Article
Materials Science, Multidisciplinary
Xiaoxu Dong, Tong Song, Dongdong Ren, Kun Dai, Yuting Leng, Tiantian Wang, Yanxin Wang, Manman Sun, Donghang Liu, Qingtao Zhang, Jin Zhang, Qian Li, Shiwei Wang
Summary: In this study, the dispersion of multi-walled carbon nanotubes (MWCNTs) in Polyvinyl alcohol (PVA) was successfully achieved using a mixed solvent of dimethyl sulfoxide/N,N-dimethylformamide combined with ultrasonic and centrifugation techniques. The resulting PVA/MWCNTs hydrogel composite showed excellent properties based on mechanical, rheological, water content, and swelling analysis. Furthermore, a strain sensor based on the hydrogel composite demonstrated good stability, repeatability, and sensitivity to human motion response, with the ability to distinguish different joint movements.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Engineering, Multidisciplinary
Nuo Xu, Shaohua Chen, Yingze Li, Naiyu Jiang, Ting Zheng, Nick Goossens, Jef Vleugels, Dongxing Zhang, David Seveno
Summary: The mechanical properties of CF/PEEK composites were improved by grafting a complex sizing agent containing MXene, CNT, and PEI onto the CF surface. The synergistic effects of these materials significantly enhanced the interfacial properties, leading to increased flexural strength, flexural modulus, and interlaminar shear strength. Additionally, a new coating strategy changed the interfacial failure mechanism.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Composites
Haibin Zhao, Zhiyong Gao, Dongjie Zhai, Guoqun Zhao
Summary: To improve the strength and stiffness of continuous carbon fiber/polyamide (PA 6) thermoplastic composites, combinational treatments of liquid phase oxidation, coupling agent, and coating were used to enhance the surface activity of CF fabric and interfacial bonding with PA 6 matrix. The results showed increased chemical activity on the CF surface and successful grafting of KH550. The tensile strength and Young's modulus of the composites were significantly improved by 21.2% and 24.1% respectively, and the retention rates of flexural strength and ILSS after damp heat aging were 66% and 67% respectively.
COMPOSITES COMMUNICATIONS
(2023)
Article
Materials Science, Composites
Avery D. Brown, Charles E. Bakis, Edward C. Smith
Summary: The objective of this study is to evaluate the dynamic mechanical properties of a hybrid carbon fiber reinforced epoxy composite laminate containing CNT-rich interlayers. The results show that the surface treatments and alignment of the CNTs have significant effects on the mechanical properties of the composite material, and both surface treatments and alignment can increase the loss modulus and storage modulus of the composite material.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Review
Engineering, Mechanical
Chika Oliver Ujah, Daramy Vandi Von Kallon, Victor Sunday Aigbodion
Summary: High modulus, high thermal conductivity, low coefficient of thermal expansion, high electrical conductivity, self-lubricating characteristics and low density make carbon nanotubes (CNTs) one of the best reinforcing materials for nano composites in various applications. This study focuses on the tribological behavior of CNTs-reinforced composites, including metal matrix composites (MMCs), polymer matrix composites (PMCs), and ceramic matrix composites (CMCs). The study discusses the tribological characteristics, production challenges, and recommendations for dispersing CNTs and improving the wear resistance of composites. It is discovered that ball milling affects the CNTs' outer walls, but ultrasonication and functionalization can eliminate this adverse effect. The addition of CNTs to composite matrices improves wear resistance, reduces wear volume, decreases the coefficient of friction, and provides a self-lubricating effect.
Article
Mechanics
Anil R. Ravindran, Raj B. Ladani, Chun H. Wang, Adrian P. Mouritz
Summary: This study presents an experimental investigation on the strengthening of composite T-shaped joints using carbon nanoparticles, with carbon nanofibers showing the most effective enhancement. The research also reveals that the use of nanoparticles can improve the interlaminar fracture toughness properties of the composite materials.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Composites
Yichuan Zhang, Zhipeng Li, Guangming Chen, Yue Hu, Liang Deng
Summary: In this study, the trade-off between thermoelectric (TE) and mechanical (ME) performances in flexible polycarbonate (PC)/single-walled carbon nanotube (SWCNT) composites was successfully decoupled via interfacial adjustment. The obtained composite exhibited improved TE and ME performances by enhancing interfacial affinity and electrical conductivity.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Chengsen Li, Yuqing Dong, Xiaomin Yuan, Zhijie Qiu, Ye Zhang, Shuhan Yan, Xueping Gao, Bo Zhu
Summary: A simple and continuous method was developed to chemically graft MWCNTs onto CF for improving interlaminar properties of composites. CF/MWCNTs multi-scale reinforcements were successfully prepared through a two-step method based on Diels-Alder reaction, which enhanced the interface between matrix and fibers. ILSS and flexural strength of MSCF/epoxy reinforced composites were significantly improved by 52.84% and 32.32% respectively.
