Wp. Zhao et al., Processing and fracture behavior of a polyethylene-based thermoplastic adhesive and a glass-fiber filled epoxy adhesive, INT J ADHES, 20(5), 2000, pp. 409-413
The processing and fracture performance of a high-density polyethylene (HDP
E)-based thermoplastic adhesive and an epoxy-based thermosetting adhesive w
ith a glass fiber additive were studied. Differential scanning calorimetry
(DSC) was used to characterize the processing parameters. Double cantilever
beam (DCB) fracture testing and butt-joint tensile testing were used to ch
aracterize the adhesive joint fracture toughness and strength. Although the
thermoplastic adhesive had low strength, it exhibited high DCB fracture to
ughness because of a large plastic deformation zone in the fracture process
. The fiber additive in the thermosetting adhesive stabilized the DCB fract
ure. Loading speed, adhesive thickness, pre-crack length, and curing temper
ature were all considered in the study. (C) 2000 Elsevier Science Ltd. All
rights reserved.