4) for the synthesis of hydroxyl ...
N. Baharulrazi, S.H.C. Man, Z. Mohamad, H. Mohd Nor, W.K. Wan Ali   +4 more
doaj   +2 more sources

HTPB propellant binder supplemented with nitro potato starch: Formulation, characterization, and thermal decomposition behavior

FirePhysChem
This study conducted a detailed examination of the characteristics of hydroxyl‑terminated polybutadiene (HTPB) doped with potato starch nitrate (NPS) as a high-energy-density binder.
Mohammed Jouini, Amir Abdelaziz, Djalal Trache, Ahmed Fouzi Tarchoun, Souhil Amokrane, Abdelali Benzetta, Abderrahmane Mezroua   +6 more
doaj   +2 more sources

Síntese de poliuretanos modificados por óleo de mamona empregados em materiais energéticos [PDF]

Química Nova, 2013
The aim of this work was to synthesize a polyurethane polymer matrix using castor oil as a polymer chain modifier, whose characteristics can be adjusted for use as a binder in the manufacture of energetic materials such as propellant and pyrotechnics for
Roberta Jachura Rocha, José Eduardo Salgueiro Lima, Susane Ribeiro Gomes, Koshun Iha, José Atílio Fritz Fidel Rocco   +4 more
doaj   +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   +2 more sources

Influence of Process Aids on Solid-Liquid Interfacial Properties of Three-Component Hydroxyl-Terminated Polybutadiene Propellants. [PDF]

Polymers (Basel)
The effect of the process aid “OPS” on the rheological properties of hydroxyl-terminated polybutadiene propellant was investigated by formulating different components of high-solid-content slurry, and the change in slurry viscosity with shear rate ...
Zhang X, Deng Z, Xu W, Jiang L, Xu H, Tang Q, Zheng Q, Li J.   +7 more
europepmc   +2 more sources

Melt Cast High Explosives [PDF]

Biuletyn Wojskowej Akademii Technicznej, 2014
[b]Abstract[/b]. This paper reviews the current state and future developments of melt-cast high explosives. First the compositions, properties and methods of preparation of trinitrotoluene based (TNT) conventional mixtures with aluminum, hexogen (RDX) or
Stanisław Cudziło, Waldemar A. Trzciński   +1 more
doaj   +1 more source

High Calorific Values Boron Powder: Ignition and Combustion Mechanism, Surface Modification Strategies and Properties

Molecules, 2023
Boron powder is a kind of metal fuel with high gravimetric and volumetric calorific values, which has been widely used in military fields such as solid propellants, high-energy explosives, and pyrotechnics.
Yang Liu, Yinglei Wang, Yuezhou Liu, Baodong Zhao, Weixiao Liu, Qilong Yan, Xiaolong Fu   +6 more
doaj   +1 more source