Article
Polymer Science
Nicoleta-Violeta Stanciu, Felicia Stan, Ionut-Laurentiu Sandu, Catalin Fetecau, Adriana-Madalina Turcanu
Summary: This paper investigated the material properties of polypropylene (PP) nanocomposites filled with multi-walled carbon nanotubes (MWCNTs) and found that the addition of MWCNTs affects the melt shear viscosity, specific volume, thermal conductivity, mechanical properties, and electrical properties of the materials. The study revealed that increasing MWCNT loading results in higher melt shear viscosity, lower specific volume, thermal conductivity below 0.35 W/m·K, and the nanocomposite becomes electrically conductive at 3 wt.% loading.
Article
Polymer Science
Miks Bleija, Oskars Platnieks, Jan Macutkevic, Juras Banys, Olesja Starkova, Liga Grase, Sergejs Gaidukovs
Summary: A hybrid filler approach was chosen to address EMI pollution, with a focus on absorbance. Carbon nanofiller loading was limited to 0.6 vol.% to create a sustainable and affordable solution. Multiwall carbon nanotubes (MWCNT) and iron oxide (Fe3O4) nanoparticles were mixed in various ratios, achieving particle dispersion in a bio-based and biodegradable matrix. The nanocomposites showed promising results for EMI shielding, with high absorption at 30 GHz and reduced transmittance in the terahertz range.
Article
Materials Science, Composites
Nasim Jan Mohammadi Dashtaki, Amir Hossein Nassajpour-Esfahani, Morteza Bayareh, Pouya Rezai, Ali Doostmohammadi
Summary: The study found that the properties of nanocomposites were dependent on the concentration of CNTs. Nanocomposites fabricated in a quasi-AC electric field showed more uniform and non-agglomerated characteristics. With 1 wt% of CNT, the nanocomposite exhibited suitable electrical conductivity and mechanical properties for microfluidic devices.
JOURNAL OF COMPOSITE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Chris J. Barnett, Alvin Orbaek White, Andrew R. Barron
Summary: It has been discovered that residual catalyst particles from the growth of multi-walled carbon nanotubes (MWCNTs) negatively impact their performance. Measurements of electrical transport have shown that the size of the catalyst particles and the ratio of their diameter to the MWCNT diameter affect the conduction mechanism.
Article
Polymer Science
Kittimon Jirakittidul, Darawan Limthin, Sarita Mahithithummathorn, Seenam Phaewchimphlee
Summary: The effect of annealing on the selective dispersion of multi-walled carbon nanotubes (MWCNTs) in thermoplastic polyurethane (PU) nanocomposites was studied. It was found that annealing promoted the development of MWCNT networks, resulting in higher electrical conductivity levels.
Article
Chemistry, Physical
Kwang Se Lee, Isheunesu Phiri, Sang Hern Kim, Kyeongkeun Oh, Jang Myoun Ko
Summary: The electrical properties of silicone composite films filled with silver nanoparticle-decorated multi-walled carbon nanotubes were investigated. By modifying the surface of MWNT with APDMS and Ag nanoparticles, the surface electrical conductivity of the composite films was improved, expanding their potential applications.
Article
Thermodynamics
P. Ganesh Kumar, Rajendran Prabakaran, D. Sakthivadivel, P. Somasundaram, V. S. Vigneswaran, Sung Chul Kim
Summary: The main theme of this study is to investigate the influence of ultrasonication time on the colloidal stability and thermal conductivity of multi-walled carbon nanotubes-Therminol 55 based nanofluid. The results show that an increase in ultrasonication time up to 120 min enhances the colloidal stability of the nanofluid samples, but prolonging the time weakens the stability. The thermal conductivity of the nanofluid is affected by both temperature and MWCNT concentration, and increasing the ultrasonication time significantly improves the thermal conductivity.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Chemistry, Multidisciplinary
LeLe Xu, XinYu Jiao, Chao Shi, Hui-Ming Cheng, Peng-Xiang Hou, Chang Liu, An-Ping Wu
Summary: A single-walled carbon nanotube (SWCNT)/Cu core-shell fiber was successfully fabricated by coating a dense and uniform Cu shell on the surface of wet-spun SWCNT fibers using a combination of magnetron sputtering and electrochemical deposition. This hybrid fiber outperforms commercial Cu wires in terms of specific electrical conductivity and current carrying capacity, with a specific electrical conductivity of (1.01 +/- 0.04) x 104 S m2 kg-1, 56% higher than Cu, and a current carrying capacity three times that of commercial Cu wires. It also retains its integrity and conductivity after more than 5000 bending cycles.
