A new glue that forms a strong bond when activated by low voltage electricity may be the first of its kind.
Researchers at Nanyang Technological University in Singapore believe the adhesive may be a game-changer in manufacturing fields as diverse as biological implants and automobiles.
The new adhesive is a liquid gel that “cures” to form a polymer bond when a voltage of less than two volts is passed through it. Curing is the amount of time it takes for a glue to reach full strength after it dries. The glue stops curing as soon as the current is turned off. Users can fine-tune the bond’s strength and flexibility by varying the current’s voltage and duration.
The bonding agent is a light, low-viscosity flowing liquid that allows users to coat and exactly position the materials to be joined. Applying voltage to the gel then rapidly cures it to a strong bond with high elasticity and high shear strength.