Article
Mechanics
Ludovic Pauchard
Summary: Paints and coatings are produced by depositing a volatile liquid containing dispersed colloidal particles, and the dry film is obtained by evaporating the volatile liquid. The drying process can result in continuous coatings with no porosity, uniform porous coatings, or the formation of singularities such as cracks. When subjected to a wetting and drying process, the coatings can undergo changes in morphology due to their rheological properties, including the growth of blisters.
Article
Polymer Science
Fatima Ghassan Alabtah, Abedalkader Alkhouzaam, Marwan Khraisheh
Summary: This study comprehensively investigates the mechanical behavior of thin-film composite membranes, including deformation and failure, temperature and strain rate sensitivity, and anisotropy. The results reveal that the overall mechanical strength of the membrane is provided by the polyester layer, while the rupture stress for the middle and top layers is significantly lower. These findings provide new insights for novel membrane designs and fabrication techniques.
Article
Polymer Science
Hamidreza Parsimehr, Shahla Pazokifard
Summary: This study focused on the mechanical properties of ambient temperature cross-linkable acrylic latex polymers synthesized via semibatch emulsion polymerization. Different combinations of monomers and theoretical glass transition temperatures were considered in designing emulsions, with adipic dihydrazide as a cross-linking agent. Mechanical assessments revealed that the difference between ambient temperature and glass transition temperature is more important than cross-link density in the mechanical performance of the latex films.
Article
Chemistry, Inorganic & Nuclear
Ying Liu, Guihong Song, Liyang Ran, Kaiping Tai, Zhi Yu, Yusheng Wu, Junhua You
Summary: Mg2Sn/Mg multilayer films with different nano-sized modulation period were successfully prepared. The films exhibited a layered structure composed of metal Mg layer and antifluorite cubic Mg2Sn layer. The introduction of heterogeneous interfaces greatly enhanced the carrier scattering process and improved the thermoelectric properties of the deposited films. This study demonstrates the effectiveness of introducing heterogeneous interfaces composed of the same elements in improving the thermoelectric properties.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Physical
Zewen Zuo, Yongbin Guo, Junhu Li, Lujun Zhang, Yuan Feng, Feng Liao, Kuanguo Li, Guanglei Cui
Summary: In this study, large-area and highly absorptive films stacked with uniform silver nanoparticles (AgNPs) were fabricated with the assistance of adhesive tape. The films exhibited broadband light absorption from ultraviolet to near-infrared regions, making them suitable for various applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Mikk Kull, Helle-Mai Piirsoo, Aivar Tarre, Hugo Mandar, Aile Tamm, Taivo Jogiaas
Summary: In this study, HfO2 thin films doped with Al2O3 were deposited on silicon using PE-ALD, resulting in coatings with tunable refractive index and high mechanical resilience. The films were mainly amorphous with thicknesses of 60-80 nm and Al contents ranging from 2 to 26 at.%. The refractive indexes varied from 1.69 to 2.08 at 632 nm wavelength, and showed a strong correlation with the composition. The films exhibited hardness values of 12-15 GPa and modulus values of 160-180 GPa, with no clear correlation between mechanical properties and deposited compositions. The results suggest that thin films of HfO2 doped with Al2O3 can be used for mechanically resilient and optically tunable coatings in various applications.
Article
Nanoscience & Nanotechnology
Janne-Petteri Niemela, Barbara Putz, Gustavo Mata-Osoro, Carlos Guerra-Nunez, Remo N. Widmer, Nadia Rohbeck, Thomas E. J. Edwards, Max Doebeli, Krzysztof Mackosz, Aleksandra Szkudlarek, Yury Kuzminykh, Xavier Maeder, Johann Michler, Bernhard Andreaus, Ivo Utke
Summary: This study investigates the mechanical properties of atomic layer-deposited coatings and proposes a method to control the fracture onset strain. The results show that the layer structure and composition can be manipulated to tailor the fragmentation onset of the coatings. It is also found that the intrinsic residual stress of Y2O3 coatings is a disadvantage for applications with applied tensile stresses, while the insertion of an Al2O3 layer at the film/substrate interface can enhance the interface toughness. Additionally, the high-temperature behavior of the coatings is studied, revealing good temperature tolerance.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Di Yang, Jian Li, Fan Yang, Jun Li, Li He, Hainan Zhao, Luyao Wei, Yizhan Wang, Xudong Wang, Yingjin Wei
Summary: An artificial organic/inorganic composite protecting film with a surface pits structure was prepared for lithium metal anode, showing stable operation for 1000 hours at a high current density and improved cycling performance when paired with LiFePO4 or sulfur cathode, demonstrating great potential in lithium metal batteries.
