José Miguel Martín-Martínez
Full Professor, NOXUN Adhesives
Prof José Miguel Martín-Martínez is founder and head of the Adhesion and Adhesives Laboratory of the University of Alicante (Spain). Currently, he is a Consultant of Noxun Adhesives Company. He is Editor-in-Chief of Journal of Adhesion Science and Technology and Associate-editor of Rubber Chemistry and Technology. He is an expert on the synthesis, formulation and characterization of different adhesives and well-known specialist on Adhesion. He has imparted more than 400 talks at international conferences and has published about 300 papers in the Web of Science database.
From Flow to Function: Designing Hotmelt Adhesives via Reological Tools
Hot melts (HMAs) are 100 % solids adhesives which are applied in molten state at high temperature but their performance is reached upon cooling down. Therefore, the application and features of HMAs are tightly related to their rheological and viscoelastic properties. Several previous studies have shown the optimization of the formulations of HMAs by means of experimental testings, but these approaches are time-consuming and always based on the experience of the formulator. There is a need to develop new more efficient tools for designing HMA formulations which key properties can be predicted.
NOXUN Adhesives Company is currently developing rheological testing tools for predicting the key properties of novel HMAs. The main objective of this presentation is to review our findings on the rheological characterization of HMAs which we have found useful for the design of their formulations and for predicting their performance. Furthermore, the main principles and background of the experimental measurements of the rheological/viscoelastic properties of HMAs by plate-plate rheology will be shown. Finally, some relationships between the rheological/viscoelastic parameters and the application conditions (temperature, viscosity, open time), and tack/cohesion of HMAs will be supplemented with different examples.
Co-authors: Erika Jardim; Jesús Júarez-Molina
Breakout XII – Trends in Hotmelt Adhesives – 12 September 2025 – 12:00 – 12:30 – Room 2