Article
Engineering, Environmental
Meysam Salari, Nello D. Sansone, Zahir Razzaz, Sara Mohseni Taromsori, Matthew Leroux, Chul B. Park, Patrick C. Lee
Summary: In this study, a combined hybrid and hierarchical approach was utilized to enhance the multifunctional properties of carbon-based composites. The addition of glass fibers (GFs) as a secondary micro-sized filler, along with a coating of graphene nanoplatelets (GNPs) on polypropylene (PP) composites, resulted in significant improvements in electrical conductivity, permittivity, electromagnetic shielding effectiveness, thermal conductivity, and tensile strength. These enhancements make the hybrid composites suitable for various practical applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Manufacturing
Dineshkumar Mani, Minh Canh Vu, Tae-Hyeong Jeong, Jun-Beom Kim, Choong-Sun Lim, Jung-Hyuk Lim, Kyung-Min Kim, Sung-Ryong Kim
Summary: By coating graphene fluoride on the cell walls of polyurethane foam and mixing it with epoxy resin, a thermally conducting composite with significantly enhanced thermal conductivity and electrical insulation was successfully fabricated.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Materials Science, Composites
Reza Chenari, Mohammad Fasihi
Summary: The current study explores the use of SiC and GNP fillers to improve the thermal conductivity, mechanical, and electrical insulation properties of epoxy resin. The results demonstrate that both fillers enhance the thermal conductivity of the epoxy resin, while maintaining its electrical insulation properties. In addition, the filler-matrix adhesion leads to a significant improvement in the impact strength of the composites.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Multidisciplinary
Zelong Wang, Dajun Hou, Jungang Yi, Ning Cai, Jia Guo
Summary: In this study, barium titanate coated Cu core-shell particles were prepared and used as thermal conductive fillers to enhance the thermal conductivity of epoxy matrix, achieving a 580% increase at a loading of 10 vol%. The composites also showed high electrical insulation due to the insulative BaTiO3 layer on the Cu surface. This research provides a new perspective on the design of functionalized core-shell thermal conductive fillers for high-performance thermal interface materials.
Article
Materials Science, Composites
Nhat Anh Thi Thieu, Dineshkumar Mani, Jong Chan Won, Kyung-Yol Yon, Minh Canh Vu, Sung-Ryong Kim
Summary: Graphene fluoride (GF) is a new derivative of graphene with excellent thermal conductivity and insulation properties. The fabrication of vertically aligned GF scaffolds using the freeze-casting method improves the thermal conductivity of epoxy composites and demonstrates insulation properties.
POLYMER COMPOSITES
(2022)
Article
Nanoscience & Nanotechnology
Hang Chi, Zewen Lin, Yuxin Chen, Renhao Zheng, Hong Qiu, Xiaolan Hu, Hua Bai
Summary: This paper reports on the direct ink writing 3D printing of multifunctional composite materials based on commercial epoxy resin and the recycling of printed composite materials. By adding graphene nanoplatelets as a thixotropic additive, the liquid epoxy resin can be shear-thinning and suitable for direct ink printing. The printed composite materials have high resolution, high mechanical strength, as well as high thermal and electrical conductivity, and fast thermo-induced shape memory response. The printed objects can be recycled by comminuting them into micropowders and used as a thixotropic agent for preparing recycled DIW ink.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Polymer Science
Sotirios Kopsidas, Ganiu B. Olowojoba
Summary: Epoxy polymers were modified with a hybrid nanofiller containing graphene nanoplatelets (GNPs) and carbon nanotubes (CNTs) at a mass ratio of 9:1, resulting in a significant increase in electrical conductivity and fracture energy. The reduced percolation threshold was attributed to CNTs, while the increased toughness was mainly due to GNPs through crack deflection. The toughening contribution of the hybrid nanofiller was accurately predicted using analytical modeling.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Composites
Yalin Zhao, Zhixiong Wu, Shibin Guo, Zhengrong Zhou, Zhicong Miao, Shiyong Xie, Rongjin Huang, Laifeng Li
Summary: The HPB-GO nanocomposite prepared by grafting hyperbranched polymer exhibits excellent mechanical and thermal properties, improving the application performance of epoxy resin.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Composites
Yue Zhang, Hui He, Bai Huang, Shuzhan Wang, Xuefeng He
Summary: Chitin was used to prepare chitin nanowhiskers, and two hybrid materials were prepared to enhance the thermal conductivity of PVA composites. The addition of hydroxylated carbon nanotubes further improved the thermal conductivity of the composite material.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Review
Chemistry, Multidisciplinary
Yingfeng Wen, Chao Chen, Yunsheng Ye, Zhigang Xue, Hongyuan Liu, Xingping Zhou, Yun Zhang, Dequn Li, Xiaolin Xie, Yiu-Wing Mai
Summary: The integrated circuits industry is producing microelectronic components with higher integration levels, packaging density, and power density, which require better heat dissipation. Among various packaging materials, commonly used capillary underfill materials have low thermal conductivity, which cannot meet the heat dissipation requirements of high-power density IC chips.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ruicong Lv, Haichang Guo, Lei Kang, Akbar Bashir, Liucheng Ren, Hongyu Niu, Shulin Bai
Summary: With the development of the electronics industry, there is an increasing demand for packaging materials with high thermal conductivity and low electrical conductivity. Graphene, with its high thermal conductivity and electrical conductivity, has the potential to enhance the thermal conductivity of epoxy composites. However, the high electrical conductivity of graphene limits its application in cases where electrical insulation is required. A solution to this challenge is to coat graphene sheets with an in-situ grown Al2O3 layer, resulting in epoxy-based composites with both high thermal conductivity and low electrical conductivity.
Article
Engineering, Chemical
Eric D. Schmid, N. Krishnan P. Veluswamy, Andrew M. Klose, James E. Fesmire, David R. Salem
Summary: Graphene nanomaterials can enhance both the thermal and mechanical properties of polymers, but for thermal insulation foam, the addition of graphene must not increase the thermal conductivity significantly. By adding reduced graphene oxide nanoplatelets into epoxy formulations, the specific flexural modulus of the microchannel foam was improved by 226% at a low loading of only 0.15%, while maintaining the foam's low thermal conductivity. These nanocomposite foams have multifunctional properties and are suitable for high-performance structural thermal insulation materials.
POLYMER ENGINEERING AND SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Maedeh Saberi, Reza Ansari, Mohammad Kazem Hassanzadeh-Aghdam
Summary: This study investigates the effect of graphene nanoplatelet (GNP) additives on the electrical conductivity of short carbon fiber (SCF)-reinforced polymer multifunctional composites. A multi-step physics-based approach is developed to determine the effective electrical conductivity of SCF/GNP/polymer composites. The study considers changes in volume fraction, aspect ratio, interphase thickness, nanofiller tunneling distance, and fiber material property to understand the influence of microstructures on the electrical conducting behavior of the composites.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Mohammad Asraf Alif Ahmad, Mohd Ridzuan Mohd Jamir, Mohd Shukry Abdul Majid, Mohamad Reda A. Refaai, Cheng Ee Meng, Maslinda Abu Bakar
Summary: In this study, the damage self-sensing and strain monitoring of glass-reinforced epoxy composites impregnated with graphene nanoplatelets (GNPs) and multiwalled carbon nanotubes (MWCNTs) were investigated. The electrical properties and mechanical properties of the composites were improved by adding nanofillers.
NANOTECHNOLOGY REVIEWS
(2022)
Article
Energy & Fuels
Chaudhry Usman, Abdelnasser Mabrouk, Ahmed Abdala
Summary: In this study, enhanced thermal conductivity of low-density polyethylene (LDPE) with granulated graphene was achieved. The dispersal of granulated graphene in LDPE and its broad size distribution contributed to significant increase in thermal conductivity. Additionally, the theoretical model provided accurate prediction of thermal conductivity versus filler loading.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Mikko Ruoho, Janne-Petteri Niemela, Carlos Guerra-Nunez, Natalia Tarasiuk, Georgina Robertson, Aidan A. Taylor, Xavier Maeder, Czeslaw Kapusta, Johann Michler, Ivo Utke
Article
Physics, Applied
Wen-Bin Wu, Julia Kasiuk, Thi Ngoc Anh Nguyen, Janusz Przewoznik, Julia Fedotova, Czeslaw Kapusta, Olga Kupreeva, Serguei Lazarouk, Khanh Tung Do, Thanh Huong Nguyen, Hong Ky Vu, Hoai Linh Pham, Dinh Lam Vu, Johan Akerman
JOURNAL OF APPLIED PHYSICS
(2020)
Article
Thermodynamics
Jakub Jurczyk, Cristiano Glessi, Katarzyna Madajska, Luisa Berger, Jeroen Ingolf Ketele Nyrud, Iwona Szymanska, Czeslaw Kapusta, Mats Tilset, Ivo Utke
Summary: The study compared vacuum and ambient pressure inert gas thermogravimetry on silver carboxylates compounds, revealing significant differences in sublimation behavior and thermal stability. Vacuum thermogravimetry was found to be a fast method for pre-screening low-volatility precursors, which is important for thin film synthesis and nanomanufacturing processes.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Chemistry, Physical
Lukasz Latka, Kamil Goc, Czeslaw Kapusta, Szczepan Zapotoczny
Summary: By grafting poly(acrylamide) brushes onto the surface of graphene, GO_PAAM was created to improve the thermal conductivity of polyamide-6 (PA6) nanocomposites. The strong interfacial interactions between the brushes and the PA6 matrix also enhanced the tensile strength of the nanocomposite.
Article
Nanoscience & Nanotechnology
Karolina Karnas, Tomasz Straczek, Czeslaw Kapusta, Matorzata Lekka, Joanna Dulinska-Litewka, Anna Karewicz
Summary: The novel nanoparticulate system showed specific interaction with cancer cells expressing N-cadherin on the surface, and successfully conducted magnetic capture experiments, indicating the potential for capturing circulating tumor cells.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2021)
Article
Chemistry, Physical
Kamil Goc, Janusz Przewoznik, Katarzyna Witulska, Leszek Chlubny, Waldemar Tokarz, Tomasz Straczek, Jan Marek Michalik, Jakub Jurczyk, Ivo Utke, Jerzy Lis, Czeslaw Kapusta
Summary: This study examined the properties of Ti3Al1-xSixC2 MAX-phase alloys, showing good crystal structure, metallic properties with high residual resistivity, and a small positive magnetoresistance effect. Silicon doping had a weak impact on resistivity while the magnetoresistance exhibited a quadratic dependence on the magnetic field. Specific heat data indicated slight variations in Debye temperatures and Sommerfeld coefficient values with changes in Si content. Band structure calculations supported experimental results, highlighting the contribution of Al and Si s-electrons to metallic conductivity.
Article
Polymer Science
Andrzej Rybak
Summary: The study demonstrates that the epoxy composite filled with core-shell particles has improved thermal conductivity and mechanical properties, with minimal effects on rheological behavior and dielectric properties.
Article
Chemistry, Physical
Sylwia Fiejdasz, Adriana Gilarska, Tomasz Straczek, Maria Nowakowska, Czeslaw Kapusta
Summary: In this study, hybrid materials based on natural polymers containing SPIONs were prepared and characterized for their magnetic properties. It was found that immobilizing SPIONs while preserving their superparamagnetic character resulted in promising hybrids with potential applications.
