Abstract

AbstractDouble-layered films, consisting of an LDPE (low density polyethylene) layer coated with PCL (polycaprolactone) layer filled with inorganic/organic composites have been manufactured. The intention was to obtain the packaging material with multiple potential uses. As an organic compound in the composites, nanocellulose (NC) and maleic anhydride modified nanocelulose (NCMA) has been used. Inorganic/organic composites have been prepared by deposition of copper oxides on the surface of cellulose nanocrystals. The composites have been drayed in two ways: under vacuum and by freeze-drying (lyophilisation). The prepared composites have been added as filler into PCL. Thereafter, PCL/ copper oxide/nanocellulose has been applied as a coating on the surface of the LDPE foil in order to obtain double layered hybrid film as a potential packaging material. The influence of filler type and content, NC modification and copper oxide/nanocellulose composite drying procedure on structural and mechanical properties of hybrid double layered films has been investigated.KeywordsPackagingLow density polyethyleneNanocellulose

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