West Riding Blog

Influence of solvent additions

Influence of solvent additions on the application of the paint formulations

Xiaoxia Duan, University of Leeds and Austin Hayes Ltd


Current commercially available two-part epoxy coating formulations can be formulated in such a way that they are fit for long term exposure when they are subjected to sub-sea conditions. These complex formulations are designed with this quality as the major requirement. A number of materials including aromatic hydrocarbons such as toluene or xylene, are used as non-reactive diluents, classified as additives and modifiers for epoxy resins, and employed as a means of reducing viscosity to aid coating application. This presentation relates to an investigation of the changes that arise when such formulations are subjected to solvent additions to the original formulation process, as recommended by the paint manufacturer.

A brief review of diluents for epoxy resins, will be followed by a consideration of investigations that have been undertaken relating to aspects of the rheological properties and the thermal properties/characteristics of current “raw material” formulated liquid coatings and of their solid/cured equivalents. One objective of this work is to collate relevant scientific factors and data, that when appropriately interpreted could assist in the development of efficient coating application procedures whilst ensuring the efficiency of existing commercial coatings action in protection.


Ms Xiaoxia Duan is a Chemist employed by University of Leeds and currently working for Austin Hayes Ltd. She received her MEng degree in Engineering and Material Sciences from Queen Mary College, University of London, UK in 2009. She obtained her PhD degree in Engineering from The University of Durham, UK in 2014. Her research interests include thin films application and optimisation techniques, as well as their uses.

x.duan@leeds.ac.uk; Julia.duan@austinhayes.com


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