Accueil
Catégories
> Acide polyacrylique
Acide polyacryliqueVoir aussi
|
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
Preparation and thermal crosslinking of PVA-PAA nanofibres membranes / Shi Jiayin in MAN-MADE FIBERS INTERNATIONAL, Vol. 73, N° 3 (2023)
[article]
Titre : Preparation and thermal crosslinking of PVA-PAA nanofibres membranes Type de document : texte imprimé Auteurs : Shi Jiayin, Auteur ; Wang Ruihua, Auteur ; Xin Yu, Auteur ; Gao Jing, Auteur ; Wang Lu, Auteur Année de publication : 2023 Article en page(s) : p. 31-33 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acide polyacrylique
Electrofilature
Membranes (technologie)
Nanofibres
Polyacétate de vinyle
Réticulation (polymérisation)Index. décimale : 677.4 Textiles artificiels Résumé : Nanofibers of polyvinyl alcohol (PVA) and polyacrylic acid (PAA) were fabricated through electrospinning process. Procedure parameters in the electrospinning significantly affected the morphology of PVA/PAA nanofibers. Spinning voltage, receiving distance and flow rate were investigated respectively to prepare fine nanofibers and have high production efficiency. The water resistance of PVA/PAA nanofibers was further improved by thermal crosslinking. En ligne : https://drive.google.com/file/d/1gt0j0-ghGGFFB4MOhNv-oEya7VZ9qts6/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39862
in MAN-MADE FIBERS INTERNATIONAL > Vol. 73, N° 3 (2023) . - p. 31-33[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 24191 - Périodique Bibliothèque principale Documentaires Disponible Preparation of metal chelating active packaging materials by laminated photografting / Zhuangsheng Lin in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 2 (03/2016)
[article]
Titre : Preparation of metal chelating active packaging materials by laminated photografting Type de document : texte imprimé Auteurs : Zhuangsheng Lin, Auteur ; Eric A. Decker, Auteur ; Julie M. Goddard, Auteur Année de publication : 2016 Article en page(s) : p. 395-404 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acide polyacrylique
Chélates
Copolymères greffés
Emballages en matières plastiques
Fer
Matériaux -- Propriétés barrières
polyacide hydroxamique
Polypropylène
Traîtements de surfaceIndex. décimale : 667.9 Revêtements et enduits Résumé : Active packaging materials with surface immobilized metal chelating ligands were prepared by laminated photografting technique. The resulting materials presented transition metal scavenging properties with potential application in non-migratory antioxidant active packaging materials. Photografting of functional polymer ligands is typically performed in an oxygen-free environment, requiring a nitrogen inerting step, which limits potential industrial scale-up. Laminated photografting eliminates the need for nitrogen inerting by sandwiching the monomer solution between base material and an oxygen barrier layer. In this study, we demonstrated the ability to synthesize metal chelating active packaging materials, previously prepared by standard batch photografting, using a laminated photografting technique. The polypropylene-graft-poly(acrylic acid) and polypropylene-graft-poly(hydroxamic acid) chelating films prepared by laminated photografting presented similar surface chemistry as those reported previously, as characterized by infrared spectroscopy, and presented ferric ion chelating capacity of 182 ± 29 and 89 ± 10 nmol/cm2, respectively, at pH 5.0. The reported laminated photografting represents a coating technology with potential for adaptation to roll-to-roll manufacture of metal chelating films on an industrial scale. Note de contenu : - EXPERIMENTAL METHODS AND MATERIALS : Materials - Surface modification - Surface characterization - Iron chelating capacity - Statistics
- RESULTS AND DISCUSSION : Surface characterization - Iron chelating capacityDOI : 10.1007/s11998-015-9767-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9767-z.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26123
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 2 (03/2016) . - p. 395-404[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 17962 - Périodique Bibliothèque principale Documentaires Disponible Recovery of chromium(III) ions from aqueous solution by carboxylate functionalized wood fibres / Yin Zhonglong in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 99, N° 3 (05-06/2015)
[article]
Titre : Recovery of chromium(III) ions from aqueous solution by carboxylate functionalized wood fibres Type de document : texte imprimé Auteurs : Yin Zhonglong, Auteur ; Chen Baihua, Auteur ; Chen Min, Auteur ; Hu Sheng, Auteur ; Cheng Haiming, Auteur Année de publication : 2015 Article en page(s) : p. 101-106 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acide polyacrylique
Adsorption
Carboxylate
Chrome trivalent
Eaux usées -- Recyclage
Greffage (chimie)
Laine
Récupération (Déchets, etc.)
