The Canadian producer Erie Powder Coatings has created new coatings with graphene nanotubes for EMI and RFI applications.
Many types of equipment might be affected by electromagnetic interference (EMI) and radio frequency interference (RFI), so Erie Powder Coatings has developed new powder coatings with graphene nanotubes that demonstrate both conductive and static dissipative properties, with resistance ranging from 103
Ω/sq to 109 Ω/sq.
The graphene nanotubes provided by OCSiAl’s TUBALL, introduced at the premixing stage, allow also environmental compliance. The Initial laboratory tests showed positive results in combining the targeted conductivity with aesthetic.
“Traditionally formulated high conductivity powder systems rely on conductive carbon black, which limits pigmentation options. By switching to a graphene nanotube system requiring lower dosage levels, a significantly wider range of color options are available,” stated Tyler Siska, Erie Powder Coatings Research & Development Manager.
The company uses a standard powder coating production extrusion technology in order to incorporate the nanotubes with no special adaptation. Because of their unique morphology, nanotubes are able build a uniform conductive, reinforcing network inside the material with no increase in melt viscosity. Moreover, the unmatched ultra-low working dosage allows producers to expand the range of product colors and gives greater flexibility in the final formulation.
“Due to the ultra-low working dosages of graphene nanotubes that start from 0.01%, our clients globally recognize the excellent price-per-performance ratio of TUBALL nanotubes, along with nanotubes’ better environmental compliance and the full range of properties they enable in coatings,” commented Sergey Zasukhin, OCSiAl Business Development Director for Canada, Mexico, Central and South Americas.