Article
Chemistry, Multidisciplinary
Yuma Sasaki, Yuichiro Nishizawa, Takumi Watanabe, Takuma Kureha, Kazuya Uenishi, Kazuko Nakazono, Toshikazu Takata, Daisuke Suzuki
Summary: In this study, the fracture resistance of thin elastomer films made of acrylic nanoparticles was investigated. By introducing a small amount of a rotaxane crosslinker, the films showed improved tear resistance, with a change in the direction of crack propagation. These findings contribute to the design of environmentally friendly polymer nanoparticles for tough polymers.
Article
Chemistry, Physical
Jin Ke, Penghua Ying, Yao Du, Bo Zou, Huarui Sun, Jin Zhang
Summary: This study investigates the mechanical properties of the multilayer MoS2/SiO2 system through experiments and simulations and compares them with the graphene/SiO2 system. It is found that the MoS2/SiO2 and graphene/SiO2 systems have comparable Young's modulus and hardness values, but exhibit different mechanical responses and failure modes under indentation. The MoS2/SiO2 system shows interface delamination failure, while the graphene/SiO2 system does not. This difference can be attributed to the different bending stiffness values between MoS2 and graphene.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Elias Kaady, Syreina Sayegh, Mikhael Bechelany, Roland Habchi, Akram Alhussein
Summary: The effect of carbon insertion using CH4 gas flow as the carbon precursor in magnetron sputtering on the mechanical and electrochemical properties of CrN coatings, as well as the influence of Al2O3-ZnO nanolaminates sealing layers deposited by ALD on distinctive CrCN sputtered coatings, were investigated. Structural, morphological, and topographical analyses were conducted to examine the coatings. Nanoindentation measurements determined the mechanical properties and electrochemical behavior was evaluated. The study provides new insights in the field of duplex treatment based on hybrid deposition techniques.
Article
Materials Science, Multidisciplinary
Minpyo Hong, Kyungmin Kim, Yongnam Song
Summary: The integration of molecular/atomic layer deposition techniques enhances the surface quality and mechanical properties of hybrid thin films. By varying the composition and number of layers, the study found changes in crack patterns and mechanical properties. The research demonstrated the effectiveness of MLD/ALD-based approach in enhancing surface quality and mechanical properties.
Article
Chemistry, Analytical
Shih-Chin Lin, Ching-Chiun Wang, Chuen-Lin Tien, Fu-Ching Tung, Hsuan-Fu Wang, Shih-Hsiang Lai
Summary: This study presents a low-temperature process (<100 degrees C) for growing a thin silica buffer layer and aluminum oxide using atomic layer deposition (ALD) in the same reaction chamber. Heterogeneous multilayer thin films are prepared by a dual-mode equipment based on atomic layer deposition and plasma-enhanced chemical vapor deposition (PECVD) techniques. The experimental results demonstrate a uniform microstructure and excellent film uniformity with +/- 2.3% and a growth rate of 0.69 angstrom/cycle. The thickness of aluminum oxide film has a linear relationship with the cyclic growth number, and the structural and mechanical stress properties meet the requirements of advanced thin-film devices.
Article
Thermodynamics
Giovanni Tanda, Mario Misale
Summary: Experimental investigation on the thermal emittance of metals showed that surface characteristics have a significant impact on the radiation properties of solid materials, with surface microgeometry alterations, surface damage, and surface coatings playing separate roles.
