1 Revisiting the role of interfacial chemistry in composite durability: recent concepts and developments 1 This paper investigates the role of interfacial structures and chemistry in the durability and mechanical performance of fiber-reinforced composite materials. First, the history and development trend of hybrid composites are reviewed, and then the types of bonding in polymer and metal composites are analyzed. Next, nanoscale features such as nanopores and nanofibers and the principles of nano-structuring in the interfacial region are reviewed. The paper compares the effects of matrix changes and interfacial nanostructure engineering on the mechanical behavior of nanocomposites and finally, presents a nonlinear damage model to describe deformation in polymer nanocomposites, which is applied to epoxy systems containing carbon nanotubes and reactive graphite. 1 2 Faezeh Khan Ahmadi Department of Inorganic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, P.O. Box 87317-53153 Iran Khan.Ahmadi.F24@gmail.com Interfacial chemistry Composite durability Common surface Mechanical behavior [1] Y.X. Gan, Effect of Interface Structure on Mechanical Properties of Advanced Composite Materials, International Journal of Molecular Sciences, 2009, pp. 5115-5134.##[2] S. Li, P. Cheng, S. Ahzi, Y. Peng, K. Wang, F. Chinesta, J.P.M. Correia, Advances in hybrid fibers reinforced polymer-based composites prepared by FDM: A review on mechanical properties and prospects, Composites Communications 40 (2023) 101592.##[3] U.K. Vaidya, S. Pillay, S. Bartus, C.A. Ulven, D.T. Grow, B. Mathew, Impact and post-impact vibration response of protective metal foam composite sandwich plates, Materials Science and Engineering: A 428(1) (2006) 59-66.##[4] S. Budhe, M.D. Banea, S. de Barros, Bonded repair of composite structures in aerospace application: a review on environmental issues, Applied Adhesion Science 6(1) (2018) 3.##[5] L.N. Sacco, S. Vollebregt, Overview of Engineering Carbon Nanomaterials Such As Carbon Nanotubes (CNTs), Carbon Nanofibers (CNFs), Graphene and Nanodiamonds and Other Carbon Allotropes inside Porous Anodic Alumina (PAA) Templates, Nanomaterials, 2023.##[6] G. Akovali, Handbook of composite fabrication, iSmithers Rapra Publishing2001.##[7] Y. Zhao, M. Chen, Y. Zhang, T. Xu, W. Liu, A facile approach to formation of through-hole porous anodic aluminum oxide film, Materials Letters 59(1) (2005) 40-43.##[8] C.-A. Ku, C.-Y. Yu, C.-W. Hung, C.-K. Chung, Advances in the Fabrication of Nanoporous Anodic Aluminum Oxide and Its Applications to Sensors: A Review, Nanomaterials, 2023.##[9] N.M. Nurazzi, F.A. Sabaruddin, M.M. Harussani, S.H. Kamarudin, M. Rayung, M.R.M. Asyraf, H.A. Aisyah, M.N.F. Norrrahim, R.A. Ilyas, N. Abdullah, E.S. Zainudin, S.M. Sapuan, A. Khalina, Mechanical Performance and Applications of CNTs Reinforced Polymer Composites—A Review, Nanomaterials, 2021.##[10] K. Olonisakin, M. fan, Z. Xin-Xiang, L. Ran, W. Lin, W. Zhang, Y. Wenbin, Key Improvements in Interfacial Adhesion and Dispersion of Fibers/Fillers in Polymer Matrix Composites; Focus on PLA Matrix Composites, Composite Interfaces 29(10) (2022) 1071-1120.