Özet:

Lately, biopolymers have been attracted a lot of interest. One of the most used biopolymers is cellulose. Cellulose, consisting of B-1,4 anhydroglucose monomer units, is divided into three main types which are fibrillated cellulose, crystalline cellulose, and bacterial cellulose. Of them, fibrillated cellulose having nanoscale has attracted much interest as it exhibits a higher aspect ratio, more flexibility, and stronger interfacial adhesion than other types. Thus, they have been used in many applications ranging from 3D bioprinting to electronic film. In the composite industry, most used matrix types are unsaturated polyesters (UPs) for obtaining thermosetting materials. However, there has been some environmental concern regarding UP composites due to the fact that obtaining from oil sources. In the study, CNF-based polyester composites were manufactured, after followed production of CNF from national sources. For that purpose, ortho phthalic based unsaturated polyester resin was mixed with CNF in different ratio (0.5%, 1%, and 1.5%). Afterward, chemical and mechanical properties were then investigated with FT-IR and Universal Testing Machine. It was determined that CNF has influenced tensile strength in the composites. It has been thought that CNF based composites revealed various properties for use in the applications.

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