Article
Polymer Science
Petr Filip, Jana Zelenkova, Petra Peer
Summary: A new method for evaluating the initial polymer concentration required for the production of beadless nanofibres during electrospinning process is proposed in this study. This approach avoids the use of traditional concepts of overlap and entanglement concentrations, aiming to address the issue of inability to apply classical methods in specific material cases.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Diego Caccavo, Rosario Cavallo, Michela Abrami, Mario Grassi, Anna Angela Barba, Gaetano Lamberti
Summary: The viscoelastic behavior of hydrogels is crucial for various applications, and the use of more simple and common instrumentation is necessary for reliable characterization in different sectors. Despite plate-plate shear rheometers being one of the best options, their high cost and requirement of trained operators limit their presence mainly to engineering labs.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Physical
Patrice Estelle, Gawel Zyla
Summary: This editorial note is dedicated to the Virtual Special Issue on Advances in Rheological Behavior of Nanofluids and Ionanofluids, introducing the objectives of the VSI and the contributions published in the Journal of Molecular Liquids.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Construction & Building Technology
Cody M. Strack, Travis L. Thornell, Jennifer A. Jefcoat, Gordon J. Borne, Prasanth Alapati, Kimberly E. Kurtis, Robert D. Moser
Summary: Interdisciplinary study of alkali-silica reaction (ASR) provides a quantitative understanding of the viscoelastic behavior of ASR products. Six ASR gels with different compositions were synthesized, and the polymerization of SiO2 into 3-dimensional viscoelastic networks was found to depend on the concentration and type of cations. Ca2+ gels exhibited a higher level of gel network strength earlier than Na and K-dominated gels. The addition of Li+ had differing effects on the viscoelastic behavior and Q4 production of Na+ and K+ gels.
CEMENT AND CONCRETE RESEARCH
(2023)
Article
Polymer Science
Angel Romo-Uribe
Summary: The study investigated the extensional flow behavior of PBIC and HPC solutions under capillary breakup, finding differences in molecular conformation and breakup times between the two polymers.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Houfang Chi, Hui Han, Guannan Tian, Hengyu Luo, Song Hong, Junyu Li, Haiqing Hu
Summary: By adding 0.1 wt% fillers, the melt viscosity of triblock copolymer styrene-isoprene-styrene (SIS) filling systems decreased to some extent. The reduction in viscosity cannot be solely explained by nanoscale effects of particles, but is also related to the damage of the PS microphase in SIS. The dynamic viscoelasticity of the filling systems was also investigated.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Manuela Walteros-Leon, Monica Lucia Alvarez-Lainez
Summary: Natural rubber latex (NRL) is a complex colloidal system that can be concentrated using hydroxyethyl cellulose (HEC) and sodium dodecyl sulphate (SDS), which alter its colloidal and rheological properties. SDS plays a key role in enhancing the creaming process and improving the electrostatic stability of the colloidal system.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Yunxu Yang, Kunxiang Shi, Mingzhu Zhou, Yucai Shen, Tingwei Wang
Summary: This study developed a low viscosity PVC plastisol emulsion (PDE) using water as a thinner, by blending PVCE with DINPE. The results showed that the emulsion had a uniform droplet size distribution, strong tensile strength, elongation at break, and weak gel structure. This demonstrated the effectiveness of water in reducing the viscosity of PVC plastisol and promoting its application in glove production.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Energy & Fuels
Zeeshan Tariq, Ahmed BinGhanim, Murtada Saleh Aljawad, Muhammad Shahzad Kamal, Mohamad Mahmoud, Zuhair AlYousef
Summary: This study generated a large amount of data on effective bulk foam viscosity using a high pressure high temperature (HPHT) foam rheometer device, and developed a predictive model through machine learning techniques. Temperature, corrosion inhibitor, and shear rate were found to have significant impact on reducing foam viscosity.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Polymer Science
Francisco Jose Ortega, Antonio Abad Cuadri, Pedro Partal, Francisco Javier Navarro
Summary: This paper proposes a successful approach of using Dodecenyl Succinic Anhydride (DSA) to soften aged bitumen and inhibit aging in road recycling. The experimental results show that DSA has a greater potential to soften bitumen compared to diluent oil, and it improves the wettability and compaction of asphalt.
