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Photocuring Graphene Oxide Liquid Crystals for High-Strength Structural Materials

Authors: Riad KBHoa SVWood-Adams PM


Affiliations

1 Laboratory for the Physics of Advanced Materials, Department of Chemical and Material Engineering, Concordia University, 1550 De Maisonneuve Boulevard West, Montreal, Quebec, Canada H3G 2J2.
2 Concordia Center for Composites, Department of Mechanical, Industrial and Aerospace Engineering, Concordia University, 1550 De Maisonneuve Boulevard West, Montreal, Quebec, Canada H3G 2J2.

Description

Graphene is the strongest known material. However, the challenge of translating that strength from the microscale to the more useful macroscale remains unmet. Preparing solid structures from self-assembled graphene oxide liquid crystals has allowed the creation of paper and fibers with excellent mechanical properties. Conventionally, vacuum filtration, wet spinning, and freeze-drying are used to prepare such structures from graphene oxide liquid crystals. Here, we introduce photocuring as an additional option to create solid structures of self-assembled graphene oxide liquid crystals that allows for thicker samples and other shapes to be realized. The photocured graphene oxide paper prepared here exhibited mechanical properties comparable to those of benchmark samples prepared by vacuum filtration.

Links

PubMed: pubmed.ncbi.nlm.nih.gov/35755360/

DOI: 10.1021/acsomega.2c02084