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中国化学工程学报:英文版 2023年第8期60卷 253-261页

作者： Sinu Poolachira Sivasubramanian Velmurugan Department of Chemical Engineering National Institute of Technology CalicutCalicut 673601India

In the present study, polyethersulfone based nanohybrid membranes were effectively fabricated by incorporating graphene oxide(GO) and hydrotalcite(HT) nanosheets into the membrane structure. HT was prepared to overcome the irreversible agglomeration behavior of GO at a high concentration which affects the performance of the membranes. In particular, the shedding of HT in formamide provides a two-dimensional nanosheet with a higher positive charge density to prevent the restacking of GO nanosheets. Here, exfoliated GO and HT with different combinations(1:1, 1:2 and 1:3) were infused in the membrane matrix to treat lead-acid battery effluent effectively. Finally, the hybrid membranes were characterized for hydrophilicity, mechanical strength and pure water flux. In combination with the superior properties of GO and HT, the prepared hybrid membranes can be used as effectively to improve the separation and permeation performance. The phase inversion process eliminated the leaching of nanoparticles from the membrane matrix. The reusability of the hybrid membrane was achieved using0.1 mol·L^(-1)NaOH solution and reused without significant reduction in lead removal efficiency. The cost analysis of the membrane was also estimated from the lab study. Therefore, the present study suggested the selective and sustainable treatment of lead from a real-life effluent.

关键词： Nanohybrid membrane polyethersulfone Graphene oxide Hydrotalcite Lead battery effluent Reusability Cost analysis

PREPARATION OF polyethersulfone ULTRAFILTRATION MEMBRANES FOR MILK CONCENTRATION AND EFFECTS OF ADDITIVES ON THEIR MORPHOLOGY AND PERFORMANCE

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Chinese Journal of Polymer Science 2005年第5期23卷 539-548页

作者： S.S.Madaeni A.Rahimpour Department Of Chemical Engineering Razi University KermanshahIran

polyethersulfone membranes were prepared from quaternary systems containing N,N-dimethylacetamide （DMAc） as solvent, polyvinylpyrrolidone （PVP） as constant additive and acetic acid, acetone and water as variable additives. Phase inversion via immersion precipitation was employed for manufacturing of membranes. The prepared films were immersed in the mixture of pure water and 2-propanol （30/70 vol%） as the non-solvent. Acetic acid caused an increment in the flux at high polymer concentration （16 wt%） and a decline in the flux at low polymer concentrations （10 wt% and 13 wt%）. Acetone and water as the solvent in the casting solution declined the flux at any polymer concentration tested. The morphology and performance of the prepared membranes were investigated by scanning electron microscopy and separation experiments using milk as the feed.

关键词： Membrane Ultrafiltartion polyethersulfone Phase inversion Milk.

Permeation properties of CO2 and CH4 in asymmetric polyethersulfone/ polyesterurethane and polyethersulfone/polyetherurethane blend membranes

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Chinese Journal of Chemical Engineering 2017年第12期25卷 1750-1759页

作者： Shadi Hasanajili Masoud Latifzadeh Mahmoud Bahmani Chemical and Petroleum Engineering School Shiraz University 71248-51154 Shiraz lran

The transport performances of carbon dioxide and methane were studied in polyethersulfone, polyethersulfone/polyeterurethane(PES–ETPU) and polyethersulfone/polyestherurethane(PES–ESPU) blend membranes separately with different compositions. The variations in the structural characteristics of PES membrane after incorporation of ESPU and ETPU were investigated by different techniques. Additionally, the effect of pressure and composition on the permeance of CO_2, CH_4 and ideal selectivity of CO_2/CH_4 were checked on the *** results revealed that the morphology of the blend membranes was affected by two opposite factors: thermodynamic enhancement and kinetic hindrance. The membranes with denser sponge layers were formed at lower ratio of PU/PES, while more porous structure with enlarged macrovoids membranes were observed at higher PU content. The results indicated that adding PU to PES membrane, caused permeance improvement of the gases with nearly no change and/or reduction in ideal selectivity of CO_2/CH_4. Moreover, PES–ETPU membranes showed higher permeability and less CO_2/CH_4 selectivity in comparison with PES–ESPU samples. For PES–ESPU membrane containing 1.5% ESPU, CO_2 permeance at 10 bar was improved up to 20% with almost no change in CO_2/CH_4 selectivity with respect to PES. Finally, response surface methodology was used to evaluate the effects of the operating parameters on the permeance and ideal selectivity.

