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Open AccessArticle
Preparation and Application of a Novel Liquid Oxygen-Compatible Epoxy Resin of Fluorinated Glycidyl Amine with Low Viscosity
by
Jianing Wei
Jianing Wei 1,
Jia Yan
Jia Yan 2,*,
Shichao Li
Shichao Li 3,
Juanzi Li
Juanzi Li 2 and
Zhanjun Wu
Zhanjun Wu 2,*
1
School of Mechanics and Aerospace Engineering, Dalian University of Technology, Dalian 116024, China
2
School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
3
School of Fiber Engineering and Equipment Technology, Jiangnan University, Wuxi 214122, China
*
Authors to whom correspondence should be addressed.
Polymers 2024, 16(19), 2759; https://doi.org/10.3390/polym16192759 (registering DOI)
Submission received: 27 August 2024
/
Revised: 17 September 2024
/
Accepted: 26 September 2024
/
Published: 29 September 2024
Abstract
A liquid oxygen-compatible epoxy resin of fluorinated glycidyl amine (TFEPA) with a low viscosity of 260 mPa·s in a wide range of temperatures, from room temperature to 150 °C, was synthesized and used to decrease the viscosity of phosphorus-containing bisphenol F epoxy resins. And the forming process and application performances of this resin system and its composite were investigated. The viscosity of the bisphenol F resin was decreased from 4925 to 749 mPa·s at 45 °C by mixing with 10 wt.% TFEPA, which was enough for the filament winding process. Moreover, the processing temperature and time windows were increased by 73% and 186%, respectively. After crosslinking, the liquid oxygen compatibility was preserved, and its tensile strength, elastic modulus, and breaking elongation at −196 °C were 133.31 MPa, 6.59 GPa, and 2.36%, respectively, which were similar to those without TFEPA. And the flexural strength and modulus were 276.14 MPa and 7.29 GPa, respectively, increasing by 21.73% in strain energy at flexural breaking, indicating an enhanced toughness derived from TFEPA. Based on this resin system, the flexural strength and toughness of its composite at −196 °C were 862.73 MPa and 6.88 MJ/m3, respectively, increasing by 4.46% and 10.79%, respectively.
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MDPI and ACS Style
Wei, J.; Yan, J.; Li, S.; Li, J.; Wu, Z.
Preparation and Application of a Novel Liquid Oxygen-Compatible Epoxy Resin of Fluorinated Glycidyl Amine with Low Viscosity. Polymers 2024, 16, 2759.
https://doi.org/10.3390/polym16192759
AMA Style
Wei J, Yan J, Li S, Li J, Wu Z.
Preparation and Application of a Novel Liquid Oxygen-Compatible Epoxy Resin of Fluorinated Glycidyl Amine with Low Viscosity. Polymers. 2024; 16(19):2759.
https://doi.org/10.3390/polym16192759
Chicago/Turabian Style
Wei, Jianing, Jia Yan, Shichao Li, Juanzi Li, and Zhanjun Wu.
2024. "Preparation and Application of a Novel Liquid Oxygen-Compatible Epoxy Resin of Fluorinated Glycidyl Amine with Low Viscosity" Polymers 16, no. 19: 2759.
https://doi.org/10.3390/polym16192759
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