BONDING METHOD FOR FIBER REINFORCED PLASTIC BASE OR ENGINEERING PLASTIC BASE

摘要

PURPOSE:To upgrade shearing strength by inserting a spacer into a bonding layer of a fiber reinforced plastic base, performing pressure bonding and specifying the thickness of the bonding layer after curing of a bonding adhesive. CONSTITUTION:When an FRP base or an engineering plastic base is bonded with a bonding adhesive, a spacer is inserted into a bonding layer, pressure bonding is performed and the thickness of the adhered layer after curing the adhesive agent is made in the range of 0.05mm-0.3mm to obtain the maximum shearing strength. In that case, as resin as a main component of the bonding adhesive, for example, bisphenol A type epoxy resin, is used and as a curing agent, modified polyamideamine is used, and the adding quantity of glass beads as a spacer is, for example, 10:1 weight ratio to the bonding adhesive. A glass bead layer is formed into one layer by the process. However, in the case that the grain diameter of glass beads is small, the weight ratio is made 100:1 to form one layer of glass beads.