Article
Chemistry, Multidisciplinary
Joanna D. Stachowska, Monika B. Gamza, Claire Mellor, Ella N. Gibbons, Marta J. Krysmann, Antonios Kelarakis, Elzbieta Gumieniczek-Chlopek, Tomasz Straczek, Czeslaw Kapusta, Anna Szwajca
Summary: We present a simple strategy to generate a family of carbon dots/iron oxide nanoparticles with tunable composition and excellent properties, including antimicrobial activity and bioimaging capability, showing great potential for the development of advanced diagnostic tools.
Article
Materials Science, Multidisciplinary
Sylwia Fiejdasz, Adriana Gilarska, Wojciech Horak, Agnieszka Radziszewska, Tomasz Straczek, Michal Szuwarzynski, Maria Nowakowska, Czeslaw Kapusta
Summary: Novel hybrid magnetic materials based on natural polymer matrices containing superparamagnetic iron oxide nanoparticles were successfully prepared by coating SPIONs with a chitosan derivative and linking them with a chitosan-collagen hydrogel matrix through covalent bonds. The microstructure and magnetic properties of the materials were determined by electron microscopy, scanning transmission electron microscopy, and magnetic force microscopy. Rheological studies revealed the effect of material composition on mechanical properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
V Bayev, M. Rybin, I Svito, J. Przewoznik, Cz Kapusta, J. Kasiuk, S. Vorobyova, A. Konakov, E. Obraztsova
Summary: This paper discusses the charge transport in a sandwich-like structure composed of monolayer graphene, cobalt nanoparticles, and another layer of graphene. The top graphene layer plays a predominant role in charge transport, exhibiting increased carrier mobility and magnetoresistive effect compared to pristine graphene. This technology shows promise for potential optoelectronic and magneto-optical applications.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Ceramics
Dominika Jendrzejczyk-Handzlik, Janusz Przewoznik, Boguslaw Onderka, Czeslaw Kapusta, Piotr Handzlik, Krzysztof Fitzner
Summary: This study determined the thermodynamic properties of BiSbO4 using five experimental methods, providing key data such as heat capacity, heat content, entropy, and free energy.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Jakub Jurczyk, Lex Pillatsch, Luisa Berger, Agnieszka Priebe, Katarzyna Madajska, Czeslaw Kapusta, Iwona B. Szymanska, Johann Michler, Ivo Utke
Summary: This study developed a method called focused-electron-beam-induced mass spectrometry (FEBiMS) for analyzing the fragmentation products of metalorganic compounds under electron irradiation. The results showed that FEBiMS is capable of investigating the fragmentation process of electron-sensitive materials within the energy range of scanning electron microscopes and has potential applications in studying fundamental and process parameters in various nanotechnology fields.
Article
Multidisciplinary Sciences
Zbigniew Bukowski, Damian Rybicki, Michal Babij, Janusz Przewoznik, Lukasz Gondek, Jan Zukrowski, Czeslaw Kapusta
Summary: Compounds containing Eu exhibit unique physical properties due to the interplay of electronic and magnetic properties. In this study, the growth of EuZn2As2 single crystals and their structural, electronic and magnetic properties were investigated. Experimental techniques including X-ray diffraction, electron microscopy, magnetic susceptibility, magnetization, heat capacity and Mossbauer spectroscopy were employed. The results show that Eu has a valence state of 2+ and forms a canted antiferromagnetic structure tilted from the basal plane below 19.2 K.
SCIENTIFIC REPORTS
(2022)
Article
Polymer Science
Andrzej Rybak, Lukasz Malinowski, Agnieszka Adamus-Wlodarczyk, Piotr Ulanski
Summary: The study evaluated the potential application of functional shrinkable materials in thermally conductive electrical insulation elements, with a focus on the use of boron nitride powder filled polyethylene composite for enhanced thermal conductivity. The investigation also observed a full shape memory effect in the crosslinked samples.
