دراسة تأثير رقم معامل التوازن الهيدروفيلي الهيدروفوبي HLB لعامل الاستحلاب في عملية الاستحلاب بالانقلاب المحرّض للطور

الملخص EN

This paper studied preparation of polymeric emulsions by flow induced phase inversion emulsiflcation of (ethylene-vinyl acetate) copolymer using seven surfactants with different numbers of the Hydrophilic-Lipophilic Balance (HLB) at constant conditions of temperature, mixing speed, concentration of surfactant and molecular weight.

The emulsiflcation process was carried out using a twin screw brabender at melting temperature of the polymer.

One phase inversion was found for all prepared emulsions.

When HLB number increased, the particle size was so increased too.

But the emulsiflcation time wasn’t affected i.e.

the increasing of HLB number has no significant effect on the emulsiflcation time.