A constituent society of the American Coatings Association (ACA)

The effect of microfibrillated cellulose on rheological and film properties of waterborne coatings with Otto Soidinsalo of Borregaard

When:
December 14, 2021 all-day
2021-12-14T00:00:00-08:00
2021-12-15T00:00:00-08:00
Contact:
Ema Hoxha

There is a growing interest to move towards waterborne systems in the coatings industry. However, the change is not always straightforward and often new technologies are required to obtain the same performance as with solvent borne systems. Typical challenges related with the waterborne coatings is mud-cracking and open time. Waterborne coatings tend to dry significantly faster than their solvent borne counterparts and suffer from skinning, often leading to mud-cracking.

 

Microfibrillated cellulose (MFC) is a new, a value-added and multifunctional product made of cellulose, consists of fibrils with lateral dimensions in the nanoscale and lengths up to micron scale. Its unique combination of characteristics from water soluble polymers and insoluble fibers gives a versatile and efficient alternative to technologies currently available. MFC secures high viscosity at rest, giving good stability, as well as offering shear thinning behavior and rapid viscosity build-up, which prevents sag during application. The high inertness, compatibility and chemical stability of MFC opens up new possibilities for waterborne paints and coatings, especially for the more demanding formulations.

 

The will demonstrate how MFC can solve your challenges regarding open time and mud cracking combined with excellent spray properties.