Preliminary evaluation of the incorporation of cellulose nanofibers as reinforcement in waterborne wood coatings

The wood is exposed to possible damages caused by weather, requiring the application of a finishing coat provide extra protection. aim this work was evaluate influence addition microfibrillated cellulose in waterborne varnish on colorimetric parameters, wettability and finish characteristics products. Color evaluated with CM-5 spectrophotometer; surface analyzed contact angle measurement using drop shape analysis goniometer; abrasion, adhesion impact tests were performed quality coating. coating’s optical not affected cellulose. changes small, no statistical difference between treated plain that unbleached In variation during elapsed time, coating containing presented best results. results did show numerical after cellulose, but qualitatively better anchoring specimens. Therefore, use as reinforcement coatings has potential, different consistencies other properties are necessary.