Читать книгу Surface Science and Adhesion in Cosmetics - Группа авторов - Страница 44

Polyethylene wax with low Mw of 500 and T_m= 83°C- 90°C was used as the only wax in the study of lipsticks. The common esters and hydrocarbon oils used in lipstick formulations were selected with various viscosities and polarities (in terms of permittivity) (Table 2.6). PE waxes in a single oil or in binary oil blends of hydrogenated polyisobutene (HPIB) with low and high viscosities (ɳ=14.8 mPa.s and 89960 mPa.s) were prepared by melting the waxes in oils at high temperature.

Table 2.6 Some selective non-polar HPIB and polar oils with low and high viscosities.