Article
Engineering, Chemical
Si-Hua Liu, Chao Tang, Jingguo She, Xiaolong Lu, Hongwei Zhang, Chunrui Wu
Summary: This study designed and synthesized a poly(ionic liquid) copolymer to modify the hydrophilicity and pore structure of ultrafiltration membranes, resulting in improved membrane performance. The modified membranes showed significantly increased pure water flux, mechanical strength, and flux recovery rate. The stable presence of the copolymer in the membrane ensured the maintained hydrophilicity even after continuous washing for 30 days.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Seyed Ali Naziri Mehrabani, Tannaz Sadeghi Rad, Vahid Vatanpour, Alireza Khataee, Mustafa Kaya, Bihter Zeytuncu, Ismail Koyuncu
Summary: The incorporation of CuCr NLDH-GO improves the hydrophilicity, permeability, and antifouling properties of PVC ultrafiltration membranes. The addition of CuCr NLDH-GO significantly enhances the hydrophilicity, resulting in a nearly twofold increase in pure water permeability. Furthermore, the modified membranes show improved antifouling performance and dye rejection capabilities.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Polymer Science
Shang-Lin Yeh, Piyush Deval, Wei-Bor Tsai
Summary: In this study, a simple and universal technique using pyrogallol-assisted immobilization of poly(ethylene glycol) (PEG) was introduced to deposit a thin antifouling layer on biomaterials. By controlling the amounts of PG and PEG and the coating time, the PG/PEG coating was able to reduce more than 99% of cell adhesion and protein adsorption, while providing a transparent and robust coating that can survive sterilization conditions. This technique has great potential for applications in transparent antifouling coatings for biomedical devices.
Review
Engineering, Environmental
Tausif Ahmad, Chandan Guria
Summary: Various industries generate wastewater containing toxic contaminants, and low-cost polyvinyl chloride (PVC) has attracted attention as a membrane material. However, fouling of hydrophobic PVC membranes is a major hindrance. To improve their performance, the hydrophilicity and fouling resistance properties of the PVC membranes should be enhanced. This review provides an overview of current trends, research, and developments in PVC membranes and discusses potential approaches for improving their performance.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Chemical
Guijing Chen, Yuanyuan Yang, Dongdong Kang, Qingqing Qin, Jinbo Jin, Huiju Shao, Shuhao Qin
Summary: Blending styrene-maleic anhydride copolymer (SMA) with CPVC can improve the performance of ultrafiltration membranes by adjusting microstructures, increasing pure water flux and permeability, reducing irreversible fouling index, and enhancing flux recovery ratio.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Haifu Gao, Jingguo She, Sihua Liu, Le Shi, Xiaolong Lu, Jianhua Zhang, Chunrui Wu
Summary: This paper studies a simple method to improve the hydrophilicity and pore uniformity of PVC UF membranes. By grafting hydrophilic amine molecules onto PVC chains during the dissolution process, the membrane achieved robust hydrophilicity and high pore size uniformity. With the addition of an appropriate amount of modifier, the modified membrane showed a 10-fold increase in pure water flux and a 27% increase in BSA rejection. The modified membrane maintained its improved hydrophilicity through long-term filtration and acid/alkali soaking tests.
Article
Polymer Science
Marzie Farjami, Abdolreza Moghadassi, Vahid Vatanpour
Summary: The study investigated the effects of DMAc and NMP solvents on the properties of EPVC/nano-boehmite nanocomposite membranes, finding that NMP solvent showed better performance in improving membrane properties.
IRANIAN POLYMER JOURNAL
(2021)
Article
Polymer Science
Habib Etemadi, Hamidreza Qazvini
Summary: The study prepared PVC/Al2O3 nanocomposite ultrafiltration membranes with different Al2O3 contents, with the 1.5 wt.% Al2O3 nanoparticles membrane showing higher porosity and hydrophilicity. FE-SEM images showed that more and larger pores were formed on the membrane surface with the addition of Al2O3.
