Preparation and Application of a Novel Liquid Oxygen-Compatible Epoxy Resin of Fluorinated Glycidyl Amine with Low Viscosity.

Jianing Wei, Jia Yan, Shichao Li, Juanzi Li, Zhanjun Wu

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Article in Polymers, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 authors.

Jianing WeiSchool of Mechanics and Aerospace Engineering, Dalian University of Technology, Dalian 116024, China.

Jia YanSchool of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China.

Shichao LiSchool of Fiber Engineering and Equipment Technology, Jiangnan University, Wuxi 214122, China.

Juanzi LiSchool of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China.

Zhanjun WuSchool of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China.

Funding

Fundamental Research Funds for the Central Universities JUSRP123002National Key Research and Development Program of China 2018YFA0702800National Natural Science Foundation of China 12372134National Natural Science Foundation of China U2341235Young Elite Scientists Sponsorship Program by CAST YESS20200084

6 · The paper itself

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/m

Indexed as

composites tankepoxy resinfluororesinliquid oxygen-compatible resin

Identifiers

PMID39408469

DOI10.3390/polym16192759

PMCPMC11478847

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