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US 11,752,745 B2Granted
Shape adaptive wrinkle-driven 3D tubular structure for stretchable interactive electronics
AssigneeUniversity of Connecticut
InventorsLuyi Sun, Songshan Zeng, Dianyun Zhang, Rui Li
Life of this patent
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Abstract
Disclosed is a stretchable, three-dimensional tubular structure formed due to processing-induced wrinkles to result in a platform for stretchable interactive electronics. The three-dimensional tubular structure is fabricated simply by releasing a pre-stretched two-dimensional film-substrate precursor, and the resulting wrinkled surface shows a strong directional dependence that drives the tube formation.
Claims8
A method of making a stretchable three-dimensional tubular structure, comprising:
- providing a multilayer precursor film comprising a polymer precursor layer bonded to an elastomer precursor layer;
- pre-stretching and releasing the multilayer precursor film to form the multilayer film that is substantially tubular in structure and comprises an openable seam, the elastomer layer forming an outer surface of the tubular structure and the polymer layer forming an inner surface of the tubular structure, wherein the inner surface has a wrinkled morphology;
- and
- optionally repeating the pre-stretching and releasing for 2 or more cycles.
1 more element
Dependencies are inferred from the claim text.