The 21st century is witnessing a return to green polymers made from renewable raw
materials due to crude oil shortage and to ecological reasons. The main polymers meeting
such conditions include aliphatic polyesters or biopolymers, the interest in which has been
increasing over the last decade. The aim of our study was to obtain pro-ecological
composites with increased resistance to aging using a biopolymer, epoxidized natural
rubber (ENR) and polyester polycaprolactone (PCL). To improve the resistance of these
composites to aging, we used natural anti-aging substances, mainly flavonoids and amino
acids. After simulating climatic, UV, and thermo-oxidative conditions, we assessed the
effect of the antioxidants used on the degradation capability of ENR/PCL composites. Based
on the tensile strength test, cross-link density and calorimetric measurements, we
observed a considerable increase in the aging resistance of ENR/PCL composites. At the
same time, the ENR/PCL composites showed a high susceptibility to biodegradation by
microorganisms, which allowed us to obtain polymeric products with controlled
degradation capabilities.