|23||Making adhesives surfaces reversible
Thermo-expandable microspheres (TEMs), which consist of an outer shell of copolymer thermoplastic resin encapsulating a liquid hydrocarbon, when the heat trigger is applied at command the microspheres expand to over 100 times their volume, acting as a pressure activator to cleanly break the bond at the interface, and the cohesive structure. A key part of the patented technology is the functionalization of the TEMs surfaces, e.i. a conducting material is applied onto the polymeric shells of the microspheres. This additional layer enables quicker ways to get the heat to the TEM surface without damaging the material itself.