Simultaneously Enhanced Cryogenic Tensile Strength, Ductility and Impact Resistance of Epoxy Resins by Polyethylene Glycol
Feng Qingping, Yang Jiaoping, Liu Yu, Xiao Hongmei, Fu Shaoyun*
Fig. 6. SEM images for the fracture surfaces of the samples after impact testing with various PEG-4000 contents: a 0 wt% at RT, b 0 wt% at 77 K, c 10 wt% at RT, d 10 wt% at 77 K, e 15 wt% at RT, f 15 wt% at 77 K, g 20 wt% at RT, h 20 wt% at 77 K.