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Keywords:

  • tetrapodal ZnO;
  • mechanical interlocking;
  • adhesion;
  • composite materials;
  • non-sticky polymers
Thumbnail image of graphical abstract

Tetrapodal ZnO crystals are used for mechanical interlocking of PTFE and cross-linked PDMS, classically non-adhesive polymers. This novel approach is straightforward and easily applicable and leads to a peel strength that is higher than 200 N m−1 without chemical modification of the surfaces. The shape of these fillers emerged as a crucial aspect of the interlocking mechanism.