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME
(2021)
Article
Physics, Multidisciplinary
Ali-Reza Grayeli-Korpi, Helma Sadat Bahari, Hadi Savaloni
Summary: The corrosion behavior of Ni/(AISI 304) and Ni/Ti/(AISI 304) samples annealed at different temperatures was studied in a NaCl corrosive medium. The results showed that the samples exhibited the highest corrosion resistance at an annealing temperature of 773 K. The improvement in corrosion resistance was quantified using electrochemical and surface characterization methods.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Polymer Science
Gordana Siljanovska Petreska, Christof van Sluijs, Clemens Auschra, Maria Paulis
Article
Polymer Science
Edurne Gonzalez, Robin Stuhr, Jesus Manuel Vega, Eva Garcia-Lecina, Hans-Jurgen Grande, Jose Ramon Leiza, Maria Paulis
Summary: The study involved incorporating CeO2 nanoparticles into waterborne binders with high biobased content to prepare waterborne coatings with excellent anticorrosion performance, achieving outstanding corrosion protection by forming a phosphatization layer and utilizing CeO2 nanoparticles.
Article
Chemistry, Multidisciplinary
Edurne Gonzalez, Aitor Barquero, Belen Munoz-Sanchez, Maria Paulis, Jose Ramon Leiza
Summary: Green electrospinning is a new technology that uses a template polymer to spin a polymer from an aqueous dispersion, providing an environmentally friendly and safe method for spinning hydrophobic polymers. The study found that factors such as template polymer molar mass, total solids content, and particle/template ratio influence fiber morphology, while surfactant used, surface functionality of polymer particles, and particle size distribution also play a role. Additionally, viscosity of the initial blend, particle packing, and surface chemistry of polymer particles are important for obtaining high-quality nanofibers.
Review
Engineering, Chemical
Fakhara Sabir, Maimoona Qindeel, Mahira Zeeshan, Qurrat Ul Ain, Abbas Randar, Mahmood Barani, Edurne Gonzalez, M. Ali Aboudzadeh
Summary: Lung cancer is a major global cause of death, primarily due to late diagnosis and chemotherapeutic agents affecting healthy cells. The complex pathophysiology of lung cancer offers various treatment pathways, including targeting tumor receptors and immune markers. To overcome issues with conventional methods, researchers are exploring new targeted delivery approaches, such as nanoparticles, for diagnosis and treatment.
Article
Materials Science, Multidisciplinary
Diulia Quites, Jose Ramon Leiza, Daniele Mantione, Anthony Somers, Maria Forsyth, Maria Paulis
Summary: This study optimized the incorporation of organic corrosion inhibitors into waterborne coatings and successfully incorporated p-coumaric acid into polymeric binders. The anticorrosion performance of the coatings was tested and compared using electrochemical analysis.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Article
Polymer Science
Stefano Chimenti, Marco Cerra, Tito Zanetta, Jose Ramon Leiza, Maria Paulis
Summary: Two phosphate functionalized acrylic binders were formulated to produce direct-to-metal paints without corrosion inhibitors. The performance of both paints, formulated without corrosion inhibitors, exhibited superior water sensitivity, mechanical stability, adhesion, and resistance against corrosion in high humidity, accelerated weathering, and salt-spray tests. Additionally, the paint based on an amorphous copolymer binder showed significantly better performance in the salt spray test compared to the DTM paint formulated with corrosion inhibitors.
Article
Materials Science, Multidisciplinary
Edurne Gonzalez, Aitor Barquero, Maria Paulis, Jose Ramon Leiza
Summary: The present work demonstrates the use of green electrospinning to create composite nanofibers containing inorganic nanoparticles. By encapsulating the nanoparticles in polymer particles through miniemulsion polymerization and spinning them with polyvinyl alcohol as a template, it is possible to achieve excellent distribution and encapsulation of the nanoparticles without altering the nanofibers' size. This technology allows for the incorporation of multiple types of nanoparticles, making it a promising technique for sensing and biomedical applications.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Article
Engineering, Chemical
Aitor Barquero, Oihane Llorente, Daniela Minudri, Maria Paulis, Jose Ramon Leiza
Summary: Solvent-free waterborne polyurethane-poly(meth)acrylate hybrid dispersions are synthesized for formulating anticorrosive paints. A phosphate containing polymerizable surfactant, Sipomer PAM 200, is incorporated to enhance the anticorrosive protection by forming an iron phosphate passivation layer. The effectiveness of this passivation layer is evaluated in different corrosive environments.
