Natural Polymer Additives for Strengthening Packaging Materials

Abstract

A natural polymeric material, cellulose nanofibrils (CNFs), that can replace structural additives made of synthetic polymers was studied and characterized. The use of CNFs as a structural additive and the effect of adding them on the basic mechanical parameters of laboratory samples of packaging materials (corrugated sheet, i.e., the intermediate layer of corrugated cardboard) were studied. Addition of a structural additive made of natural renewable raw material to the recycled paper composite for corrugation was shown to increase the key paper quality indicators.