Science

Hybrid patch offers 70X stronger adhesion, preventing cracks without traditional chemical adhesives

Fabrication of crack-trapping hybrid adhesive patch. Credit: Science Advances (2024). DOI: 10.1126/sciadv.adq3438

A breakthrough in hybrid patch know-how guarantees to forestall cracks whereas sustaining sturdy adhesion with out the usage of chemical adhesives. This innovation is anticipated to drive developments in wearable units, digital actuality (VR) gear, and the well being care trade.

The analysis staff, led by Professor Hoon Eui Jeong from the Division of Mechanical Engineering at UNIST, has developed a “programmable meta patch” know-how that successfully prevents cracking over each small and huge areas. This know-how permits for attachment in particular instructions, whereas maximizing adhesion strength.

These hybrid patches exhibit adhesion that’s 70 occasions stronger than typical adhesives by means of the incorporation of hexagonal pillars, tip constructions, and nonlinear reducing designs. Since they don’t depend on chemical adhesives, they decrease pores and skin irritation and may be reused. They supply efficient crack prevention throughout a variety of floor sizes, from micro-scale to macro-scale.

The research is published within the journal Science Advances.

  • Revolutionary patch offers 70X stronger adhesion, preventing cracks without traditional adhesives
    Design of crack-trapping hybrid adhesive patch. Credit: Science Advances (2024). DOI: 10.1126/sciadv.adq3438
  • Revolutionary patch offers 70X stronger adhesion, preventing cracks without traditional adhesives
    Software of the hybrid adhesive patch. Credit: Science Advances (2024). DOI: 10.1126/sciadv.adq3438

The adhesive patch includes a nature-inspired design mixed with a kirigami-inspired metastructure, enabling each the energy and course of adhesion to be adjusted as vital. Whereas adhesion varies by course, this adaptability ensures environment friendly attachment solely the place wanted.

“Existing skin adhesion technologies in bio-health care and wearable devices often cause skin irritation due to chemical adhesives and are difficult to reuse,” famous Professor Jeong. “Our reusable adhesion know-how considerably reduces skin irritation by making use of directional adhesion whereas sustaining robust adhesion.”

Wearable VR units using these patches adhere securely from all instructions whereas inflicting minimal irritation to the pores and skin. In addition they boast excessive breathability, enhancing person consolation. This accomplishment in overcoming the restrictions of present pores and skin adhesion know-how has garnered consideration within the biohealthcare sector.

Extra data:
Seongjin Park et al, Multiscale crack trapping for programmable adhesives, Science Advances (2024). DOI: 10.1126/sciadv.adq3438

Offered by
Ulsan National Institute of Science and Technology


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Hybrid patch gives 70X stronger adhesion, stopping cracks with out conventional chemical adhesives (2024, October 22)
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