MACROMOLECULAR REACTION ENGINEERING
(2023)
Article
Polymer Science
Miren Aguirre, Nicholas Ballard, Edurne Gonzalez, Shaghayegh Hamzehlou, Haritz Sardon, Marcelo Calderon, Maria Paulis, Radmila Tomovska, Damien Dupin, Ren H. Bean, Timothy E. Long, Jose R. Leiza, Jose M. Asua
Summary: The water-based emulsion polymerization process has led to the continuous growth in commercial use of polymer colloids due to its high efficiency and versatility in production. This perspective highlights the challenges in synthesis and application of polymer colloids, including the transition towards sustainable feedstocks and reduced environmental impact in their primary applications, as well as the design and application of novel polymer colloids in emerging areas. Unconventional processing techniques utilizing the unique colloidal nature are also presented.
Article
Chemistry, Physical
Usue Olatz Aspiazu, Shaghayegh Hamzehlou, Nicola Palombo Blascetta, Maria Paulis, Jose Ramon Leiza
Summary: Particle size and particle size distribution are important properties of polymer latexes that affect film formation and rheological properties. Turbidity spectroscopy is used to measure the particle size of nanoparticles in dispersed media, and wavelength exponent based calibration curves can successfully monitor the particle size during the polymerization process.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Beatriz Robles-Hernandez, Edurne Gonzalez, Jose A. Pomposo, Juan Colmenero, Angel Alegria
Article
Chemistry, Applied
Heena, Komal Sharma, Kamlesh Kumar, Bhargab Das, Raj Kumar
Summary: In this study, holographic films were prepared using an automatic film applicator, and their performance was compared with films prepared by other methods. The results showed that holographic films prepared with the automatic film applicator had higher diffraction efficiency and more uniform thickness, making them suitable for holographic applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Athira S. Vijayan, Antony Joseph, Abey Joseph, T. S. Abhijith, Baiju G. Nair, V. Sajith
Summary: Novel polydopamine functionalized ceria-zirconia nanoparticles filled water-borne epoxy nanocomposite coatings were developed to prevent microbial-induced corrosion of mild steel. The coatings exhibited exceptional anti-biofouling and anti-biocorrosion properties due to the synergistic effect of PDA functionalization and zirconium incorporation, providing significant enhancement in charge transfer resistance and coating resistance.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yudan Yi, Qingyong Sun, Qijun Li, Bi Shi, Ya-nan Wang
Summary: Producing metal-free leather is an effective approach to eliminate Cr pollution and achieve sustainable development of the leather industry. However, current metal-free tanning technologies have limitations in terms of water sorption and charge properties. By using cationic amphiphilic acrylic copolymers (PSD) as retanning agents, the properties of metal-free leather can be significantly improved, including enhanced hydrophobicity, better dye absorption, and excellent filling effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yunqing Xia, Lifen Tong, Xiaofang Feng, Hubing Xiang, Yi He, Xiaobo Liu
Summary: By incorporating functionalized nanofillers, such as polydopamine-modified graphitic carbon nitride and cerium oxide, into epoxy coatings, their corrosion resistance can be improved and their protective period can be extended.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Weineng Lu, Guanhao Ma, Jinqing Qu
Summary: Four novel bis-chalcone-based carbazole derivative photoinitiators were designed and synthesized in this study. Their maximum absorption wavelengths were determined and found to exhibit high molar extinction coefficients. Furthermore, a three-component photoinitiation system including bis-chalcone/iodonium/amine was successfully used to trigger the rapid and efficient photopolymerization of acrylates. The photoinitiators also showed good photo bleaching and biocompatibility, making them suitable for applications such as 3D printing and deep coating curing.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Xingnan Zhou, Shixian Zhang, Yiheng Song, Hongmei Qin, Chuanxi Xiong, Shan Wang, Quanling Yang, Delong Xie, Rong Fan, Dan Chen
Summary: In this study, eco-friendly 3-amino-1,2,4-triazole (ATA) molecules were used to modify graphene oxide (GO) nanosheets for improving the anti-corrosion performance of water-borne epoxy (WEP) coating. The results show that ATA modification enhances the dispersion of GO in the polymer coating and significantly improves the barrier effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Hao Fu, Wei Bing, Xushibojie Liu
