Fracture mechanics on polyethylene/polybutene-1 peel films

The peel properties were characterized in dependence on the iPB-1 content as well as on the peel angle. The T-peel test revealed an exponential decrease of the adhesive energy release rate with increasing iPB-1 content. The fixed arm peel test investigations revealed two ranges, the interlaminar and the translaminar crack propagation ranges, which could only be characterized using fracture mechanics parameters.