Article
Chemistry, Physical
Sergey O. Ilyin, Ivan I. Konstantinov
Summary: The rheological properties of five biphenyl derivatives, including their flow behavior and phase equilibrium, were investigated in detail. It was found that the increase of structural ordering leads to a gradual transition from liquid-like to solid-like flow behavior. Shear can affect the phase equilibrium of certain smectics, and different structural ordering and molecular packing also influence their rheological properties.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Polymer Science
Sandeep S. Pole, Avraam I. Isayev
Summary: The study investigated the nonlinear stress relaxation behavior of star-shaped SSBR/silica compounds with different filler surface areas, concluding that the relaxation modulus behavior of filled compounds is influenced by surface area. Higher surface area fillers resulted in increased relaxation moduli, particularly in compounds with high surface area silica. While both models were effective in describing experimental observations at low strain levels, at high strain levels there was a tendency for the simulations to overpredict the measured values, possibly due to slip effects.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Xianglong Li, Yishen Lu, Teng Hou, Jing Zhou, Antuo Wang, Xianggui Zhang, Bin Yang
Summary: This article investigates the jet evolution process and fiber formation mechanism of amylopectin rich starch solution and compares it with linear polyvinylpyrrolidone (PVP) solution. The results show that beads formation in starch fibers can be controlled by solution concentration and amylose/amylopectin types, while PVP fibers exhibit minimal bead formation.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Yuanrui Shao, Ruijie Han, Xudong Quan, Kangmin Niu
Summary: This paper explores the potential of direct ink writing of soft materials in 3D printing, focusing on the rheological properties of silicone rubber inks and their impact on the printing process. The study provides a foundation for parameter configuration and ink viscosity adjustment, while also offering new insights into filament diameter adjustment through investigating the die swell ratio of nano-silica-reinforced silicone rubber inks.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Angel Romo-Uribe
Summary: This research demonstrates the tuning of conformation in semiflexible polymers under different solvent conditions using shear rheology, showing changes in persistence length and scaling law. The results provide insights into the behavior of these polymers in solution and help understand the Saito scaling for anisotropic particles.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Energy & Fuels
J. Hermoso, F. J. Martinez-Boza, C. Gallegos
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2017)
Article
Energy & Fuels
Juan Hermoso, Francisco J. Martinez-Boza, Crispulo Gallegos
OIL & GAS SCIENCE AND TECHNOLOGY-REVUE D IFP ENERGIES NOUVELLES
(2017)
Article
Chemistry, Applied
D. Reinoso, M. J. Martin-Alfonso, P. F. Luckham, F. J. Martinez-Boza
CARBOHYDRATE POLYMERS
(2019)
Article
Construction & Building Technology
Francisco J. Ortega, Francisco J. Navarro, Martin Jasso, Ludo Zanzotto
CONSTRUCTION AND BUILDING MATERIALS
(2019)
Article
Polymer Science
Simona Senise, Virginia Carrera, Antonio Abad Cuadri, Francisco Javier Navarro, Pedro Partal
Article
Construction & Building Technology
A. A. Cuadri, F. J. Navarro, P. Partal
MATERIALS AND STRUCTURES
(2020)
Article
Polymer Science
Antonio A. Cuadri, Clara Delgado-Sanchez, Francisco Javier Navarro, Pedro Partal
Article
Green & Sustainable Science & Technology
A. A. Cuadri, S. Perez-Moreno, C. L. Altamar, F. J. Navarro, J. P. Bolivar
Summary: The study aims to utilize phosphogypsum waste in sustainable paving practice by producing FY-foamed bitumen for road applications. The results show that FY-foamed bitumen has enhanced engineering properties compared to bitumen prepared with natural gypsum, meeting EU regulations for NORM materials in building materials.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Clara Delgado-Sanchez, Antonio Abad Cuadri, Francisco Javier Navarro, Pedro Partal
Summary: This study reports a novel method for the synthesis and characterization of anhydrous phase change emulsions. By selecting an appropriate silicone surfactant and combining a post-processing protocol, the emulsions achieved stability during thermal cycles, reducing the crystallinity of the PCM.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Polymer Science
Rodrigo alvarez-Barajas, Antonio A. Cuadri, Francisco J. Navarro, Francisco J. Martinez-Boza, Pedro Partal
Summary: This study explores the use of three native lignin-rich products from industrial bioethanol production and pulping as emulsifiers, finding that emulsification pH strongly affects the stabilization ability of lignins.
