Acrylic polymeric binder for leather finishing application / Michael Ifeanyichukwu Ugbaja / Saarbrücken [Germany] : Lambert Academic Publishing (2016) 

Titre : Acrylic polymeric binder for leather finishing application : Water vapour permeability and some other physical properties of leathers - Effect of finish formulations Type de document : texte imprimé Auteurs : Michael Ifeanyichukwu Ugbaja, Auteur ; Ejila Amali, Auteur Editeur : Saarbrücken [Germany] : Lambert Academic Publishing Année de publication : 2016 Importance : IX-84 p. Présentation : ill. Format : 22 cm ISBN/ISSN/EAN : 978-3-659-91685-4 Prix : 49,90 E Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents de tannage Cuirs et peaux -- Finition Cuirs et peaux -- Propriétés physiques Formulation (Génie chimique) Liants Perméabilité Plan d'expérience Polyacryliques Polymérisation en émulsion Retannage Tannage Vapeur d'eau Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : This book is a simple and concise introduction to the effect of polymeric binders in the performance of a finished leather. It aims at exposing the formulation requirements of certain acrylic resin binder suitable for leather finishing applications. The materials are presented in a manner to benefit both the students studying leather science and technology or leather engineering in tertiary institutions as well as those in the leather industry whose knowledge in this technology is deficient. Students of polymer science and technology will also appreciate the contents of this book as it tries to study the effect acrylic polymer resin in the performance of finished leathers. This book will assist mostly undergraduates in understanding the processes of leather making,formulation of finishing agents, properties and behavior of finished leather. It will also benefit those with little or no technical background in leather processes as well as those who have sophisticated background in science but no experience in the leather industry. It will also make for a good reading material for the general public that are yet to know what synergy exist between polymers and leather. Note de contenu : - GENERALITES : Description of leather - Forms of leather - Types of leather - Leather manufacturing processes - Acrylic polymer - Polymerisation techniques - Components of emulsion polymerisation reaction - Principle of emulsion polymerisation - Leather finishing - REVIEW OF LITERATURE : General introduction - Synthetic resin dispersions for leather finishing - Synthesis of polymer dispersions - Characterisation of polymer dispersions and effect on properties of retanned leathers - Factors affecting physical properties of finished leathers - Retannage and properties of finished leathers - Water vapour permeability, wvp of finished leathers - Effect of important variables on water vapor permeability - DESIGN OF EXPERIMENT : Experimental procedures - RESULTS : Examination of resin binder - Physical testing of the finished leather substrate - DISCUSSION - CONCLUSION AND RECOMMENDATIONS - ANNEXES : A. Some chemicals used in leather processing - B. Definition of some leather processing terms Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36813

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Acrylic polymeric binder for leather finishing application : Water vapour permeability and some other physical properties of leathers - Effect of finish formulations URL

Application and properties of modified wook keratin composites as film-forming agent for leather finishing / Zeng Chunhui in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 6 (11-12/2014)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 98, N° 6 (11-12/2014) . - p. 269-274 Titre : Application and properties of modified wook keratin composites as film-forming agent for leather finishing Type de document : texte imprimé Auteurs : Zeng Chunhui, Auteur ; Qi Lu, Auteur Année de publication : 2014 Article en page(s) : p. 269-274 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Allongement à la rupture Composites Couches minces -- Propriétés mécaniques Cuirs et peaux -- Finition Ethanedial L'éthanedial ou glyoxal est un composé organique de formule brute C2H2O2 et de formule semi-développé O=CH-CH=O. Ce liquide de couleur jaune est le plus petit dialdéhyde existant. C'est aussi une forme tautomère de l'éthynediol (HO–C≡C–OH) . Frottements (mécanique) Hydroxyméthyle cellulose de sodium Laine Mélanges (chimie) Perméabilité Réticulation (polymérisation) Solutions (chimie) Traction (mécanique) Vapeur d'eau Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A series of wool keratin/hydroxymethyl cellulose sodium (CMCNa/glyoxal composite membranes were prepared via solution blending and cross linking modification technology. The optimization of composite films preparation was critically investigated via orthogonal experimental design. Experimental results indicated that the cross-linking agent had a greater effect on the mechanical properties of films. Under the optimal condition (keratin/CMCNa weight ratio : 5.5, 0.3% glyoxal, reaction time : 1h, reaction temperature: 37°C), the composite membrane showed good tensile strength and maximum elongation, which can be used as film-forming agent in leather finishing. Moreover, in contrast to casein, the application properties of the leather finished by modified keratin composite film were measured : tensile strength increased by 11.3%, elongation at break improved by 25.7% as well as water vapour permeability by 3.76 %, and wet rub resistance fastness improved from 3 to 4. However, air permeability decreased by 15.1%. SEM and FTIR analysis verified that it has good compatibility, strong hydrogen bonds and covalent bonds formed between cross-linking agent and raw material molecules. The product might be great potentiel for application in leather finishing as film-forming agent instead of casein. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Preparation of wool keratin solution - Preparation of wool keratin/CMCNa/glyoxal composite membranes - Measurement of mechanical properties - Characterization - Application of modified wool keratin composite film in leather finishing - Determination of applied properties - RESULTS AND DISCUSSION : SEM analysis - FTIR analysis - Orthogonal experiment results - Influence of cross-linking agent on mechanical properties - Application testing En ligne : https://drive.google.com/file/d/1c5sNuqn9PQQCfw14uv6Ac4lbu0gDH0uN/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22649 [article]

