Characterization of elastomer composite morphology, mainly phase morphology, cure state variations, polymer-filler interactions and filler phase distribution are critical in establishing the morphology-property relationships for composites consisting of elastomeric composites. This work deals with preparation of elastomeric composites filled with biopolymer. Natural rubber (NR) was filled with cellulose (CEL) in amounts 30 – 55 phr. Filler/plasticizer partition in elastomeric composites, compatibility and interfacial adhesions between matrix and filler can be established. Application of atomic force microscopy (AFM) to design better elastomer composites is present (3D surface topography). Dynamic mechanical properties of NR/CEL composites were measured in the temperature range from –95 °C to 100 °C. The properties were compared with those from materials of the same composition but without filler (CEL). The laboratory tests show differences in two selected moduli Elastic and Loss. Glass transition temperature changes were determined at the peak maximum of Tan Delta (Tan δmax).

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