Investigation and Optimization of Adhesive Structure Formation on Shell Limestone Surfaces

The article is devoted to the study of the adhesive interaction of restorative compositions with shell limestone as a highly porous material of complex structure. The key physicochemical and mechanical factors determining adhesion are analyzed, including molecular forces, hydrogen bonds, electrostatic interactions, acid-base interactions, as well as the effect of humidity on adhesion. Elements of fractal geometry are used to describe the processes of adaptation of compositions to porous surfaces, a criterion of ideal adhesive contact is introduced. Models of structure formation are considered, including the Smoluchowski equation, diffusion-limited and cluster-cluster aggregation. It is shown how optimization of the restorative composition due to the selection of the necessary fractal parameters can improve its adhesive characteristics. Recommendations are given for the use of various methods for optimizing adhesion processes in restoration. It is also possible to use the obtained results in modern additive technologies.