Conducting Polymers as Additives for Paints and Primers

G.M. Newbloom, V. Hrechka, D.C. Pozzo
PolyDrop, LLC, US

Keywords: conjugated, polymer, conductive, transparent, additive, paint, primer, coating, p-static, nanostructured, composite, assembly

Summary:

We present the development of a novel conjugated polymer based additive for use in p-static charge dissipation coatings. Through self-assembly and molecular doping we demonstrate that the conductivity of the pure additive can be enhanced from 10^-9 S/cm to 10^-4 S/cm. When dispersed in traditional, non-conductive paints and primers to form a composite film we meet or exceed requirements for p-static charge dissipation coatings (10^-9 to 10^-6 S/cm). This poster will provide nanoscale structural information gathered from small angle neutron scattering (SANS) and transmission electron microscopy (TEM). Rheology is utilized to demonstrate the minimal impact of dispersed additive (up to 5 wt%) and UV-vis spectroscopy is utilized to characterize the transparency of the composite films. All of this information is then correlated to film quality and surface resistivity in order to optimize the properties of the additive. This innovation is particularly relevant to the development of coatings that reduce the weight of metallic mesh for static dissipation in composite fiber reinforced composite (CFRC) applications.