Article
Chemistry, Multidisciplinary
Clara Delgado-Sanchez, Pedro Partal, Maria Jose Martin-Alfonso, Francisco Javier Navarro
Summary: This study successfully prepared stable polyethylene glycol-in-silicone oil phase change emulsions by controlling the composition and post-processing conditions. The compatibility of the silicone surfactant with the disperse phase was found to significantly affect the crystallinity and final properties of the emulsion.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Polymer Science
Francisco Jose Ortega, Antonio Abad Cuadri, Pedro Partal, Francisco Javier Navarro
Summary: This paper proposes a successful approach of using Dodecenyl Succinic Anhydride (DSA) to soften aged bitumen and inhibit aging in road recycling. The experimental results show that DSA has a greater potential to soften bitumen compared to diluent oil, and it improves the wettability and compaction of asphalt.
Article
Polymer Science
Avido Yuliestyan, Pedro Partal, Francisco J. Navarro, Raquel Martin-Sampedro, David Ibarra, Maria E. Eugenio
Summary: Oil-in-water bitumen emulsions stabilized by biobased surfactants, specifically lignin derived from the kraft pulping and bioethanol industries, were investigated in this study. A comprehensive chemical characterization of the lignin samples was conducted, revealing differences in lignin concentration, molecular weight, and presence of carbohydrate residues and ashes. The emulsification ability of lignin-based cationic surfactants was evaluated on prototype silicone oil-in-water emulsions, with cationic kraft lignin showing the best performance. It successfully stabilized bitumen emulsions with a high bitumen content using small surfactant concentrations.
Article
Energy & Fuels
Clara Delgado-Sanchez, Pedro Partal, Maria Jose Martin-Alfonso, Francisco Javier Navarro
Summary: Non-aqueous phase change emulsions are promising multifunctional fluids composed of phase change materials dispersed in carrier fluids. This paper presents the development of stable emulsions using stearic acid and silicone oil, and evaluates their properties and stability. The results demonstrate that these emulsions have the potential to be used for both latent heat storage and transport under extreme conditions.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Green & Sustainable Science & Technology
R. Alvarez-Barajas, A. A. Cuadri, C. Delgado-Sanchez, F. J. Navarro, P. Partal
Summary: Non-bituminous binders have been developed as sustainable roofing materials using bio-based rosin esters, waste cooking oil, and recycled polyethylene. The compatibility of binder compounds was studied through comprehensive characterization. Thermal conductivity and solar radiation tests revealed the enhanced energy efficiency of the non-bituminous binder compared to a reference polymer modified bitumen. The developed binders are expected to act as reflective building materials to reduce heat island effects and save energy.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Energy & Fuels
Yingna Du, Chen Huang, Wei Jiang, Qiangwei Yan, Yongfei Li, Gang Chen
Summary: In this study, anionic surfactants modified hydrotalcite was used as a flow improver for crude oil under low-temperature conditions. The modified hydrotalcite showed a significant viscosity reduction effect on crude oil. The mechanism of the modified hydrotalcite on viscosity and pour point of crude oil was explored through characterization and analysis of the modified hydrotalcite and oil samples.
Article
Energy & Fuels
Mohammad Saeid Rostami, Mohammad Mehdi Khodaei
Summary: In this study, a hybrid structure, MIL-53(Al)@MWCNT, was synthesized by combining MIL-53(Al) particles and -COOH functionalized multi-walled carbon nanotube (MWCNT). The hybrid structure was then embedded in a polyethersulfone (PES) polymer matrix to prepare a mixed matrix membrane (MMM) for CO2/CH4 and CO2/N2 separation. The addition of MWCNTs prevented MIL-53(Al) aggregation, improved membrane mechanical properties, and enhanced gas separation efficiency.