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Application of acrylic resin coating agent modified by nano SiO2 / Ma Jianzhong in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 5 (09-10/2006)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 90, N° 5 (09-10/2006) . - p. 188-192 Titre : Application of acrylic resin coating agent modified by nano SiO2 Type de document : texte imprimé Auteurs : Ma Jianzhong, Auteur ; Zhang Zhijie, Auteur ; Liu Lingyun, Auteur ; Hu Jing, Auteur Année de publication : 2006 Article en page(s) : p. 188-192 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Air Composites Cuir -- Nettoyage Cuirs et peaux -- Finition Cuirs et peaux -- Propriétés mécaniques Dioxyde de silicium Formulation (Génie chimique) Nanoparticules Perméabilité Polyacryliques Résistance à l'abrasion Revêtements organiques Vapeur d'eau Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : An acrylic resin and an acrylic-resin/nano-SiO2 composite prepared as coating agents were applied in leather finishing and various properties of the finished leathers were determined. The results show that the physicalmechanical properties and cleaning properties of the leather samples finished with the acrylic-resin/nano-SiO2 composite increase noticeably. As examples, water vapour penetration and air permeability improved by 11.5% and 15.4%, dry rub fastness and folding strength [flexing] of the leather finished with the composite resin were also, to a degree, superior to that finished by the acrylic resin. The surface morphology observed by SEM (scanning electron microscope-energy spectrum of X-ray analysis) and AFM (atomic force microscope) indicated that the surface of the leather finished with the composite resin is smoother than that of leathers finished with the acrylic resin. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Instruments - Synthesis of nano composite acrylic resin - Application in leather finishing - Tests of the finished leather’s performances - RESULTS AND DISCUSSION : Air permeability of the finished leathers - Water vapour penetration of the finished leathers - Dry and wet rub fastness of the finished leather samples - Folding endurance - Observation of the finished leathers by SEM-EDS - Observation of the finished leathers by AFM - Table 1 : The formulae for finishing - Table 2 : Air permeability of different leather samples - Table 3 : Water vapour penetration of different leather samples - Table 4 : Grades of dry and wet rub fastness En ligne : https://drive.google.com/file/d/1JicRME_BV_7V1HagPpLnWEYMWD296N8a/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39054 [article]

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A better fit for exterior wood coatings / Niels Lutke Schipholt in EUROPEAN COATINGS JOURNAL (ECJ), (05/2023)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > (05/2023) . - p. 22-26 Titre : A better fit for exterior wood coatings : Specialized wet cup method to measure water-vapour permeability Type de document : texte imprimé Auteurs : Niels Lutke Schipholt, Auteur ; Mathilde van't Oor, Auteur Année de publication : 2023 Article en page(s) : p. 22-26 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Applications extérieures Bois -- Revêtements protecteurs Perméabilité Polyacryliques Polyalkydes Revêtements en bâtiment:Peinture en bâtiment Vapeur d'eau Index. décimale : 667.9 Revêtements et enduits Résumé : There is growing interest in the water-vapour permeability of exterior wood coatings as a performance specification to help predict moisture transfer. Buildings are increasingly more airtight and better insulated which makes it important to assess the risk of internal condensation. Current test methods to measure the water-vapour permeability of coatings are not a good fit for wood coatings. A new wet cup test method could be the solution. Note de contenu : - Experimental - Coating calculation - Variation in µ-value from edge leakage and dry film thickness measurement - Method repeatability greater than required by standard - Acrylic and alkyd systems have different permeability - Strong benefits in assessing wood coating wvp - Table 1 : Results of the analysis of edge losses for wet cups sealed with butyl tape - Table 2 : Repeatability results for Norway spruce reference discs (uncoated) along with samples with acrylic 4, acrylic 3 and alkyd emulsion 1 En ligne : https://drive.google.com/file/d/1BNMNK4AnqH4Vqqy2bTdcpsvTUxS83Gq5/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39321 [article]

