Insights into Mechanical Deformation of Nanostructure-Reinforced Composites

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanocomposite Materials".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 1981

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Department of Mechanics of Materials and Structures, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdansk, Poland
Interests: plates and shells theory; viscoelasticity; FGMs; composite structures; size-dependent theories; smart composites; nanocomposites; molecular dynamics; electro-mechanical structures
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Division of Mechanics, Civil Engineering Department, Akdeniz University, Antalya, Turkey
Interests: micro/nanomechanics; plates and shells theory; mechanical behavior of carbon nanostructures (fullerene, single- and multi-layered graphene particles); viscoelasticity; three-dimensional elasticity analysis; numerical and semi-analytical solution methods; atomic force microscope; crack analysis; FGMs; composite structures
Special Issues, Collections and Topics in MDPI journals

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Division of Mechanics, Civil Engineering Department, Akdeniz University, Antalya, Turkey
Interests: computational mechanics; continuum mechanics; vibration analysis; micromechanics of materials; thermoelasticity; composite structures; finite element analysis; carbon nanotubes; modal analysis

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Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
Interests: solid mechanics; computational mechanics; continuum mechanics; finite element method; mechanical design; vibration analysis; laminated composites; numerical methods; nanomechanics; FGMs

Special Issue Information

Dear Colleagues,

In recent years, ideas have been cultivated to enable global maximization of the benefits of nanotechnology.

The advantages of nanocomposites have brought them much attention in the industry. Their classification is based on whether they are natural or synthetic, as well as whether they possess a metal, polymer, or ceramic matrix. Nanocomposites are used to compensate for inherent defects in the matrix or to improve its properties with the help of different nanostructures. Carbon nanotubes, graphene, titania and silica nanoparticles, clay nanoplates, and silicon carbide nanoparticles are among the most commonly used nanostructures. Materials can be given special properties by using these nanostructures in very low weight percentages.

In this Special Issue, we aim to highlight the latest research in this important field and to publish the results of theoretical and experimental studies (particularly those with a molecular focus) with regard to the improvement of materials using nanoparticles.

Dr. Mohammad Malikan
Dr. Shahriar Dastjerdi
Dr. Bekir Akgöz
Prof. Dr. Ömer Civalek
Guest Editors

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Keywords

  • nanocomposites
  • multiscale models
  • nano-reinforcer
  • nano-filler
  • FGMs

Published Papers (1 paper)

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Research

18 pages, 2592 KiB  
Article
The Mechanical Properties of Blended Fibrinogen:Polycaprolactone (PCL) Nanofibers
by Nouf Alharbi, Annelise Brigham and Martin Guthold
Nanomaterials 2023, 13(8), 1359; https://doi.org/10.3390/nano13081359 - 13 Apr 2023
Cited by 2 | Viewed by 1534
Abstract
Electrospinning is a process to produce versatile nanoscale fibers. In this process, synthetic and natural polymers can be combined to produce novel, blended materials with a range of physical, chemical, and biological properties. We electrospun biocompatible, blended fibrinogen:polycaprolactone (PCL) nanofibers with diameters ranging [...] Read more.
Electrospinning is a process to produce versatile nanoscale fibers. In this process, synthetic and natural polymers can be combined to produce novel, blended materials with a range of physical, chemical, and biological properties. We electrospun biocompatible, blended fibrinogen:polycaprolactone (PCL) nanofibers with diameters ranging from 40 nm to 600 nm, at 25:75 and 75:25 blend ratios and determined their mechanical properties using a combined atomic force/optical microscopy technique. Fiber extensibility (breaking strain), elastic limit, and stress relaxation times depended on blend ratios but not fiber diameter. As the fibrinogen:PCL ratio increased from 25:75 to 75:25, extensibility decreased from 120% to 63% and elastic limit decreased from a range between 18% and 40% to a range between 12% and 27%. Stiffness-related properties, including the Young’s modulus, rupture stress, and the total and relaxed, elastic moduli (Kelvin model), strongly depended on fiber diameter. For diameters less than 150 nm, these stiffness-related quantities varied approximately as D−2; above 300 nm the diameter dependence leveled off. 50 nm fibers were five–ten times stiffer than 300 nm fibers. These findings indicate that fiber diameter, in addition to fiber material, critically affects nanofiber properties. Drawing on previously published data, a summary of the mechanical properties for fibrinogen:PCL nanofibers with ratios of 100:0, 75:25, 50:50, 25:75 and 0:100 is provided. Full article
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