Corona-discharge treatment of polyetheretherketone (PEEK) for adhesive bonding

摘要

Poly(etheretherketone) (PEEK) has been treated by corona-discharge in air with added oxygen, argon, ammonia or sulfur dioxide. The observed effect is to almost double the strength of lap joints and increase surface polarity. Treated surfaces have been stored for 90 days without significant loss of joint strength. The improvements brought about by corona-treatments are not removed by wiping the surface with solvents.