Surface treatment method for improving bonding performance ofcomposite material

The invention provides a surface treatment method for improving bonding performance of a composite material.The surface treatment method comprises the steps thatfirst, an interface adhesive layer (1)is added between a surface to be bonded of a composite material preform (2) and a strippable cloth (3),after encapsulation and curing, the strippable cloth (3) is torn off, a very thin layer on the interface adhesive layer (1) is retained on the surface of a composite materialpart (4) to form a thin adhesive layer (5),the thin adhesive layer (5) can reflect a rough shape formed by the strippable cloth (3) on the surface to be bonded of the composite material part (4), increasesa bonding area, has also good compatibility and reactivity with the composite material and a bonding adhesive film ofthe composite material, can be correspondingly and fully soaked with a matrix of the composite material part (4) and the bonding adhesive film (6), and participates in curing reaction, and high interface bonding of chemical bo