Article
Energy & Fuels
Yunlong Li, Desheng Huang, Xiaomeng Dong, Daoyong Yang
Summary: This study develops theoretical and experimental techniques to determine the phase behavior and physical properties of DME/flue gas/water/heavy oil systems. Eight constant composition expansion (CCE) tests are conducted to obtain new experimental data. A thermodynamic model is used to accurately predict saturation pressure and swelling factors, as well as the phase boundaries of N2/heavy oil systems and DME/CO2/heavy oil systems, with high accuracy.
Article
Energy & Fuels
Morteza Afkhamipour, Ebad Seifi, Arash Esmaeili, Mohammad Shamsi, Tohid N. Borhani
Summary: Non-conventional amines are being researched worldwide to overcome the limitations of traditional amines like MEA and MDEA. Adequate process and thermodynamic models are crucial for understanding the applicability and performance of these amines in CO2 absorption, but studies on process modeling for these amines are limited. This study used rate-based modeling and Deshmukh-Mather method to model CO2 absorption by DETA solution in a packed column, validated the model with experimental data, and conducted a sensitivity analysis of mass transfer correlations. The study also compared the CO2 absorption efficiency of DETA solution with an ionic solvent [bmim]-[PF6] and highlighted the importance of finding optimum operational parameters for maximum absorption efficiency.
Article
Energy & Fuels
Arastoo Abdi, Mohamad Awarke, M. Reza Malayeri, Masoud Riazi
Summary: The utilization of smart water in EOR operations has gained attention, but more research is needed to understand the complex mechanisms involved. This study investigated the interfacial tension between smart water and crude oil, considering factors such as salt, pH, asphaltene type, and aged smart water. The results revealed that the hydration of ions in smart water plays a key role in its efficacy, with acidic and basic asphaltene acting as intrinsic surfactants. The pH also influenced the interfacial tension, and the aged smart water's interaction with crude oil depended on asphaltene type, salt, and salinity.
Article
Energy & Fuels
Dongao Zhu, Kun Zhu, Lixian Xu, Haiyan Huang, Jing He, Wenshuai Zhu, Huaming Li, Wei Jiang
Summary: In this study, cobalt-based metal-organic frameworks (Co-based MOFs) were used as supports and co-catalysts to confine the NHPI catalyst, solving the leaching issue. The NHPI@Co-MOF with carboxyl groups exhibited stronger acidity and facilitated the generation of active oxygen radicals O2•, resulting in enhanced catalytic activity. This research provides valuable insights into the selection of suitable organic linkers and broadens the research horizon of MOF hybrids in efficient oxidative desulfurization (ODS) applications.
Article
Energy & Fuels
Edwin G. Hoyos, Gloria Amo-Duodu, U. Gulsum Kiral, Laura Vargas-Estrada, Raquel Lebrero, Rail Munoz
Summary: This study investigated the impact of carbon-coated zero-valent nanoparticle concentration on photosynthetic biogas upgrading. The addition of nanoparticles significantly increased microalgae productivity and enhanced nitrogen and phosphorus assimilation. The presence of nanoparticles also improved the quality of biomethane produced.
Article
Energy & Fuels
Yao Xiao, Asma Leghari, Linfeng Liu, Fangchao Yu, Ming Gao, Lu Ding, Yu Yang, Xueli Chen, Xiaoyu Yan, Fuchen Wang
Summary: Iron is added as a flocculant in wastewater treatment and the hydrothermal carbonization (HTC) of sludge produces wastewater containing Fe. This study investigates the effect of aqueous phase (AP) recycling on hydrochar properties, iron evolution and environmental assessment during HTC of sludge. The results show that AP recycling process improves the dewatering performance of hydrochar and facilitates the recovery of Fe from the liquid phase.
