Preparation of core-shell structured Al-5Li@HTPB powders with improved stability and combustion performance by using perfluoroalkylsilane as a surfactant

Zhu, Jiabao; Wang, Shuo; Xiong, Weiqiang; Wang, Jun; Li, Xiaodong; Zou, Meishuai

doi:10.1016/j.combustflame.2024.113326

Combustion and Flame

2024

DOI: 10.1016/j.combustflame.2024.113326

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Preparation of core-shell structured Al-5Li@HTPB powders with improved stability and combustion performance by using perfluoroalkylsilane as a surfactant

Jiabao Zhu,

Shuo Wang,

Weiqiang Xiong

et al.

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2024

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Cited by 2 publications

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Development and characterization of fluorosilane-modified expandable graphite for fire suppression

Ma,

Cao,

Tang

et al. 2024

J Therm Anal Calorim

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Development and characterization of fluorosilane-modified expandable graphite for fire suppression

Ma,

Cao,

Tang

et al. 2024

J Therm Anal Calorim

View full text Add to dashboard Cite

Perfluoroalkyl-Functionalized HTPB Improves the Mechanical and Combustion Performance of Boron/HTPB Composites as Solid Fuel

Robinson,

Ka,

Zheng

et al. 2024

ACS Appl. Polym. Mater.

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Solid composites comprising boron (B) and hydroxyl-terminated polybutadiene (HTPB) are attractive potential fuels for air-breathing propulsion systems. However, a notable challenge for B/HTPB composites is the sluggish oxidation kinetics of B that hinders the combustion efficiency. Addition of fluoropolymers in the composites has been found to improve the combustion efficiency but reduce the mechanical performance. Herein, we covalently grafted fluoroalkyl side chains onto HTPB (F-HTPB) to introduce fluorocarbon to B/HTPB composites without macroscopic phase separation and compared with composites using hydrocarbon grafted HTPB, pristine HTPB, and blended fluorocarbon. We found that B/HTPB composites using F-HTPB exhibited the best combined mechanical performance and flame propagation rate compared with the other formulations. These findings demonstrate that functionalizing HTPB with fluorocarbon side chains is a promising strategy to improve the mechanical and combustion properties of solid composite fuels.

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Preparation of core-shell structured Al-5Li@HTPB powders with improved stability and combustion performance by using perfluoroalkylsilane as a surfactant

Cited by 2 publications

References 34 publications

Development and characterization of fluorosilane-modified expandable graphite for fire suppression

Development and characterization of fluorosilane-modified expandable graphite for fire suppression

Perfluoroalkyl-Functionalized HTPB Improves the Mechanical and Combustion Performance of Boron/HTPB Composites as Solid Fuel

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