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De la physico-chimie des polymères aux membranes pour la séparation des gaz / Pluton Pullumbi in L'ACTUALITE CHIMIQUE, N° 424 (12/2017)
[article]
Titre : De la physico-chimie des polymères aux membranes pour la séparation des gaz Type de document : texte imprimé Auteurs : Pluton Pullumbi, Auteur Année de publication : 2017 Article en page(s) : p. 19-20 Note générale : Bibliogr. Langues : Français (fre) Catégories : Gaz -- Séparation
Membranes (technologie)
PolymèresIndex. décimale : 668.9 Polymères Note de contenu : - Figure : Schéma de fabrication de la membrane fibre creuse par la co-extrusion/coagulation d’un solvant de coagulation dans la partie centrale et deux solutions de polymères au travers d’une filière annulaire. En ligne : http://www.lactualitechimique.org/Pierre-Gilles-de-Gennes-et-l-innovation Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29529
in L'ACTUALITE CHIMIQUE > N° 424 (12/2017) . - p. 19-20[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19406 - Périodique Bibliothèque principale Documentaires Disponible Preparation and anti-fouling property of acryloylmorpholine-grafted PVDF membrane : the effect of cross-linking agent / Xueye Shen in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 2 (05/2016)
[article]
Titre : Preparation and anti-fouling property of acryloylmorpholine-grafted PVDF membrane : the effect of cross-linking agent Type de document : texte imprimé Auteurs : Xueye Shen, Auteur ; J. Liu, Auteur ; Y. Zhao, Auteur ; L. Chen, Auteur Année de publication : 2016 Article en page(s) : p. 207-216 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adsorption
Angle de contact
Copolymères -- Synthèse
Copolymères greffés
Membranes (technologie)
Perméation
Polyacryloylmorpholine
Polyfluorure de vinylidène
ProtéinesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Inspired by the hydration capability of hydrogel materials, cross-linked poly(N-acryloylmorpholine) (PACMO) chains were designed into poly(vinylidene fluoride) (PVDF) backbones to synthesize the copolymers (PVDF-g-PACMO) using the radical polymerization method. These copolymers were then cast into the porous membranes via immersion phase inversion. The effects of N,N?-methylenebisacrylamide (MBAA) in the reaction solution on the structure and performance of as-prepared copolymer membranes were evaluated by elemental analysis, X-ray photoelectronic spectroscopy, field emission scanning electron microscopy, water contact angle measurement, protein adsorption and filtration experiment. The grafting degree of PACMO increases with the increase of MBAA amount in the reaction solution, which endows the copolymer membrane with a good hydrophilicity. The protein adsorption and irreversible membrane fouling decrease and then further increase with the elevated grafting degree of PACMO. This result indicates that the anti-fouling property of membrane not only depends on the surface hydrophilicity and but also associates with the grafting structures of PACMO. This work provides a fundamental understanding of various grafting structures governing the performance of anti-fouling properties. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of PVDF-g-PACMO copolymer - Preparation of PVDF-g-PACMO copolymer membrane - Membrane characterizations - Protein adsorption - Filtration experiments
- RESULTS AND DISCUSSIONS : Chemical structure of PVDF-g-PACMO membrane - Morphology of PVDF-g-PACMO membrane - Hydrophilicity of PVDF-g-PACMO membrane - Protein adsorption - Permeation performance of PVDF-g-PACMODOI : 10.3139/217.3150 En ligne : https://drive.google.com/file/d/12AXTiFWlhjB5Ks5rKSxDZOzcwVulLimE/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26178
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXI, N° 2 (05/2016) . - p. 207-216[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17979 - Périodique Bibliothèque principale Documentaires Disponible Preparation and characterization of carbon black coated membranes for the treatment of saline water by membrane distillation / Mohamed E. A. Ali in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 4 (07/2023)
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Titre : Preparation and characterization of carbon black coated membranes for the treatment of saline water by membrane distillation Type de document : texte imprimé Auteurs : Mohamed E. A. Ali, Auteur ; Shimaa Elbakry, Auteur ; Moustafa Aboelfadl, Auteur ; Hosam Shawky, Auteur ; Qilin Li, Auteur ; Francois Perreault, Auteur Année de publication : 2023 Article en page(s) : p. 1477-1488 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact
Caractérisation
Distillation
Eau de mer -- Dessalement
Membranes (technologie)
Morphologie (matériaux)
Noir de carbone
Polyfluorure de vinylidène
Polytétrafluoréthylène
