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Polymers
Special Issues
Carbon-Based Polymer Nanocomposites: Preparation, Characterization, and Applications
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Carbon-Based Polymer Nanocomposites: Preparation, Characterization, and Applications

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

Deadline for manuscript submissions: 25 July 2024 | Viewed by 2759

Special Issue Editor

Prof. Dr. Jea Uk Lee

E-Mail Website
Guest Editor
Department of Advanced Materials Engineering for Information and Electronics, Integrated Education Institute for Frontier Science and Technology (BK21 Four), Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si 17104, Gyeonggi-do, Republic of Korea
Interests: nanocarbon synthesis; preparation of composites; lithium ion battery
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue focuses on the preparation and characterization of carbon-based polymer nanocomposites, aiming to improve the mechanical and functional properties of polymer materials. The Special Issue deals with the fabrication techniques employed to incorporate carbon materials into polymer matrices, exploring various methods like solution blending, melt processing, and chemical vapor deposition. Each method offers distinct advantages and challenges, affecting the dispersion and alignment of carbon materials within the polymer matrix. Understanding these fabrication techniques is crucial to achieving optimal composite properties. The characterization process employs a range of sophisticated analytical techniques, which methods provide valuable insights into the composite's microstructure, mechanical behavior, thermal stability, and electrical conductivity.

This Special Issue, “Carbon-Based Polymer Nanocomposites: Preparation, Characterization, and Applications”, aims to be a collection of high-quality original/review papers focusing on recent progress in new preparation and applications of Carbon-based polymer nanocomposites, including (a) synthesis and surface modification of carbon materials, (b) tailored control of carbon materials’ size, concentration, and orientation in polymer matrix, (c) interfacial property control between carbon materials and polymer matrix, (d) evaluation of the carbon materials dispersion state in the polymer matrix, (e) development of new applications by using carbon-based polymer nanocomposites and various nanocomposites.

Prof. Dr. Jea Uk Lee
Guest Editor

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

  • carbon materials
  • polymer
  • nanocomposites
  • preparation
  • characterization
  • applications

Published Papers (3 papers)

