Real-time monitoring of supramolecular adhesion at extreme temperatures
[Display omitted] •A supramolecular approach was applied to construct novel adhesive materials with excellent adhesion performances.•Tough, strong and long-stable adhesion performances were obtained in a wide temperature range (from −196 to 150 ℃).•Quantitative and real-time monitoring of the entire...
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Veröffentlicht in: | Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2023-01, Vol.451, p.138674, Article 138674 |
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Format: | Artikel |
Sprache: | eng |
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•A supramolecular approach was applied to construct novel adhesive materials with excellent adhesion performances.•Tough, strong and long-stable adhesion performances were obtained in a wide temperature range (from −196 to 150 ℃).•Quantitative and real-time monitoring of the entire adhesion behavior was successfully realized.•Adhesion failure was visualized and alarmed by a wireless warning device.
A supramolecular approach was applied to the construction of adhesive materials with excellent temperature resistance and strong adhesion capacity. Supramolecular hot-molten glues were prepared from two small compounds, acrylic acid (A) and choline chloride (C), using a combination of molecular recognition (formation of supramonomers) and supramolecular polymerization (formation of cross-linked polymers). The coexistence of covalent poly(A) backbones and non-covalent crosslinker C units enabled the poly(A-C)s to display tough adhesion effects with long-term stability at high (150 °C, 5.18 MPa) and low temperatures (–196 °C, 9.52 MPa) without any additives. Real-time and quantitative monitoring of the adhesion behavior of poly(A-C)s was successfully realized over a wide temperature range of −80 to 150 °C, using a customized device that allowed for easy monitoring of the adhesion duration, attenuation, and failure. Importantly, adhesion failure was visualized and wirelessly alarmed. |
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ISSN: | 1385-8947 1873-3212 |
DOI: | 10.1016/j.cej.2022.138674 |