Summary: In this study, temperature-sensitive coatings with bacteria-killing and bacteria-releasing functions were prepared on silicone rubber surfaces by UV polymerization and UV photocatalysis. The modified surface exhibited strong and persistent bactericidal effect, inhibiting the formation of bacterial biofilm. Moreover, the smart surface can effectively release bacteria and resist bacterial adhesion through temperature changes. The modified silicone rubber surface showed good biocompatibility without cytotoxicity.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Lee Eyann, Zulkifli Mohamad Ariff, Mohamad Danial Shafiq, Raa Khimi Shuib, Muhamad Sharan Musa
Summary: By investigating the effect of MAA addition on the properties of the WEA core-shell emulsion, film and coating, it was found that MAA can significantly impact the structure and performance of the coatings, and has great potential for applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Jinkyu Choi, Kyung Hoon Min, Byeong Seok Kim, Sung-Hyeon Baeck, Sang Eun Shim, Yingjie Qian
Summary: A novel phosphorus-based flame retardant was designed by incorporating aryl groups, which effectively improved the flame retardancy and mechanical properties of polyurethanes.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Saowaluk Taechutrakul, Thananchai Piroonpan, Beata Paulina Rurarz, Slawomir Kadlubowski, Piotr Ulanski, Wanvimol Pasanphan
Summary: This study proposes the use of nanogels to disperse and stabilize water-insoluble organic pigment particles in water-based inks. The nanogels were prepared using electron beam-induced chemical reactions and showed good dispersion and stabilization properties. The use of nanogels in ink formulation improved the ink's hiding power, lightfastness, and resistance properties.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Shan Wan, Huikai Chen, Bokai Liao, Xingpeng Guo
Summary: In this study, 2-amino-5 mercapto-1,3,4-thiadiazole (ATT) was used as an intercalating agent to prepare ATT/BNNS nanofillers via a liquid-phase assisted ultrasound method. TEM results showed that ATT successfully exfoliated BNNS and reduced agglomeration. The WEP ATT/BNNS coating exhibited the best protective performance under saline immersion due to the combined action of ATT inhibitor and BNNS physical barrier.
PROGRESS IN ORGANIC COATINGS
(2024)
Review
Chemistry, Applied
Lijie Yin, Bo Zhang, Ming Tian, Nanying Ning, Wencai Wang
Summary: This paper reviews the recent progress in the synthesis of bio-based waterborne polyurethanes (BWPU) and focuses on its applications in coatings, adhesives, and antimicrobials. BWPU has attracted much attention due to its good physical and chemical properties, no VOCs emissions, exploitation of renewable substances, and structural design-ability.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yuyang Zhou, Yang Chen, Xinming Cao, Haodong Fu, Yun Li, Yonghui Zhang, Jun Ma, Xin Liu
Summary: This study proposes a strategy to fabricate a high-strength double-layer superhydrophobic actuator, which consists of a metal/glass-based superhydrophobic substrate and a polymer superhydrophobic coating. The coating has high adhesive strength, self-cleaning, anti-ultraviolet irradiation, and anti-stripping properties, along with photothermal and magnetic response capabilities, enabling its application in various fields.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Fengbiao Chen, Fei Gao, Xinru Guo, Yu Chen, Xuelang Gao, Liang Shen
Summary: In this study, various covalent adaptable networks (CANs) were synthesized using multifunctional amines and compared with CANs prepared from primary and secondary amines. The results showed that the performance of CANs is closely related to the crosslinking density, and increasing the content of secondary amines improves the performance but weakens the dynamics.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Qian Zhang, Mengyi Shen, Xingcai Liu, Hao Fu, Wenbo Yang, Jinyuan Zhao, Jian Wang, Yaping Du, Chunjie Ma
Summary: Rare earth-containing corrosion inhibitors were successfully synthesized and added into epoxy coatings for the anti-corrosion of steel materials. The results showed that the coatings with rare earth elements had better anti-corrosion performance, and this difference in performance could be explained by the inherent properties of rare earth elements.
PROGRESS IN ORGANIC COATINGS
(2024)
