ABSTRACT

This chapter focuses on the alumina-filled rubber composites and their most targeted applications. Numerous researchers are focusing on the potential of alumina-filled rubber composites as materials for electronic packaging, thermal interface materials, flexible microwave materials and composite insulators in power transmission and distribution lines. Many attempts are carried out to improve the functional properties of the composites, such as dielectric properties, electrical conductivity and thermal conductivity. There are various matrices utilized for the development of composites for these applications and more, including either natural and synthetic rubbers or elastomers. This chapter only focuses on composites made from natural rubber, silicone rubber, epoxidized natural rubber and ethylene propylene diene monomer and their mechanical properties based on various effects. The correlation between mechanical properties with their morphological properties (fillers distribution and dispersion) and the effect of alumina loading on processability is also briefly discussed.