2024-01-12 06:37:00
Scientists from China have developed a supramolecular adhesive that can effectively bond surfaces even at extreme temperatures.
The new adhesive consists of two key components that have the ability to self-assemble during the curing process. One is a ring-shaped molecule known as a crown ether that wraps around another component, a small protein produced by bacteria.
When the mixture is combined and heated, the crown ether binds tightly to the surface of the protein, strengthening the bond by interacting with opposing charges. The effectiveness of the glue was confirmed when gluing steel plates that can withstand pressures of up to 22 megapascals at temperatures ranging from -196°C to 200°C, reports Vokrug Sveta.
One of the key aspects of the development’s success is the displacement of water from the protein during gluing, which prevents ice crystals from cracking the material when the temperature drops. In addition, the adhesive has the ability to dismantle and recycle blocking components, making it sustainable and promising for use in a variety of environments, including outer space.
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