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The polydopamine-enhanced superadhesion and fracture strength of honeycomb polyurethane porous membranes

The superhydrophobic properties of biological surfaces in nature have attracted extensive attention in scientific and industrial circles. Relative to the rolling superhydrophobic state of lotus leaves, the adhesive superhydrophobic state of geckos and Parthenocissus tricuspidata is also significant...

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Autores principales: Xue, Mingshan, Zhou, Dan, Ji, Yuwei, Xie, Yu, Li, Changquan, Zhao, Jinsheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9047967/
https://www.ncbi.nlm.nih.gov/pubmed/35494704
http://dx.doi.org/10.1039/c9ra07887h
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author Xue, Mingshan
Zhou, Dan
Ji, Yuwei
Xie, Yu
Li, Changquan
Zhao, Jinsheng
author_facet Xue, Mingshan
Zhou, Dan
Ji, Yuwei
Xie, Yu
Li, Changquan
Zhao, Jinsheng
author_sort Xue, Mingshan
collection PubMed
description The superhydrophobic properties of biological surfaces in nature have attracted extensive attention in scientific and industrial circles. Relative to the rolling superhydrophobic state of lotus leaves, the adhesive superhydrophobic state of geckos and Parthenocissus tricuspidata is also significant in many fields. In this work, polydopamine (PDA) with its excellent biological compatibility and strong adhesion was selected as a substance to simulate the secretion of the suckers of P. tricuspidata and it was precipitated at the surface of honeycomb polyurethane porous membranes (PUPM). The results demonstrated that the honeycomb PUPM, as prepared, displayed special super-adhesion properties similar to those of geckos and P. tricuspidata. PDA formed via self-polymerization in aqueous solution was equivalent to a double-sided adhesive, acquiring a micro–nano structure of PDA and PUPM and displaying increased surface hydrophobicity and improved adhesion properties. Even when the surface precipitation of PDA and modification with n-dodecyl mercaptan made the contact angle increase to more than 160°, the surface adhesion to water was rather strong and remained stable. The addition of the PDA adhesive can effectively change the microporous structure of PUPM, enhancing the viscosity, and facilitating an enhancement in the fracture strength.
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spelling pubmed-90479672022-04-28 The polydopamine-enhanced superadhesion and fracture strength of honeycomb polyurethane porous membranes Xue, Mingshan Zhou, Dan Ji, Yuwei Xie, Yu Li, Changquan Zhao, Jinsheng RSC Adv Chemistry The superhydrophobic properties of biological surfaces in nature have attracted extensive attention in scientific and industrial circles. Relative to the rolling superhydrophobic state of lotus leaves, the adhesive superhydrophobic state of geckos and Parthenocissus tricuspidata is also significant in many fields. In this work, polydopamine (PDA) with its excellent biological compatibility and strong adhesion was selected as a substance to simulate the secretion of the suckers of P. tricuspidata and it was precipitated at the surface of honeycomb polyurethane porous membranes (PUPM). The results demonstrated that the honeycomb PUPM, as prepared, displayed special super-adhesion properties similar to those of geckos and P. tricuspidata. PDA formed via self-polymerization in aqueous solution was equivalent to a double-sided adhesive, acquiring a micro–nano structure of PDA and PUPM and displaying increased surface hydrophobicity and improved adhesion properties. Even when the surface precipitation of PDA and modification with n-dodecyl mercaptan made the contact angle increase to more than 160°, the surface adhesion to water was rather strong and remained stable. The addition of the PDA adhesive can effectively change the microporous structure of PUPM, enhancing the viscosity, and facilitating an enhancement in the fracture strength. The Royal Society of Chemistry 2020-01-08 /pmc/articles/PMC9047967/ /pubmed/35494704 http://dx.doi.org/10.1039/c9ra07887h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Xue, Mingshan
Zhou, Dan
Ji, Yuwei
Xie, Yu
Li, Changquan
Zhao, Jinsheng
The polydopamine-enhanced superadhesion and fracture strength of honeycomb polyurethane porous membranes
title The polydopamine-enhanced superadhesion and fracture strength of honeycomb polyurethane porous membranes
title_full The polydopamine-enhanced superadhesion and fracture strength of honeycomb polyurethane porous membranes
title_fullStr The polydopamine-enhanced superadhesion and fracture strength of honeycomb polyurethane porous membranes
title_full_unstemmed The polydopamine-enhanced superadhesion and fracture strength of honeycomb polyurethane porous membranes
title_short The polydopamine-enhanced superadhesion and fracture strength of honeycomb polyurethane porous membranes
title_sort polydopamine-enhanced superadhesion and fracture strength of honeycomb polyurethane porous membranes
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9047967/
https://www.ncbi.nlm.nih.gov/pubmed/35494704
http://dx.doi.org/10.1039/c9ra07887h
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