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Indexed by:会议论文

Date of Publication:2017-08-20

Volume:2017-August

Abstract:The tensile and compressive mechanical properties of bisphenol F epoxy resin at different cryogenic temperatures (from 20°C to -180°C) were measured by experimental approaches. First, the elastic modulus of the epoxy resin at different temperatures was measured, and it was found the elastic modulus of the epoxy resin increased with the decrease of temperature. From -180°C to -120°C, the modulus is basically linear with the temperature; while in the range between -120°C and 20°C, there is an approximately quadratic relationship. Then, the strength of the epoxy resin was tested. The results indicates that both the tensile and compressive strength of the epoxy resin increases with the decrease of temperature, and the temperature's influence on compressive strength is greater than on tensile strength. Finally, the macro and micro fracture morphologies of the specimens were checked, so as to reveal the intrinsic mechanism of the epoxy resin's different mechanical behaviors at room and cryogenic temperature. © 2017 International Committee on Composite Materials. All rights reserved.