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Polysilane cross-linked binders for aqueous finishing / Lluis Ollé in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 94, N° 3 (05-06/2010)
[article]
Titre : Polysilane cross-linked binders for aqueous finishing Type de document : texte imprimé Auteurs : Lluis Ollé, Auteur ; A. Shendryck, Auteur ; Felipe Combalia, Auteur ; J. Jorge, Auteur ; Anna Bacardit, Auteur Année de publication : 2010 Article en page(s) : p. 111-116 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Finition
PolysilanesTags : Cuir 'Finition aqueuse' Polysilane Alkoxysilane Epoxyde Résines acryliques Polyuréthanes Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : This study explores the cross-linking reaction between an epoxy functional alkoxysilane and both acrylic resins and polyurethanes. Although this type of cross-linker is employed in sectors other than the leather industry, it can be used in finishing processes. A comparison of results indicates that such cross-linkers presents a better cross-linking reaction rate than polyaziridine, polyisocyanate, epoxy resin and polycarbomdiimide. En ligne : https://drive.google.com/file/d/1IFaHcPDzCWphp4EYPTy1c7oCAVUzjCZt/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9625
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Code-barres Cote Support Localisation Section Disponibilité 012255 - Périodique Bibliothèque principale Documentaires Disponible Preparation and properties of nano-ZnO/organic fluorine modified polyacrylate finishing agent / Sui Zhihui in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 6 (06/2020)
[article]
Titre : Preparation and properties of nano-ZnO/organic fluorine modified polyacrylate finishing agent Type de document : texte imprimé Auteurs : Sui Zhihui, Auteur ; San Jinglong, Auteur ; Xuedong Wu, Auteur ; Jingbin Zhang, Auteur ; Lingfang Sun, Auteur Année de publication : 2020 Article en page(s) : p. 207-214 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact
Cuirs et peaux -- Finition
Cuirs et peaux -- Propriétés mécaniques
Essais de résilience
Essais dynamiques
Fluor
Fourier, Spectroscopie infrarouge à transformée de
Humidité -- Absorption:Eau -- Absorption
Latex
Nanoparticules
Oxyde de zinc
Polyacrylates
Potentiel zeta
Résistance à la déchirure
Spectroscopie de photoélectronsIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : A nano-ZnO/organic fluorine-modified polyacrylate leather finishing agent was prepared using a mixture of a Silyl-modified nano-ZnO, dodecafluoroheptyl methacrylate (DFMA), methyl methacrylate (MMA) and butyl acrylate (BA) as raw materials. A semi-continuous seeded emulsion polymerization followed. The overall research objective was to improve the bacteriostatic, hydrophobicity and anti-aging properties of leather articles. The structure of the composite emulsion and its film were characterized and analyzed by FT-IR, TEM and XPS. The results showed that the latex particles had an obvious core-shell structure, a smooth surface and were monodisperse. The particle size of the emulsion ranged between 30 and 50 nm. The average value of Zeta potential was -40.1 mV which signified a good emulsion stability. The composite emulsion and its film had good UV resistance and water resistance. When the content of organic fluorine in the film was a maximum 20 %, the contact angle of a water drop on the finished leather, tensile strength and tear strength were 133.48°, 620 N and 61 N, respectively. When the content of nano-ZnO in the film was 1.0%, the average width of antibacterial band of finished leather was 2.1 mm. The finished leather also demonstrated a good anti-aging property. Note de contenu : - MATERIALS AND METHODS : Materials - Modification of nano-ZnO - Preparation of nano-ZnO/organic fluorine-modified polyacrylate emulsion - Finishing process of leather
- CHARACTERIZATION AND PERFORMANCE MEASUREMENTS : Fourier transform infrared spectra (FT-IR) analysis - Particle size and zeta potential of composite emulsion - Morphology of latex particles (TEM) - XPS analysis of latex film surface - Water absorption measurement of latex film - UV resistance measurement of composite emulsion - EDS-mapping analysis of finished leather - The contact angle measurement of leather to water - Measurement of application properties
- RESULTS AND DISCUSSION : FT-IR analysis - Particle size distribution and zeta potential of emulsion - Morphological analysis of emulsion partifles - XPS analysis of latex film - Water absorption of latex film - UV transmittance of composite emulsion - EDS analysis of leather surface - Bacteriostatic property of the finished leather - Contact angle of leather to water - Strength test of leather - Anti-aging test of leather - Physical performanceDOI : https://doi.org/10.34314/jalca.v115i6.3823 En ligne : https://drive.google.com/file/d/1zvX5ebHIRemL_rlmmM5UMHqq_IBQQ7dE/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34322
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Code-barres Cote Support Localisation Section Disponibilité 21821 - Périodique Bibliothèque principale Documentaires Disponible Preparation and properties of polyurethane finishing agent using butylamine as chain-extension agent / Keyong Tang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 9 (09/2009)
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Titre : Preparation and properties of polyurethane finishing agent using butylamine as chain-extension agent Type de document : texte imprimé Auteurs : Keyong Tang, Auteur ; Bing Zhu, Auteur ; Xuejing Zheng, Auteur ; Dennis C. Shelly, Auteur Année de publication : 2009 Article en page(s) : p. 295-301 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Allongement à la rupture
Butylamine
Cuirs et peaux -- Finition
Cuirs et peaux -- Propriétés mécaniques
Humidité -- Absorption
Polyuréthanes
Résistance à l'humidité
