HEAT- AND CORROSION-RESISTANT ADHESIVE COMPOSITION

摘要

PURPOSE:To provide an adhesive composition having excellent resistance to heat and corrosion and suitable for joining an FRP pipe to an FRP joint, prepared by mixing talc into a vinyl ester resin. CONSTITUTION:The adhesive composition is prepared by mixing about 50- 70wt% talc (3MgO.4SiO2.H2O) into a vinyl ester resin. Addition of talc imparts an optimum viscosity as adhesive to the low viscosity vinyl ester resin, reduces shrinkage factor of the resin in curing and prevents delamination caused by shear stress in bonding. The adhesive makes it possible to join FRP joints to FRP pipes for high-temperature water and acid and alkali solutions in a simple process without the need of locking them with bolt and nut by use of a flange.