Article
Materials Science, Composites
Bingjian Deng, Lei Fang, Kuanjun Fang, Xinxin Han, Yueyao Liang
Summary: Compared with traditional clothing, wearable textiles with physiotherapy were a breakthrough innovation, especially those made of fiber materials with good mechanical properties and excellent electrical conductivity. The preparation of profiled conductive composite fibers (PCFs) with Tai Chi structure was achieved using polyacrylonitrile (PAN) and carboxylic multiwall carbon nanotubes (MWCNTs) by wet spinning. The PCFs exhibited high conductivity and mechanical strength, and were used to develop comfortable and stable wearable electric heaters with thermotherapy applications.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Manufacturing
Xiayan Huang, Mahyar Panahi-Sarmad, Ke Dong, Ziying Cui, Kanglei Zhang, Orianaisy Gelis Gonzalez, Xueliang Xiao
Summary: In this study, polylactic acid/thermoplastic polyurethane (PLA/TPU) blends with multi-walled carbon nanotubes (MWCNTs) were prepared by extrusion for 3D printing. The addition of MWCNTs improved the interfacial adhesion and shape recovery response of the blends. It was found that the wave structured PLA/TPU/CNT nanocomposites exhibited enhanced mechanical properties and shape-memory performance.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Engineering, Manufacturing
Chang Li, Suresh Viswanathan-Chettiar, Fengzhen Sun, Zhusheng Shi, Bamber Blackman
Summary: Manufacturing CFRP composites using different techniques can result in different surface topographies, which can affect subsequent surface pre-treatments and joint strength. The study found that patterned surfaces from vacuum autoclave molding improved joint performance for bonding CFRP substrates together, but resulted in inferior joint performance when bonding to flat aluminum alloy substrates. The dissimilarity of surface topographies between metal and composite substrates negatively influenced joint strength.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Engineering, Manufacturing
Yunxiang Bai, Mingquan Zhu, Shijun Wang, Feng Gao, Runyi Gao, Yusong Qu, Xuwei Cui, Guorui Wang, Luqi Liu, Hui Zhang, Zhong Zhang
Summary: Carbon nanotubes hold promise in providing lightning strike protection for carbon fiber reinforced plastic (CFRP) instead of metallic meshes/foils. However, the mechanism behind this protection is not well understood, hindering further improvement and applications. In this study, a miniature tip discharge system (MTDS) was designed to simulate the lightning strike environment in a laboratory, and the failure mechanism of CNT film-based advanced LSP composite systems was investigated. The main failure mechanism of the CNT film in lightning strike protection is thermal ablation, and parameters such as electrical conductivity, specific heat capacity, film size, electrode tip diameter, and electrical stress rates affect the testing results.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Polymer Science
Xuyao Zhang, Weiguo Li, Mengqing Yang, Ziyuan Zhao, Yi He, Shifeng Zheng, Jianzuo Ma, Liming Chen
Summary: This study presents a model to predict the temperature-dependent tensile strength of carbon nanotube/polymer nanocomposites (CPNCs). The model takes into account the effects of carbon nanotube networks and waviness, and shows good agreement with existing experimental data. Additionally, the study quantitatively analyzes the influences of carbon nanotube networks, waviness, and temperature on the tensile strength of CPNCs.
Article
Polymer Science
Konstantinos Leontiadis, Costas Tsioptsias, Stavros Messaritakis, Aikaterini Terzaki, Panagiotis Xidas, Kyriakos Mystikos, Evangelos Tzimpilis, Ioannis Tsivintzelis
Summary: This study investigated the development of composite polypropylene drawn fibers and found that the addition of fillers and other additives can improve the thermal and mechanical properties of the fibers. It was found that it was not feasible to maximize both the tensile strength and thermal stability for composites with talc as filler, but the mechanical strength of the fibers could be improved if low drawing ratios were used. On the other hand, it was feasible to optimize and maximize both the tensile strength and thermal stability for composites with single-wall carbon nanotubes as filler.