Article
Engineering, Environmental
Bahadir Mert Erdugan, Elfi Demirel, Ender Suvaci
Summary: The use of nanomaterials in polymeric composite membranes has the potential to improve separation performance. However, the dispersion and stability of these nanomaterials have been major issues for commercial applications. In this study, zinc oxide powders were blended into polyvinyl chloride ultrafiltration membranes, resulting in improved membrane microstructure, separation performance, and bulk properties. The membranes with 0.05% weight MicNo (R) platelets had higher water flux and enhanced antifouling properties compared to pristine PVC and commercial ZnO-doped membranes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Polymer Science
Bahriye Eryildiz, Basak Keskin, Mehmet Emin Pasaoglu, Turker Turken, Vahid Vatanpour, Ismail Koyuncu
Summary: This study used PVC membranes to improve water purification and fouling performance. The results showed that with the increase of PVC content, the contact angle of the membrane increased and the overall porosity decreased. The rejection of BSA and HA increased and the permeate flux decreased with the addition of PVC. Furthermore, the fouling resistance of the membrane improved with the increase of PVC content.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Chemical
Zhaofeng Wang, Panyi Chen, Yang Liu, Hanxiang Guo, Nan Sun, Qiqi Cai, Yueying Yu, Fangbo Zhao
Summary: A new aromatic diamine monomer BANPZ was designed and synthesized, leading to the preparation of a novel zwitterionic polyimide ZPI. ZPI membrane exhibited persistent antifouling property and excellent long-term performance stability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Meng Zhang, Shu Jiang, Xishou Guo, Xiaobin Tang, Langming Bai, Jinlong Wang, Han Zhang, Daliang Xu, Rui Wu, Luming Liu, Heng Liang
Summary: This study incorporated Fe3O4 nanoparticles into a polyethersulfone membrane to mitigate membrane fouling. The combination of a magnetic field and Fe3O4 nanoparticles enhanced the permeability and separation performance of the membrane. The optimization of the membrane preparation process resulted in a composite membrane with significantly enhanced antifouling capability.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Chemical
Guijing Chen, Wancen Xie, Chen Chen, Qidong Wu, Shuhao Qin, Baicang Liu
Summary: In this study, N-Phenylmaleimide-styrene-maleic anhydride (NSM) copolymer was used as an additive to modify the properties of chlorinated polyvinyl chloride (CPVC) composite ultrafiltration membranes. The addition of NSM changed the morphology of the membrane surface and improved its thermal stability and water permeability. The NSM copolymers remained anchored to the membrane surface during phase separation, which affected the membrane separation behavior. Moreover, the NSM-treated membranes exhibited higher rejection rates for humic acid and sodium alginate, showing better anti-fouling performance.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Susan Davari, Mohammadreza Omidkhah, Simin Salari
Summary: In this study, polydopamine (PDA) was used to enhance the adhesion of titanium dioxide (TiO2) nanoparticles (NPs) onto polyethersulfone (PES) ultrafiltration membrane, leading to improved stability and antifouling properties. However, the coatings also resulted in decreased flux due to increased hydraulic resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Chemical
Homayun Khezraqa, Arian Samiei, Habib Etemadi, Mehdi Salami-Kalajahi
Summary: Polyvinyl chloride (PVC)/copper oxide (CuO) nanocomposite membranes with different loading levels of CuO nanoparticles were fabricated using the phase inversion method. These membranes were tested for the removal of bovine serum albumin (BSA) from water in a submerged membrane system. The results showed that the hydrophilicity and porosity of the membranes were enhanced with higher loading of CuO nanoparticles. The addition of CuO nanoparticles also increased the number and size of pores on the membrane surface.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
Article
