This research was done to determine the properties of polycaprolactone (PCL) Polyaniline (PANI) composites. The effect of carbon black (CB) content and silane coupling agent, 3-aminopropyltriethoxysilane (3-APE) on mechanical properties, thermal properties and morphology were also studied. The PCL/P ANI composites were prepared by using Brabender
Plastograph mixer EC-PLUS at temperature 60 °C and rotor speed 50 rpm for five minutes. Results showed that the increasing of p ANI content have decreased the tensile strength and elongation at break, but increased the modulus elasticity and thermal stability of PCL/P ANI composites. The lower volume resistivity and higher conductivity is shown at 3 Php of PANI content. The addition of carbon black (CB) into PC LIP ANI composites exhibited similar tendency as neat PCLIP ANI composites, where tensile strength and elongation at break decreased but modulus of elasticity increased. The thermal properties indicate that the increasing of CB content increased the thermal stability of PCL/P ANI/CB composites. However, treatment of CB with 3-APE has significant effect in composites. The treated PC LIP ANI/CB composites have higher tensile strength, elongation at break and thermal stability but lower modulus of elasticity compared untreated composites. This result was supported by SEM study, where the silane coupling agent has enhanced interfacial adhesion between CB and PC LIP ANI composites.
