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Yi Xu,Yuqin Ma,Yu Yang,Gangfeng Wang,Wei Xu,Fei Li,Haiyin Guo,Yatao Li 한국섬유공학회 2023 Fibers and polymers Vol.24 No.8
A study on the shape memory properties of 6 layers bi-directional basalt fiber/carbon fiber hybrid composites with graphene oxide (GO) was presented in this paper. The hybrid composites were prepared by the vacuum infiltration hot pressing system (VIHPS). The macroscopic appearance of these composites was desirable, and their microstructure was satisfactory. According to the test results, with the content of basalt fiber decreased, the shape fixation ratio decreased, while the shape recovery ratio and shape recovery force all increased. The basalt fiber composite with 6 layers basalt fiber (B6) had a maximum shape fixation ratio of 94.94%, a minimum shape recovery ratio of 85.52%, and a minimum recovery force of 1.36 N. Compared with B6, the shape fixation ratio of the carbon fiber composite with 6 layers carbon fiber (C6) decreased by 10.43%, which was 84.51%. The shape recovery ratio and shape recovery force were increased by 9.60% and 3.31 times, and their values were 95.12% and 5.86 N, respectively. In addition, according to the temperature-recovery force curves, it was found that the seven groups of composites all reached their maximum shape recovery force when the temperature was about 110 °C. When the temperature was between 50 °C and 80 °C, the recovery force of the composite increased greatly, and then, the recovery force increased slightly. However, when the temperature was above the glass transition temperature (Tg), the recovery force gradually decreased.