NANOPARTICLE-MODIFIED FLUOROPOLYMER COATINGS

摘要

A fluoropolymer coating that includes nanoparticles for providing the coating with improved release characteristics together with improved abrasion resistance. In one embodiment, the nanoparticles are silica particles that may be incorporated into the coating by adding colloidal silica to the liquid coating formulation that is applied to a substrate, typically over a primer, and then cured. After the coating is cured, the coating demonstrates enhanced release characteristics together with improved abrasion resistance. It has been unexpectedly observed that a combination of desired release characteristics and improved abrasion resistance is found when the average particle size of the nanoparticles is between 30 and 120 nm, with the abrasion resistance generally increasing with increasing particle size.