Effect of electrophoretic baking on mechanical properties of EP/CF and EP/CF/GF composites
A series of CFRP with different laminating modes was prepared through VARTM,which included the EP/CF and EP/CF/GF composites.Their mechanical properties before and after electrophoretic baking were compared,and their failure mechanism was explored.The results indicated that the[±45 °]laminating method and the addition of GF mat increased the permeability of the composite system significantly.After electrophoretic baking,the tensile strength of the CF[0/90 °],CF[±45 °],and CF/GF[±45 °]composites decreased by 15.65％,12.05％,and 6.77％,respec-tively,and their modulus decreased by 9.08％,16.39％,and 10.04％,respectively.The tensile strength and modu-lus of the CF/GF[0/90 °]composite increased by 7.74％and 6.95％,respectively.According to the flexural perfor-mance after electrophoretic baking,the flexural strength of the CF[0/90 °],CF/GF[0/90°],CF[±45 °],and CF/GF[±45 °]composites decreased by 7.62％,8.23％,15.89％,and 48.39％,respectively,and their modulus de-creased by 9.23％,3.69％,17.85％,and 34.38％,respectively.There was little effect of electrophoretic baking on the compression performance of these four composite systems.After electrophoretic baking,the energy storage modulus and loss modulus of the CF[0/90 °]and CF[±45 °]composites increased,whereas the CF/GF[0/90 °]and CF/GF[±45 °]composites showed a decrease in these two moduli.
carbon fiber reinforced plasticvacuum-assisted resin transfer moldingpermeabilityelectrophoretic baking
万方数据
维普
