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Red elástica de gotas para adhesivos subacuáticos

Hyuna Jo^1,2, Seunghyun Sim^1,2,3,4

¹Department of Chemistry, University of California Irvine, Irvine, California 92697, United States.

Journal of the American Chemical Society

|December 4, 2023

Resumen

Los investigadores desarrollaron un adhesivo submarino resistente y de acción rápida utilizando una red autoensamblada de gotas de líquido. Este material, hecho de precursores simples, ofrece una adhesión robusta para aplicaciones rápidas de reparación y cuidado de heridas bajo el agua.

Área de la Ciencia:

Ciencias de los materiales
Ingeniería de Biomateriales
Química de los polímeros

Sus antecedentes:

La funcionalidad del material biológico a menudo se deriva de estructuras jerárquicas formadas a través del autoensamblaje.
El desarrollo de materiales sintéticos que imiten esta organización jerárquica es crucial para aplicaciones avanzadas.

Objetivo del estudio:

Para reportar un nuevo proceso de auto-ensamblaje atrapado cinéticamente para crear una red elástica de gotas de líquido.
Para demostrar la utilidad de este material autoensamblado como un adhesivo submarino resistente y de acción rápida.

Principales métodos:

Una síntesis de una sola olla usando precursores escalables de moléculas pequeñas.
Inducción de la separación de la fase líquido-líquido, la hidrólisis del silanol, la condensación y la autoasociación zwitteriónica.
Caracterización del sólido viscoelástico resultante con gotas de líquido interconectadas.

Principales resultados:

Formación exitosa de una microestructura jerárquica compuesta por gotas de líquido interconectadas.
Demostrado resistencia y rápida adhesión en un entorno subacuático a través de varios sustratos.
El material presenta propiedades viscoelásticas adecuadas para aplicaciones adhesivas.

Conclusiones:

El autoensamblaje atrapado cinéticamente proporciona una ruta escalable a las microestructuras jerárquicas.
El material desarrollado sirve como una plataforma robusta para adhesivos submarinos.
Las aplicaciones potenciales incluyen la reparación rápida bajo el agua y el cuidado de heridas de emergencia.

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