Results 51 to 60 of about 4,593 (217)

Synthesis and Characterization of an Azido Nitrofurazanyl Ether: An Energy‐Rich Heterocyclic Plasticizer With a Low Glass Transition Temperature

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 8, Page 1365-1374, August 2026.
ABSTRACT We report on the synthesis and characterization of 3‐(2‐(2‐azidoethoxy)ethoxy)‐4‐nitro‐1,2,5‐oxadiazole (NFPEG2N3), which is a liquid nitrofurazanyl ether that was designed to be an energy‐rich plasticizer for glycidyl azide polymer (GAP)‐ and nitrocellulose (NC)‐based formulations.
P. Lieber, A. Omlor, U. Schaller, T. M. Klapötke   +3 more
wiley   +1 more source

Biaxial tensile test and meso damage numerical simulation of HTPB propellant

Scientific Reports, 2022
Aiming at the shortcomings of the current research on the mechanical properties of solid propellants under complex stress conditions, an effective cross-shaped test piece configuration and variable-scale biaxial tensile test method are designed in this ...
Qizhou Wang, Guang Wang, Zhejun Wang, H. Qiang, Xueren Wang, Shiqi Li, Zhaojun Zhu   +6 more
semanticscholar   +1 more source

Purification and Properties of Polyvinyl Nitrate and Its Compatibility With Solid Oxidizers

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 8, Page 1224-1234, August 2026.
ABSTRACT Polyvinyl nitrate (PVN) is a nitrate‐ester energetic binder that can be produced directly from polyvinyl alcohol—a cheap commodity feedstock—thereby offering potential cost and supply‐chain advantages over binders based on nitrocellulose and other specialty polymers.
Stephen Spice, Monica C. Chandwani, Carole A. Morrison, Colin R. Pulham   +3 more
wiley   +1 more source

The Functional Differences between the GroEL Chaperonin of Escherichia coli and the HtpB Chaperonin of Legionella pneumophila Can Be Mapped to Specific Amino Acid Residues

Biomolecules, 2021
Group I chaperonins are a highly conserved family of essential proteins that self-assemble into molecular nanoboxes that mediate the folding of cytoplasmic proteins in bacteria and organelles.
Karla N. Valenzuela-Valderas, Gabriel Moreno-Hagelsieb, John R. Rohde, Rafael A. Garduño   +3 more
doaj   +1 more source

Effect of Fluoroalcohol Chain Extension Modified HTPB Binder on the Combustion Performance of Aluminized Propellants

Crystals
To enhance both the mechanical properties of hydroxyl-terminated polybutadiene (HTPB) binder and the combustion efficiency of aluminized propellants, 2,2,3,3,4,4,5,5-octafluoro-1,6-hexanediol (OFHD) was employed as a chain extender to impart mechanical ...
Yanjie Huang, Kanghua Chang, Jie Yao, Xueyong Guo, Chen Shen, Shi Yan   +5 more
semanticscholar   +1 more source

A Shock‐Tube Study of the HCl + M →$\to $ H + Cl + M (M = Ar) Rate Constant Using HCl Laser Absorption Near 3.3 µm

International Journal of Chemical Kinetics, Volume 58, Issue 7, Page 371-382, July 2026.
ABSTRACT Hydrogen chlorine (HCl) is an important combustion intermediate during plastic (municipal waste) and composite propellant (aerospace) combustion, but the understanding of its high‐temperature chemistry is still evolving. In this study, the pyrolysis of 0.5% HCl in Ar was investigated behind reflected shock waves in a shock tube at temperatures
Claire M. Grégoire, Olivier Mathieu, Eric L. Petersen   +2 more
wiley   +1 more source

Determinação da distribuição de funcionalidade de HTPB e verificação de sua influência no comportamento mecânico de poliuretano utilizado em motor-foguete Determination of functionality distribution of HTPB and evaluation of its influence in the mechanical behaviour of polyurethane used in rocket cases

Polímeros, 2006
Um método SEC com dupla detecção para determinação de distribuição de funcionalidade de resina polibutadiênica hidroxilada HTPB foi desenvolvido, verificando-se a influência desse parâmetro no comportamento mecânico de poliuretano utilizado em motor ...
Vera L. Lourenço, Aparecida M. Kawamoto, Jairo Sciamareli, Luis C. Rezende, Darci C. Pires, Marta F. K. Takahashi, Agda V. Berdugo, Sandra M. Cruz, Rita C.L. Dutra, Bluma G. Soares   +9 more
doaj   +1 more source

Controllable Energy Release of Boron@Tannic Acid@Ammonium Perchlorate Energetic Microunits Governed by Cu Single Atoms

Rare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Controllable energy release in solid propellants has always been a challenging technology, and extensive efforts have been devoted to the synthesis and application of catalysts to achieve its controllable release. In this study, tannic acid (TA) and its complexes (TA‐Cu) were introduced into boron@ammonium perchlorate (B@AP) composites using ...
Yong Kou, Ben Liu, Ronghuan Yang, Yongjun Gu, Xiaolong Fu, Qiangqiang Lu, Jiahao Yu, Jun Di, Guigao Liu, Lei Xiao, Fengqi Zhao, Wei Jiang, Gazi Hao   +12 more
wiley   +1 more source

Numerical Conversion Method for the Dynamic Storage Modulus and Relaxation Modulus of Hydroxy-Terminated Polybutadiene (HTPB) Propellants

Polymers, 2022
As a typical viscoelastic material, solid propellants have a large difference in mechanical properties under static and dynamic loading. This variability is manifested in the difference in values of the relaxation modulus and dynamic modulus, which serve
Yongchao Ji, L. Cao, Zhuo Li, Guoqing Chen, Peng Cao, Tong Liu   +5 more
semanticscholar   +1 more source

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

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 6, Page 955-965, June 2026.
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