Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session N17: Structure, Dynamics, and Mechanics of Polymer Networks II
11:30 AM–2:06 PM,
Wednesday, March 16, 2022
Room: McCormick Place W-184BC
Sponsoring
Units:
DPOLY DSOFT DBIO
Chair: Scott Danielsen, Duke University
Abstract: N17.00008 : Reversing fatigue damage in self- healing vitrimer and its composites
12:54 PM–1:06 PM
Presenter:
Mithil Kamble
(Rensselaer Polytechnic Institute)
Authors:
Mithil Kamble
(Rensselaer Polytechnic Institute)
Dong Wang
(State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing)
Nikhil Koratkar
(Rensselaer Polytechnic Institute)
Catalin Picu
(Rensselaer Polytechnic Institute)
We report a vitrimeric system which is prepared using epoxy resin and adipic acid with a suitable catalyst. The system has mechanical properties comparable to conventional epoxies and is defined by two characteristic temperatures namely, the glass transition temperature (Tg) and topology freezing temperature (Tv). We demonstrate that the vitrimer can be periodically healed by heating at elevated temperature. Further, we also report a carbon fiber vitrimer composite which can be similarly healed by periodic healing. Such composites can pave way for next generation of structural components which are recyclable and have much longer service lifespans.
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