Abstract
Experimental study on the bending characteristics of dry and wet state (100 °C boiled for 2 hours) in the same layering method, carbon (T700 unidirectional cloth)/glass (EWR800 multiaxial cloth) interlaminar hybrid composites with different mixing ratios. At the same time, the effects of 430LV vinyl resin and QC-350 epoxy resin on the bending properties of hybrid composites were compared and analyzed. The test results show that, In the same mixing ratio and the same test condition, QC-350 epoxy resin corresponding to the hybrid sample bending performance is better than 430LV vinyl resin; the wet bending strength and modulus of hybrid bending specimens are lower than those of dry bending specimens in varying degrees. The flexural strength and modulus of hybrid specimens increase with the increase of carbon fiber volume fraction. And as the volume of carbon fiber in the sample increases, the flexural strength and modulus of the hybrid sample increase to varying degrees. In addition, the results also show that the bending strength and modulus of hybrid bending specimens without post-curing treatment decrease in varying degrees at the same mixing ratio, whether in dry or wet state.
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