Speaker
Prof.
Laifeng Li
(State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)
Description
In order to investigate the effect of the matrix variability on the interlaminar shear strength (ILSS) of the glass fiber reinforced composites at 77K, three kinds of modifiers were employed to modify the diethyl toluene diamine (DETD) cured diglycidyl ether of bisphenol F (DGEBF) epoxy resin system in this study. The woven glass fiber reinforced composites were fabricated by vacuum pressure impregnation (VPI) process. The ILSS at 77K was studied and the results indicated that introduction of modifiers used in this study can enhance the ILSS of composite at 77K and a maximum of 14.87% increase was obtained by addition of 10wt% IPBE into the epoxy matrix. Furthermore, scanning electron microscopy (SEM) was used to investigate the fracture mechanism and strengthening effect.
Primary authors
Dr
Chuanjun Huang
(Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS)
Dr
Jingwen Li
(Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS)
Prof.
Laifeng Li
(State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)
Dr
Zhixiong Wu
(State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)