Transition vitreuseIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : With isophorone diisocyanate (IPDI), polytetrahydrofuran (PTMG), and dimethylolpropanoic acid (DMPA) as monomers, aqueous polyurethane finishing agents were synthesized. Butylamine, ethylene glycol and ethylene diamine were used as chain-extension agents. The aqueous polyurethane finishing agents were dried to yield polyurethane films (PU films). Mechanical properties of the films were studied. Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and water absorption were employed to characterize the structure and behaviors of the polyurethane films. Properties of the films obtained by different chain-extension agents were compared. Results show that the properties of the butylamine chain-extended film are better than those of the films chain-extended by either ethylene glycol or ethylene diamine. The elongation at break was the highest, 1454%. The glass transition temperature (Tg) reached -82°C and the water resistance was also better. Note de contenu : - EXPERIMENTAL : Materials and apparatus - Synthesis of aqueous polyurethane finishing agents - Preparation of polyurethane films - Characterization (Mechanical behavior - FTIR - Thermal analysis - Water absorption)
- RESULTS AND DISCUSSION : Mechanical properties of different PU films - Glass transition temperature (Tg) of the PU film - Water absorption of the PU filmsEn ligne : https://drive.google.com/file/d/13-BZ54p88tuTxZCgHHWO1PWIG7dtpMU_/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17833
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Code-barres Cote Support Localisation Section Disponibilité 011556 - Périodique Bibliothèque principale Documentaires Disponible 011557 - Périodique Bibliothèque principale Documentaires Disponible Preparation and properties of thermally expandable microspheres for foam coating / Guodong Huang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVI, N° 7 (07/2021)
[article]
Titre : Preparation and properties of thermally expandable microspheres for foam coating Type de document : texte imprimé Auteurs : Guodong Huang, Auteur ; Zhixian Lin, Auteur ; Haojun Fan, Auteur ; Jun Xiang, Auteur ; Chong Zheng, Auteur ; Zhiqing Luo, Auteur Année de publication : 2021 Article en page(s) : p. 249-259 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Croûte (cuir) On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés.
Cuirs et peaux -- Finition
Fleur du cuir
Formulation (Génie chimique)
Microsphères
Moussants
Mousses plastiques
Polyacétate de vinyle
Polyacrylonitrile
Polymères expansés
Polyméthacrylate de méthyleLe poly(méthacrylate de méthyle) (souvent abrégé en PMMA, de l'anglais Poly(methyl methacrylate)) est un polymère thermoplastique transparent obtenu par polyaddition dont le monomère est le méthacrylate de méthyle (MMA). Ce polymère est plus connu sous son premier nom commercial de Plexiglas (nom déposé), même si le leader global du PMMA est Altuglas International9 du groupe Arkema, sous le nom commercial Altuglas. Il est également vendu sous les noms commerciaux Lucite, Crystalite, Perspex ou Nudec.
Résistance chimique
Réticulation (polymérisation)
Revêtements organiquesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : A type of thermally expandable microspheres (TEMs) for foam coating was prepared by suspension polymerization with acrylonitrile (AN), methyl methacrylate (MMA), vinyl acetate (VAC) as shell polymer monomers and i-pentane as core foaming agent. The effects of an aqueous additive (Sodium Chloride, NaCl) on the size and distribution of TEMs, and the effects of crosslinking degree, i-pentane dosage and monomer mass ratio on the expansion property, expansion temperature and solvent-resistance of TEMs were investigated. The results showed that when the dosage of NaCl was close to the saturation solubility (30%), the dosage of crosslinking agent and alkane were about 0.09% and 7.4%, and the mass ratio of AN/MMA/VAC w rm distribution and good solvent resistance, the expansion diameter ratio was 5 times under 110~120 C, which meets the application requirements for foam coating of leather or synthetic leather. Note de contenu : - MATERIALS AND METHODS : Experimental materials - Preparation of TEMs - Preparation of foaming coating - Finishing of split leather and damaged grain leather
- CHARACTERISTICS OF TEMS : Determination of particle size and distribution - Observation on surface morphology - Determination of expansion property and temperature
- RESULTS AND DISCUSSION : Structure design of TEMs - Effect of NaCl concentration on the size and distribution of TEMs - Effect of crosslinking degree on the expansion property and temperature of TEMs - Effect of dosage of alkane on expansion property and temperature of TEMs - Effect of monomer mass ratio on expansion property, temperature and solvent resistance of TEMs - Morphology of split leather foam coating - Matting and mending effect of foaming coating
- Table 1 : The basic formula for preparing TEMs
- Table 2 : Foaming properties and foaming temperature of TEMS with different content of EGDMA
- Table 3 : Effect of foaming agent dosage on the expansion property and foaming temperature of thermally expanded microspheres
- Table 4 : Effect of monomer ratio on the expansion property and expansion temperature of thermally expanded microspheresDOI : https://doi.org/10.34314/jalca.v116i7.4336 En ligne : https://drive.google.com/file/d/1i1pJAJAQnAwYRmogNbezp7Ho-pyNhhl1/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36082
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Code-barres Cote Support Localisation Section Disponibilité 22869 - Périodique Bibliothèque principale Documentaires Disponible Preparation, characterization and application of silica metal oxide nanoparticles for leather coating / Sivaraj Sudhahar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 7 (07/2012)
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Titre : Preparation, characterization and application of silica metal oxide nanoparticles for leather coating Type de document : texte imprimé Auteurs : Sivaraj Sudhahar, Auteur ; Chandrasekaran Sivaraj, Auteur ; Sanjeev Gupta, Auteur Année de publication : 2012 Article en page(s) : p. 249-255 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Cuirs et peaux -- Finition
Dioxyde de silicium
Nanoparticules -- Synthèse
SiliceLa silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux.
La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...).
Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale.
Sol-gel, ProcédéIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Synthesis of silica sol-gel nanoparticles was carried out by the Stober’s process and the resulting products were used in leather finishing mixtures as a coating ingredient. The physical and chemical properties of the synthesized sol-gel nanoparticles were characterized by TEM, FE-SEM, EDAX, FT-IR, TGA and XRD. The surface morphology of the nanoparticle coated leathers were evaluated by AFM. The silica sol-gel nanoparticles-coated leather exhibited improved water spotting resistance, water vapor permeability, and increased adhesion values. Therefore, a conventional system of leather finishing has been upgraded by using silica sol-gel nanoparticles, especially in the base coat application. Note de contenu : - INTRODUCTION : Materials - Synthesis of silica sol-gel nanoparticles - Preparation of conventional base coat finish formulation, incorporating silica sol-gel nanoparticles, for shoe upper leather - Top coat formulation for silica sol-gel nanoparticles applied leather
- RESULTS AND DISCUSSION : Structural and morphological characterization of silica sol-gel nanoparticles. Field emission scanning electron microscope imaging and energy dispersive analysis - Edax peaks of nano SiO2, powder - Elemental composition analysis - Determination of applied physical properties for silica sol-gel nanoparticles coated leather - Wet and dry rub analysis - Measurement of lastometer - Water spotting resistance - Measurement of water vapour permeability - Measurement of finish adhesion - Subjective evaluation result for silica sol-gel nanoparticles coated leatherEn ligne : https://drive.google.com/file/d/1yubC3ga22nLwuxyQqMDtKU-C-dvukK0h/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15645
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Code-barres Cote Support Localisation Section Disponibilité 14063 - Périodique Bibliothèque principale Documentaires Disponible Preparation of antibacterial fatliquoring agents containing zinc oxide nanoparticles for leather industry / Ali Yorgancioglu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIV, N° 5 (05/2019)
PermalinkPreparation of cationic fluorinated polyurethane micro-emulsion and its application in leather finishing / Li Peizhi in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 94, N° 6 (11-12/2010)
PermalinkLes principes de la fabrication du cuir / Henry R. Procter / Exibook (2021)
PermalinkPermalinkProposed test for adhesion of finish to leather : Draft method IUF 470 (march 1988) in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 72 (Année 1988)
PermalinkQuelques aspects de l'évolution actuelle du matériel de tannerie particulièrement en vue du travail en continu / A. Martin in TECHNICUIR, (Années 1969-1970)
PermalinkQuelques aspects sur l'imprégnation et le finissage de cuirs à fleur corrigée / Roy Clément in REVUE TECHNIQUE DES INDUSTRIES DU CUIR, Vol. LXIV (Année 1972)
PermalinkRationalisation du séchage des peaux en cours de finissage / C. Tissot in TECHNICUIR, (Années 1969-1970)
PermalinkRecent advances concerning polyurethane in leather applications : an overview of conventional and greener solutions / Jize Liu in COLLAGEN AND LEATHER, Vol. 5 (2023)
PermalinkReducing the use of volatile organic compounds in the leather industry / Rosa M. Cuadros in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 1 (01-02/2016)
PermalinkReduction of Cr (VI) formation in leather with herbal extracts / Roza Mirzamuratova in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIX, N° 2 (02/2024)
PermalinkReduction of yellowing effect on leathers with UV absorber benzophenone-4 / Safiye Meric Acikel in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 1 (01-02/2016)
PermalinkRemarques sur le travail des petites peaux / H. Roth / Leverkusen [Allemagne] : Bayer (nd)
PermalinkRésines réticulables à froid dans les couches de base de finissage / Max Roque in REVUE TECHNIQUE DES INDUSTRIES DU CUIR, Vol. LXVI (Année 1974)
PermalinkRésines réticulables à froid dans les couches de base de finissage / M. Roque in TECHNICUIR, N° 10 (12/1973)
PermalinkPermalinkPermalinkPermalinkLe rôle du finissage dans la protection des cuirs face aux éléments extérieurs / J. Hillion in TECHNICUIR, N° 10 (12/1973)
PermalinkRole of natural binders in leather finishing : A comparative approach / Janani Venkatramani in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 6 (06/2022)
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