HYDROPHILIC LIPOPHILIC BALANCE OF A SOLID

The characteristics of the hydrophilic - lipophilic balance (HLB) of a solid (contact angle, ratio of the heats of wetting by polar and apol ar liquids) and different modifications of the ratios of the energies of wetting (Gibbs energy of wetting) were analyzed. The HLB characteri stic, the ratio of the energy of wetting of a body by a polar and apol ar medium, is the most common and considers all types of interaction o f a solid with a medium. For macroscopic compact bodies, the HLB is ex pressed in terms of the surface tensions of liquids and the contact an gle, and for a microscopic (dispersed) phase, it is expressed in terms of the change in the energy in adsorption of vapors of liquids on a s olid adsorbent. The experimental curve of the type and stability of em ulsions stabilized with solid particles as a function of the energies of wetting and HLB was examined. The HLB determined chromatographicall y for powder of the sorbent Inerton AW are reported.