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Polymers
Special Issues
Multi-Functional and Multi-Scale Aspects in Polymer Composites
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Multi-Functional and Multi-Scale Aspects in Polymer Composites

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Composites and Nanocomposites".

Deadline for manuscript submissions: 20 May 2024 | Viewed by 2998

Special Issue Editors

Dr. Vineet Kumar

E-Mail Website
Guest Editor
School of Mechanical Engineering, Yeungnam University, Gyeongsan 712-749, Republic of Korea
Interests: rubber nanocomposites; graphene; carbon nanotube; mechanical properties of polymer nanocomposites; hybrid fillers; elastomers; magneto-rheological elastomers
Special Issues, Collections and Topics in MDPI journals
Dr. Md Najib Alam

E-Mail Website
Guest Editor
School of Mechanical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea
Interests: vulcanization; rubber nanocomposites; energy harvesting; sensors and actuators; magnetorheological elastomers
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Since the last decade, the multi-functional aspects of polymers are being increasingly focused on, especially the elastomeric class that exhibits promising mechanical, electric, thermal, and self-healing properties. These elastomeric materials are filled with conductive materials such as carbon nanotubes, graphene, and conductive carbon black. The addition of these conductive materials causes the elastomers to be useful for industry both in terms of quality and quantity. The composites based on these elastomers as polymer matrices exhibit applications such as actuation, energy harvesting, strain sensing, self-healing, stimuli‒response behavior, barrier properties, and bio-compatibility. The ability of these engineering elastomers with such multiscale and multifunctional diversity causes them to be a premium class of versatile materials for the present and also for the future.

This Special Issue aims to cover the use of these composites as versatile materials in multiscale and their multi-functional aspects. This Issue will guide industrially oriented research and other developmental aspects related to polymer materials. Moreover, the demand for research and development both in industries and academia requires further efforts to cover the versatility of the subject of this Issue. The key aspects summarizing the scope of this issue include:

  • Development of polymer composites based on their multiscale and multifunctional aspects.
  • Different classes of polymer matrixes such as elastomers, thermoplastics, thermosets, etc.
  • Various properties of composites such as mechanical, electrical, thermal, self-healing, and self-cleaning mechanisms, bio-compatibility, tribology, etc.
  • Pristine and modification of filler or polymer matrix covering the concept of promoting interfacial interactions or stress-transfer phenomena.
  • Understanding of the theoretical modeling and simulation on multiple scales and the versatility of polymeric composite materials.
  • New generation polymer composite materials based on 3D and 4D printing
  • Industrial applications of the filled polymer composites such as actuation, energy harvesting, strain sensing, self-healing, stimuli-response behavior, barrier properties, and bio-compatibility.

Dr. Vineet Kumar
Dr. Md Najib Alam
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • multi-functional composites
  • multi-scale simulation
  • elastomers
  • actuations
  • strain-sensors
  • energy harvesters
  • self-healing materials
  • stimuli-response behavior
  • 3D-4D printing
  • bio-compatibility

Published Papers (2 papers)

