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Directional Adhesion of Monodomain Liquid Crystalline Elastomers.
Pranda, Paula A; Hedegaard, Aaron; Kim, Hyunki; Clapper, Jason; Nelson, Eric; Hines, Lindsey; Hayward, Ryan C; White, Timothy J.
Afiliación
  • Pranda PA; Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States.
  • Hedegaard A; 3M Company, Saint Paul, Minnesota 55144, United States.
  • Kim H; 3M Company, Saint Paul, Minnesota 55144, United States.
  • Clapper J; 3M Company, Saint Paul, Minnesota 55144, United States.
  • Nelson E; 3M Company, Saint Paul, Minnesota 55144, United States.
  • Hines L; 3M Company, Saint Paul, Minnesota 55144, United States.
  • Hayward RC; Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States.
  • White TJ; Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, United States.
ACS Appl Mater Interfaces ; 16(5): 6394-6402, 2024 Feb 07.
Article en En | MEDLINE | ID: mdl-38266384
ABSTRACT
Pressure-sensitive adhesives (PSAs) are widely employed in consumer goods, health care, and commercial industry. Anisotropic adhesion of PSAs is often desirable to enable high force capacity coupled with facile release and has typically been realized through the introduction of complex surface and/or bulk microstructures while also maintaining high surface conformability. Although effective, microstructure fabrication can add cost and complexity to adhesive fabrication. Here, we explore aligned liquid crystalline elastomers (LCEs) as directional adhesives. Aligned LCEs exhibit direction-dependent stiffness, dissipation, and nonlinear deformation under load. By varying the cross-link content, we study how the bulk mechanical properties of LCEs correlate to their peel strength and peel anisotropy. We demonstrate up to a 9-fold difference in peel force measured when the LCE is peeled parallel vs perpendicular to the alignment axis. Opportunities to spatially localize adhesion are presented in a monolithic LCE patterned with different director orientations.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos