Tough and Conductive Nacre-inspired MXene/Epoxy Layered Bulk Nanocomposites.

Wang, Huagao; Lu, Rongjian; Yan, Jia; Peng, Jingsong; Tomsia, Antoni P; Liang, Rui; Sun, Guoxing; Liu, Mingjie; Jiang, Lei; Cheng, Qunfeng

Wang, Huagao; Lu, Rongjian; Yan, Jia; Peng, Jingsong; Tomsia, Antoni P; Liang, Rui; Sun, Guoxing; Liu, Mingjie; Jiang, Lei; Cheng, Qunfeng.

Afiliación

Wang H; Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of, Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China.
Lu R; Department of Stomatology, Fifth Medical Center, Chinese PLA General Hospital, Beijing, 100039, P. R. China.
Yan J; Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of, Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China.
Peng J; Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of, Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China.
Tomsia AP; Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of, Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China.
Liang R; Department of Engineering Science, Faculty of Innovation Engineering, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau SAR, 999078, P. R. China.
Sun G; Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR, 999078, P. R. China.
Liu M; Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of, Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China.
Jiang L; Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of, Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China.
Cheng Q; CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, CAS Center for Excellence in Nanoscience, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.

Angew Chem Int Ed Engl ; 62(9): e202216874, 2023 Feb 20.

Article en En | MEDLINE | ID: mdl-36460617

ABSTRACT

ABSTRACT

A long-standing quest in materials science has been the development of tough epoxy resin nanocomposites for use in numerous applications. Inspired by nacre, here we report tough and conductive MXene/epoxy layered bulk nanocomposites. The orientation of MXene lamellar scaffolds is enhanced by annealing treatment. The improved interfacial interactions between MXene lamellar scaffold and epoxy through surface chemical modification resulted in a synergistic effect. Tailoring the interlayer spacing of MXene nanosheets to a critical distance resulted in a fracture toughness about eight times higher than that of pure epoxy, surpassing other epoxy nanocomposites. Our nacre-inspired MXene/epoxy layered bulk nanocomposites also show high electrical conductivity that provides self-monitoring capability for structural integrity and exhibits an excellent electromagnetic interference shielding efficiency. Our proposed strategy provides an avenue for fabricating high-performance epoxy nanocomposites.

Palabras clave

Bulk Nanocomposites; Electrical Conductivity; Epoxy; MXene; Mechanical Properties

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