VADEMECOM: An Innovative Method for Characterizing Polymer Surfaces
Meeting the challenges of polymer surface characterisation
Current tools, such as nano-indentation, cannot accurately analyse polymers, whose mechanical properties change with temperature or humidity. Yet these materials are everywhere in our daily lives, from anti-scratch coatings on eyeglasses to protective coatings. The VADEMECOM project, led by Christian Gauthier at the Institut Charles Sadron (ICS) with the support of Carnot MICA, addresses a key challenge: the lack of analysis methods suited to polymer surfaces.
The problem is clear: manufacturers need to characterise thin polymer layers, used in many products such as paints, varnishes and technical coatings. However, existing models, based on the behaviour of metals, do not apply to polymers. This leads to imprecise measurements, which limit the development of innovative, high-performance products in sectors where these materials play a central role.
Developing a method suited to polymer behaviour
The ICS team therefore designed a dedicated method, based on simulations and laboratory testing. It analyses polymers by taking their real behaviour into account, delivering more reliable results than conventional tools. Unlike current solutions, this approach provides precise measurements, even when the material’s properties vary with external conditions. This methodology paves the way for a better understanding of the mechanical properties of polymer surfaces, essential to the development of durable, high-performance products.
A validated solution for industrial applications
A numerical model was developed, then validated through experimental testing. The first results confirm the relevance of the method, which is now operational and ready for industrial deployment. This work now gives manufacturers access to reliable data to optimise their manufacturing processes.
Opening up new perspectives for industry
VADEMECOM thus opens up new perspectives for industrial sectors, by enabling the precise characterisation of polymer surfaces. In the longer term, the project could not only improve the quality of existing products, but also foster the emergence of new applications, while strengthening the expertise of ICS and Carnot MICA in this field.
Partner: Institut Charles Sadron (ICS) — Christian Gauthier