Article
Materials Science, Multidisciplinary
J. A. Gohl, T. C. Thiele-Sardina, M. L. Rencheck, K. A. Erk, C. S. Davis
Summary: A modular peel fixture was developed to conduct peel experiments directly on immovable substrates. The fixture was validated through peel tests on consumer tapes, reproducing the linear width dependence and viscoelastic rate dependence found in traditional setups. This fixture shows potential for both traditional peeling tests and in-situ peel experiments on substrates relevant to the end application of the PSA tape.
EXPERIMENTAL MECHANICS
(2021)
Article
Chemistry, Multidisciplinary
Andrew Vidler, Olivier Buzzi, Stephen Fityus
Summary: This study found that increasing the content of hydrophobic particles can reduce the saturation of materials, making the water retention behavior closer to coal mine wastes for soils that are more hydrophobic. However, the experiments on rocks and coal mine wastes showed different water retention characteristics, possibly due to the dual hydrophilic and hydrophobic behavior exhibited by coal mine wastes. Further research is needed to understand the discrepancy, which may be caused by an unknown coal-water phenomena.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
Jun-Hyung Sim, Yungeun Ha, Min-Kyun Kim, Min-Joong Kim, Young-Rae Cho
Summary: The study found that T6 heat treatment had opposite effects on the mechanical properties of 2-ply Al/STS clad metals. The bonding strength of 2-ply Al/adh/STS joints depended on the stress state of each adherend.
METALS AND MATERIALS INTERNATIONAL
(2022)
Article
Agricultural Engineering
Anouar Mouhoub, Safae Er Raouan, Amine Guendouz, Zainab El Alaoui-Talibi, Saad Ibnsouda Koraichi, Soumya El Abed, Cedric Delattre, Cherkaoui El Modafar
Summary: This study aimed to develop chitosan-based films containing different essential oils to inhibit bacterial adhesion and biofilm formation. The addition of specific essential oils significantly altered the physicochemical properties of the films, and one essential oil showed strong antiadhesion activity against various bacteria.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Polymer Science
Ei Mon Khaing, Jongjan Mahadlek, Siriporn Okonogi, Thawatchai Phaechamud
Summary: This study investigates the effects of lime peel oil (LO) on the properties of rosin-based in situ forming gels loaded with doxycycline hyclate (DH). The presence of LO impacts gel formation, drug release, and antimicrobial activity. Adding 10% LO improves gel adhesion and antimicrobial activity. Loading LO into rosin-based gels is an effective treatment for periodontitis.
Article
Engineering, Civil
Zeynep Karatza, Jim Buckman, Gabriela M. Medero, Christopher T. S. Beckett
Summary: Hydrophobic soils can create issues with rainwater infiltration, but can also improve stability in certain systems. Research shows that particle shape and surface roughness affect the formation and evolution of water meniscus structures, and that stable menisci can co-exist between hydrophobic particles.
JOURNAL OF HYDROLOGY
(2021)
Review
Chemistry, Multidisciplinary
Xiaokai Zhu, Honggang Wang, Kangkang Wang, Liming Xie
Summary: One key issue in promoting the industrialization of two-dimensional materials is the growth of high-quality and large-scale 2D materials. Investigating the growth mechanism and dynamics is fundamental, and in situ imaging plays a crucial role in this. This review summarizes recent progress in in situ imaging of 2D material growth, uncovering details such as growth rate, kink dynamics, domain coalescence, growth across substrate steps, single-atom catalysis, and intermediates.
