Improvement of Polymer/Metal Adhesion Using Anodizing Treatment and 3D Printing Process.

ABSTRACT: Joining materials with different physicochemical properties presents significant challenges. This study investigates the one-step anodization of aluminum in a mixed phosphoric acid and hydrogen peroxide solution, followed by the direct injection molding of polymer resin to enhance joint properties. The anodizing treatment is performed at constant electrical current with phosphoric acid solutions of various concentrations. Phosphoric acid anodizing enables the formation of 3D channeling pore structure with micropits and uniform nanopores on the aluminum surface. Hydrogen peroxide acts as an oxidizing agent and promotes the dissolution reaction, thereby increasing the size of the nanopores. Larger pores facilitated the penetration of polymer resin into the aluminum oxide layer during injecti

SUBMITTER: Ryu SW 

PROVIDER: S-EPMC11820388 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature