A new class of high performance self-healing adhesives

D.J. Gilmour, S.S. Scott, N. Kuanr, S-C. Rosca, P. Brant, S.G. Hatzikiriakos, L.L. Schafer
University of British Columbia, BC, Canada

Keywords: adhesive, self-healing, polymer, materials

Current adhesives produced on large-scale are useful and inexpensive; however, adhesion challenges remain where these materials can not meet performance standards. For instance, a so-called 'universal adhesive' that can stick to any surface without modification remains elusive. Furthermore, adhesives typically become brittle when cured, and hydration in moist or underwater applications can cause their failure. Using proprietary methodology developed at the University of British Columbia Chemistry and Chemical Engineering departments, a novel class of materials have been invented that offer unique adhesive performance characteristics. Built upon the core integrity of robust thermoplastics, our ability to add amine bonding groups has resulted in a material that can be used as an adhesive to virtually any material (including classic 'non-stick' surfaces). These materials exhibit self-healing behavior, where samples that are broken can be placed into contact to re-fuse, or cracks that are created are filled in rather than propagated through the material. These materials are being developed towards adhesion challenges where product integrity is critical or the product environment is harsh or challenging.