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Research

18 pages, 5891 KiB  
Article
Properties of Organosilicon Elastomers Modified with Multilayer Carbon Nanotubes and Metallic (Cu or Ni) Microparticles
by Alexander V. Shchegolkov, Aleksei V. Shchegolkov, Natalia V. Zemtsova, Alexandre A. Vetcher and Yaroslav M. Stanishevskiy
Polymers 2024, 16(6), 774; https://doi.org/10.3390/polym16060774 - 11 Mar 2024
Viewed by 585
Abstract
The structural and electro-thermophysical characteristics of organosilicon elastomers modified with multilayer carbon nanotubes (MWCNTs) synthesized on Co-Mo/Al2O3-MgO and metallic (Cu or Ni) microparticles have been studied. The structures were analyzed with scanning electron microscopy (SEM), transmission electron microscopy (TEM), [...] Read more.
The structural and electro-thermophysical characteristics of organosilicon elastomers modified with multilayer carbon nanotubes (MWCNTs) synthesized on Co-Mo/Al2O3-MgO and metallic (Cu or Ni) microparticles have been studied. The structures were analyzed with scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, and energy-dispersive X-ray spectroscopy (EDX). The main focus of this study was the influence of metallic dispersed fillers on the resistance of a modified elastomer with Cu and Ni to the degradation of electrophysical parameters under the action of applied electrical voltage. The distribution of the temperature field on the surface of a modified polymer composite with metallic micro-dimensional structures has been recorded. The collected data demonstrate the possibility of controlling the degradation caused by electrical voltage. It has been found that repeated on/off turns of the elastomer with an MWCNTs on 50 and 100 cycles leads to a deterioration in the properties of the conductive elastomer from the available power of 1.1 kW/m2 (−40 °C) and, as a consequence, a decrease in the power to 0.3 kW/m2 (−40 °C) after 100 on/off cycles. At the same time, the Ni additive allows increasing the power by 1.4 kW/m2 (−40 °C) and reducing the intensity of the degradation of the conductive structures (after 100 on/off cycles up to 1.2 kW/m2 (−40 °C). When Ni is replaced by Cu, the power of the modified composite in the heating mode increases to 1.6 kW/m2 (−40 °C) and, at the same time, the degradation of the conductive structures in the composite decreases in the mode of cyclic offensives (50 and 100 cycles) (1.5 kW/m2 (−40 °C)). It was found that the best result in terms of heat removal is typical for an elastomer sample with an MWCNTs and Cu (temperature reaches 93.9 °C), which indicates an intensification of the heat removal from the most overheated places of the composite structure. At the same time, the maximum temperature for the Ni additives reaches 86.7 °C. A sample without the addition of a micro-sized metal is characterized by the local unevenness of the temperature field distribution, which causes undesirable internal overheating and destruction of the current-conducting structures based on the MWCNTs. The maximum temperature at the same time reaches a value of 49.8 °C. The conducted studies of the distribution of the micro-sizes of Ni and Cu show that Cu, due to its larger particles, improves internal heat exchange and intensifies heat release to the surface of the heater sample, which improves the temperature regime of the MWCNTs and, accordingly, increases resistance to electrophysical degradation. Full article
(This article belongs to the Special Issue Multi-Functional and Multi-Scale Aspects in Polymer Composites)
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16 pages, 4329 KiB  
Article
Eco-Friendly Natural Rubber–Jute Composites for the Footwear Industry
by Giovanni Barrera Torres, Carlos T. Hiranobe, Erivaldo Antonio da Silva, Guilherme P. Cardim, Henrique P. Cardim, Flavio C. Cabrera, Elizabeth R. Lozada, Carlos M. Gutierrez-Aguilar, Juan C. Sánchez, Jaime A. Jaramillo Carvalho, Aldo E. Job and Renivaldo J. Santos
Polymers 2023, 15(20), 4183; https://doi.org/10.3390/polym15204183 - 21 Oct 2023
Cited by 1 | Viewed by 1637
Abstract
Nowadays, biocomposites represent a new generation of materials that are environmentally friendly, cost-effective, low-density, and not derived from petroleum. They have been widely used to protect the environment and generate new alternatives in the polymer industry. In this study, we incorporated untreated jute [...] Read more.
Nowadays, biocomposites represent a new generation of materials that are environmentally friendly, cost-effective, low-density, and not derived from petroleum. They have been widely used to protect the environment and generate new alternatives in the polymer industry. In this study, we incorporated untreated jute fibers (UJFs) and alkaline-treated jute fibers (TJFs) at 1–5 and 10 phr into TSR 10 natural rubber as reinforcement fillers. These composites were produced to be used in countersole shoes manufacturing. Untreated fibers were compared to those treated with 10% sodium hydroxide. The alkali treatment allowed the incorporation of fibers without compromising their mechanical properties. The TJF samples exhibited 8% less hardness, 70% more tensile strength, and the same flexibility compared to their pure rubber counterparts. Thanks to their properties and ergonomic appearance, the composites obtained here can be useful in many applications: construction materials (sound insulating boards, and flooring materials), the automotive industry (interior moldings), the footwear industry (shoe soles), and anti-static moldings. These new compounds can be employed in innovative processes to reduce their carbon footprint and negative impact on our planet. Using the Lorenz–Park equation, the loaded composites examined in this study exhibited values above 0.7, which means a competitive load–rubber interaction. Scanning electron microscopy (SEM) was used to investigate the morphology of the composites in detail. Full article
(This article belongs to the Special Issue Multi-Functional and Multi-Scale Aspects in Polymer Composites)
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