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Green and ultrastrong polyphenol lignin-based vitrimer adhesive with photothermal conversion property, wide temperature adaptability, and solvent resistance.
- Source :
-
Chemical Engineering Journal . Dec2023, Vol. 477, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- • Ph-lignin-based vitrimer exhibits good photothermal conversion capacity. • Ph-lignin-based vitrimer exhibits good reusability and performance stability. • Ph-lignin-based vitrimer adhesive has ultrastrong bonding strength for wood. • Ph-lignin-based vitrimer adhesive has wide temperature adaptability. Lignin, a natural adhesive in plants, has received extensive attention from both academia and industry. However, limited by the reactivity and heterogeneity of industrial lignin raw materials, lignin-based adhesives are not competitive in terms of adhesive performance and reusability. Here, a green and facile method is reported for a polyphenol lignin (Phenol-lignin)-based, ultrastrong, reusable, wide temperature adaptability, and solvent-resistant vitrimer adhesive with molecular designs of lignin extending beyond those in nature. The fabricated Phenol-lignin-based vitrimer exhibits the world's highest wood lap shear strength of 12.87 MPa among the vitrimer adhesives. Even in extreme environments, such as boiling water (100 °C), liquid nitrogen (-196 °C), and organic solvents, the Phenol-lignin-based vitrimer-bonded wood sheets can still maintain a high level of strength. In addition, due to the good light-to-heat conversion performance of lignin, Phenol-lignin-based vitrimer can be repaired by infrared laser irradiation. The recycled adhesive retained 93.1 % of its strength. This new lignin material will be incorporated into not only industrial adhesives but also various green material systems in the future. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13858947
- Volume :
- 477
- Database :
- Academic Search Index
- Journal :
- Chemical Engineering Journal
- Publication Type :
- Academic Journal
- Accession number :
- 173723297
- Full Text :
- https://doi.org/10.1016/j.cej.2023.147216