Article
Polymer Science
Anouar Mouhoub, Safae Er Raouan, Amine Guendouz, Zainab El Alaoui-Talibi, Saad Ibnsouda Koraichi, Soumya El Abed, Gedric Delattre, Cherkaoui El Modafar
Summary: This study aimed to develop biodegradable films using chitosan and essential oils to protect against biofilm formation on food-grade surfaces. The results showed that the chitosan film with added essential oils had strong antiadhesion activity, effectively preventing microbial attachment and biofilm development. Therefore, this film has potential for use as an active coating and packaging material in the food industry.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Tracy T. Chuong, Toshihiko Ogura, Norihito Hiyoshi, Kazuma Takahashi, Sangho Lee, Keita Hiraga, Hiroki Iwase, Akira Yamaguchi, Kiyoto Kamagata, Eriko Mano, Satoshi Hamakawa, Hirotomo Nishihara, Takashi Kyotani, Galen D. Stucky, Tetsuji Itoh
Summary: This study introduces synthesized giant carbon nano-test tubes (GCNTTs) as radiation-insulating materials to improve sample preparation and imaging conditions for cryogenic electron microscopy. High-resolution images of proteins, such as hemoglobin and D-fructose dehydrogenase, were successfully obtained using GCNTTs, which also protected the proteins from radiation-induced denaturation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Jun Du, Xu Chu, Fan Ren, Shiyu Zheng, Zhenyu Shao
Summary: In this study, pomelo peel was used as a nitrogen-rich precursor to obtain an efficient porous carbon adsorbent through carbonization and template removal, without the need for extra nitrogen sources. The CO2 adsorption results were influenced by the ultra-microporous structure and N atom doping. The optimal adsorption of CO2 was 3.01 mmol g-1 (25 degrees C, 1 bar) and 4.83 mmol g-1 (0 degrees C, 1 bar). Additionally, the adsorbent PPC-4 exhibited excellent CO2/N2 adsorption selectivity and cyclic adsorption performance.
Article
Chemistry, Physical
Anja Verbic, Martin Sala, Ivan Jerman, Marija Gorjanc
Summary: This study presents a novel and entirely green in situ synthesis of zinc oxide nanoparticles on cotton fabric, demonstrating the application of new nanotechnology. By testing four different synthesis methods and utilizing various analytical techniques, the most suitable method to achieve excellent ultraviolet protection properties was identified.
Article
Psychology, Multidisciplinary
Higinio Gonzalez-Garcia, Guillaume Martinent, Marta Vega-Diaz
Summary: The aim of this study was to examine the psychometric properties of the motivation scale towards health-oriented physical activity (EMAPS) in the Spanish population. The results confirmed 6 dimensions of EMAPS, including intrinsic motivation, integrated regulation, identified regulation, introjected regulation, external regulation, and amotivation. The findings provide evidence for the reliability and validity of the Spanish version of EMAPS, which can be used to measure motivation towards health-oriented physical activity in the Spanish population.
CURRENT PSYCHOLOGY
(2023)
Article
Engineering, Geological
A. Dizier, G. J. Chen, J. Verstricht, X. L. Li, X. Sillen, S. Levasseur
Summary: The large-scale PRACLAY heater test in Belgium aims to study the thermo-hydromechanical behavior of Boom Clay in both near and far fields of a heated gallery. Through an extensive monitoring network, the evolution of temperature and pore water pressure in the clay is observed. This test provides a realistic estimate of thermal pressurization around a geological disposal facility.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2021)
Article
Agricultural Engineering
Lucile Nuez, Emmanuelle Richely, Javier Perez, Sofiane Guessasma, Johnny Beaugrand, Pierre D'Arras, Alain Bourmaud, Christophe Baley
Summary: The tensile properties of elementary flax fibres were investigated using in situ Synchrotron X-ray diffraction. The results showed that the cellulose microfibril angle (MFA) decreased with increasing applied loading, indicating a partial realignment of the microfibrils. The MFA at fracture point decreased by 11% to 15% compared to the initial MFA. Additionally, the strain at break of the fibres increased with increasing relative humidity.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Psychology, Multidisciplinary
Paul R. Appleton, Carme Viladrich, Eleanor Quested, Lorena Gonzalez-Garcia, Athanasios Papaioannou, Howard K. Hall, Isabel Balaguer, Yago Ramis, Philippe Sarrazin, Jean-Philippe Heuze, Yngvar Ommundsen, Bente Wold, Oddrun Samdal, Joan L. Duda
Summary: The purpose of this study was to test the measurement invariance of the EDMCQ-C across five languages, two time points, and two experimental conditions. The findings suggest partial invariance across languages and scalar invariance across time and experimental groups. This study provides further evidence regarding the psychometric properties of the EDMCQ-C and its applicability for comparing coach-created climates across athletes speaking different languages, over time, and across experimental groups, except for item 15.
