Bioenergy Technologies Office
May 14, 2019
Scientists Create Material with a Mussel-Like Stickiness
Researchers developed a new material using epoxy mixed with a form of lignin naturally rich in hydroxyl groups that can self-heal if sliced and elongate up to 2,000%. Photo courtesy of ORNL.
Scientists at Oak Ridge National Laboratory (ORNL) have developed a new, stretchy, plant-derived material that outperforms the adhesiveness of the natural chemical that gives mussels the ability to stick to rocks and ships. This bio-based material—composed of lignin (the substance that gives plants sturdiness) and epoxy—can self-heal and elongate up to 2,000%. To achieve these results, researchers developed a unique method to extract a specific form of lignin. The resulting molecular structure creates a super-sticky, highly elastic material that can heal quickly, where broken, through hydrogen bonding.
This extracted lignin shows promise for a range of industrial applications including coatings, glues, and hydrogels. The results, published in ACS Macro Letters, demonstrate new potential for a small, but high-value portion of the lignin waste stream from biorefineries and the pulp and paper industry.
Learn more about the Office of Energy Efficiency and Renewable Energy on Facebook and follow Assistant Secretary Daniel Simmons on Twitter.
View in browser
|