Review
Engineering, Manufacturing
Chengming Yue, Yingying Zhang, Weibang Lu, Yan Zhang, Ping Wang, Yuanyuan Li, Haili Zhou
Summary: This review highlights the important application value of electrical resistance heating curing (ERHC) method in the preparation of polymer-matrix composites (PMCs). The heating mechanism of ERHC is briefly introduced, and the ERHC method is classified into three types based on different forms of electric heating elements: fibers, fillers, and membrane sheets. The preparation methods for these three types of electric heating elements are summarized. The advantages of ERHC are obtained through analysis and comparison.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Environmental Sciences
Mahesan Naidu Subramaniam, Pei Sean Goh, Devagi Kanakaraju, Jun Wei Lim, Woei Jye Lau, Ahmad Fauzi Ismail
Summary: The article delves into the roles of photocatalysis and membrane technology in hybrid photocatalytic membranes for treating wastewater containing persistent organic pollutants (POP). It covers critical reviews on POP's impact, origins, and the challenges and future directions in this field, as well as discussing the fundamentals of photocatalytic mechanism and current trends in photocatalyst design.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Polymer Science
Targol Hashemi, Mohammad Reza Mehrnia, Aydin Marandi, Ahmad Fauzi Ismail
Summary: Novel mixed matrix membranes were prepared using magnetic casting and nanocomposite technology, resulting in increased water flux and improved anti-fouling properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yanuardi Raharjo, Ahmad Fauzi Ismail, Mohd Hafiz Dzarfan Othman, Mochamad Zakki Fahmi, Saiful, Djoko Santoso, Mochamad Ifan Nugroho, Diana Merna, Maipha Deapati Arief, Risma Chikita Pratama
Summary: This study aimed to develop a novel imprinted zeolite (IZC) and incorporate it into a polyethersulfone (PES) and poly(vinyl pyrrolidone) (PVP) mixed matrix membrane (HF-MMM) for hemodialysis treatment. The optimized parameters showed that this membrane has the potential to effectively remove uremic toxins.
Review
Chemistry, Multidisciplinary
Pei Sean Goh, Zahra Samavati, Ahmad Fauzi Ismail, Be Cheer Ng, Mohd Sohaimi Abdullah, Nidal Hilal
Summary: Membrane technology has gained popularity in industries for separation processes, desalination, and wastewater treatment. The development of nanocomposite membranes that merge nanotechnology and membrane technology has become a rapidly growing research area, motivated by the need for high-performance liquid separation membranes. The unique morphology and topology of nanostructured materials, such as TiO2, have attracted attention due to their hydrophilicity, antibacterial, and photocatalytic properties. This review provides an overview of the modifications of liquid separation membranes using TiO2 as an example of multidimensional nanomaterials, discussing their performance and advantages.
Article
Environmental Sciences
Noresah Said, Woei Jye Lau, Muhammad Nidzhom Zainol Abidin, Amir Mansourizadeh, Ahmad Fauzi Ismail
Summary: In this study, poly(citric acid)-grafted graphene oxide (PGO) was incorporated into single-layer hollow fiber (SLHF) and dual-layer hollow fiber (DLHF) membranes to improve their antifouling properties during water treatment. The optimized PGO loading of 0.7 wt% in SLHF membrane resulted in higher water permeability and bovine serum albumin rejection compared to the neat membrane. Similarly, introducing 0.7 wt% PGO only to the outer layer of DLHF membrane improved its antifouling properties and increased the rejection rate of bovine serum albumin to 97.7%.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
A. Sumisha, G. Arthanareeswaran, A. F. Ismail
Summary: This study mainly focuses on the analysis of casein protein transport characteristics through ultrafiltration membranes. Polysulfone-based polymer membranes modified with different materials are used. The experimental results show that the transport of casein is controlled by convection.
SEPARATION SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Komathi Kannathasan, Juhana Jaafar, Nuor Sariyan Suhaimin, Nurul Natasha Mohammad Jafri, Sadaki Samitsu, N. H. Alias, A. F. Ismail, T. Matsuura, M. H. D. Othman, Mukhlis A. Rahman, Farhana Aziz, Norhaniza Yusof, Mohammed Rasool Qtaishat, M. I. Ismail
Summary: A novel method of fabricating translucent photocatalytic membrane using a modified morphological structure as a photocatalyst has been developed. The study highlights the effect of translucency on the efficiency of photocatalytic reactions.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Environmental
Nor Akalili Ahmad, Lih Jang Tam, Pei Sean Goh, Nurfirzanah Azman, Ahmad Fauzi Ismail, Khairulnadzmi Jamaluddin, Gangasalam Arthanareeswaran
Summary: In this study, a thin film composite (TFC) reverse osmosis (RO) membrane with high long-term stability and antifouling properties was developed by spray coating the polyamide (PA) layer with oppositely charged titania nanosheets (TNS). The manufactured membranes showed improved permeability and radionuclide rejection, making them suitable for treating radionuclide-containing wastewater. The findings highlight the potential of tailored TFC RO membranes in the treatment of radioactive wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Noor Fauziyah Ishak, Nur Hidayati Othman, Najihah Jamil, Nur Hashimah Alias, Fauziah Marpani, Munawar Zaman Shahruddin, Lau Woei Jye, Ahmad Fauzi Ismail
Summary: Modifying polymeric membranes using ZIF-8 functionalized-2D nanofillers showed improved gas permeability and selectivity performance. The rGO/ZIF-8 and MoS2/ZIF-8 nanofillers were successfully synthesized and characterized. Addition of 10 wt% of each nanofiller to the PES solution resulted in MMMs with enhanced thermal stability. Compatibility between the 2D nanofillers and PES matrix was confirmed by FTIR and XRD analysis. The obtained MMMs exhibited significantly improved gas separation properties, demonstrating the potential of using 2D nanofillers for high-performance membranes.
