We present a simple technique to switch off the tack adhesion in selected areas of a colloidal nanocomposite adhesive layer. In regions that are exposed to IR radiation through a mask, such as gold-coated coins (shown here), the nanoparticles sinter together and harden the adhesive, thus destroying the tack adhesion locally. Adhesive island regions are defined with surrounding regions being non-tacky. The process enables 'remote switching' of the adhesive surface at a desired position.

Large-area patterning of the tackiness of a colloidal nanocomposite adhesive by sintering of nanoparticles under IR radiation

245th National Meeting (2013)

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