Results 31 to 40 of about 410 (183)

Screening Surface Modifications to Benzene to Improve Solubility in Hydroxyl‐Terminated Polybutadiene (HTPB)—A DFT Demonstration

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT The objective of this paper is to demonstrate the advantage of computationally pre‐screening surface‐modifying material candidates, using density functional theory (DFT), to inform experimental synthesis and formulation efforts. This demonstration focuses on improving the solubility of benzene‐based materials in hydroxyl‐terminated ...
Samantha E. Knoth
wiley   +1 more source

An experimental study on the erosion of solid propellant by cavitation water jet in submerged environment

Polymer Testing
The submerged cavitation water jet (SCWJ) is a promising technology for removing solid propellant from old solid rocket engines and recycling them. In this study, the feasibility of using SCWJ to break solid propellant is investigated.
Wenjun Zhou, Bo Liu, Meng Zhao, Xuanjun Wang   +3 more
doaj   +1 more source

Machine Learning for Thermodynamic States of Notional Nonideal Energetic Mixtures

Propellants, Explosives, Pyrotechnics, EarlyView.
. ABSTRACT Currently, modeling the thermodynamic states in the reaction zone of a detonating energetic mixture entails iteratively solving a set of coupled differential equations that require detailed material property information or models whose empirical parameters must be physically measured.
Sangeeth Balakrishnan, Jesse Hearn, Francis G. VanGessel, Brian C. Barnes, Ruth Doherty, William Wilson, Ryan Ciufo, Peter W. Chung   +7 more
wiley   +1 more source

High-nitrogen azotetrazole based pyrogen gas generating propellants: Aspects on synthesis, characterization, combustion characteristics and kinetics

FirePhysChem
Propellant formulations containing a novel high nitrogen azotetrazole salt viz., diammonium 5,5′-azotetrazolate (DAAzT) along with two different binders viz., hydroxyl terminated polybutadiene (HTPB) and glycidyl azide polymer (GAP) were realized as ...
Santhosh G, J. Anju, Supriya N, Sreejith M, Suraj S   +4 more
doaj   +1 more source

Effects of Low Temperature and High Strain Rate on the Tensile Behaviors of High-Performance Energetic Composite

MATEC Web of Conferences, 2016
To further study the effects of low temperature and high strain rate on the tensile behaviors of hydroxyl-terminated polybutadiene (HTPB) propellant, an INSTRON testing machine was applied for carrying out the uniaxial tensile tests at low temperatures ...
Wang Zhe Jun, Qiang Hong Fu, Wang Guang, Zhu Zhao Jun   +3 more
doaj   +1 more source

Mechanical Properties of Composite Solid Propellant with Initial Defects

Journal of Aeronautical Materials, 2018
To study the mechanical properties of composite solid propellant with initial interface defects, the mesoscopic structure model for HTPB (hydroxyl-terminated polybutadiene) propellant was established based on the periodicity assumption and molecular ...
FENG Tao, XU Jinsheng, HAN Long, CHEN Xiong, ZHOU Changsheng   +4 more
doaj   +1 more source

Combustion characteristics of cross-linked fluorinated polymer supported aluminum/oxidizer microsphere in HTPB propellant

FirePhysChem, 2022
Combustion behaviors of propellant depend heavily on the architecture of the pocket bounded by coarse AP particles. In order to achieve a better control of the meso-scale architecture of the pocket, overcoming random mixing of the fine particles inside ...
Tianfu Zhang, Nan Yao, Chongyang Zhou, Yang Li, Yanpeng Zhao, Aimin Pang, Shixi Wu   +6 more
doaj   +1 more source

Effect of Hydroxyl‐Terminated Polybutadiene Grade on Rheology and Settling of High‐Solids Mixtures of Mock Propellants

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT The most common binder used in composite rocket propellants is based on the pre‐polymer hydroxyl‐terminated polybutadiene (HTPB). It has been shown to have excellent mechanical properties and a long life once crosslinked, and studies have examined the kinetics of crosslinking and pot life of energetic formulations with HTPB.
Laurel Hilger, Alexandra A. Dobbs, Blair Brettmann   +2 more
wiley   +1 more source

Research on mechanical properties of HTPB propellants

Journal of Physics: Conference Series
Abstract Slat propellants with different sizes and shapes are designed to investigate the strength criteria of HTPB propellants. According to the calculation and simulation results, with the increase of multiple, the designed size slat specimens can achieve equivalent biaxial tensile stress ratios of 1:2, 1:2.5, 1:3, 1:3.5, and 1:4 under
Chang Liu, Zhiqiang Chang, Chao Li, Fujun He, Yake Wu   +4 more
openaire   +1 more source

Boosting Decomposition and Combustion of TKX‐50 and HTPB/TKX‐50 Propellants With NH2‐MIL‐88B(Fe) MOF

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Dihydroxylammonium 5,5′‐bistetrazole‐1,1′‐diolate (TKX‐50) is a promising energetic material that possesses both exceptional energy density and low sensitivity. Nevertheless, its application is hindered by incomplete pyrolysis during combustion or explosion. Various strategies, including eutectic formation, composite preparation, and catalysis,
Jingwen Chen, Yong Kou, Qiangqiang Lu, Hongfeng Ji, Dongqi Liu, Xiaojun Feng, Kun Zhang, Guigao Liu, Wei Jiang, Jun Di, Gazi Hao   +10 more
wiley   +1 more source