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Modification of collagen fibre and clean chrome tanning technology using low temperature plasma / Yang Jinwei in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 6 (11-12/2012)
[article]
Titre : Modification of collagen fibre and clean chrome tanning technology using low temperature plasma Type de document : texte imprimé Auteurs : Yang Jinwei, Auteur ; Li Bo, Auteur ; Gou Li, Auteur ; Ling Huijiao, Auteur ; Luo Mingliang, Auteur ; Li Lixin, Auteur Année de publication : 2012 Article en page(s) : p. 246-249 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Carbonylation
Carboxylation
Collagène
Oxygène
Tannage au chrome
Technique des plasmasIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Chrome is a serious pollutant in the environment due to its toxicity and the low utilization inchrome tanning. To study the effect of low temperature plasma (LTP) on the absorption of chrome in tanning process, oxygen plasma was used to modify pickled skin. Scanning electron microscopy (SEM) was used to observe the surface morphology changes of wet-blue leather due to LTP treatment. The analysis by X-ray photoelectron spectroscopy (XPS) showed that the oxygen content of the pickled skin and the chromium content of the tanned leather increased remarkably. White hide powder (collagen fibre mimic) was modified by LTP and it was shown that the amount of carboxyl and carbonyl groups on the fibre surface increased significantly. The increase in oxygen-containing groups such as carboxyl, carbonyl, thus increased the content of combined chrome. Therefore, LTP will provide a new exploratory method for high-exhaustion chrome tanning technology. As this is a new applcation opportunities are limited due to the lack of suitable industrial equipment which will need to be developed. The new application is allied to that described in 'Study of unhairing with LTP4 which was presented at the 7th Asian Conference of Leather Science and Technology. Note de contenu : - EXPERIMENTAL : Equipment - Experimental method - Characterization and performance test
- RESULTS AND DISCUSSION : The effect of LTP on wet-blue leather surface topography - The effect of LTP on chromium content combined with leather - The effect of LTP on white hide powder chermical groupsEn ligne : https://drive.google.com/file/d/1PcP-HxF7B1fTZRJsBERE67ye8J6dha71/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16804
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 6 (11-12/2012) . - p. 246-249[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14414 - Périodique Bibliothèque principale Documentaires Disponible Modified smart collagen biomaterials for pharmacy and adhesive applications / Ján Matyasovsky in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 10 (10/2016)
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Titre : Modified smart collagen biomaterials for pharmacy and adhesive applications Type de document : texte imprimé Auteurs : Ján Matyasovsky, Auteur ; Ján Sedliacik, Auteur ; Igor Novák, Auteur ; Peter Simon, Auteur ; Peter Jurkovic, Auteur ; Peter Duchovic, Auteur ; Angela Kleinová, Auteur Année de publication : 2016 Article en page(s) : p. 365-375 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Biomatériaux
Biopolymères
Collagène
Colles:Adhésifs
Comprimés
Préparations pharmaceutiques
Technique des plasmasIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Collagen has widespread use for preparation of cell cultures, dermal cosmetics, food and medicines, while achieving biocompatibility with the biological environment. Unmodified native collagen is relatively difficult to process for intended applications. This work presents potential application possibilities of modified collagen biopolymer for pharmacy and adhesive applications.
Firstly, the application possibilities of collagen in the system of controlled drug release were verified. Dissolution profile of the matrix Ambroxol hydrochloride and Venlafaxine confirmed potential of crosslinked and plasticized collagen as a pharmaceutical agent for the solid medicinal product. This product was prepared by direct compression with controlled drug release within the 8-11 hours with almost zero-order kinetics.
