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Clay-Based Polymer Nanocomposites: Essential Work of Fracture

National Council for Science and Technology (CONACYT—CIDESI), Center for Engineering and Industrial Development, Carretera Estatal 200, km 23, Querétaro 76265, Mexico
Academic Editors: Somen K. Bhudolia and Sunil Chandrakant Joshi
Polymers 2021, 13(15), 2399; https://doi.org/10.3390/polym13152399
Received: 20 May 2021 / Revised: 13 June 2021 / Accepted: 15 June 2021 / Published: 22 July 2021
(This article belongs to the Special Issue Advanced Thermoplastic Polymers and Composites)
This work details the general structure of the clays used as a reinforcement phase in polymer nanocomposites. Clays are formed by the molecular arrangement of atomic planes described through diagrams to improve their visualization. The molecular knowledge of clays can facilitate the selection of the polymer matrix and achieve a suitable process to obtain clay-based polymer nanocomposite systems. This work highlights the development of polymer nanocomposites using the melt intercalation method. The essential work of fracture (EWF) technique has been used to characterize the fracture behavior of materials that show ductility and where complete yielding of the ligament region occurs before the crack propagation. In this sense, the EWF technique characterizes the post-yielding fracture mechanics, determining two parameters: the specific essential work of fracture (we), related to the surface where the actual fracture process occurs, and the specific non-essential work of fracture (wp), related to the plastic work carried out in the outer zone of the fracture zone. The EWF technique has been used successfully in nano-reinforced polymers to study the influence of different variables on fracture behavior. In this work, the fundamentals of the EWF technique are described, and some examples of its application are compiled, presenting a summary of the most relevant contributions in recent years. View Full-Text
Keywords: EWF; polymer-layered silicates; oMMT; clay minerals; mechanical properties EWF; polymer-layered silicates; oMMT; clay minerals; mechanical properties
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MDPI and ACS Style

Franco-Urquiza, E.A. Clay-Based Polymer Nanocomposites: Essential Work of Fracture. Polymers 2021, 13, 2399. https://doi.org/10.3390/polym13152399

AMA Style

Franco-Urquiza EA. Clay-Based Polymer Nanocomposites: Essential Work of Fracture. Polymers. 2021; 13(15):2399. https://doi.org/10.3390/polym13152399

Chicago/Turabian Style

Franco-Urquiza, Edgar A. 2021. "Clay-Based Polymer Nanocomposites: Essential Work of Fracture" Polymers 13, no. 15: 2399. https://doi.org/10.3390/polym13152399

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