Surface energetics, adhesion, and adhesive joints. IV. Joints between epoxy adhesives and chlorotrifluoroethylene copolymer and terpolymer (aclar)

It is shown that structural joints can be formed between conventional epoxy adhesives and copolymer and terpolymer of chlorotrifluoroethylene, at temperatures well below the softening points of these polymers, without their prior surface treatment. An explanation of this low temperature behavior is given in terms of the surface tension of the adhesive, surface roughness, and the micro‐Brownian motion of the polymers associated with the glass transition.