Article
Engineering, Environmental
Mirtha A. O. Lourenco, Marco Fontana, Pravin Jagdale, Candido Fabrizio Pirri, Sergio Bocchini
Summary: In this study, multi-walled carbon nanotubes with different functionalities were chemically modified with N1-(3-trimethoxysilylpropyl)diethylenetriamine (DETASi) to enhance CO2 adsorption/separation properties. Among the functionalized samples, COOH-modified MWCNT showed the highest CO2 adsorption capacity after DETASi modification. Additionally, the selectivity for CO2/N2 separation was improved after DETASi grafting reaction.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Byeonghwa Goh, Keon Jung Kim, Chae-Lin Park, Eun Sung Kim, Shi Hyeong Kim, Joonmyung Choi
Summary: This study focuses on the in-plane heat transfer behavior of a coiled multi-walled carbon nanotube (MWCNT) yarn, investigating the significant change in thermal conductivity under mechanical strain and using molecular dynamics simulations to confirm the key factor in heat transfer paths during mechanical loading. The results are crucial for understanding the thermal properties of MWCNT yarn applications such as twistron energy harvesters.
Article
Nanoscience & Nanotechnology
Jake Dudley Mehew, Marina Y. Timmermans, David Saleta Reig, Stefanie Sergeant, Marianna Sledzinska, Emigdio Chavez-Angel, Emily Gallagher, Clivia M. Sotomayor Torres, Cedric Huyghebaert, Klaas-Jan Tielrooij
Summary: Nanomaterials, particularly carbon nanotubes (CNTs), are promising candidates for applications requiring high thermal conductivity. In this study, the thermal conductivity of free-standing double-walled CNT films was measured using all-optical Raman thermometry, showing significantly enhanced thermal conduction compared to single-walled CNT films. This research contributes to a better understanding of these nanomaterials and their suitability for extreme ultraviolet (EUV) lithography.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Composites
Mohammad Shadabfar, Morteza Ehsani, Hossein Ali Khonakdar, Majid Abdouss
Summary: This study successfully prepared a novel conducting polymer nanocomposite by chemically modifying carbon nanotubes and using carboxymethyl cellulose. The results showed improved dispersion and electrochemical properties for the nanocomposite containing oxidized carbon nanotubes.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Multidisciplinary
Jung-Eun Lee, Jung Hoon Kim, Joong Tark Han, Han Gi Chae, Youngho Eom
Summary: Carbon films with ultrahigh electrical conductivity and mechanical modulus are prepared by high temperature carbonization of polyacrylonitrile (PAN)/single-walled carbon nanotube (SWNT) nanocomposites. The exceptional performance is attributed to the remarkable graphitic crystallinity achieved through the templating-coalescing behavior of SWNT bundles. Compared to graphene oxide (GO) containing carbon films, PAN/B-CNT carbon films exhibit higher crystallinity, resulting in exceptional electrical conductivity and mechanical modulus.
Article
Materials Science, Multidisciplinary
Xiangnan Yu, Yang Jiang, Xiao Yang, Zhaoheng Cai, Yang Hua, Shichun Yang, Huizhi Wang, Xinhua Liu, Liliang Wang
Summary: The freestanding PDCNT film demonstrated low mass density, excellent flexibility, and high electrochemical stability, while the HSSi-PDCNT anode delivered a specific capacity of 750 mAh g(-1) after 200 cycles. The innovative and simple fabricating method proposed in this study can be widely used to develop high-performance flexible current collectors, especially in the application of LIBs.
