Good adhesion is generally required whenever a coating is applied to a surface. A clean surface and good wettability are needed for good adhesion.
Adhesion is the attraction between two dissimilar phases. It is commonly divided into mechanical interlocking and physical and chemical bonding.
Coatings are typically evaluated by methods such as laboratory drawdown. Contact angle measurement can provide a more quantitative approach.
While contact angle goniometry has been around for many years, we have recently developed a way to account for the underlying surface’s micro-scale roughness.
Marine mussels are unbeatable when it comes to underwater adhesive strategies. They can attach to virtually all surfaces, tenaciously sustaining their bonds in saltwater and turbulent wave-swept conditions.
Wood-plastic composites are relatively new materials as they started to emerge at the beginning of the 90’s. The most widespread use of WCPs is in outdoor decking but it is also used in railings and siding as well as park benches and indoor furniture.