Process for producing microscreens from polyvinylidene fluoride

摘要

Heavy-ion bombardment of an extremely heat-resistant and chemically resistant plastic film of polyvinylidene fluoride, with subsequent etching, is used to produce microscreens. These microscreens are typical nuclear track filters with well-defined holes. The hole size may be optimally selected between 0.1 mu m and 50 mu m; the hole size depends on the etching conditions, in particular on the etching, and on the etching temperature. These nuclear trace filters of polyvinylidene fluoride are intended to be very useful in environmental protection under extreme conditions.