Article
Materials Science, Multidisciplinary
R. M. Rudenko, O. O. Voitsihovska, V. N. Poroshin
Summary: The paper presents the results of a study on radiation defects in single-walled carbon nanotube (SWCNT) bundles at low temperatures. The experiment combined 1 MeV electron irradiation and electrical conductivity measurements to investigate the influence of stable and unstable radiation defects on the electrical properties of SWCNTs. It was found that the 2D Mott variable range hopping conduction regime exhibits resistance to electron irradiation.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yasin Kanbur, Umit Tayfun
JOURNAL OF ELASTOMERS AND PLASTICS
(2019)
Article
Chemistry, Physical
Mihai Irimia-Vladu, Yasin Kanbur, Fausta Camaioni, Maria Elisabetta Coppola, Cigdem Yumusak, Cristian Vlad Irimia, Angela Vlad, Alessandra Operamolla, Gianluca M. Farinola, Gian Paolo Suranna, Natalia Gonzalez-Benitez, Maria Carmen Molina, Luis Fernando Bautista, Heinz Langhals, Barbara Stadlober, Eric Daniel Glowacki, Niyazi Serdar Sariciftci
CHEMISTRY OF MATERIALS
(2019)
Article
Materials Science, Composites
Sedef Sismanoglu, Umit Tayfun, Yasin Kanbur
Summary: In this study, eco-grade thermoplastic polyurethane (TPU) with 46% renewable content was enhanced with date palm seed (DPS). Surface treatments, including alkali and silane treatments, were applied to the DPS to improve its compatibility with the TPU matrix. The results showed that the silane treatment significantly improved the mechanical properties of the composites due to the enhanced compatibility and interface adhesion between DPS and TPU. The treated DPS-containing composites exhibited higher storage modulus and glass transition temperature compared to the composites filled with pristine DPS. The addition of DPS also increased the thermal stability of the flexible segment of TPU, regardless of the surface treatment. Moreover, the DPS loadings caused a significant increase in the melt flow index (MFI) value of unfilled TPU. The silane-treated DPS-containing composite exhibited the lowest water uptake value among the samples, indicating its hydrophobicity. The SEM micrographs confirmed the improved interface adhesion between DPS and TPU in the silane-treated composite.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Mehmet Yurderi, Ahmet Bulut, Gulsah Saydan Kanberoglu, Murat Kaya, Yasin Kanbur, Mehmet Zahmakiran
Article
Materials Science, Multidisciplinary
Fatma Kucuk, Sedef Sismanoglu, Yasin Kanbur, Umit Tayfun
MATERIALS CHEMISTRY AND PHYSICS
(2020)
Article
Chemistry, Multidisciplinary
Cigdem Yumusak, Felix Mayr, Dominik Wielend, Bilge Kahraman, Yasin Kanbur, Heinz Langhals, Mihai Irimia-Vladu
Summary: A comprehensive material characterization of 1,7-diazaperylene was conducted via multiple investigation techniques to understand its applicability in organic electronic devices, showing that it functions effectively as a dielectric layer in the devices.
ISRAEL JOURNAL OF CHEMISTRY
(2022)
Article
Energy & Fuels
Sedef Sismanoglu, Umit Tayfun, Carmen-Mihaela Popescu, Yasin Kanbur
Summary: The study demonstrates that olive pulp can be utilized as a resource and surface modification with silanes effectively solves the issue of incompatibility with thermoplastic polyurethane matrix. Adding olive pulp to composite materials significantly enhances their properties, producing environmentally friendly composites with high hardness and wear resistance.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Chemistry, Multidisciplinary
Metehan Ogulcan Lap, Yasin Kanbur, Umit Tayfun
Summary: In this study, mussel shell powder was utilized as an additive for bio-degradable poly (lactic acid) to fabricate green composites. The effects of mussel shell powder inclusion on mechanical, melt-flow, water uptake, and morphological performance of the composites were investigated. The composites were prepared using conventional melt mixing technique followed by injection moulding process.
