CALCULATING DIFFUSION PARAMETERS FOR A CORROSIVE MEDIUM ACTING ON POLYMER MATERIALS

摘要

Data are used on the structure defects in polymer materials to consider the motion of a viscous liquid in a crack as the motion in a planar hydrodynamic flow from simulation of mathematical expressions for the diffusion parameters for the action of a corrosive medium on a polymer material: time spent in the corrosive medium and depth of the processed material layer. An expression is derived from which one can estimate the current concentration of the medium. It is established mathematically that the distribution of the medium concentration in the thickness of the material follows an exponential law.