METHOD FOR BONDING POLYMER

摘要

PURPOSE: To improve the peel strength and promote the adhesion between the surfaces of polymers by treating at least, the surface of one of the polymers with water vapor plasma. CONSTITUTION: The peel strength is improved by treating the surface of at least, one of the polymer layers with water vapor plasma prior to the arrangement of a second polymer layer on a first polymer layer. A gas plasma is formed by the action of an electric field upon gas, and for example, the electric field is generated by a wireless frequency generator. That is, the electric field required for an action on the gas is applied in order to generate radical species mainly by an electron-induced ionization. And these species interact with the outermost atom of a polymer material to make a surface which bonds with a layer to be bonded next more firmly than before.