FRONTIERS IN PSYCHOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Michael Nase, Mirko Rennert, Konstantin Naumenko, Victor A. Eremeyev
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2016)
Article
Engineering, Chemical
M. Nase, L. Grossmann, M. Rennert, B. Langer, W. Grellmann
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2014)
Article
Polymer Science
Michael Nase, Sascha Bach, Armin Zankel, Jens-Peter Majschak, Wolfgang Grellmann
JOURNAL OF APPLIED POLYMER SCIENCE
(2013)
Article
Polymer Science
Mirko Rennert, Steffen Fiedler, Michael Nase, Matthias Menzel, Sandra Guenther, Joerg Kressler, Wolfgang Grellmann
JOURNAL OF APPLIED POLYMER SCIENCE
(2014)
Article
Polymer Science
Neda Stoehr, Benjamin Baudrit, Edmund Haberstroh, Michael Nase, Peter Heidemeyer, Martin Bastian
JOURNAL OF APPLIED POLYMER SCIENCE
(2014)
Article
Polymer Science
Neda Stoehr, Benjamin Baudrit, Edmund Haberstroh, Michael Nase, Peter Heidemeyer, Martin Bastian
JOURNAL OF APPLIED POLYMER SCIENCE
(2015)
Article
Materials Science, Coatings & Films
M. Rennert, M. Nase, R. Lach, K. Reincke, S. Arndt, R. Androsch, W. Grellmann
JOURNAL OF PLASTIC FILM & SHEETING
(2013)
Article
Polymer Science
Rene Androsch, Rona Hohlfeld, Willy Frank, Michael Nase, Dario Cavallo
Article
Engineering, Chemical
Michael Nase, Sergio S. Funari, Goerg H. Michler, Beate Langer, Wolfgang Grellmann, Rene Androsch
POLYMER ENGINEERING AND SCIENCE
(2010)
Article
Engineering, Chemical
Michael Nase, Rene Androsch, Sven Henning, Wolfgang Grellmann
POLYMER ENGINEERING AND SCIENCE
(2015)
Article
Engineering, Electrical & Electronic
Fabian Lehretz, Joerg Kressler, Michael Nase, Mirko Rennert, Jan Schulte-Fischedick, Jens Martin Seifert
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
(2020)
Review
Polymer Science
Selamu Temesgen, Mirko Rennert, Tamrat Tesfaye, Michael Nase
Summary: The increasing interest in bio-based polymers and fibers has led to the development of alternatives to conventional synthetic materials. Bio-based polymer fibers made from renewable resources have great potential for sustainable, environmentally friendly, and fully biodegradable applications.
Article
Pharmacology & Pharmacy
Fanfan Du, Rafael Erdmann, Albrecht Petzold, Andre Wutzler, Andreas Leuteritz, Michael Nase, Rene Androsch
Summary: In this study, the insect repellent IR3535 was added to PLLA to improve its mechanical properties and achieve insect repellency. The two components were miscible at certain composition ratios. The addition of IR3535 reduced the glass transition temperature and elastic modulus of PLLA, acting as a plasticizer.
