Method for preparation of slow setting epoxy adhesives by multi reinforcing effects of micro and nano fibers, and slow setting epoxy adhesives thereby

摘要

PURPOSE: A manufacturing method of an ambient-temperature curable epoxy adhesive is provided to manufacture epoxy composite material having improved adhesion, and capable of maintaining adhesion even in the change of temperature and moisture according to the change of seasons, by mixing polyvinylalcohol fibers and gas-phase growth carbon nanotubes to an epoxy resin. CONSTITUTION: A manufacturing method of an ambient-temperature curable epoxy adhesive comprises a step of mixing polyvinylalcohol fiber and a hardener to an epoxy resin. The weight ratio of the polyvinylalcohol fiber against the epoxy composite resin is 0.35-1.39 weight%. The weight ratio of the epoxy resin and the hardener is 2-3:1. The epoxy resin, the polyvinylalcohol fiber, and the hardener are mixed by physical mixing apparatus. The epoxy composite material comprises the epoxy resin, the polyvinylalcohol fiber, and the hardener.