Nature inspired solid-liquid phase amphibious adhesive

AC Chipara and G Brunetto and S Ozden and H Haspel and P Kumbhakar and A Kukovecz and Z Konya and R Vajtai and M Chipara and DS Galvao and CS Tiwary and PM Ajayan, SOFT MATTER, 16, 5854-5860 (2020).

DOI: 10.1039/d0sm00105h

Here we report a new class of bio-inspired solid-liquid adhesive, obtained by simple mechanical dispersion of PVDF (polyvinylidene fluoride) (solid spheres) into PDMS (polydimethylsiloxane) (liquid). The adhesive behavior arises from strong solid-liquid interactions. This is a chemical reaction free adhesive (no curing time) that can be repeatedly used and is capable of instantaneously joining a large number of diverse materials (metals, ceramic, and polymer) in air and underwater. The current work is a significant advance in the development of amphibious multifunctional adhesives and presents potential applications in a range of sealing applications, including medical ones.

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