Laser surface modification of polymers to enhance adhesion part ii - peek, apc-2, lcp and pa

摘要

Excimer lasers have been employed to modify the surfaces of a range of polymers to enhance adhesion. Considerable increases in joint strength were achieved as a result of laser treatment. Many lap shear joints, exposed to hot/wet environments, provided high retention of joint strength and durability. Laser-treated PEEK and APC-2 joints exposed at 50 deg C and 96percentRH for several weeks, showed excellent resistance to ageing.