Results 51 to 60 of about 183,821 (192)

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

Development and Characterization of Thermo‐Responsive Shape Memory Composite of Polybenzoxazine and Modified Ultrafine Fully Vulcanized Natural Rubber (UFPNR) Filler

SPE Polymers, Volume 7, Issue 4, October 2026.
Tough Thermo‐Responsive Composite from PBA‐a and Monomer Grafted UFPNR. ABSTRACT In this study, various types and concentrations of ultrafine fully vulcanized powdered natural rubbers (UFPNR) were evaluated on how they affect the toughness of bisphenol A polybenzoxazine (PBA‐a).
Achiraya Pattulee, Ibrahim Lawan, Nuttinan Boonnao, Reza Gholami, Panyawutthi Rimdusit, Sarawut Rimdusit   +5 more
wiley   +1 more source

Influence of Hydroxyl-Terminated Polybutadiene (HTPB) on the Mechanical and Electrical Properties of Epoxy Phenol Novolac Resin [PDF]

Mechanics of Advanced Composite Structures
Epoxy phenol novolac resin is among the most widely used matrix materials in the fabrication of composite structures. Incorporating elastomeric droplets into the matrix is one approach to enhancing the properties of composite materials.
Mahmoud Heydari, Komeil Pahlavani Bidgoli   +1 more
doaj   +1 more source

Design, Production and Evaluation of 3D-Printed Mold Geometries for a Hybrid Rocket Engine

Aerospace, 2021
The feasibility of 3D-printed molds for complex solid fuel block geometries of hybrid rocket engines is investigated. Additively produced molds offer more degrees of freedom in designing an optimized but easy to manufacture mold.
Benedict Grefen, Johannes Becker, Stefan Linke, Enrico Stoll   +3 more
doaj   +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

Study of physico-chemical properties of raw materials for solid propellant

Авіаційно-космічна техніка та технологія, 2022
In the study of the physicochemical properties of low molecular weight polybutadiene rubber with functional hydroxyl groups (Hydroxyl Terminated Poly Butadien – HTPB), which is a raw material for solid rocket fuel (SRP), an experimental batch of rubber ...
Viktor Muratov, Sergey Borisenko, Nikolay Koshevoy, Anatoliy Sanin, Maxim Kravchenko   +4 more
doaj   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, Volume 38, Issue 51, 11 September 2026.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

Study of the Effect of Nitrated Hydroxyl-terminated Polybutadiene (NHTPB) on the Properties of Heterogeneous Rocket Propellants [PDF]

, 2015
This paper presents results from research concerning the effect of nitrated hydroxyl-terminated polybutadiene (NHTPB), content up to 3%, on the physicochemical, physico-mechanical and ballistic properties of heterogeneous rocket propellants based on ...
Florczak, B., Bogusz, R., Dzik, A., Chmielarek, M., Skupiński, W.   +4 more
core  

Influence of mono-lithium based initiators with different steric volumes on 1,4 unit content of hydroxyl terminated polybutadiene using anionic polymerization

, 2017
The influence of steric structural factors of mono-lithium based anionic initiators on 1,4 unit content of hydroxyl terminated polybutadiene was investigated.
Na Zhao, Xin Min, Xiao-dong Fan, Jie Liu, Xiu-zhong Zhu, Zi-chao Wang   +5 more
core   +1 more source

Chiral Morphing of Liquid Crystal Polymer Networks

Advanced Science, Volume 13, Issue 51, 14 September 2026.
This paper reviews how macroscopic chirality spontaneously arises from liquid crystal polymer materials. It describes how alignment is utilized to create the mechanical anisotropy, geometric misorientation and asymmetry that leads to chiral shape morphing, how shape selection between helicoids and helices arises, the techniques used to prepare these ...
Laurens T. de Haan
wiley   +1 more source