Interaction of Sludge Particles and Wear Particles of Polishing Powder in the Process of Polishing of Polymeric Optical Materials

As a result of studying the laws of interaction of sludge particles and polishing powder wear particles during polishing of polystyrene, polymethyl methacrylate, and polyallyldiglycocarbonate with use of dispersed micro- and nanopowder systems, it is found that the total number of sludge nanoparticles and wear powder nanoparticles of tools exceeds the number of polishing powder particles and the total volume of the former is much smaller than the volume of the contact zone. It is shown that the scattering of sludge particles on the wear particles of the polishing powder occurs at angles of 90° to 160°. The effective differential cross section of nanoparticle scattering is in the range of 0.3–4.4 Tb. The maximum value of the scattering angle and the minimum value of the effective differential scattering cross section, which are observed when polishing polystyrene using a dispersed system based on cerium dioxide, indicate the highest probability of plaque formation from nanoparticles of wear polishing powder on the treated surface.