Abstract
Polyethylene surface in water(H2O) ambience was photochemically modified to be hydrophilic using an ArF excimer laser light. The hydrogen atoms of the surface, were pulled out by the hydrogen atoms which were photodissociated from H2O and replaced with the OH radicals which were also photodissociated. The substitution of OH radicals was confirmed by the XPS and the contact angle measurement. Also, chemical bonding of the surface with epoxy adhesive was performed to obtain a shearing tensile strength of 9.5kgf/cm2.