Environmental Sciences
Mohammad Nakhaei, Mohammad Hassan Heidarian, Vahid Vatanpour, Khalil Rezaei
Summary: The clinoptilolite zeolite has been tested for its ability to remove lead from polluted groundwater in water wells. Batch and fixed-bed column experiments were conducted to assess its performance. The results showed that the highest lead removal efficiency was achieved at pH = 6 and 298 K within 90 minutes. The Freundlich model accurately predicted the adsorption behavior, and the pseudo-second order equation was the best-fitting kinetic model for clinoptilolite. Column experiments indicated that a flow rate of 1 mL/min, a bed height of 10 cm, and a grain size of 0.6 to 0.8 mm resulted in the highest removal efficiency. The Thomas and Yoon-Nelson models accurately predicted the breakthrough curves.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Polymer Science
Foad Gholami, Sirus Zinadini, Ali Akbar Zinatizadeh, Samira Sanjabi, Ali Reza Mahdavian, Mahya Samari, Vahid Vatanpour
Summary: New fouling resistance and stimulus-responsive nanofiltration membranes were fabricated by adding photochromic nanofillers to the polyethersulfone matrix. The modified membranes demonstrated improved performance with enhanced pure water flux and better flux recovery ratio. The addition of photochromic materials made the membranes sensitive to environmental conditions, leading to color changes.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Chemistry, Applied
Vahid Vatanpour, Ayse Yuksekdag, Meltem Agtas, Mohammad Mehrabi, Ehsan Salehi, Roberto Castro-Munoz, Ismail Koyuncu
Summary: In this study, cellulose acetate (CA)-based nanofiltration membranes modified with zeolitic imidazole framework-8 (ZIF-8) particles were prepared to improve flux and filtration performance. The addition of ZIF-8 resulted in decreased contact angle values, increased pure water flux, higher flux recovery ratio, and reduced fouling in all ZIF-8 doped membranes. Furthermore, the dye removal efficiency increased from 95.2% to 97.7% with the addition of ZIF-8 particles for Reactive Black 5 dye.
CARBOHYDRATE POLYMERS
(2023)
Article
Engineering, Chemical
Houriye Aqaei, Mahsa Haddad Irani-nezhad, Alireza Khataee, Vahid Vatanpour
Summary: This study investigated the fabrication and modification of emulsion polyvinyl chloride (EPVC) membranes using tungsten disulfide (WS2) nanosheets. The addition of WS2 nanosheets improved the water flux and antifouling properties of the membranes. The use of 1 wt% WS2/EPVC membrane resulted in a significant increase in pure water flux and flux recovery ratio, as well as high rejection rates for dyes. Reusability tests showed minimal flux drop and negligible changes in rejection for bovine serum albumin (BSA), indicating the stability of the 1 wt% WS2/EPVC membrane.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Chemical
Oyku Mutlu-Salmanli, Bahriye Eryildiz, Vahid Vatanpour, Zeynep Deliballi, Baris Kiskan, Ismail Koyuncu
Summary: In this study, a novel hydrophobic blend polyvinylidene fluoride (PVDF) nanofibrous membrane with poly-benzoxazine (PBz) was fabricated and showed promising potential in membrane distillation (MD) applications. The addition and crosslinking of poly-benzoxazine improved the water contact angle and mechanical properties of the membranes. The blended and cured membranes exhibited higher rejections and permeate flux compared to the pristine membrane.
Article
Environmental Sciences
A. Yagmur Goren, Yasar K. Recepoglu, Vahid Vatanpour, Yeojoon Yoon, Alireza Khataee
Summary: Increased environmental pollution is a critical issue that requires attention. Photocatalytic, adsorption, and membrane filtration methods using graphitic carbon nitride (g-C3N4) quantum dots (QDs) show promise in wastewater treatment due to their efficiency, selectivity, low cost, and environmentally friendly nature. This review discusses the synthesis techniques, operating parameters, modification effects, practical applications, and potential of g-C3N4 QDs for the removal of contaminants in wastewater, providing a foundation for future research.
