Film formation via drying of personal care products

Lead Research Organisation: University of Cambridge
Department Name: Chemical Engineering and Biotechnology

Abstract

Investigating the properties of drying films. Ingredients such as polymers, particles and surfactants are used in many personal care products (e.g. skin creams, lip-stick, sunscreen) to deliver superior benefits. These materials are deposited on skin from a variety of different solvents, but the drying process which is critical for optimal film function is still poorlyunderstood. This proposal is aimed at an improved understanding of drying of product films on skin, and its effect on film structure and functional properties.

Publications

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Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/T517677/1 01/10/2019 30/09/2025
2269740 Studentship EP/T517677/1 01/10/2019 30/09/2023 Ahmed Othman
 
Description In thin films the state of the final coatings in solid substrates is important after depositing the materials on the surface. The state of the film usually required to be distributed uniformly on the substrate. An instability was noticed during the drying of polymer thin film/ droplets on solid substrate resulting in a finger-shaped state at the film boundaries. We found this instability is due to Marangoni flow which aid in the instant spreading of the film causing this issue in thin films and droplets.
Exploitation Route This can be used to avoid any instabilities in droplets for many application such as thin films applied on the skin or droplets used to coat photovoltaics.
Sectors Aerospace, Defence and Marine,Agriculture, Food and Drink,Energy,Healthcare,Manufacturing, including Industrial Biotechology