Electrical and Mechanical Properties of Carbon Black -Filled Poly (Styrene-Co-Butyl Acrylate) Latex Reinforced Polyester Nonwoven Composites
The main goal of the present research work was to fabricate lightweight nonwoven fabric impregnated composites for antistatic applications. Composites were fabricated by impregnating polyester nonwoven fabric with aqueous carbon black (CB) filled poly (styrene-co-butyl acrylate) latex. The effect of the amount of CB on the mechanical and electrical properties has been studied. Tensile strength, stitch tear strength and surface hardness were reduced by an increase in the wt.% of CB. The percentage elongation of the composites increased drastically because of the presence of diethylene glycol plasticiser in the CB dispersion. The dielectric constant, dissipation factor and loss factor of the composites increased with increasing wt.% of CB and decreased with increasing frequency. The reduction in dielectric properties with increasing frequency could be due to the delocalisation of charge carriers.