ENVIRONMENTAL RESEARCH
(2023)
Article
Polymer Science
Bahriye Eryildiz, Basak Keskin, Mehmet Emin Pasaoglu, Turker Turken, Vahid Vatanpour, Ismail Koyuncu
Summary: This study used PVC membranes to improve water purification and fouling performance. The results showed that with the increase of PVC content, the contact angle of the membrane increased and the overall porosity decreased. The rejection of BSA and HA increased and the permeate flux decreased with the addition of PVC. Furthermore, the fouling resistance of the membrane improved with the increase of PVC content.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Vahid Vatanpour, Seyed Ali Naziri Mehrabani, Mahdie Safarpour, Mohammad Reza Ganjali, Sajjad Habibzadeh, Ismail Koyuncu
Summary: In this study, non-thermal glow discharge plasma was used to modify the surface of natural clinoptilolite zeolite before incorporating it into polyethersulfone (PES) membrane. The effect of plasma gas pressure on fouling resistance and separation performance of the membranes was investigated. The results showed that increasing plasma gas pressure improved the water flux and antifouling behavior of the membranes, while enhancing the dye separation efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Nanoscience & Nanotechnology
Amir Hossein Behroozi, Vahid Vatanpour, Louise Meunier, Mohammad Mehrabi, Ehssan H. Koupaie
Summary: Membrane-based separation processes are widely used in water purification plants worldwide. Atomic layer deposition (ALD) is an emerging technique that can upgrade membranes for improved water and gas separation applications. ALD deposits thin and uniform coating layers on the membrane surface, enhancing its properties such as antifouling, selectivity, permeability, and hydrophilicity. ALD can broaden the applications of membranes in treating emerging contaminants in water and air. This review provides a comprehensive guideline for developing next-generation membranes with improved filtration and separation performance using ALD-based fabrication and modification.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Electrical & Electronic
Mohammad Rostami, Samaneh Maghami, Vahid Vatanpour, Hossein Nikmanesh
Summary: The structural, morphological, magnetic, and electromagnetic interference (EMI) shielding properties of N-doped reduced graphene oxide (NRGO) decorated with La-doped Zn-Cu-Ni ferrite nanocomposite were investigated. The nanocomposites showed unique EMI shielding properties with a shielding effectiveness above 20 dB in the range of 2-18 GHz and a thickness of just 2 mm.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Abdolreza Moghadassi, Shakiba Ghohyei, Samaneh Bandehali, Morteza Habibi, Maryam Eskandari
Summary: Cuprous oxide nanoparticles were synthesized and used as an additive to fabricate polyethersulfone nanofiltration membranes. The membranes exhibited improved hydrophilicity and higher rejection rates for Na2SO4 and heavy metals compared to the bare PES membrane. The addition of Cu2O nanoparticles also resulted in an increase in water flux and improved antifouling properties.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Vahid Vatanpour, Shadi Paziresh, Amir Hossein Behroozi, Hamid Karimi, Mir Saeed Esmaeili, Sina Parvaz, Siamak Imanian Ghazanlou, Ali Maleki
Summary: The hydrophobicity and low permeability issues of nanofiltration (NF) membranes were addressed by modifying polyvinyl chloride (PVC) membranes with iron (III) oxide@Gum Arabic (Fe3O4@GA) nanocomposite. The addition of 0.25 wt% Fe3O4@GA/PVC membrane significantly improved the removal of organic contaminants with high rejection rates. Thus, incorporating Fe3O4@GA nanocomposite into the membrane casting solution is an effective approach for modifying NF membranes.
Review
Engineering, Chemical
Amir Hossein Behroozi, Muayad Al-Shaeli, Vahid Vatanpour
Summary: Nanofiltration (NF) is a promising process for treating contaminated air and water environments. Electrospinning can produce electrospun nanofiber membranes (ENMs) with large specific surface area and selective wettability. The modification and post-treatment of ENMs can improve their filtration performance. Future developments should focus on producing more durable ENMs with well-controlled systems.