关键词：吸收膜缩放分发 RSM polyethersulfone 聚氨酯

Morphology and Compatibility of Compatibilized polyethersulfone and Polycarbonate Blends

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Chemical Research in Chinese Universities 2005年第5期21卷 611-614页

作者： SUN Xiao-bo JIANG Dong WU Wei-chun JIANG Zhen-hua Research Center for Super Engineering Plastics of Ministry of Education College of Chemistry Jilin University Changchun 130021 P. R. China

A PES-PC （polyethersulfone-polycarbonate） multi block random copolymer was synthesized with two oligomers, polyethersulfone and polycarbonate. The effects of the copolymer, as a compatibilizer, on the morphology and compatibility of the PES-PC blends were investigated. It was found that the addition of this copolymer to the PES-PC blends could improve their compatibility.

关键词： polyethersulfone Polycarbonate Blend Compatibilizer

Structure Change of polyethersulfone Hollow Fiber Membrane Modified with Pluronic F127, Polyvinylpyrrolidone, and Tetronic 1307

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Materials Sciences and Applications 2012年第2期3卷 72-77页

作者： Nasrul Arahman Bastian Arifin Sri Mulyati Yoshikage Ohmukai Hideto Matsuyama 不详

Hydrophilic polyethersulfone (PES) hollow fiber membranes were prepared via non-solvent induced phase separation (NIPS) by addition of polymeric additives as a membrane modifying agent. The effect of the addition of hydrophilic surfactant Pluronic F127, Polyivinylpyrrolidone (PVP), and Tetronic 1307 on the performance of the final PES hollow-fiber membrane was investigated. The morphology of fabricated hollow fiber membrane observed by scanning electron microscopy (SEM) indicated that all of membrane had a skin layer on the surface and finger like macrovoid structure inside the hollow fiber. The addition of 5 wt% polymeric surfactant on the polymer solution results in membrane with improved length and number of macrovoid structure. Sponge formation both near inner surface and near outer surface of hollow fiber membrane was another impact of addition of polymeric additives, which is led to decrease of water permeability of these membrane. Water contact angle measurement was performed to investigate the hydrophilicity property of resulted membrane. It is confirmed that the modified PES hollow fiber membranes had lower water contact angle than that of the original membrane, which indicate that the modified PES membrane with additives has high hydrophilic.

关键词： Membrane Preparation polyethersulfone Tetronic 1307 Pluronic F127 Polyivinylpyrrolidone

Synergetic Improvement of Interlaminar Fracture Toughness in Carbon Fiber/Epoxy Composites Interleaved with PES/PEK‑C Hybrid Nanofiber Veils

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Advanced Fiber Materials 2022年第5期4卷 1081-1093页

作者： Jinli Zhou Chenyu Zhang Chao Cheng Ming Wang Zhihui Yang Yanfei Yang Hongying Yang Muhuo Yu Zhongyuan University of Technology Zhengzhou 450000China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Donghua UniversityShanghai 201620China Shanghai University of Engineering Science Shanghai 201620China Henan University of Engineering Zhengzhou 450000China

In this study,two types of soluble thermoplastic resins were added to epoxy resin at a fixed weight ratio to prepare a three-phase cast *** cast was then manufactured into hybrid nanofiber as interleaves for interlaminar toughening of carbon fiber/epoxy resin(CF/EP)composites using a co-solvent *** results revealed that when the hybrid components reached 15 wt%,polyethersulfone(PES)and polyaryletherketone cardo(PEK-C)exhibited the best synergistic toughening effect,and the fracture toughness increased by 99.8%and 39.8%,respectively,compared with the reference or the same proportion of the single PES toughened *** used PES/PEK-C hybrid nanofibers with an areal density of 19.2 g per square meter(gsm)as composite toughening *** from the lack of significant influence of PES nanofiber on CF/EP composites,the interlaminar fracture toughness of mode I and mode II layers increased by 88.3%and 46.9%,respectively,compared to the reference *** Electron Microscopy of the fracture surface and cross-section micromorphology of the laminate displayed that the thermoplastic microspheres of different sizes contribute differently to crack resistance:PEK-C consumes more energy due to the debonding and extraction of microspheres and resin,whereas the presence of the PES phase can induce more plastic deformation and crack deflection.

关键词： Carbon fiber/epoxy resin polyethersulfone Polyaryletherketone cardo Interlaminar fracture toughness Nanofiber

磺化聚醚砜提高聚醚砜膜亲水性和血液相容性研究(英文)

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Chinese Journal of Chemical Engineering 2009年第2期17卷 324-329页

作者：王海涛杨刘赵学辉于湉杜启云 The Key Lab of Hollow Fiber Membrane Materials and Membrane Process of Ministry of Education Tianjin Polytechnic University Department of Bio-medical Engineering Tianjin Polytechnic University

polyethersulfone(PES) is widely used as biomaterials due to its thermal stability,mechanical strength,and chemical ***,their blood compatibility is still not adequate for hemodialysis and blood *** this study,the sulfonated polyethersulfone(SPES) was synthesized through an electrophilic substitution reaction,and PES/SPES blending membranes were *** characterization of the SPES was studied by *** water adsorption and water contact angle experiments show that the hydrophilicity of PES/SPES blend membrane was improved as for the sulfonate group existing in the ***,PES/SPES blend membrane could effectively reduce bovine serum albumin adsorption and prolong the blood coagulation time compared with the PES membrane,thereby improving blood compatibility.

