Interface and adhesion of polymer materials

The interface and adhesion properties of polymer materials are crucial for the overall performance of composites. Surface pretreatment, including cleaning, roughening, and chemical treatment methods, aims to enhance adhesion on polymer surfaces. Adhesion mechanisms encompass mechanical interlocking, chemical bonding, and diffusion. Testing methods for adhesion performance include peel tests, shear tests, and tensile lap-shear tests. Additionally, surface energy and wettability are key factors affecting adhesion, controllable through contact angle measurement and surface modification techniques.

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