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Published on: April 11, 2017
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Auto-Crosslinked Rigid Foams Derived from Biorefinery Byproducts
Pierluigi Tosi1, Gerard P M van Klink2, Alain Celzard3
1Institute of Chemistry of Nice, UMR CNRS 7272, Université Côte d'Azur, University of Nice Sophia Antipolis, Parc Valrose, 06108, Nice cedex 2, France.
Chemsuschem
|June 30, 2018
Summary
Researchers developed a novel foam material from humins, a biorefinery byproduct. This sustainable process creates tunable porous materials for various applications.
Area of Science:
- Materials Science
- Biorefinery Technology
- Sustainable Chemistry
Background:
- Humins are abundant byproducts of lignocellulosic biomass processing.
- Existing methods for humin utilization are limited.
- Developing value-added products from humins is desirable for a circular economy.
Purpose of the Study:
- To develop a novel macroporous foam material from autocross-linking humins.
- To investigate the foaming mechanism and control the material's morphology and porosity.
- To explore the potential of humins-based foams for tailored applications.
Main Methods:
- Humins were subjected to a simple heating process without pretreatment.
- Characterization of raw humins using GC, UPLC, elemental analysis, and FTIR.
- Foaming mechanism elucidated by thermal and rheological analyses.
- Foam morphology, porosity, and cell structure analyzed via SEM, nitrogen adsorption, and pycnometry.
- Mechanical properties evaluated through mechanical tests.
Main Results:
- A macroporous foam-like material was successfully produced from humins.
- The process allows high control over morphology, porosity, and carbon content.
- Foams exhibited controlled cell diameters (0.2–3.5 mm) and tunable open/closed cell structures.
- Characterization confirmed the tailored properties of the humins-based porous materials.
Conclusions:
- Humins can be effectively transformed into macroporous foam materials through a simple heating process.
- The developed method offers precise control over foam architecture and properties.
- These humins-based porous materials present a sustainable and versatile platform for diverse applications.
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