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Publications

Find here all publications that were created and published within the context of the r-LightBioCom project.

Influence of Enzymatically Hydrophobized Hemp Protein on Morphology and Mechanical Properties of Bio-Based Polyurethane and Epoxy Foams

Ferreres, G. (UPC); Pérez-Rafael, S. (UPC; Morena, A.G. (UPC); Tzanov, T. (UPC); Gryshchuk, L. (IVW). In: Polymers, 2023, 15, 3608. September 2023

 

In this joint study, r-LightBioCom‘s partners Universitat Politècnica de Catalunya and Leibniz-Institut für Verbundwerkstoffe GmbH created and investigated hemp biomass bio-fillers, which offer the very good possibility to modify the mechanical properties of e.g. foams for composite materials. Hydrophobization of hemp protein (HHP) particles with lauryl gallate by an enzymatic, laccase-mediated functionalization allowed creating such filler, which effective reduce density of the polyurethane (PU) and epoxy (EP) composite foams. Introduction of HHP filler has different influence on the foams morphology – the fillers increased the size of the cells, while reducing the amount of open cells of PU foams and the amount of closed cells for EP foams. Moreover, both types of foams filled with hydrophobized filler reduced the moisture uptake by 80 and 45%, respectively, indicating the successful hydrophobization of the composites.

Continuous sonochemical nanotransformation of lignin – Process design and control

Sílvia Pérez-Rafael, Guillem Ferreres, Tzanko Tzanov, et al. In: Ultrasonics Sonochemistry; Elsevier; August 2023.

Lignin, the most abundant renewable aromatic polymer, has been successfully transformed into highly concentrated lignin nanoparticles using an eco-friendly continuous sonochemical process. By optimizing ultrasound parameters, researchers achieved precise control over particle size and distribution, paving the way for innovative material applications and the potential for real-time process monitoring.

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