Article
Polymer Science
Helena Oliver-Ortega, Josep Tresserras, Fernando Julian, Manel Alcala, Alba Bala, Francesc Xavier Espinach, Jose Alberto Mendez
Summary: Packaging accounts for about 40% of total plastic production, and there is a shift towards biopolymers in food packaging due to environmental concerns. Improving barrier properties of Poly (lactic acid) (PLA) for competition with other polymers is being researched, with a focus on dispersion. Pre-dispersion and concentrated compounds show promise in enhancing mechanical performance and sustainability of materials in food trays.
Article
Biochemistry & Molecular Biology
Khadidja Taleb, Isabelle Pillin, Yves Grohens, Salima Saidi-Besbes
Summary: This study investigates the use of different nanofillers to enhance PLA properties, and the resulting nanocomposites show improvements in thermal stability and mechanical properties, but at the cost of reduced ductility. Characterization of the composite materials reveals a significant reduction in permeability compared to unfilled PLA.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Polymer Science
Helena Oliver-Ortega, Victor Vandemoortele, Alba Bala, Fernando Julian, Jose Alberto Mendez, Francesc Xavier Espinach
Summary: This study focused on developing composite materials based on PLA reinforced with bentonite nanoparticles to produce films with improved barrier properties against water vapor transportation. The dispersion of nanoparticles reduced water vapor diffusion by over 22% and met migration standards for food packaging. However, the presence of nanoclays decreased the biodegradable capacity of the materials.
Article
Materials Science, Composites
Srinivasan Shanmugam, Omkumar Meenakshisundaram
Summary: This study focuses on the preparation and fabrication of graphene hybrid fiber-reinforced polymer composites and investigates the effect of graphene on the microhardness and wear behavior of the composites. The addition of graphene significantly improves the thermal stability, microhardness, and tribological performance of the composites. Surface features were examined using a scanning electron microscope, and the results show that the inclusion of 0.6 wt% graphene decreases the friction coefficient by 35% and reduces the wear rate under abrasive conditions. The use of graphene in wear-resistant materials and high-performance applications in automotive and aerospace industries shows promising potential.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Multidisciplinary
An Truong Thanh, Cuong Huynh Le Huy
Summary: This study investigates the effects of zinc borate (ZB) and nano silica (NS) on the mechanical and thermal properties of epoxy nanocomposites and coatings. The addition of 5 wt % ZB to the epoxy resin resulted in a 50% increase in impact strength and an increase in glass transition temperature (Tg) from 52 to 71 degrees C. The combination of 5 wt % ZB and 1 wt % NS further enhanced the impact strength of the nanocomposites by 137.5% and increased Tg to 82 degrees C. The results demonstrate that ZB, NS, and hardener T31 improve the toughness and mechanical properties of epoxy materials.
Article
Materials Science, Multidisciplinary
Subhankar Das, Sudipta Halder, Bappi Paul, Nazrul Islam Khan, M. S. Goyat
Summary: Graphene oxide (GO) or reduced graphene oxides (RGO) have shown great potential as reinforcements in epoxy composites for enhancing their mechanical and thermal properties. However, the preparation of GO and RGO is challenging. This study proposes the use of milled graphite nanoparticles (GrNPs) as an alternative reinforcement due to their porous structure and ease of oxidation. The use of economical silanized milled GrNPs significantly improves the thermo-mechanical behavior of the epoxy nanocomposites without sacrificing other important properties.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Composites
Mohammad Razavi-Nouri, Masoud Salavati
Summary: The influence of multi-walled carbon nanotubes (MWCNTs) on the thermal, mechanical, wetting properties, and rheological behavior of poly(ethylene-co-vinyl acetate) (EVA)/acrylonitrile-butadiene rubber nanocomposites was investigated. It was found that the addition of MWCNTs improved the solid surface free energy, work of adhesion, spreading coefficient, and Girifalco-Good's interaction parameter, while reducing the contact angle and interfacial free energy. The nanocomposite with 1 wt% nanofillers exhibited the highest tensile strength and toughness. Furthermore, the relaxation ratio and relaxation rate index decreased with increasing carbon nanotubes (CNTs) concentration. The increment in MWCNTs loading led to an increase in the yield stress of the molten materials according to a quadratic equation. The analysis also showed that the crystallization process was triggered at a slightly higher temperature with the introduction of CNTs, while the melting point and nucleation rate decreased noticeably with the increase in nanofillers content.
