| 摘要 |
<p>A method for oxidizing polymeric surfaces to render them hydrophilic and more amenable to wetting is disclosed. The method comprises reacting the surface of a hydrophobic polymer with a peracid, especially Caro's acid, under conditions effective to render the surface more hydrophilic. Although strong oxidants can easily carbonize or discolor the surface of organic polymers, polymers can be rendered more hydrophilic without these problems when process conditions are carefully controlled. Specifically, treatment of the polymer surface with a peracid such as Caro's acid requires judicious selection of oxidation temperature, acid concentration, and peroxide content to achieve reaction rates that provide the desired level of hydrophilicity without charring or otherwise damaging the polymer.</p> |
