Thermal and mechanical characterization of complex electrospun systems based on polycaprolactone and gelatin

Abstract Nowadays, continuous development of soft-electronics and wearable devices opens to the needs stretchable flexible materials able interface with human body. In this scenario, biopolymers are particularly intriguing given their biocompatibility biodegradability. For application in specific field material requires several properties such as biological mechanical performance thermal stability. study, membranes fulfill some these requirements described. The electrospun membranes, composed a blend polycaprolactone (PCL) gelatin (GN), have been produced various configurations. results show how or coaxial systems different effects on both interactions between polymers properties. An important result chosen experimental conditions is narrow dimensional distribution nanofiber diameters constituting membranes. Thermal tests evidenced that, by properly choosing composition method electrospinning process, capable withstanding high strain values before failure can be obtained. particular, optimizing process using PCL/GN mass ratio 80/20, it possible increase stability up 310 °C confer sample ability reach percentage 350%.