Article
Polymer Science
David Krieg, Olena Sergeieva, Sabine Jungkind, Mirko Rennert, Michael Nase
Summary: Linear low-density polyethylene (LLDPE) can be crosslinked through irradiation, which improves its chemical and thermal resistance but reduces its mechanical performance. To mitigate this reduction, compounds of LLDPE with thermoplastic elastomers (TPV) are prepared. Irradiation experiments show that compounds with 20 wt% TPV have a decrease of around 12% in gel content compared to pure LLDPE. It is also observed that compounds with 10 wt% TPV have a 4% higher gel content than predicted. Increasing the amount of TPV leads to an increase in elongation at break from 689% for pure LLDPE to 769%, and a decrease in tensile strength from 31.9 to 30.5 MPa. Under irradiation, both elongation at break and tensile strength decrease. Elongation at break decreases by around 200% and tensile strength decreases by around 5 MPa. Thermal analysis reveals that the melting temperature of TPV decreases, and its crystallinity initially increases before decreasing for doses up to 165 kGy. Infrared spectroscopy shows evidence of surface oxidation under irradiation for all compounds containing LLDPE.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Hang Liu, Michaela Zagler, Michael Nase, Katharina Weber, Joachim Albrecht
Summary: The surface topography of biodegradable polymer foils is modified by mechanical imprinting, leading to the creation of patterns that strongly affect wetting behavior and allow the preparation of controllable hydrophobic surfaces. Analysis shows that the observed effects are a result of combining topographical and compositional changes in the surface. Importantly, it is found that a specific combination of material and structure is necessary to produce water-repellent biopolymer foils suitable for packaging applications.
Article
Polymer Science
Yuanzhang Jiang, Xuyi Wang, Yanting Han, Dakai Gong, Yingchun Gu, Lin Tan
Summary: In this study, FeCl3 and poly(acrylic acid) (PAA) were doped into waterborne polyurethanes (WPUs) to create multifunctional materials with self-healing and antimicrobial properties. WPU/Fe/PAA-5.5, containing 5.5 wt % PAA, exhibited excellent mechanical properties, strong self-healing capabilities, and an impressive antimicrobial rate of over 90%. These supramolecular films were also highly recyclable through hot-pressing.
Article
Polymer Science
Longyu Tian, Min Wang, Guangming Liao, Baoliang Liu, Sujuan Zhang, Yucheng Sun, Zhen Meng, Jintao Zhang, Zaijun Lu
Summary: Two kinds of benzoxazine monomers were synthesized and used to prepare polybenzoxazine anion exchange membranes (AEMs) with quaternary ammonium functionalization. The LQPBZ AEM exhibited better ion conductivity and alkaline stability.
Article
Polymer Science
Claire A. Lemarchand
Summary: This study investigates the shock behavior of three different polymers through molecular dynamics simulations. The results reveal specificities in the shock behavior of polymers, including deviations from the linear relation between shock velocity and particle velocity, as well as differences in shear stress relaxation behind the shock front. It is found that the deviation of the Hugoniot locus is related to the change in the relative contribution of bonding and non-bonding potential energies, while polymers with higher glass transition temperatures exhibit slower shear stress relaxation.
Article
Polymer Science
Zengquan Liu, Xiaochun Yin, He Zhang, Shuo Gao, Qinglin Kuang, Yanhong Feng
Summary: A powder solid-state extension (PSSE) technology was proposed to address the high melt viscosity issue of UHMWPE. By uniaxial extension and sintering in the solid state, a highly self-reinforced material was prepared. X-ray diffraction and scattering techniques were used to study the structural evolution during the PSSE process, and a solid-phase induced transformation model was established.
Article
Polymer Science
Zhike Li, Anyu Luo, Rui Zhou, Xin Li, Haiyan Li
Summary: A novel high temperature resistance IL@SiO2 nanocapsules were successfully prepared and their friction and wear properties in PA6 composites were studied. The addition of IL@SiO2 nanocapsules reduced the friction coefficient and wear rate without affecting the mechanical properties of PA6. The synergy between the IL core and SiO2 wall in the nanocapsules improved the self-lubricating performance of the PA6 composites.
Article
Polymer Science
Xin Liu, Xuhong Guo, Qi Liao
Summary: In this study, an algorithm for accurately estimating viscosity is developed using molecular dynamics simulations and the Green-Kubo formula. This algorithm can be applied to complex systems with long correlations, such as macromolecular and biological simulation systems.
Article
Polymer Science
Hao Pu, Yun-Lei Hou, Jing -Zhou Chen, Dong -Lin Zhao
Summary: The use of modified graphene improves the interfacial adherence of carbon fibers to epoxy resin, resulting in enhanced interfacial and bending properties of CF and matrix in CF/EP composites, as well as increased interlaminar shear strength and flexural strength.