Article
Energy & Fuels
He Liang, Tao Wang, Zhenmin Luo, Jianliang Yu, Weizhai Yi, Fangming Cheng, Jingyu Zhao, Xingqing Yan, Jun Deng, Jihao Shi
Summary: This study investigated the influence of inhibitors (carbon dioxide, nitrogen, and heptafluoropropane) on the lower flammability limit of hydrogen and determined the critical inhibitory concentration needed for complete suppression. The impact of inhibitors on explosive characteristics was evaluated, and the inhibitory mechanism was analyzed with chemical kinetics. The results showed that with the increase of inhibitor quantity, the lower flammability limit of hydrogen also increased. The research findings can contribute to the safe utilization of hydrogen energy.
Article
Energy & Fuels
Zonghui Liu, Zhongze Zhang, Yali Zhou, Ziling Wang, Mingyang Du, Zhe Wen, Bing Yan, Qingxiang Ma, Na Liu, Bing Xue
Summary: In this study, high-performance solid catalysts based on phosphotungstic acid (HPW) supported on Zr-SBA-15 were synthesized and evaluated for the one-pot conversion of furfural (FUR) to γ-valerolactone (GVL). The catalysts were characterized using various techniques, and the ratio of HPW and Zr was found to significantly affect the selectivity of GVL. The HPW/Zr-SBA-15 (2-4-15) catalyst exhibited the highest GVL yield (83%) under optimized reaction conditions, and it was determined that a balance between Bronsted acid sites (BAS) and Lewis acid sites (LAS) was crucial for achieving higher catalytic performance. The reaction parameters and catalyst stability were also investigated.
Article
Energy & Fuels
Michael Stoehr, Stephan Ruoff, Bastian Rauch, Wolfgang Meier, Patrick Le Clercq
Summary: As part of the global energy transition, an experimental study was conducted to understand the effects of different fuel properties on droplet vaporization for various conventional and alternative fuels. The study utilized a flow channel to measure the evolution of droplet diameters over time and distance. The results revealed the temperature-dependent effects of physical properties, such as boiling point, liquid density, and enthalpy of vaporization, and showed the complex interactions of preferential vaporization and temperature-dependent influences of physical properties for multi-component fuels.
Article
Energy & Fuels
Yuan Zhuang, Ruikang Wu, Xinyan Wang, Rui Zhai, Changyong Gao
Summary: Through experimental validation and optimization of the chemical kinetic model, it was found that methanol can accelerate the oxidation reaction of ammonia, and methanol can be rapidly oxidized at high concentration. HO2 was found to generate a significant amount of OH radicals, facilitating the oxidation of methanol and ammonia. Rating: 7.5/10.
Article
Energy & Fuels
Radwan M. EL-Zohairy, Ahmed S. Attia, A. S. Huzayyin, Ahmed I. EL-Seesy
Summary: This paper presents a lab-scale experimental study on the impact of diethyl ether (DEE) as an additive to waste cooking oil biodiesel with Jet A-1 on combustion and emission features of a swirl-stabilized premixed flame. The addition of DEE to biodiesel significantly affects the flame temperature distribution and emissions. The W20D20 blend of DEE, biodiesel, and Jet A-1 shows similar flame temperature distribution to Jet A-1 and significantly reduces UHC, CO, and NOx emissions compared to Jet A-1.
Article
Energy & Fuels
Jiang Bian, Ziyuan Zhao, Yang Liu, Ran Cheng, Xuerui Zang, Xuewen Cao
Summary: This study presents a novel method for ammonia separation using supersonic flow and develops a mathematical model to investigate the condensation phenomenon. The results demonstrate that the L-P nucleation model accurately characterizes the nucleation process of ammonia at low temperatures. Numerical simulations also show that increasing pressure and concentration can enhance ammonia condensation efficiency.
Article
Energy & Fuels
Shiyuan Pan, Xiaodan Shi, Beibei Dong, Jan Skvaril, Haoran Zhang, Yongtu Liang, Hailong Li
Summary: Integrating CO2 capture with biomass-fired combined heat and power (bio-CHP) plants is a promising method for achieving negative emissions. This study develops a reliable data-driven model based on the Transformer architecture to predict the flowrate and CO2 concentration of flue gas in real time. The model validation shows high prediction accuracy, and the potential impact of meteorological parameters on model accuracy is assessed. The results demonstrate that the Transformer model outperforms other models and using near-infrared spectral data as input features improves the prediction accuracy.
