| Abstract
| - The contribution of adsorption in a contact zone to adhesion between two nonporous bodies is discussedin the framework of the theory of adsorption in micropores. A contact region is presented as a collectionof slitlike micropores and a separation of bodies from a contact to infinity is considered as dismantlingfilled pores with a formation of two nonporous surfaces instead of each pore destroyed. The behaviorpattern of adsorbate in the course of pore destroying depends on dimensions of liquid islands inside pores,temperature and adsorbate partial pressure. Due to overlapping of wall potentials, adsorption in a microporeat low pressures exceeds that on both separated surfaces. In this case, adsorbate evaporates from microporesduring the separation and the energy of desorption contributes to the adhesion energy. The system consistingof carbon nanoparticles and trace amounts of polyaromatic compounds is discussed as an example of suchbehavior pattern. The random walk of nanoparticles in a gas phase or colloid particles in a solution maybring them together at a distance, which is equal to the separation between narrow micropore walls. Onemay see this phenomenon as vagabond micropore formations. Since a filling pressure for micropores isseveral orders of magnitude less than that for a nonporous surface, a micropore is not in equilibrium withthe environment and, if there is an appropriate adsorbate, begins to adsorb at a low partial pressure, givingrise to concentrating contamination and a following particle aggregation.
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