METHOD OF SURFACE TREATMENT TO ENHANCE THE ADHESION OF POLYOLEFIN RESIN

摘要

Disclosed is a method for increasing the adhesion of polyolefin resin. In general, polyolefin resin such as polypropylene or polyethylene takes on non-polarity and thus cannot confer strong adhesion when they are subjected to a bonding. Therefore, the adhesion of polyolefin resin to a substrate has been enhanced by means of physical treatment of the surface of a substrate by rubbing with sandpaper or by means of chemical treatment of the surface. These methods of surface treatment, however, are largely limited to certain extent in improving the adhesion of polyolefin resin when conventional adhesives are used. However, the present invention, while still using the conventional adhesive, could improve the adhesion of a polyolefin resin to a non-polar substrate by using a method wherein the polyolefin resin is first treated with an isocyanuric acid compound followed by UV irradiation.