Results 11 to 20 of about 101 (88)

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   +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

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

Síntese de poliuretanos modificados por óleo de mamona empregados em materiais energéticos

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   +1 more source

Study on Multispectral Characterization and Pyrolysis Mechanism of Modified HTPE and HTPB [PDF]

Zhipu Xuebao, 2023
Hydroxyl-terminated polybutadiene/polyether (HT-PB/PE), serving as binders and fuel for rocket propellants, has been widely studied and applied. To meet the developing demand of industrialization, the modification of HT-PB/PE based on their structural ...
QIAN Ying-ying1, WANG Zhan-dong2, LI Heng3, ZHUANG Hai-feng1, CHEN Lin1, JIA Liang-yuan1, XU Si-yu3   +6 more
doaj   +1 more source

Thermal decomposition and kinetic modeling of HNTO/AN-based composite solid propellant in the presence of GO-based nanocatalyst

FirePhysChem, 2022
The present study has been conducted to investigate the characteristics of composite solid propellant (CSP) based on hydrazinium 3-nitro-1,2,4-triazol-5-one and ammonium nitrate (HNTO/AN) cocrystal as an oxidizer and hydroxyl-terminated polybutadiene ...
Sabrina Hanafi, Djalal Trache, Redha Meziani, Hani Boukeciat, Ahmed Fouzi Tarchoun, Amir Abdelaziz, Abderrahmane Mezroua   +6 more
doaj   +1 more source

Research progress of nitrate ester binders

FirePhysChem, 2023
Nitrate ester binders are a unique class of energetic binders containing nitrate ester (-ONO2) pendant groups attached to the polymeric backbones, which have been extensively employed in solid propellant formulations to improve overall energy output and ...
Jinkang Dou, Minghui Xu, Bojun Tan, Xianming Lu, Hongchang Mo, Bozhou Wang, Ning Liu   +6 more
doaj   +1 more source

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   +1 more source

Research on the Specific Heat Capacity of PBX Formulations Based on RDX

Journal of Aerospace Technology and Management, 2016
The experimental results of specific heat capacity of 2 plastic bonded explosives formulations based on 1,3,5-trinitroperhydro-1,3,5-triazine, using differential scanning calorimetry thermal analysis, and the theoretical ones calculated with the specific
Flávio Rodrigues Chaves, José Carlos Góis   +1 more
doaj   +3 more sources

Review on the regression rate-improvement techniques and mechanical performance of hybrid rocket fuels

FirePhysChem, 2021
Human spaceflight, space tourism, and the launch of microsatellites are all expected to grow in the future. In fact, with the recent increase of the satellite market, almost 1000 smallsats per year are foreseen to be launched over the next decade. Hybrid
Yash Pal, Sri Nithya Mahottamananda, Sasi Kiran Palateerdham, Sivakumar Subha, Antonella Ingenito   +4 more
doaj   +1 more source