PERTANIKA JOURNAL OF SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Nurul Syazana Fuzil, Nur Hidayati Othman, Nur Hashimah Alias, Fauziah Marpani, Muhammad Shafiq Mat Shayuti, Munawar Zaman Shahruddin, Mohd Rizuan Mohd Razlan, Norazah Abd Rahman, Woei Jye Lau, Mohd Hafiz Dzarfan Othman, Ahmad Fauzi Ismail, Tutuk Djoko Kusworo, Anwar Ul-Hamid
Summary: In this study, the performance of membrane distillation (MD) was improved by coating MoS2-TiO2 on a PVDF-based hollow fiber membrane. The MoS2-TiO2/PP20 membrane showed enhanced hydrophobicity and porosity, leading to significantly improved MD performances. This work suggests that the MoS2-TiO2 coating can overcome the typical permeability/rejection rate trade-off effect and play a significant role in enhancing MD performances.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Engineering, Environmental
Nur Fajrina, Norhaniza Yusof, Ahmad Fauzi Ismail, Farhana Aziz, Muhammad Roil Bilad, Meshel Alkahtani
Summary: This article summarizes recent developments in membrane technology tailored for biogas upgrading, including the structure and classification of membrane materials as well as effective approaches to overcome the trade-off between permeability and selectivity. Additionally, other challenges are comprehensively discussed, and future research required to tackle biogas upgrading issues is projected.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Textiles
Ainatul Aqilah Binti Mohd Rashid, Saravana Kumar Jaganathan, Ahmad Zahran Mohd Khudzari, Ahmad Fauzi Ismail
Summary: Nanofibrous dressings made of polycaprolactone (PCL) and green tea have potential advantages in wound management. The fabricated PCL/green tea nanofibrous composites showed smaller fiber morphology and diameter, improved wettability and water uptake compared to pure PCL fibers.
AUTEX RESEARCH JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Faten Ermala Che Othman, Norhaniza Yusof, Michael Petru, Nik Abdul Hadi Md Nordin, Muhammad Faris Hamid, Ahmad Fauzi Ismail, Ahmad Ilyas Rushdan, Shukur Abu Hassan
Summary: This study demonstrates the fabrication of PEI-graphene-derived rice husk char/activated carbon nanofiber composites and investigates their adsorption performance towards CO2. The results show that the addition of graphene and impregnation with amine enhances the surface area and CO2 uptake of the composites. The adsorption performance is influenced by temperature and pressure. The composites follow the pseudo first-order kinetic model and Langmuir adsorption isotherm model.
NANOTECHNOLOGY REVIEWS
(2022)
Article
Engineering, Multidisciplinary
Erna Yuliwaty, Ahmad Fauzi Ismail, Goh Pei Sean, Sri Martini
Summary: A PVDF-based mixed matrix membrane (PVDF- MMM) has been developed for POME treatment. Addition of TiO2 particles increased the hydrophilicity of the membranes. The air gap length influenced the membrane pore size and surface roughness. Aeration improved the turbulence and flux, reducing membrane fouling. The PVDF-based MMM demonstrated good performance for POME treatment.
JURNAL TEKNOLOGI-SCIENCES & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Zahra Samavati, Alireza Samavati, Ahmad Fauzi Ismail, Tohid N. Borhani, Mohammad Velashjerdi, B. Ghasem Eisaabadi, Amir Rostami, Mohd Hafiz Dzarfan Othman, Asmahani Awang
Summary: The study found that using vertically oriented zinc oxide nanorods as photo-anodes significantly improves the photovoltaic efficiency of organic solar cells, including increasing the open-circuit voltage and conversion performance. Additionally, the vertical nanorod structure facilitates electron mobility and oxygen reduction electro-catalytic action, reducing charge-transfer resistance and improving cell performance. This research contributes to sustainable electricity generation by reducing the reliance on non-renewable energy sources.
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Mahsa Saberian, Alireza Nezamzadeh-Ejhieh
Summary: CuO was successfully supported on clinoptilolite nanoparticles (NCP) via ion exchange and calcination, forming CuO-NCP photocatalysts. CuO-NCP exhibited enhanced photocatalytic activity towards tetracycline (TC), and the best degradation performance was achieved under optimal conditions (25 ppm TC solution, pH 4.8, and 0.5 g/L catalyst).
SOLID STATE SCIENCES
(2024)
