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Versatile Ionic Gel Driven by Dual Hydrogen Bond Networks: Toward Advanced Lubrication And Self-Healing
State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, P. R. China.
State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, P. R. China.
State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, P. R. China.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-6085-7880
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2021 (English)In: ACS Applied Polymer Materials, ISSN 2637-6105, Vol. 3, no 11, p. 5932-5941Article in journal (Refereed) Published
Abstract [en]

From one to more, the same raw materials giving rise to multifarious products is one of the goals of researchers to pursue industrial efficiency. Herein, we designed a formula (controlling the content of the matrix) to prepare two functional ionic gels, integrating the excellent lubrication, thermal conductivity, and self-healing ability to meet different industrial demands of the lubrication and biomedical fields. Deep eutectic solvents (DESs) of urea/choline chloride (UCC) and glycerol/choline chloride (GCC) were locked in polyacrylamide (PAM) ionic gel formed by acrylamide (AM) and a photoinitiator by freer-adical polymerization. The unique dual hydrogen bond network in the ionic gel causes the material to exhibit a low wear rate, which can effectively reduce the wear of metal contact. With the addition of PAM, the ionic gel has excellent mechanical strength and good recovery performance. Unexpectedly, this dense hydrogen bond network enhances thermal conductivity by optimizing phonon and electron transfer. The versatile ionic gel has a good application prospect as a substitute for industrial lubricants and medical device materials.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2021. Vol. 3, no 11, p. 5932-5941
Keywords [en]
ionic gel, dual hydrogen bond networks, lubrication, self-healing, thermal conductivity, mechanical strength
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-88126DOI: 10.1021/acsapm.1c01189ISI: 000719860800060Scopus ID: 2-s2.0-85118694868OAI: oai:DiVA.org:ltu-88126DiVA, id: diva2:1615663
Note

Validerad;2021;Nivå 2;2021-11-30 (johcin);

For funding details: https://pubs.acs.org/doi/10.1021/acsapm.1c01189

Available from: 2021-11-30 Created: 2021-11-30 Last updated: 2021-12-09Bibliographically approved

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Shi, YijunMu, Liwen

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