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Research

17 pages, 4451 KiB  
Article
Enhanced Mechanical and Thermal Properties of Polyimide Films Using Hydrophobic Fumed Silica Fillers
by Jongin Yeob, Sung Woo Hong, Won-Gun Koh and In Park
Polymers 2024, 16(2), 297; https://doi.org/10.3390/polym16020297 - 22 Jan 2024
Viewed by 881
Abstract
Polyimide (PI) composite films with enhanced mechanical properties were prepared by incorporating modified fumed silica (FS) particles while preserving their optical and thermal characteristics. The PI matrix was synthesized using a fluorinated diamine, a fluorinated dianhydride, and a rigid biphenyl dianhydride via chemical [...] Read more.
Polyimide (PI) composite films with enhanced mechanical properties were prepared by incorporating modified fumed silica (FS) particles while preserving their optical and thermal characteristics. The PI matrix was synthesized using a fluorinated diamine, a fluorinated dianhydride, and a rigid biphenyl dianhydride via chemical imidization. Commercially available FS particles, including unmodified FS particles (0-FS) and particles modified with dimethyl (2-FS), trimethyl (3-FS), octyl (8-FS), octamethylcyclotetrasiloxane (D4-FS), and polydimethylsiloxane (PDMS-FS) were used. Scanning electron microscope images and nitrogen adsorption–desorption isotherms revealed well-defined porous structures in the FS particles. The water contact angles on the composite films increased compared to those of the pristine PI films, indicating improved water resistance. The PI/0-FS films exhibited a typical trade-off relationship between tensile modulus and elongation at break, as observed in conventional composites. Owing to the poor compatibility and agglomeration of the PDMS-FS particles, the PI/PDMS-FS composite films exhibited poor mechanical performance and diminished optical characteristics. Although the longer-chained FS particles (8- and D4-FS) improved the tensile modulus of the PI film by up to 12%, a reduction of more than 20% in toughness was observed. The PI composite films containing the methylated FS particles (2- and 3-FS) outperformed 8- and D4-FS in terms of mechanical properties, with PI/3-FS films showing an over 10% increased tensile modulus (from 4.07 to 4.42 GPa) and 15% improved toughness (from 6.97 to 8.04 MJ/m3) at 7 wt. % silica loading. Except for the PI/PDMS-FS composites, all composite film samples exhibited more than 86% transmittance at 550 nm. Regarding thermal properties, the glass transition temperature (Tg) and thermal stability remained stable for most composite films. In addition, PI/3-FS films demonstrated enhanced dimensional stability with lower coefficients of thermal expansion (from 47.3 to 34.5 ppm/°C). Overall, this study highlights the potential of incorporating specific modified FS particles to tailor the mechanical, optical, and thermal properties of PI composite films. Full article
(This article belongs to the Special Issue Carbon-Based Polymer Nanocomposites: Preparation, Characterization, and Applications)
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13 pages, 10218 KiB  
Article
Dielectrophoretically Assembled SWCNTs Networks on SU-8 Substrate for PEG/SWCNTs Composite Gas Sensor
by Jin-Chern Chiou, Chin-Cheng Wu, Tse-Mei Lin and Yu-Chieh Huang
Polymers 2024, 16(1), 74; https://doi.org/10.3390/polym16010074 - 26 Dec 2023
Viewed by 593
Abstract
This study proposed a SU-8 based gas sensor, integrated with heater and sensing electrodes, to develop a multi-channel gas sensor with PEG/SWCNTs composite films. The impedance of single-walled carbon nanotubes (SWCNTs) on each sensing electrode was well controlled via dielectrophoresis technology. To investigate [...] Read more.
This study proposed a SU-8 based gas sensor, integrated with heater and sensing electrodes, to develop a multi-channel gas sensor with PEG/SWCNTs composite films. The impedance of single-walled carbon nanotubes (SWCNTs) on each sensing electrode was well controlled via dielectrophoresis technology. To investigate dielectrophoretic mobility characteristics, the concentric circular sensing electrode has three different spacing between the inner and outer electrodes, including 10 μm, 15 μm, and 20 μm. The electrodes were applied with a 5 MHz AC source with a voltage ranging from 1 Vpp to 5 Vpp. Polyethylene glycol (PEG) was deposited on the gas sensor via drop casting. The fabricated gas sensor was operated at different working temperatures, including 25 °C, 40 °C, 50 °C and 60 °C, to examine the sensing response. The response results revealed that the PEG/SWCNTs composites gas sensor with 60 °C working temperature exhibited the ability to detect 80 ppm ethanol vapor. Full article
(This article belongs to the Special Issue Carbon-Based Polymer Nanocomposites: Preparation, Characterization, and Applications)
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16 pages, 2837 KiB  
Article
Highly Self-Healable Polymeric Coating Materials Based on Charge Transfer Complex Interactions with Outstanding Weatherability
by Pyong Hwa Hong, Gyeongmin Moon, Jinsil Kim, Kiwon Choi, Min Jae Ko, Ho Gyu Yoon and Sung Woo Hong
Polymers 2023, 15(23), 4544; https://doi.org/10.3390/polym15234544 - 27 Nov 2023
Viewed by 872
Abstract
In this study, we prepare highly self-healable polymeric coating materials using charge transfer complex (CTC) interactions. The resulting coating materials demonstrate outstanding thermal stability (1 wt% loss thermal decomposition temperature at 420 °C), rapid self-healing kinetics (in 5 min), and high self-healing efficiency [...] Read more.
In this study, we prepare highly self-healable polymeric coating materials using charge transfer complex (CTC) interactions. The resulting coating materials demonstrate outstanding thermal stability (1 wt% loss thermal decomposition temperature at 420 °C), rapid self-healing kinetics (in 5 min), and high self-healing efficiency (over 99%), which is facilitated by CTC-induced multiple interactions between the polymeric chains. In addition, these materials exhibit excellent optical properties, including transmittance over 91% and yellow index (YI) below 2, and show enhanced weatherability with a ΔYI value below 0.5 after exposure to UV light for 72 h. Furthermore, the self-healable coating materials developed in this study show outstanding mechanical properties by overcoming the limitations of conventional self-healing materials. Full article
(This article belongs to the Special Issue Carbon-Based Polymer Nanocomposites: Preparation, Characterization, and Applications)
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