Solutions aqueuses (chimie)Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The application of wool fibres for recovery of heavy metal ions is equivalent to the use of one waste to clean-up of another. A carboxylate functionalized wool fibre (PAA-g-Wool) was prepared by grafting poly(acrylic acid) onto the surface of wool fibre in the presence of potassium permanganate and oxalic acid as a redox initiator system. The graft percentage was 80.2%. The PAA-g-Wool adsorbent was applied to absorb chromium(III) from aqueous solutions in a batchwise manner. The optimum pH for recovery of chromium(III) by PAA-g-Wool was found to be 6.0. Kinetic studies show that the sorption process agrees with the pseudo-second-order kinetic model, with the correlation coefficient (R2) more than 0.99. The adsorption equilibrium of chromium(III) was well defined by the Langmuir isotherm equation, and the adsorption capacity was found to be 95.78mg/g calculated by the Langmuir isotherm equation. After recycling for 5 times, the adsorption capacity of PAA-g-Wool to chromium ions was still maintained at 90%. The PAA-g-Wool could recover 97.1% of chromium(III) ions in the tannery wastewater. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Preparation of PAA-g-wool fibres - FTIR analysis - SEM analysis - Batch adsorption experiments - Effect of initial pH - Effect of contact time - Effect of initial concentration of chromium (III) - Desorption and recycling experiments - Treatment of tannery wastewater
- RESULTS AND DISCUSSION : Preparation and characterization of PAA-g-wool - Effect of pH - Adsorption kinetics - Adsorption isotherms - Recycling adsorption - Treatment of tannery wastewaterEn ligne : https://drive.google.com/file/d/14Bf5R3-VSJ7uyRn6R4GbQBB8Zk8r-r-s/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24252
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 99, N° 3 (05-06/2015) . - p. 101-106[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 17271 - Périodique Bibliothèque principale Documentaires Disponible Reloadable antimicrobial coatings based on amphiphilic silicone networks / J. C. Tiller in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 88, B1 (03/2005)
[article]
Titre : Reloadable antimicrobial coatings based on amphiphilic silicone networks Type de document : texte imprimé Auteurs : J. C. Tiller, Auteur ; J. Scherble, Auteur ; L. Hartmann, Auteur Année de publication : 2005 Article en page(s) : p. 49-53 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acide polyacrylique
Antimicrobiens
Poly(2-hydroxyethyl acrylate)
PolydiméthylsiloxaneLe polydiméthylsiloxane —[O-Si(CH3)2]n—, ou poly(diméthylsiloxane) selon la nomenclature systématique, communément appelé PDMS ou diméthicone, est un polymère organominéral de la famille des siloxanes souvent présent dans les shampoings. On l'y ajoute pour augmenter le volume des cheveux mais il peut également aller boucher les pores du cuir chevelu et rendre les cheveux gras. C'est une des raisons pour lesquelles se laver les cheveux tous les jours est très déconseillé avec un shampooing contenant des silicones.
Il existe également de l'amodiméthicone, qui est un dérivé du diméthicone.
Le polydiméthylsiloxane est un additif alimentaire (E900), utilisé comme antimoussant dans les boissons (Coca-Cola BlāK).
La chaîne de poly(diméthylsiloxane) forme également la structure de base des huiles et des caoutchoucs silicones.
Polymères amphiphiles
Revêtements organiques
Système de libération contrôlée (technologie)Index. décimale : 667.9 Revêtements et enduits Résumé : Amphiphilic networks composed of polydimethylsiloxane (PDMS), poly(2-hydroxyethylacrylate) (PHEA), and poly(acrylic acid) (PAA) have been prepared as thin covalently surface-attached coatings via a protecting group strategy. Atomic force microscopy (AFM) images revealed that both the hydrophobic PDMS phase as well as the hydrophilic PHEA and PAA phase, respectively, are present at the surface and show nanophase separation. The coatings were loaded with Rhodamine B (RB) as a model compound for release experiments. The dye is quickly released from the pure PHEA-I-PDMS coatings of all the compositions. In contrast, the release of RB from the PAA-I-PDMS is greatly delayed over weeks. First experiments with PHEA-I-PDMS coatings loaded with the disinfectant cetyltrimethylammonium chloride showed that the antimicrobial activity against the bacteriumStaphylococcus aureus was retained after washing. DOI : 10.1007/BF02699707 En ligne : https://link.springer.com/content/pdf/10.1007/BF02699707.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5436
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 88, B1 (03/2005) . - p. 49-53[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 000389 - Périodique Bibliothèque principale Documentaires Disponible Retanning mechanism of polyacrylic acid from the point of fibre motion / Zou Xianglong in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 103, N° 6 (11-12/2019)
[article]
Titre : Retanning mechanism of polyacrylic acid from the point of fibre motion Type de document : texte imprimé Auteurs : Zou Xianglong, Auteur ; Fang Qi, Auteur ; Ren Bianli, Auteur ; Chai Yuye, Auteur ; Li Zhongyu, Auteur Année de publication : 2019 Article en page(s) : p. 311-313 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acide polyacrylique
Cuirs et peaux -- Analyse
Retannage
Tannage organiqueIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The retanning mechanism of PAA was studied from the point of fibre motion. The stress state of collagen fibres retanned with PAA was analysed and the structure of retanned leather was characterised by SEM and strain-stress analysis. The results show that PAA mainly interacts with collagen fibres by adhesive force (AF) between collagen fibres and capillary flow. As PAA dosage increases, AF increases and the collagen fibre's array becomes more disordered. Note de contenu : - Change of stress state of collagenfibres after being retanned with PAA
- Effect of PAA on the array of collagen fibresEn ligne : https://drive.google.com/file/d/1-Nkf0khxkAo_U7Bmaac-UvAgy90pavNl/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33208
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 103, N° 6 (11-12/2019) . - p. 311-313[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 21314 - Périodique Bibliothèque principale Documentaires Disponible Spray-assisted layer-by-layer assembly of decorated PEI/PAA films: morphological, growth and mechanical behavior / Eduardo Ortega in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 4 (07/2017)
PermalinkSwelling properties and environmental responsiveness of a superabsorbent composite microsphere based on starch-g-poly(acrylic acid)/organo-mordenite / P.-Q. Gao in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 2 (05/2017)
PermalinkSynthesis and mechanical properties of polyacrylic acid resin retanning agent / Zou Xianglong in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 3 (05-06/2014)
PermalinkVisualization and quantification of penetration/mass transfer of acrylic resin retanning agent in leather using fluorescent tracing technique / Yunhang Zeng in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 11 (11/2016)
Permalink