关键词： sulfonated polyethersulfone polyethersulfone hydrophilicity blood compatibility blending

Modification of PES/PU membrane by supercritical CO2 to enhance CO2/CH4 selectivity:Fabrication and correlation approach using RSM

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Chinese Journal of Chemical Engineering 2018年第12期26卷 2503-2515页

作者： Misagh Ahmadi Sara Masoumi Shadi Hassanajili Feridun Esmaeilzadeh Chemical and Petroleum Engineefing School Shiraz University71348-51154 ShirazIran

Integrally skinned asymmetric gas separation membranes of polyethersulfone(PES)/polyurethane(PU) blend were prepared using supercritical CO_2(SC-CO_2) as a nonsolvent for the polymer solution. The membrane consisted of a dense and a porous layer, which were conjoined to separate CO_2 from CH_4. The FTIR, DSC, tensile and SEM tests were performed to study and characterize the membranes. The results revealed that an increase in SC-CO_2 temperature causes an increment in permeance and a decrease in membrane selectivity. Furthermore,by raising the pressure, both permeance and selectivity increased. The modified membrane with SC-CO_2 had much higher selectivity, about 5.5 times superior to the non-modified membrane. This higher selectivity performance compared to previous works was obtained by taking the advantages of both using partial miscible blend polymer due to the strong polar–polar interaction between PU PES and SC-CO_2 to fabricate the membrane. The response surface methodology(RSM) was applied to find the relationships between several explanatory variables and CO_2 and CH_4 permeance and CO_2/CH_4 selectivity as responses. Finally, the results were validated with the experimental data, which the model results were in good agreement with the available experimental data.

关键词： polyethersulfone Polyurethane Membrane Supercritical CO2 RSM Gas separation

Effects of Functionalized Silica Nanoparticles on Characteristics of Nanocomposites PES Cation Exchange Membranes

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Journal of Wuhan University of Technology(Materials Science) 2017年第6期32卷 1239-1249页

作者： GARMSIRI Mahdi MORTAHEB Hamid Reza MOGHADASI Mahdieh Chemistry and Chemical Engineering Research Center of lran Tehran P.O.Box: 14335-186 Iran

Nanocomposite cation exchange membranes（CEMs） were prepared by adding various loadings of functionalized silica nanoparticles to the sulfonated polyethersulfone（s PES） polymeric matrix. The silica nanoparticles were functionalized by mercaptopropyl（F1, IEC=0）, propylsulfonic acid（F2, IEC= 2.71）, and sulfonic acid（F3, IEC=2.84）. The properties of prepared membranes were investigated by varying the loadings of functionalized silica nanoparticles. Applying functionalized nanoparticles provides additional ion exchange groups and enhances water contents as well as conductivities and permselectivities of the membranes. The maximum IEC of 1.9 meq.g^-1 was obtained for the membrane having 3 wt% F3 nanoparticles and the maximum conductivity of 0.237 S·cm^-1 was achieved for the membrane having 2 wt% F3 nanoparticles, which were 19.6% and 64% higher than the corresponding values for s PES membrane, respectively. The excellent properties of the nanocomposite cation-exchange membranes make them appropriate candidates for electrodialysis and desalination processes.

关键词： functionalized silica nanocomposite membrane cationic exchange membrane polyethersulfone transport properties

BSA Hybrid Synthesized Polymer

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Chinese Chemical Letters 2006年第11期17卷 1519-1522页

作者： Zong Bin LIU Xiao Pei DEN Chang Sheng ZHAO College of Polymer Science and Engineering Sichuan University Chengdu 610065

Bovine serum albumin （BSA）, a naturally occurring biopolymer, was regarded as a polymeric material to graft to an acrylic acid （AA）-N-vinyl pyrrolidone （NVP） copolymer to form a biomacromolecular hybrid polymer. The hybrid polymer can be blended with polyethersulfone （PES） to increase the hydrophilicity of the PES membrane, which suggested that the hybrid polymer might have a wide application in the modification of biomaterials.

关键词： Bovine serum albumin acrylic acid N-vinyl-pyrrolidone polyethersulfone blending.