The Triboelectric Effect is created by placing two polymers with opposite dielectric properties in contact so that they exchange ions and create, once separated, a charge imbalance between the two. This ionic disequilibrium creates a strong electric field at the microscopic level of the filter media.
Because triboelectric charge exists at the microscopic level of filter media, its existence cannot be easily detected by instruments such as a voltage meter. However, the existence of static charge can be determined by measuring the media's increase in filtration efficiency, particularly for submicron particles. |