Interplay between Network Formation and Mechanical Properties of Epoxy/silica Adhesives

Epoxy-based adhesives reinforced with silica filler (20, 40 and 60 phr) were prepared and their lap-joint bonding when used to adhere carbon fiber composite with steel was perceived. Optical microscopy (OM) was used to characterize state of dispersion of silica and network formation in the host matrix. Lap shear test was an indication for a considerable improvement of about 20%, compared to unfilled epoxy/hardener systems, for composites containing 60 phr of silica. The results indicated that network formation strongly affects mechanical properties of epoxy/silica nanocomposite adhesive

کلیدواژه ها:

Epoxy adhesive ، Silica ، Network formation ، Lap shear strength ، Optical microscopy