Due to the high temperature carbonization treatment in the preparation process,the surface of carbon fiber is chemically inert,which has a negative impact on the interface bonding of the composite.Surface chemical grafting is a method of inserting reactive groups on the surface of carbon fibers by chemical methods,thereby improving the interface performance between fibers and resin.This method has the advantages of controllable graft and simple reaction,and has good effect on improving the interface bonding ability and mechanical properties of composite.The influence of chemical grafting on the physical and chemical characteristics of carbon fiber surface,the interface of composite and its mechanical properties were reviewed.
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