POLYMER COMPOSITES
(2022)
Article
Materials Science, Composites
Zixuan Chen, Tianyu Yu, Yun-Hae Kim, Zetian Yang, Yan Li, Tao Yu
Summary: This study aims to investigate the mechanical properties of basalt fiber reinforced polymers (BFRPs) with the incorporation of different structured nanoclays, and to improve their interfacial bonding through experimental methods. The results show that a flattened nanoclay structure is more effective for enhancing the modulus, and the inclusion of different structured nanoclays also improves the interlaminar strength and toughness of BFRPs.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Polymer Science
Dalia E. Abulyazied, Antoaneta Ene
Summary: This review focuses on nanoclay-reinforced polymers, discussing the structure of layered silicate clay, methods for clay material modification, general characterization techniques, synthesis methods, properties of polymer-clay nanocomposites (PCNs), and specific applications in various industries. Examples from scientific literature are provided to illustrate the discussion. The primary goal is to provide an up-to-date survey of polymer-clay nanocomposites and their specific applications.
Article
Nanoscience & Nanotechnology
Fei Lin, Fanghui Jia, Mengyuan Ren, Jun Wang, Ming Yang, Zhixin Chen, Zhengyi Jiang
Summary: An Al2024/1 wt% TiC/1 wt% GNPs nanocomposite with improved mechanical properties and stable thermal conductivity was fabricated through powder metallurgy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Composites
Joon Fatt Wong, Jia Xin Chan, Azman Hassan, Zurina Mohamad, Shahrir Hashim, Jeefferie Abd Razak, Yern Chee Ching, Muhamad Zaini Yunos, Ridwan Yahaya, T. M. Sampath U. Gunathilake
Summary: Polyoxymethylene (POM) nanocomposites reinforced with synthetic wollastonite nanofibers (SWN) showed improved mechanical, thermal, and flammability properties as the aspect ratio of SWN increased. Higher aspect ratio SWN resulted in increased tensile strength, Young's modulus, and impact strength in POM nanocomposites. However, lower aspect ratio SWN performed better in flame retardancy, with delayed time to ignition and decreased peak heat release rate.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Multidisciplinary
Bakhan S. Mustafa, Gelas M. Jamal, Omed Gh. Abdullah
Summary: Hybrid polymer nanocomposites were fabricated by incorporating zirconium dioxide and yttrium oxide nanoparticles into epoxy resin and strengthening it with multi-walled carbon nanotubes. The addition of a small amount of MWCNT improved the mechanical and thermal properties of the hybrid nanocomposites. The nanocomposites also showed enhanced structural properties and thermal stability. Overall, this material is a suitable candidate for structural and sub-structural construction.
RESULTS IN PHYSICS
(2022)
Article
Polymer Science
Yang Liu, Xun Zhang, Quanxin Gao, Hongliang Huang, Yongli Liu, Minghua Min, Lumin Wang
Summary: In this study, silver nanoparticles and MAH-g-POE were used as enhancement additives to improve the performance of POM homopolymer. The addition of MAH-g-POE improved the interfacial adhesion between silver nanoparticles and POM matrix, while the combined addition of both additives significantly enhanced the thermal stability, crystallization properties, and mechanical properties of the ternary nanocomposites. However, the storage modulus of the ternary nanocomposites decreased with the increase in Ag/MAH-g-POE content due to the reduction in rigidity caused by MAH-g-POE elastomer.
Article
Materials Science, Composites
Joon Fatt Wong, Jia Xin Chan, Azman Hassan, Zurina Mohamad, Shahrir Hashim, Jeefferie Abd Razak, Yern Chee Ching, Zaini Yunos, Ridwan Yahaya
Summary: This study investigates the properties of synthetic wollastonite nanofibers reinforced polyoxymethylene nanocomposites. The results showed that the mechanical strength, thermal stability, and flame retardancy of the nanocomposites were improved, indicating their potential use in automotive applications.
POLYMER COMPOSITES
(2022)
Article
Chemistry, Physical
Regina Jeziorska, Agnieszka Szadkowska, Maciej Studzinski
Summary: The study found that by filling modified silica into PPO/PA11 blends, the rheological and mechanical properties of the composites can be improved. The modified silica can change the morphology of the blends and enhance viscosity and stiffness. On the other hand, neat silica increases the crystallinity of PA11 and decreases the glass transition temperature of PPO.
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)