renewable resources, biodegradation, ageing, polylactide, natural rubber
In our research, we reported on biodegradable composites exhibiting specificity properties by melt blending of polylactide (PLA), one of the commercially available biodegradable material, and epoxidized natural rubber (ENR). Blending of ENR with different types of polymers will also exhibit different properties of the blends with respect to the concentration of each polymers, concentration and types of cross-linking agents. Blending hydrophilic natural polymers and aliphatic polyesters is of significant interest, since it could lead to the development of a new range of biodegradable polymeric materials. Our work concerns studies on new non-sulphur cross-linking system for natural composites. In our studies, we propose the use of natural proecological substances, such as aminoacids and fatty acids to cross-link composites ENR/PLA. As a filler, pro-ecological cellulose as well as silica with OH groups on the surface has been used. The initial results of the study show that elastomeric vulcanizate filled with cellulose has higher elongation at break (EB) in comparison with the sample filled with silica.The final aim in the present study is to use ENR and poly(lactide) to design composite from renewable resources with controlled degradation. This study was supported by Ministry of Science of Higher Education IP 2011 034171.