Team Discovers Simple Method Of Bonding Polymers to Steel

January 4, 2023 | Manufacturing
University of Tokyo

Researchers at The University of Tokyo demonstrated how to bond a polymer to galvanized steel simply by pre-treating the steel with an acid wash and dipping it in hot water.

The wash strips the outer layer on the zinc coating of the steel which allows the water to form nanoscale needle structures on the surface. When the polymer was injection molded into the metal it filled in the tiny gaps and ridges between the structures creating very strong mechanical linkages.