Micromanipulation and Finite Element Analysis to Determine the Mechanical Strength of Perfume Microcapsules

Category
C&DP: Fragrances and Flavors
Year
2012
Authors
Ruben Mercadé-Prieto, Rachael Allen and Zhibing Zhang
Institutions
School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK
Summary

The mechanical property parameters of melamine formaldehyde microcapsules with a core of model perfume oil, including elastic modulus, elastic limit, yield stress, and the stress-strain relationship to rupture (failure, fracture or bursting), have been determined using micromanipulation compression between two parallel surfaces and finite element analysis (FEA). Such analysis allows the mechanical strength of microcapsules to be tailored to various controlled release applications via the use of different formulation and processing conditions.