In a cosmetic factory, it is desired to produce a hand cream by mixing oil phase (olive oil and oil soluble surfactant, Brij92) and water phase, as given in the Fig. Q2.1. The resultant mixture is an emulsion, where oil phase is dispersed within continuous water phase, in form of very tiny drops.For this mixing system,a) Find the density and viscosity of the resultant mixture. [5 pts]b) The characteristic average drop size of dispersed phase is measured as 1 um in the resultant emulsion. What will be the required minimum surface energy (in Joule) to produce 100 dm³ emulsion in this system, if the interfacial tension between two phases is 1 mN/m by the addition of Brij92? [5 pts]
Answers
Answer:
Mark my answer brainliest give me hearts and do follow
Explanation:
The effect of surfactant on the rheological properties of some cream formulations was studied. Two surfactants from two different series were combined to determine the combination which yielded the most viscoelastic structure for creams. The surfactants were the soybean derivatives soya sterol, polyethylene glycol 10 soya sterol and polyethylene glycol 25 soya sterol and the sorbitol derivatives sorbitan monooleate and sorbitan trioleate. The rheological properties of the creams were studied using oscillation stress sweep, oscillation frequency sweep and viscosity tests. Droplet size distribution and conductivity of the creams were also determined. The combination polyethylene glycol 10 soya sterol and sorbitan trioleate yielded the most viscoelastic structure with linearly viscoelastic behaviour.
Answer:
kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk