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The effect of fatliquor emulsion on the physical properties of resultant leather / Zongcai Zhang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 88, N° 3 (05-06/2004)
[article]
Titre : The effect of fatliquor emulsion on the physical properties of resultant leather Type de document : texte imprimé Auteurs : Zongcai Zhang, Auteur ; Hong Dai, Auteur ; Juan Du, Auteur Année de publication : 2004 Article en page(s) : p. 110-112 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chromatographie en phase liquide à hautes performances
Cuirs et peaux -- Propriétés physiques
Emulsions
Granulométrie
Produits de nourriture du cuir
Tension superficielleIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : This paper reports on a study of the effects of fatliquor emulsion parameters on leather performance. The results show that the emulsion properties, including particle size distribution of emulsion, surface tension and oil (active fat/ neutral oil) content have a great impact on the performance of the resultant leather. The work provides a theoretical foundation for the development of fatliquoring agents. Note de contenu : - MATERIALS AND METHODS : Reagents - Particle size distribution of emulsion - Emulsion stability of fatliquor - Surface tension - Effective component content - Active component contents of the effective component - Stratigraphic testing - Bound oil in leather - Physical properties of resultant leather
- RESULTS : Emulsion characteristics of fatliquors - Results of stratigraphic testing - Physical properties of resultant leather
- DISCUSSION : Emulsion characteristics and extracted fat content of resultant leather - Emulsion properties and physical properties of resultant leather
- Table 1 : HPLC conditions
- Table 2 : Emulsion properties of fatliquoring agents
- Table 3 : Extracted oil content in the 3 splits of the resultant leather
- Table 4 : Physical properties of resultant leathersEn ligne : https://drive.google.com/file/d/1LcRnJiFM9i2WpYATw_Z1neYP4WbTywwn/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39637
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 88, N° 3 (05-06/2004) . - p. 110-112[article]The effect of particle size on the characteristics and performance of emulsion binders and topcoats / T. J. Braithwaite in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 61 et 62 (Années 1977 et 1978)
[article]
Titre : The effect of particle size on the characteristics and performance of emulsion binders and topcoats Type de document : texte imprimé Auteurs : T. J. Braithwaite, Auteur Année de publication : 1978 Article en page(s) : p. 82-86 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colloides
Cuirs et peaux -- Finition
Emulsification
Emulsions
Emulsions -- Stabilité
Laque et laquage
Liants
Polymères en émulsion
Polyuréthanes
Taille des particulesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The term emulsion, as applied to coating binders as is known today, is, in fact, a misnomer since by definition an emulsion is a mixture of two or more immiscible liquids, and binders are a mixture of an immiscible solid and a liquid. The correct terminology should thus be a resin dispersion but, for the sake of convenience, will always be referred to as "emulsion".
Aqueous polymers exist as three specific types. These types vary very significantly in both physical and mechani-cal properties. These three types are aqueous dispersions or emulsions, colloidal dispersions and true solutions.
Aqueous dispersions, or emulsions as they are commonly known, can be defined as discrete particles of high molecular weight polymer dispersed in an aqueous medium. The solid polymer is known as the disperse phase, while the water is the disperse medium.
Colloidal dispersions can be considered to be ultra-fine particles or molecular weight intermediates between that of aqueous dispersions and true solutions. The polymers contain polar groups, either acidic or basic, which do impart some degree of solubility. The colloidal dispersions can also be considered as hybrids of dispersions and true solutions, in that they possess properties which are common and characteristic of both types. True solutions, or water reducible resins, are polymers in which polymerisation reactions are performed in water miscible organic solvents such as esters and alcohols, or solubilised by the addition of alkali, i.e. neutralisation. Solubility is also attributed to polar groups on the polymer side chains. The polymers are thus totally soluble in the medium water.
The above generalisation will thus suffice to explain the varions "states" in which aqueous polymers are available. Emulsions find application in the function as binders or topcoats for leather finishing, while colloidal dispersions are used to a smaller extent as thickeners for the finish mixes and more commonly, as pasting adhesives. Water reducible urethane lacquers are also the colloidal dispersions type. True solutions are not currently used in leather finishing but are in the paint industry, particularly the automotive and appliance industries.Note de contenu : - TYPES OF EMULSIONS
- SURFACE ACTIVE AGENTS
- THE EMULSIFICATION PROCESS
- MEASUREMENT OF PARTICLE SIZE DISTRIBUTION : Measurement of particle size distribution : The electron microscope - Sedimentation method - Soap titration method - Light scattering method - General remarks
- THE EFFECT OF PARTICLE SIZE ON THE NATURE OF THE EMULSION, EMULSION POLYMERS AND BINDERS : Emulsion stability - Viscosity - Solids - Nitrocellulose lacquer emulsions
- THE EFFECT OF PARTICLE SIZE ON THE EFFECT OF PARTICLE SIZE ON THE PERFORMANCE OF THE EMULSION-BASED FINISHING SYSTEMS : Properties improved by increasing particle size - Disadvantages of fine particle emulsionsEn ligne : https://drive.google.com/file/d/1EKuMbEz4pgpYU_3wKzkdO2M4Th7KcxAl/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35222
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 61 et 62 (Années 1977 et 1978) . - p. 82-86[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008597 - Périodique Archives Documentaires Exclu du prêt The effect of particle size on the characteristics and performance of emulsion binders and topcoats / T. J. Braithwaite in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 62, N° 4 (07-08/1978)
[article]
Titre : The effect of particle size on the characteristics and performance of emulsion binders and topcoats Type de document : texte imprimé Auteurs : T. J. Braithwaite, Auteur Année de publication : 1978 Article en page(s) : p. 82-86 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colloides
Cuirs et peaux -- Finition
Emulsification
Emulsions
Emulsions -- Stabilité
Laque et laquage
Liants
Polymères en émulsion
Polyuréthanes
Taille des particulesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The term emulsion, as applied to coating binders as is known today, is, in fact, a misnomer since by definition an emulsion is a mixture of two or more immiscible liquids, and binders are a mixture of an immiscible solid and a liquid. The correct terminology should thus be a resin dispersion but, for the sake of convenience, will always be referred to as "emulsion".
Aqueous polymers exist as three specific types. These types vary very significantly in both physical and mechani-cal properties. These three types are aqueous dispersions or emulsions, colloidal dispersions and true solutions.
Aqueous dispersions, or emulsions as they are commonly known, can be defined as discrete particles of high molecular weight polymer dispersed in an aqueous medium. The solid polymer is known as the disperse phase, while the water is the disperse medium.
Colloidal dispersions can be considered to be ultra-fine particles or molecular weight intermediates between that of aqueous dispersions and true solutions. The polymers contain polar groups, either acidic or basic, which do impart some degree of solubility. The colloidal dispersions can also be considered as hybrids of dispersions and true solutions, in that they possess properties which are common and characteristic of both types. True solutions, or water reducible resins, are polymers in which polymerisation reactions are performed in water miscible organic solvents such as esters and alcohols, or solubilised by the addition of alkali, i.e. neutralisation. Solubility is also attributed to polar groups on the polymer side chains. The polymers are thus totally soluble in the medium water.
The above generalisation will thus suffice to explain the varions "states" in which aqueous polymers are available. Emulsions find application in the function as binders or topcoats for leather finishing, while colloidal dispersions are used to a smaller extent as thickeners for the finish mixes and more commonly, as pasting adhesives. Water reducible urethane lacquers are also the colloidal dispersions type. True solutions are not currently used in leather finishing but are in the paint industry, particularly the automotive and appliance industries.Note de contenu : - TYPES OF EMULSIONS
- SURFACE ACTIVE AGENTS
- THE EMULSIFICATION PROCESS
- MEASUREMENT OF PARTICLE SIZE DISTRIBUTION : Measurement of particle size distribution : The electron microscope - Sedimentation method - Soap titration method - Light scattering method - General remarks
- THE EFFECT OF PARTICLE SIZE ON THE NATURE OF THE EMULSION, EMULSION POLYMERS AND BINDERS : Emulsion stability - Viscosity - Solids - Nitrocellulose lacquer emulsions
- THE EFFECT OF PARTICLE SIZE ON THE EFFECT OF PARTICLE SIZE ON THE PERFORMANCE OF THE EMULSION-BASED FINISHING SYSTEMS : Properties improved by increasing particle size - Disadvantages of fine particle emulsionsEn ligne : https://drive.google.com/file/d/1EKuMbEz4pgpYU_3wKzkdO2M4Th7KcxAl/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40490
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 62, N° 4 (07-08/1978) . - p. 82-86[article]
[article]
Titre : The flexibility of finishing Type de document : texte imprimé Auteurs : Flavio Guarda, Auteur Année de publication : 2002 Article en page(s) : p. 47-49 Langues : Anglais (eng) Catégories : Agent mattant
Charges (matériaux)
Cires
Colorants
Cuirs et peaux -- Finition
Emulsions
Epaississants
Liants
PigmentsIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The main purpose of finishing is to provide different types of leather with characteristics that satisfy the requirements of a continuously evolving global market.
These charateristics include following : colour, brightness, matting, feel, softness, print pattern, water resistance, special physical properties.
Almost all types of hides and skins can be finished. The final uses of the different leathers is wide and includes shoe uppers, furniure and automotive upholstery, garments and leather goods. It is therefore very important for the finisher to know the final leather use in order to adjust the finishing in the best way.
The range of the chemical products used in finishing is considerable, and combinations of these products can produce almost any effect or property. These auxiliaries can be divided into the following groups:Note de contenu : - BINDERS : Acrylic binders - Polyurethane binders - Butadiene binders - Protein binders - Crosslinkes
- MATTING AGENTS
- FILLERS
- WAXES
- WETTING AND PENETRATING AGENTS
- THICKENING AGENTS
- EMULSIONS AND SOLVENT BASED PRODUCTS : Nitro-ceLlulose lacquers and emulsions - Cellulose acetobutyrate (CAB) laquers and emulsions - Mono and two-component solvent-borne polyurethanes - Aqueous and solvent-borne silicones - Fluorine derivitives
- PIGMENTS
- LIQUID DYESTUFFSEn ligne : https://drive.google.com/file/d/1_IuF_5LsR0Dz_zarxXJ4W1DgVf0WtFdc/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32264
in WORLD LEATHER > Vol. 15, N° 5 (08-09/2002) . - p. 47-49[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006180 - Périodique Bibliothèque principale Documentaires Disponible Thermosetting acrylic emulsion for coating - A literature review / Seena Joseph in PAINTINDIA, Vol. LIX, N° 12 (12/2009)
[article]
Titre : Thermosetting acrylic emulsion for coating - A literature review Type de document : texte imprimé Auteurs : Seena Joseph, Auteur ; V. A. Bambole, Auteur ; Prakash A. Mahanwar, Auteur ; Abhijit S., Auteur Année de publication : 2009 Article en page(s) : p. 61-72 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Emulsions
Résines acryliques
Revêtements
ThermodurcissablesIndex. décimale : 667.9 Revêtements et enduits Résumé : Emulsions - In this paper a review of various methods of synthesis of acrylic emulsion coatings are mentioned. When a coating is applied to a substrate, solvent evaporates fromthe liquid phase resulting in the formation of a film. If the solvent used is organic solvent, the volatileorgaic compound (VOC) emitted may prove to be an environmental hazard. But if water is used as a solvent instead of the organic compound, then the VOC emitted to the atmosphere is negligible. With growing environmental awarenes and stringent laws being formed, the future of the coating industry depends on paint systems that emit minimal VOCs or no VOCs. The market study presented towards the end of this paper also indicates that there is a decrease in the market of solvent based coatings while there is a sharp increase in the market for water based coatings particularly acrylic coatings. The main objective of the review is to describe the acrylic polymer coating synthesis in detail based on the knowledge available in the open literature. Note de contenu : Acrylic resin / Acrylic emulsions : Various methods of synthesis of thermosetting acrylic coatings (resin system/coating) : Aqueous and non aqueous systems, hybrid systems - Thermal and photo degradation of acrylic resins - Conclusion and scope for acrylic coatings. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9046
in PAINTINDIA > Vol. LIX, N° 12 (12/2009) . - p. 61-72[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012075 - Périodique Bibliothèque principale Documentaires Disponible Toxicity values for cationic surfactants / B. Vallés in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 37, N° 5/2000 (09-10/2000)
PermalinkTroisième congrès mondial de l'émulsion / Troisième congrès mondial de l'émulsion (24 - 27 sept. 2002; Lyon) / Paris : Editions de santé (2002)
PermalinkTroisième Congrès mondial de l'émulsion / Congrès mondial de l'émulsion, (24-27 sept. Lyon - France) / 2002
PermalinkUniversal paint stainers based on malenized rice bran oil / Hemant J. Kulkarni in PAINTINDIA, Vol. LVI, N° 2 (02/2006)
PermalinkUse of natural fat emulsions in fatliquoring process and investigation of fatty spue formation / Gökhan Zengin in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 3 (03/2011)
PermalinkVariables influencing microflocculation in coalesced emulsion in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 73, N° 916 (05/2001)
PermalinkWater based finishes / John J. McCarthy in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXII (Année 1977)
PermalinkWater hardness as an important parameter of the fatliquoring process / Krzysztof Smiechowski in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 6 (11-12/2017)
PermalinkWaterborne polyuréthane dispersions / John Argyropoulos in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4547 (04/2010)
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