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Beyond green : a toolbox for uncompromised industrial flooring / Rob Rasing in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4584 (05/2013)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 203, N° 4584 (05/2013) . - p. 24-28 Titre : Beyond green : a toolbox for uncompromised industrial flooring Type de document : texte imprimé Auteurs : Rob Rasing, Auteur ; Jared D. Bender, Auteur Année de publication : 2013 Article en page(s) : p. 24-28 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésion Epoxydes Isocyanates Matériaux cimentaires -- Revêtements protecteurs Perméabilité Polyamines Revêtements de sols industriels Revêtements en phase aqueuse:Peinture en phase aqueuse Sols -- Revêtements protecteurs Vapeur d'eau Index. décimale : 667.9 Revêtements et enduits Résumé : For decades, polymer technology has provided the civil engineering sector with high performance flooring systems. Waterborne epoxy primers are well described for delivering excellent adhesion to concrete substrates and for providing unique water vapour permeable flooring solutions. Solvent-free epoxy floorings, on the other hand, promote both increased mechanical and chemical protection to concrete substrates, allowing for enhanced durability. In the topcoat and sealer applications, 2-pack polyurethanes have built a reputation, in particular where satin finishes in combination with durability against UV light and high wear resistance, are desired. Novel flooring technologies are presented in this paper that address industry performance short-falls and demand for fast return, with reduced environmental impact. The use of high performance, rapid return epoxy primers in conjunction with aliphatic polyamine-cured isocyanate topcoats delivered to the end-user a novel combination of performance properties. Individual features such as clean air (or emission compliance) are no longer sufficient and often considered 'must-have'. The additional synergy is found when combining polymer technologies to a 'system approach' in which each technology component delivers added value to architect, applicator and end-user. A combination of broad formulation latitude ; fast property development at both ambient and low temperatures ; and high mechanical and chemical integrity are demonstrated, which result in polymer floorings with excellent properties well-suited for use in civil engineering, protective coating and structural adhesive applications. Note de contenu : - Primer application to concrete - adhesion and fast walk-on - Midcoat application - performance and longevity - Topcoat application - fine-tuning performance and ultimate aesthetics En ligne : https://drive.google.com/file/d/1JHYMdpN_foz2Rz54jSpEn6Sl_LsACkkF/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18548 [article]

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Chemical, mechanical, and thermal properties of UV-curable cellulose acetate butyrate-based oligomers and their electrospun fibrous mats / Ozan Gazi Dehmen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 4 (07/2020)  

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Cleaning plastic parts with steam in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 12, N° 1 (2019)

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Coating permeability on wood / Peter Svane in EUROPEAN COATINGS JOURNAL (ECJ), N° 6 (06/2017)  

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Collaborative study for the determination of repeatability and reproductibility of the measurement of the water vapour permeability of leather with method ISO 14268 / Giorgio Pozza in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 6 (11-12/2016)  

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Comparison of physico-mechanical and physical-chemical properties of leather tanned using different methods / Malgorzata Kowalska in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 99, N° 6 (11-12/2015)  

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Le confort est-il une notion mesurable ? / J.-P. Boulanger in TECHNICUIR, N° 7 (08-09/1976)  

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Creating new barriers with graphene / Richard Akam in SURFACE COATINGS INTERNATIONAL, Vol. 99.5 (10-11/2016)  

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Creating new barriers with graphene / Richard Akam in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4627 (12/2016)  

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Cuirs et peaux. Détermination de la perméabilité du cuir à la vapeur d'eau (essai statique) - Norme NF G 52-016 / Association Française de Normalisation (Paris) / Saint-Denis La Plaine : Association Française de Normalisation (AFNOR) (1976)

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Cuirs et peaux. Détermination de la perméabilité du cuir à la vapeur - Norme NF G 52-013 / Association Française de Normalisation (Paris) / Saint-Denis La Plaine : Association Française de Normalisation (AFNOR) (1972)

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Determination of the surface absorption of water vapor and liquid water by leather and other sheet materials / Ludwig Seligsberger in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXIX (Année 1974)  

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Determination of water vapour permeability of leather / Hans-Jürgen Kellert in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 88, N° 2 (03-04/2004)  

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Drying paths of phase-separating solution coatings exposed to humidity / Masato Yamamura in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 1 (01/2022)  

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Durable silica antireflective coating prepared by combined treatment of ammonia and KH570 vapor / Jichen Huang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 2 (03/2019)  

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ECO at all costs ? An ecological balance of some water-based paints / A. Hofland in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 67, N° 848 (09/1995)

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