Results 31 to 40 of about 101 (88)

Thermal and mechanical reinforcement of a novel paraffin-based hydroxyl-terminated polybutadiene (HTPB) binder containing a three-dimension (3D) diurea–paraffin wax (DU–PW) for prevention of PW leakage

RSC Advances, 2018
DU is creatively used as supporting materials to shape-stablize PW. The prepared DU–PW composite can effectively improve the thermal and mechanical properties of PW/HTPB, indicating a prospect to prevent PW leakage in PBX.
Xia Gao, Tianbo Zhao, Guan Luo, Baohui Zheng, Hui Huang, Xue Han, Rui Ma, Yuqiao Chai   +7 more
openaire   +3 more sources

Thermo-oxidative aging behavior of high-cis1,4-hydroxyl-terminated polybutadiene

Defence Technology
This study investigates the thermo-oxidative aging behavior of high-cis hydroxyl-terminated polybutadiene (cis-HTPB, cis-1,4 content > 90%) through integrated multi-scale experiments and molecular simulations.
Xiaoyi Yang, Lipeng Sang, Bowen Tao, Pingan Zhang, Jianru Deng, Deqian Meng   +5 more
doaj   +1 more source

Low-Temperature Mesoscopic Mechanical Damage of AP/Al/HTPB Composite Propellants

International Journal of Aerospace Engineering
To investigate the mechanical damage of solid propellants under low-temperature conditions, an equivalent modeling approach was employed to establish a mesoscopic particle–embedded model of the hydroxyl-terminated polybutadiene (HTPB) propellant ...
Tianxiao Zhang, Wei Li, Jianfa Chen, Jianwei Zhang, Wangyang Geng   +4 more
doaj   +1 more source

Ultrasonically Accelerated Nitration of Hydroxyl-Terminated Polybutadiene: Process Efficiency and Product Characterization

Eng
Hydroxyl-terminated polybutadiene (HTPB) is widely studied and the most used prepolymer for the binder system of composite solid propellants. A suitable functionalization of HTPB with energetic groups greatly improves the performance of the propellant ...
Ventsislav Bakov, Spaska Yaneva, Nadezhda Rangelova, Milko Berner, Damyan Ganchev, Nikolai Georgiev   +5 more
doaj   +1 more source

Real-time visualization and numerical investigation of the dynamic compression response behaviours of single AP/HMX particles embedded in an HTPB binder

Defence Technology
An in-depth understanding of the behaviours of solid propellants under low-velocity impact loads is crucial for enhancing their safety in applications such as aerospace propulsion.
Yiming Zhang, Hanqing Xia, Kangyu Ji, Ningfei Wang, Ke Li, Sen Chen, Yi Wu   +6 more
doaj   +1 more source

Enhancing energetic features of HTPB binder through nitro-functionalization and nitrocellulose doping

FirePhysChem
This study presents a double modification strategy to enhance hydroxyl‑terminated polybutadiene (HTPB) properties as an energetic binder. HTPB was chemically nitrated to obtain nitro-HTPB (NHTPB), then blended with nitrocellulose (NC) at different ratios
Mohammed Jouini, Amir Abdelaziz, Ahmed Fouzi Tarchoun, Fathi Rahamnia, Slimane Bekhouche, Yash Pal, Weiqiang Pang, Djalal Trache   +7 more
doaj   +1 more source

Effect of energy content of the nitraminic plastic bonded explosives on their performance and sensitivity characteristics

Defence Technology, 2019
Information about the forty nine nitraminic plastic bonded explosives (PBXs) and different nitramines were collected. Fillers of these PBXs are nitramines 1,3,5-trinitro-1,3,5-triazinane (RDX) and β-1,3,5,7-tetranitro-1,3,5-tetrazocane (β-HMX), cis-1,3,4,
Svatopluk Zeman, Ahmed K. Hussein, Marcela Jungova, Ahmed Elbeih   +3 more
doaj   +1 more source

Isocyanate-free Carboxyl-terminated Polybutadiene and Epoxidised Hydroxyl-terminated Polybutadiene Cross-linking System as a Binder in Solid Heterogeneous Propellants

Central European Journal of Energetic Materials, 2023
Michał Chmielarek, Natalia Stopa
openaire   +1 more source

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   +1 more source

HTPB propellant aging mechanisms and safety characteristics: microscopic structural changes, thermal stability, and self-accelerating decomposition temperature

Case Studies in Thermal Engineering
As hydroxyl-terminated polybutadiene (HTPB) propellant surpasses its intended service life, its performance degrades, necessitating careful disposal to avert potential safety hazards.
Xi-chen Liu, Yi-min Luo, Wen-jiang Li, Fei-yang Xu, Xing-liang Wu, Qiang Li, Da-bin Liu   +6 more
doaj   +1 more source