Development and Application of a Lignin-Based Polyol for Sustainable Reactive Polyurethane Adhesives Synthesis

In response to the environmental impacts of conventional polyurethane adhesives derived from fossil fuels, this study introduces a sustainable alternative utilizing lignin-based polyols extracted from rice straw through a process developed at INESCOP. This research explores the partial substitution...

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Bibliographic Details
Published in:Polymers 2024-07, Vol.16 (13), p.1928
Main Authors: Serrano-Martínez, Víctor M, Hernández-Fernández, Carlota, Pérez-Aguilar, Henoc, Carbonell-Blasco, María Pilar, García-García, Avelina, Orgilés-Calpena, Elena
Format: Article
Language:English
Subjects:
Adhesives
Cellulose
Emission standards
Energy consumption
Environmental impact
Ethanol
Hydrochloric acid
Innovations
Lignin
Peel tests
Polyols
Polyurethane resins
Renewable resources
Rheological properties
Rice
Sustainable development
Sustainable materials
Synthesis
Thermogravimetric analysis
Citations: Items that this one cites
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Summary:In response to the environmental impacts of conventional polyurethane adhesives derived from fossil fuels, this study introduces a sustainable alternative utilizing lignin-based polyols extracted from rice straw through a process developed at INESCOP. This research explores the partial substitution of traditional polyols with lignin-based equivalents in the synthesis of reactive hot melt polyurethane adhesives (HMPUR) for the footwear industry. The performance of these eco-friendly adhesives was rigorously assessed through Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), rheological analysis, and T-peel tests to ensure their compliance with relevant industry standards. Preliminary results demonstrate that lignin-based polyols can effectively replace a significant portion of fossil-derived polyols, maintaining essential adhesive properties and marking a significant step towards more sustainable adhesive solutions. This study not only highlights the potential of lignin in the realm of sustainable adhesive production but also emphasises the valorisation of agricultural by-products, thus aligning with the principles of green chemistry and sustainability objectives in the polymer industry.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym16131928