Abstract

Surface preparation or treatment for adhesion is defined as one or a series of operations including cleaning, removal of loose material, and physical and/or chemical modification of a surface to which an adhesive is applied for the purpose of bonding. In plastics bonding, surface preparation is aimed at increasing the surface polarity, improving surface wettability, and creating sites for adhesive. In summary, the objective of any surface treatment method is to enhance the adhesive bond strength and durability. The basic requirements for a good adhesive bond are the following: proper choice of adhesive; good joint design; cleanliness of surfaces; wetting of adherends (surfaces that are to be bonded together) by the adhesive; and proper adhesive bonding process (solidification and cure).

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