Secondly, low temperature plasma was applied to achieve the biocompatibility and to modify the film surface of the collagen type I. Collagen film was treated in two plasma environments ; low temperature plasma N2/H2 was used for grafting the amino groups and CO2 plasma ensured grafting the carboxyl groups. The surface functional groups of collagen were applied in further reactions (e.g., antimicrobial pretreatment with strong biocide properties). Functionalized collagen film provided stronger adhesion and compatibility. Prepared non-formaldehyde collagen thermoplastic adhesive was tested for the technical applications. The results have shown that the collagen adhesive bond gained high strength, flexibility and required strong gluing, e.g. books or wood veneered materials.Note de contenu : - EXPERIMENTAL : Materials and methods - Used drug and excipient : Ambroxol hydrochloride - Venlafaxine hydrochloride - Collagen BS - Collagen HS - Collagen K 12 - Ethylene vinyl acetate - Methocel - Measurement methods : Tablet pressing - Mechanical testing of tablets - Disintegration of tablets - Dissolution of tablets - Surface and adhesion properties of EVAc films with collagen - Plasma modification - ATR-FTIR spectroscopy measurements - Plywood preparation
- RESULTS AND DISCUSSION : Application of modified collagen in pharmacy - Non-crosslinked collagen hydrolysate as the tablet binder - Tests of controlled release of ambroxol from the tablet matrix - Surface and adhesion properties of the film sample with collagen - Surface and adhesion properties of collagen based thermoplastic hot-melt films - Determination of the bond quality of plywood boards with collagen filmsEn ligne : https://drive.google.com/file/d/1rpwqGlXtr2bK6lN5uetRB1sMM9yjke9u/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27022
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXI, N° 10 (10/2016) . - p. 365-375[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18365 - Périodique Bibliothèque principale Documentaires Disponible Molecular functionalization of polymer surfaces / Frank Förster in KUNSTSTOFFE INTERNATIONAL, Vol. 100, N° 10 (11/2010)
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Titre : Molecular functionalization of polymer surfaces Type de document : texte imprimé Auteurs : Frank Förster, Auteur Année de publication : 2010 Article en page(s) : p. 136-137 Langues : Anglais (eng) Catégories : Polyéthylène
Polyéthylène téréphtalate
Polymères -- Surfaces
Promoteurs d'adhésion
Surfaces (technologie)
Technique des plasmas
Traîtements de surfaceIndex. décimale : 668.4 Plastiques, vinyles Résumé : Atmospheric pressure plasma - Atmospheric Pressure Plasma is highly suitable for treating the surfaces of thermally sensitive polymers. This method can also process materials of any desired thickness. In a further application, plasma in a controlled gas atmosphere offers a replacement for wet-chemical adhesion promoters. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10204
in KUNSTSTOFFE INTERNATIONAL > Vol. 100, N° 10 (11/2010) . - p. 136-137[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012580 - Périodique Bibliothèque principale Documentaires Disponible More material combinations, lower costs / Frederik Mühlhoff in KUNSTSTOFFE INTERNATIONAL, Vol. 110, N° 1 (01/2020)
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Titre : More material combinations, lower costs : InMould-plasma streamlines the 2-component process and expands the material spectrum Type de document : texte imprimé Auteurs : Frederik Mühlhoff, Auteur ; Elmar Moritzer, Auteur ; Erhard Krampe, Auteur ; Birte Böhnke, Auteur Année de publication : 2020 Article en page(s) : p. 22-25 Langues : Anglais (eng) Catégories : Matières plastiques -- Moulage par injection multicomposant
Matières plastiques -- Surmoulage
Polypropylène
Résistance au pelage
Résistance au vieillissement
Surfaces (technologie)
Technique des plasmas
ThermoplastiquesUne matière thermoplastique désigne une matière qui se ramollit (parfois on observe une fusion franche) d'une façon répétée lorsqu'elle est chauffée au-dessus d'une certaine température, mais qui, au-dessous, redevient dure. Une telle matière conservera donc toujours de manière réversible sa thermoplasticité initiale. Cette qualité rend le matériau thermoplastique potentiellement recyclable (après broyage). Cela implique que la matière ramollie ne soit pas thermiquement dégradée et que les contraintes mécaniques de cisaillement introduites par un procédé de mise en forme ne modifient pas la structure moléculaire.Index. décimale : 668.4 Plastiques, vinyles Résumé : Increasing demands on component functionality and the need for efficient manufacturing processes are keeping multi-component injection molding squarely in the focus of plastics processing. Not all materials can be processed reliably in the desired combination. The new InMould-Plasma process, which is fully integrated into the injection molding process, facilitates more-efficient production and paves the way for completely new material combinations. Note de contenu : - New properties for surfaces
- InMould-plasma is protected against reactions with atmospheric oxygen
- Case study : Gasket for the bottom module of a laundry dryer
- Proof of aging resistance
- High-strength PP/TPU bond
- Application-specific loading of the test specimens
- Bond remains fully intact
- Figure : Demonstration mold for the production of a housing cover by the inMould plasma process
- Fig. 1 : Plasma - the fourth state of matter
- Fig. 2 : Structure of an openair plasma generator
- Fig. 3 : Schematic representation of the inMould plasma process. The process takes place within a closed mold cavity
- Fig. 4 : Two-comoponent overmolding tool with adapted plasma nozzle for the production of three hard/soft peel test specimens
