METHOD OF SUPERHYDROPHILIC MODIFICATION OF POLYVINYLIDENE FLUORIDE SURFACE

摘要

The present invention provides a method of modifying the surface of a PVDF to a superhydrophilic surface by irradiating a polyvinylidene fluoride surface with an activation beam having an ultra low energy of 10-90 eV and a high energy density of 0.5 mW / cm ² or more. In the present invention, the contact angle for distilled water is reduced at 61 ^o with little surface damage for a short time. Lowered to less than 2 ^o provides a method of modifying the PVDF surface to a superhydrophilic surface with a surface energy of at least 80 mN / m. The PVDF surface modified by the present invention has increased adhesion to metals, conductive polymers, transparent electrode materials, etc., so that the hydrophilization of the ultrafiltration membrane, the hydrogen ion conductive polyvinylidene fluorine resin membrane, and the transparent flexible speaker and the display and speaker integrated Flexible audio-video / audible display speakers, etc.;Ultra low energy activated beam, polyimide, polyvinylidene fluoride, piezoelectric material, contact angle, surface energy, adhesion, audio display, transparent flexible speaker