Article
Engineering, Chemical
Seyed Ali Naziri Mehrabani, Tannaz Sadeghi Rad, Vahid Vatanpour, Alireza Khataee, Mustafa Kaya, Bihter Zeytuncu, Ismail Koyuncu
Summary: The incorporation of CuCr NLDH-GO improves the hydrophilicity, permeability, and antifouling properties of PVC ultrafiltration membranes. The addition of CuCr NLDH-GO significantly enhances the hydrophilicity, resulting in a nearly twofold increase in pure water permeability. Furthermore, the modified membranes show improved antifouling performance and dye rejection capabilities.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Engineering, Chemical
Sevde Korkut, Vahid Vatanpour, Ismail Koyuncu
Summary: This review summarizes the various driving methods of carbon-based quantum dots in membrane applications, as well as the synthesis methods and the influence of nanocomposite structures. The article also discusses the challenging features and future directions of using CQDs in membranes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Ananta Dutta, Surjya K. Pal, Sushanta K. Panda
Summary: In the realm of micro-Friction Stir Welding (FSW), this study investigates the influence of pinless and pin tool on hook formation, temperature evolution, and bonding mechanisms. The study reveals that pin tool improves joint strength and reduces axial force during traversing. Pin tool also exhibits a higher proportion of recrystallized grains compared to pinless tool, resulting in better weld quality.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Abdelmalek Habes, Mehdi Derradji, Oussama Mehelli, Fouad Benaliouche, Slimane Abdous, Youcef Medjaouri, Nour Chirine Abderrahim, Hakima Fodil, Mohamed El Amine Kadi
Summary: In recent years, there has been significant progress in advancing nanomaterials with exceptional properties for electromagnetic (EM) wave absorption. This study investigates the application of a novel thermosetting phenolic resin as a polymeric matrix for EM shielding, highlighting the enhancement of stability with the incorporation of zinc oxide nanoparticles.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xiaoxing Zhang, Yongchao Luo, Kai Xu, Weihao Liu, Shuangshuang Tian, Benli Liu, Jiahao Wang, Feng Hu
Summary: This study calculates and analyzes the adsorption performance and sensing characteristics of Cu-MoTe2 for SF6 decomposition components. The results show that Cu-MoTe2 chemisorbs SO2 and H2S, while physisorbs SOF2. Cu-MoTe2 has the potential to be used as a chemical sensor material.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xin Qu, Xinyu Sang, Yarong Lv, Ce Wang, Ping Hu, Quanyi Guo, Yong Liu
Summary: In this study, a PLLA-COI multilayer nanofiber membrane was prepared to prevent peritendinous adhesion, and it was found to have good cell compatibility and anti-adhesion effect, effectively promoting the recovery of Achilles tendon injury.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Ching-Yuan Ho, Chen-Yi Su, Wei-Zhe Hu
Summary: An equivalent electrical circuit (EEC) is established to understand the droplet-base electricity generation (DEG) mechanism, using voltage-time curve decomposition. The concept of Debye length is introduced to explain charge density at the interface between the ionic droplet and the PTFE surface. This study provides valuable insights into the exponential decay of output voltage and the improvement of solar panel performance in alternating rainy and dry weather through correct circuit design.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Iori Ono, Takeo Oku, Atsushi Suzuki, Sakiko Fukunishi, Tomoharu Tachikawa, Tomoya Hasegawa
Summary: The effects of adding rubidium (Rb) and ethylammonium (CH3CH2NH3, EA) to guanidinium [C(NH2)3, GA] based CH3NH3PbI3 perovskite solar cells were investigated. The lattice constants and (100)-orientation of EA and Rb-modified perovskite crystals increased compared to the as-prepared perovskite. The addition of GA and EA effectively improved the photovoltaic properties of the device under indoor light conditions.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xuewu Li, Hongxing Wang, Zhiguo Xing, Yanfei Huang, Weiling Guo, Haidou Wang, Yanfang Zhang, Longlong Zhou
Summary: This study prepared a novel composite antireflective structure with slotted holes using FDTD simulation combined with femtosecond laser design to further improve the infrared anti-reflective performance. The results show that the antireflection performance of the simulated groove-hole composite structure is better than that of the individual groove and hole structures, and the nanoparticle structures can further improve the antireflection performance in the infrared region.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Sepideh Soltani, Hajar Ghanbari, S. Mohammad Mirkazemi