- Fig. 5 : Conditioning of the 2-component specimens of different bending raditi. The outer fiber strain (εRF) is 0%, 0.8%, 1.3 % and 2 %
- Fig. 6 : Peel resistance for different periods of storage, without mechanical loading
- Fig. 7 : Peel resistance at varying degrees of outer fiber strain (εRF) after 28 days of storage. Storage under load does not reduce the peel strengthEn ligne : https://www.kunststoffe.de/en/journal/archive/article/10277924 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33833
in KUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 1 (01/2020) . - p. 22-25[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21510 - Périodique Bibliothèque principale Documentaires Disponible Natural dyeing of air plasma-treated wool fabric with Rubia tinctorum L. and prediction of dyeing properties using an artificial neural network / Can Eyupoglu in COLORATION TECHNOLOGY, Vol. 140, N° 1 (02/2024)
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Titre : Natural dyeing of air plasma-treated wool fabric with Rubia tinctorum L. and prediction of dyeing properties using an artificial neural network Type de document : texte imprimé Auteurs : Can Eyupoglu, Auteur ; Seyda Eyupoglu, Auteur ; Nigar Merdan, Auteur ; Zeynep Omerogullari Basyigit, Auteur Année de publication : 2024 Article en page(s) : p. 91-102 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse morphologique
Colorants végétaux
Colorimétrie
Extraction (chimie)
Laine
Résistance à l'abrasion
Résistance au lavage
Technique des plasmas
Teinture -- Fibres textiles
Traîtements de surfaceIndex. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, the ecological dyeing process of wool fabrics was investigated. Wool fabric samples were treated with atmospheric pressure plasma-jet and corona discharge plasma to modify the surface to make the process sustainable and greener. The samples were dyed with the aqueous extract procured from the powdered roots of Rubia tinctorum L. (madder) using the ultrasonic-assisted method. Scanning electron microscopy and Fourier Transform–infrared analysis were performed to investigate the effect of plasma treatment on the physical and chemical properties of wool fibres. The effects of plasma treatment type, plasma treatment parameters and the duration of dyeing on colorimetric and fastness properties were investigated. The etching of the wool fibre surface and roughness after plasma treatment were proven with scanning electron microscopy images. The Fourier Transform–infrared spectra showed that no significant differences in the functional groups of wool fibre occurred after plasma treatment. The experimental results proved that plasma treatment parameters and dyeing time had an effect on the colorimetric and fastness properties of the samples. Furthermore, an artificial neural network model was proposed for estimating the dyeing properties of wool fabrics, namely, L, a, b, K/S, colour change, rubbing fastness (dry) and rubbing fastness (wet). The experimental results show that the proposed model achieves regression values greater than 0.97 for all dyeing properties. The proposed model is successful and can be efficiently used for estimating the dyeing characteristics of wool fabrics. Note de contenu : - MATERIALS AND METHODS : Materials - Dye extraction - Plasma application - Dyeing process - Surface morphology analysis - FTIR analysis - Colorimetric analysis - Fastness analysis - Proposed ANN model
- RESULTS AND DISCUSSION : Scanning electron microscopy analysis - FTIR analysis - Fastness properties - Analysis of colour parameters - Neural network-based results
- Table 1 : The washing and rubbing fastness values of the samples
- Table 2 : Colour properties of the samples
- Table 3 : Regression results of the proposed model for the dyeing properties of samplesDOI : https://doi.org/10.1111/cote.12700 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12700 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40393
in COLORATION TECHNOLOGY > Vol. 140, N° 1 (02/2024) . - p. 91-102[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24413 - Périodique Bibliothèque principale Documentaires Disponible Nature as a role model in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 11, N° 1 (2018)
PermalinkA new test method for weatherability prediction by using a remote plasma reactor / M. Akahori in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 89, B2 (06/2006)
PermalinkNon-thermal plasma degradation of dye using an underwater dielectric barrier discharge created inside a porous hydrophobic ceramic tube / Jin-Oh Jo in COLORATION TECHNOLOGY, Vol. 131, N° 2 (04/2015)
PermalinkDe nouvelles solutions in GALVANO ORGANO, N° 876 (09/2019)
PermalinkNozzle in protective position / Uwe Prüssmeier in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 4 (2021)
PermalinkPermalinkOxygen plasma pretreatment improves dyeing and antimicrobial properties of wool fabric dyed with natural extract from pomegranate peel / Jelena Peran in COLORATION TECHNOLOGY, Vol. 136, N° 2 (04/2020)
PermalinkPlasma activation from roll to roll / Dariusz Korzec in ADHESION - ADHESIVES + SEALANTS, N° 3/2015 (2015)
PermalinkPermalinkPlasma beats the fear of flying / Ines A. Melamies in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 6 (06/2013)
PermalinkPermalinkPlasma for adhesion promotion / Uwe Stöhr in ADHESION - ADHESIVES + SEALANTS, Vol. 13, N° 3/2016 (2016)
PermalinkPlasma makes skis fly / Ines A. Melamies in KUNSTSTOFFE INTERNATIONAL, Vol. 105, N° 1-2 (01-02/2015)
PermalinkPlasma paints a brighter picture / Radovan Tino in EUROPEAN COATINGS JOURNAL (ECJ), N° 5/2011 (05/2011)
PermalinkPlasma processes reduce costs in automotive manufacturing in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 13, N° 2 (2020)
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