Traîtements de surfaceIndex. décimale : 667.9 Revêtements et enduits Résumé : Membrane distillation (MD) is a promising approach to address water scarcity due to its capacity to achieve high water recovery in desalination. However, high energy consumption and decline in permeate flux are key issues of MD desalination. Nanophotonic materials like carbon black (CB) have been used to improve MD performance and reduce energy consumption in the presence of sunlight. In this article, we investigated different coating procedures for the formation of a uniform layer of CB particles on polytetrafluoroethylene (PTFE) and polyvinylidene fluoride membranes. The coated membranes were manufactured and characterized using Fourier-transform infrared spectroscopy and scanning electron microscopy. Contact angle measurements demonstrated an increase in hydrophilicity after CB was added. Both types of membranes exhibited an increase in permeate flux and salt rejection with the addition of CB, with the PTFE membrane coated with 0.5% of CB having the highest water flux, reaching 14.6 L/m2 h (LMH) compared to a commercial control having a flux of 8.0 LMH. The effects of different parameters on the performance of the hydrophilic CB-coated PTFE membrane were examined. The results demonstrated that the CB coating developed can be advantageous to improve the performance of MD membranes. Note de contenu : - EXPERIMENTAL :
- Materials
- Preparation of CB coating layer on PTFE or PVDF membranes
- Material characterization
- Evaluation of MD membrane performance
- RESULTS AND DISCUSSION :
- FTIR analysis
- Membrane morphology
- Contact angle measurements
- Performance of MD membrane
- Table 1 : An overview of other MD membranes modified with similar coating materials
- Table 2 : Total organic carbon (TOC) release from CB NPs coated the membranes of PTFE and PVDFDOI : https://doi.org/10.1007/s11998-022-00759-6 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00759-6.pdf?pdf=button% [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39730
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 4 (07/2023) . - p. 1477-1488[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24153 - Périodique Bibliothèque principale Documentaires Disponible Preparation and characterization of hydrophobic flat sheet membranes based on a recycled polymer / H. Ajari in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIV, N° 3 (07/2019)
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Titre : Preparation and characterization of hydrophobic flat sheet membranes based on a recycled polymer Type de document : texte imprimé Auteurs : H. Ajari, Auteur ; Adel Zrelli, Auteur ; B. Chaouachi, Auteur ; M. Pontié, Auteur Année de publication : 2019 Article en page(s) : p. 376-382 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Angle de contact
Caractérisation
Eau
Hydrophobie
Membranes (technologie)
Perméation
Polyéthylène basse densité
Produits et matériaux recyclés
RugositéIndex. décimale : 668.4 Plastiques, vinyles Résumé : In this work, we used a recycled low-density polyethylene (LDPE) in order to prepare flat sheet membranes with different polymer concentrations (5 and 10%). The used chemical method for the membrane's preparation is the phase inversion. After obtaining the membranes, we characterized them by atomic force microscopy (AFM) and scanning electron microscopy (SEM) to study their structure and surface characteristics. Based on the SEM images, our membranes have a dense skin layer. In addition, we observed a decrease in the porosity with the increase in the polymer concentration. When the polymer concentration increases from 5 to 10% the porosity decreases from 35.54% to 20.28%. Furthermore, we remarked significant changes in the contact angle and the surface roughness with the increase of the polymer concentration. The roughness increases from 363 to 577 nm for the same evolution of the polymer concentration. These high values of roughness imply obtaining values of contact angles greater than 90° and hydrophobic membranes, which is beneficial for the membrane distillation. Furthermore, the use of our membranes in vacuum membrane distillation (VMD) experiments showed a permeate flux up to 1.503 kg/hm2; for the membrane with 35.54% of porosity and 5% of polymer concentration. Note de contenu : - EXPERIMENTAL STUDY : Materials - Membrane preparation - Characterization of flat sheet membranes
- RESULTS AND DISCUSSION : Membrane structure - Membrane roughness and contact angle - Water permeationDOI : https://doi.org/10.3139/217.3717 En ligne : https://drive.google.com/file/d/1d5SBJDQmHbOOBVJ_sKCwqCskU4rSx4CL/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32899
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXIV, N° 3 (07/2019) . - p. 376-382[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21036 - Périodique Bibliothèque principale Documentaires Disponible Preparation and characterization of PES and PA composite membranes for air separation at low pressures / Sayed S. Madaeni in INTERNATIONAL POLYMER PROCESSING, Vol. XXVIII, N° 3 (07/2013)
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Titre : Preparation and characterization of PES and PA composite membranes for air separation at low pressures Type de document : texte imprimé Auteurs : Sayed S. Madaeni, Auteur ; M. Esmaeili, Auteur ; S. Attar Nosrati, Auteur ; J. Barzin, Auteur Année de publication : 2013 Article en page(s) : p. 281-290 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Basse pression
Caractérisation
Gaz -- Séparation
Membranes (technologie)
PolyamidesUn polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine.
Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères.
PolyéthersulfonesIndex. décimale : 668.9 Polymères Résumé : In this study poly(ether sulphone) (PES) asymmetric membranes and Polyamide (PA) composite membranes were used for gas separation at low pressures. The effect of PES concentration, contact time of sebacoyldichloride, addition of 1,6-hexaethylene diamine solution and PA active layer on the structures of PES support layer were studied. Changing the structure of PES membrane from channel-like to sponge form increased the selectivity in the gas separation process. However, this structural variation caused a considerable decline in gas permeability. The characteristics of top layer depend on the porosity and compactness of sub-layers structure. Active layer formation on the surface of support structure at PES concentrations of more than 25 %wt improved the oxygen selectivity considerably. The optimum conditions for preparation of PA active layer through interfacial polymerization process were elucidated in this paper. The PA composite membrane prepared at the PES concentration of 25 wt% and monomer concentration of 1 wt% provided the highest selectivity for oxygen enrichment process. Note de contenu : - EXPERIMENTAL : Materials - Fabrication of PES support membranes - Synthesis of composites membranes - Characterization methods - Gas permeation system
- RESULTS AND DISCUSSION : Effect of PES concentration on the performance of composites membranesDOI : 10.3139/217.2728 En ligne : https://drive.google.com/file/d/1V46vi799gO6JYKXUDwT8ncJOc4UiBa_F/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19017
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Code-barres Cote Support Localisation Section Disponibilité 15238 - Périodique Bibliothèque principale Documentaires Disponible Preparation and drug release properties of curcumin-loaded PVA-PAA nanofibers / Shi Jiayin in CHEMICAL FIBERS INTERNATIONAL, Vol. 72, N° 3 (09/2022)
PermalinkPreparation and performance evaluation of SPEEK/polyaniline composite membrane for direct methanol fuel cell / A. S. Sultan in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 1 (03/2017)
PermalinkPreparation and thermal crosslinking of PVA-PAA nanofibres membranes / Shi Jiayin in MAN-MADE FIBERS INTERNATIONAL, Vol. 73, N° 3 (2023)
PermalinkPreparation of carboxylated graphene oxide nanosheets/polysulphone hollow fibre separation membranes with improved separation and dye adsorption properties / Wenying Shi in COLORATION TECHNOLOGY, Vol. 135, N° 5 (10/2019)
PermalinkPreparation of hydrophilic modified ZIF-8 and its application in the preparation of nanocomposite matrix reverse osmosis membrane with improved permeation performance / Yuwen Lai in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 2 (03/2024)
PermalinkPreparation of superhydrophilic/underwater superoleophobic membranes for separating oil-in-water emulsion: mechanism, progress, and perspective / Xinya Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 2 (03/2021)
PermalinkPreparation of the hydrophilic coating layer on polypropylene microporous membrane surface by dip-coating the hydrophilic agent / Aiai Li in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 6 (11/2022)
PermalinkPreparation of TPU electrospun fibrous / Rao Lixian in CHEMICAL FIBERS INTERNATIONAL, Vol. 69, N° 4 (12/2019)
PermalinkPU nanofibrous membrane with gradient laminated structure for efficient sound absorption / Yuepeng Xu in MAN-MADE FIBERS INTERNATIONAL, Vol. 74, N° 1 (2024)
PermalinkRecyclage. Les promesses des membranes / Benoît Crépin in INDUSTRIE & TECHNOLOGIES, N° 1013 (10/2018)
PermalinkReducing chemical consumption and waste water COD loadings by recycling in conjunction with membrane filtration / K. Hellinger in WORLD LEATHER, Vol. 14, N° 7 (11/2001)
PermalinkRemoval of acid black 210 dye from leather dyeing effluent using spherical particles of P(HEMA-GMA)-IDA-Cr(III) hydrogel membrane / Safiye Meric Acikel in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 3 (05-06/2017)
PermalinkRemoval of synthetic organic foulants by granular activated carbon filters and ultrafiltration membrane / Muhammad Zahoo in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 49, N° 5 (09-10/2012)
PermalinkResearch recap of membrane technology for tannery wastewater treatment : a review / Fu Yang in COLLAGEN AND LEATHER, Vol. 5 (2023)
PermalinkReuse of textile wastewater treated by moving bed biofilm reactor coupled with membrane bioreactor / Xuefei Yang in COLORATION TECHNOLOGY, Vol. 137, N° 5 (10/2021)
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