CHEMISTRY & CHEMICAL TECHNOLOGY
(2021)
Article
Energy & Fuels
Sedef Sismanoglu, Umit Tayfun, Petronela Gradinariu, Carmen-Mihaela Popescu, Yasin Kanbur
Summary: The study demonstrates that surface treatment of black cumin with silane can improve the biodegradability and other properties of eco-composites. The experiment results show that surface-modified black cumin with different functionalized silanes exhibits optimum performance in terms of thermal and thermo-mechanical analysis.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Green & Sustainable Science & Technology
Jelena Ivic, Andreas Petritz, Cristian Vlad Irimia, Bilge Kahraman, Yasin Kanbur, Mateusz Bednorz, Cigdem Yumusak, Muhammad Awais Aslam, Aleksandar Matkovic, Klara Saller, Clemens Schwarzinger, Wolfgang Schuehly, Annika Smeds, Yolanda Salinas, Manuela Schiek, Felix Mayr, Chunlin Xu, Christian Teichert, Mariana Osiac, Niyazi Serdar Sariciftci, Barbara Stadlober, Mihai Irimia-Vladu
Summary: Natural dielectrics are becoming more popular for their biocompatibility and biodegradability in electronics and sensors. Silver fir and Rocky mountain fir demonstrate robust dielectric properties without traps, and the inclusion of inorganic nanofillers opens up possibilities for high dielectric constant insulating layers in low voltage OFETs.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Article
Green & Sustainable Science & Technology
Rosarita D'Orsi, Cristian Vlad Irimia, Jeannette J. Lucejko, Bilge Kahraman, Yasin Kanbur, Cigdem Yumusak, Mateusz Bednorz, Francesco Babudri, Mihai Irimia-Vladu, Alessandra Operamolla
Summary: Lignin is an abundant biopolymer derived from industrial pulping processes, but its application as a fine material is limited due to the lack of knowledge about its molecular structure and properties. This study analyzes the structural and chemical-physical characteristics of two kraft lignins and demonstrates their efficient application as gate dielectric materials in organic field-effect transistors.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Article
Materials Science, Multidisciplinary
Nurhan Cevik Elen, Musa Yildirim, Yasin Kanbur
Summary: Green composites with enhanced impact and tribological properties were prepared using 30 wt.% hemp fibers reinforced polylactic acid (PLA). Different surface treatments and compatibilizer were applied to improve interfacial adhesion between fibers and matrix. The modified composites showed better tribological properties and increased hardness and wear resistance. The TPU blended bio-composite exhibited the highest impact strength. Scanning electron microscope images showed good bonding between fiber and matrix, and the formation of a protective thin film layer increased the wear performance of the bio-composites.
FUNCTIONAL COMPOSITES AND STRUCTURES
(2023)
Article
Materials Science, Composites
Sena Kabave Kilincarslan, M. Huseyin Cetin, Yasin Kanbur, Sedef Sismanoglu, Refik Polat
Summary: This study investigated the production, characterization, mechanical and tribological performance of surface-modified cow bone powder-reinforced composites. The primary goal was to increase the tribological and mechanical performance of sustainable and cleanly produced composite materials. It was determined that the surface-modified bone powder reinforcement increased the mechanical, thermal, and wear resistance of the polymer. The best surface modification method was determined as silanization, which reduced the friction coefficient and weight loss by 16.60% and 40.0%, respectively, according to the main factor analysis. In addition, it increased the glass transition temperature by 45.54%, crystallization by 2.93%, hardness by 2.70%, and tensile strength by 9.26% compared to the unmodified bone powder reinforcement.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Multidisciplinary
Donia Saadi, Felix Mayr, Cigdem Yumusak, Dominik Wielend, Munise Cobet, Bilge Kahraman, Cristian Vlad Irimia, Yasin Kanbur, Mateusz Bednorz, Kamil Kotwica, Amel Ben Fredj, Samir Romdhane, Markus C. Scharber, Niyazi Serdar Sariciftci, Mihai Irimia-Vladu
Summary: This study reports a novel class of commercially available N,N'-substituted quinacridones for organic electronics. In-depth investigations were performed on the material properties of these molecules including their optical and charge transport properties, infrared-active vibrations (FTIR), electrochemical reduction and oxidation properties, thin film forming and processability, and performance in organic field effect transistor devices. The results reveal that substitution plays a critical role in the charge transport properties, with methyl substituted amine being the most favorable, followed by di-phenyl and finally di-butyl.
MATERIALS ADVANCES
(2023)
Article
Green & Sustainable Science & Technology
Fatma Kucuk, Sedef Sismanoglu, Yasin Kanbur, Umit Tayfun
Summary: The present paper investigates the effect of diatomite on mechanical, thermo-mechanical, and morphological properties of thermoplastic polyurethane composites, finding a positive impact up to 30% diatomite content. However, further addition of diatomite caused remarkable reductions in related properties.
CLEANER ENGINEERING AND TECHNOLOGY
(2021)