Summary: In this study, h-BN and r-BN structures were synthesized through controlled nitridation. The h-BN exhibited sheet-like morphology, while the r-BN formed needle-like hollow structures.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Wanying Zhang, Xiaoyuan Wang, Yibo Ai, Weidong Zhang
Summary: This study investigates the impact of oxygen corrosion on the mechanical properties of uranium and uranium alloys and develops a feature-guided decision tree algorithm for prediction. The research highlights crucial correlations discovered through feature engineering, improving the performance of machine learning models. The mechanical properties of uranium and uranium alloys after oxygen corrosion are successfully predicted with a prediction error of less than 5%.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Qiong Cheng, Yao Zhao, Juntao Zhuang, Ahmad M. Alshamrani
Summary: This study presents a model to simulate the transient dynamics of a car's hood door during an accident, with reinforced structure in the axial direction using graphene nanoplatelets. The results are verified through comparison with open-source results and deep neural networks. The study highlights the importance of graphene nanoplatelets in the composite system's transient and forced vibrations, and provides valuable suggestions for future structural designs.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Rostyslav Nizinkovskyi, Thorsten Halle, Manja Krueger
Summary: Cu-precipitation in reactor pressure vessel steels is a major concern for the degradation of mechanical properties. This study develops and implements a non-local phase-field model to investigate the equilibrium morphology of precipitates in the over-aged state. The model confirms that the precipitates should have an oblate lath-like shape, which is supported by experimental data. The orientation of the precipitates is consistent with literature. The mechanism of morphology accommodation is explained using the invariant-line method. However, the equilibrium values of elongation significantly deviate from experimental data, likely due to the metastable state of the precipitates during the coarsening process.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xiaowei Li, Yafei Liu, Shiyu Luan, Deqing Ma, Xiaoyu Liu, Qiangbing Liu, Jinhui Wang
Summary: In this study, the hot deformation behavior of as-cast Mg-2Ho binary alloy under different strain rates and deformation temperatures was systematically studied. The microstructure and dynamic recrystallization mechanisms were analyzed using SEM and EBSD techniques. A strain-compensated Arrhenius constitutive equation and a PSO-BP ANN model based on machine learning were established to analyze the flow behavior. The experimental results showed that the flow stress decreased with increasing temperature and decreasing strain rate. The PSO-BP ANN model demonstrated good accuracy in predicting flow stress.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Jiaxin Liu, Guangkai Liao, Zhenyan Xie, Bowen Li, Lingna Cui, Yuejun Liu
Summary: This study investigated the rheological behavior of polyamide 6 (PA6) film during biaxial stretching and found that the elastic-plastic deformation during stretching affected the stress rebound or relaxation during heat setting. The relaxation spectrum and activation energy spectrum were calculated, revealing the process of stress relaxation as energy release and stress rebound as energy absorption. The results provide theoretical guidance for understanding the biaxial stretching deformation mechanism of polymer films.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Monisha Manathanath, Benu George, Juraij Kandiyil, Subramaniam Sujatha, Suchithra Tharamel Vasu, Sujith Athiyanathil, Unnikrishnan Gopalakrishna Panicker
Summary: This study explores a method that combines a biodegradable polymer scaffold with a photosensitizer for antibacterial photodynamic therapy. The results show a high inhibition rate against E. coli and S. aureus using this method.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Mohammad Hemmat Esfe, S. Ali Eftekhari, S. Mohammad Sajadi, Mohammad Hashemian, Soheil Salahshour, Seyed Majid Motallebi
Summary: In this study, an artificial neural network was used to predict the dynamic viscosity of MWCNT-ZnO (25:75)/SAE 10W40 oil nano-lubricant. The temperature, shear rate, and solid volume fraction were found to have significant effects on the dynamic viscosity, with shear rate being the most influential parameter.
MATERIALS TODAY COMMUNICATIONS
(2024)