Article
Polymer Science
Wei-Chung Ke, Jin-Wei Lin, Manohar Reddy Busireddy, Yueh-Hsing Lee, Jiun-Tai Chen, Chain-Shu Hsu
Summary: This study introduces a crosslinkable monomer, TAIC, to synthesize three crosslinked polyimide films, which exhibit improved thermal, mechanical, and dielectric properties. The introduction of TAIC enhances the tensile strength, reduces the dielectric constant and dielectric loss, and decreases the coefficient of thermal expansion of the polyimide films.
Article
Polymer Science
Alex Kwasi Kumi, Ruiling Fan, Ye Chen, Yumei Zhang
Summary: The difference in leaching of amylopectin from cellulose/amylopectin/1-butyl-3-methylimidazolium chloride ([Bmim][Cl]) blends during regeneration in water and aqueous ethanol has been studied. Molecular dynamics simulations showed that the dissolution and regeneration mechanisms of amylopectin in [Bmim][Cl] are similar to cellulose in ionic liquids. Water regeneration leads to weak electrostatic interactions, resulting in high leaching of amylopectin. In contrast, ethanol-water interactions enhance electrostatic interactions among amylopectin chains, limiting amylopectin leaching in aqueous ethanol.
Article
Polymer Science
Xi Zeng, Junwei Zhou, Junbiao Peng, Chunsheng Zhang, Danling Wang, Yihu Song, Qiang Zheng
Summary: This study utilizes an oligomer deep eutectic solvent (DES) based on polyethylene glycol to regulate the vulcanization kinetics of rubber. The results show that the DES can accelerate vulcanization at low temperatures without affecting the crosslinking density and Mullins effect.
Article
Polymer Science
Qianqian Yue, Yongfei Peng, Xingjian Liu, Aihua He, Huarong Nie
Summary: The addition of metal deactivators can effectively suppress the aging of TBIR, prolong its lifespan, and have no negative effects on its physical and processing properties. These research findings are of great importance for improving the stability and aging resistance of polymers.
Article
Polymer Science
J. Gomez-Caturla, J. Ivorra-Martinez, R. Tejada-Oliveros, V Moreno, D. Garcia-Garcia, R. Balart
Summary: This work focuses on the development of environmentally friendly PLA formulations by using different esters derived from geraniol as plasticizers. The results show that these esters have good compatibility with PLA, and they can effectively enhance the elongation and plasticity of PLA, reduce its glass transition temperature, and slightly improve its water absorption capabilities.
Article
Polymer Science
Dandan Li, Zhaohui Lu, Zhao Ke, Ke Xu, Fengna Dai, Youhai Yu, Guangtao Qian, Chunhai Chen
Summary: In this study, cross-linked PI aerogel membranes with low dielectric constant and high moisture resistance were prepared by co-polymerization and scraping coating technology. The incorporation of fluorinated blocks and benzimidazole ring structures resulted in novel PI aerogel membranes with fascinating dielectric properties and outstanding moisture resistance.
Article
Polymer Science
Zhaoyang Chu, Qing Zhang, Haihua Luo, Han Zhou, Fapei Zhang, Wei Chen, Wenhua Zhang
Summary: Multi-physical fields solution processing strategy is a universal and facile method for preparing various conjugated polymer films and high-performance devices. In this study, we employed a combined microfluidic flow and ultrasonication strategy (FU) for processing CP solutions, and found a pronounced synergetic effect in promoting the pre-ordering of chains in solution. The conformation order and anisotropy of the solution were revealed through various characterizations. A non-classical nucleation model for polymer crystallization in non-equilibrium solution processing was confirmed. The roles of microfluidic flow and ultrasonication in chain aggregation and crystallization were addressed through multi-physical simulations. Compared to pristine solutions, the FU strategy showed improved solution anisotropy and crystallization kinetics, resulting in higher crystallinity in films and increased mobilities in OFET devices. The FU processing strategy provides a universal approach for regulating chain conformation and aggregation in conjugated polymer solutions.
