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Effect of mixed metal pretannage with zinc and titanium plus masking agents / Shan Cao in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 99, N° 3 (05-06/2015)
[article]
Titre : Effect of mixed metal pretannage with zinc and titanium plus masking agents Type de document : texte imprimé Auteurs : Shan Cao, Auteur ; Baozhen Cheng, Auteur ; Bing Liu, Auteur ; Xiu He, Auteur Année de publication : 2015 Article en page(s) : p. 120-123 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents de tannage
Agents masquants
Sulfate de titane
Sulfate de zinc
Tannage minéralTannage dans lequel interviennent différents minéraux. Le plus répandu est le tannage aux sels de chrome, mais aussi à l’aluminium
Wet-white (tannage)Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : This paper focuses on the effect of masking agents and tanning with zinc and zinc-titanium metal complexes. Sodium formate, sodium acetate, sodium citrate and sodium tartrate were used as masking agents. The best masking condition was chosen corresponding to the highest shrinkage temperature. Zinc sulfate and titanium sulfate, in different concentrations, were chosen as tanning agents in mixed-tanning experiments. The highest shrinkage temperature of the wet-white was 77°C, and the attendant zinc content in its leather was 3.63%. After retannage with chrome powder, the shrinkage temperature of the resultant leather increased as expected, and reached 96°C. The wet-white was successfully split which tend to the use of non-chrome pre-tanning, the finished leather was able to meet the requirements. Note de contenu : - EXPERIMENTAL PROCEDURES : Equipment - Materials - Preparation of measuring reagents - Preparation of mixed-metal tanning agents
- EXPERIMENTAL PROCEDURE : Influence of masking agents zinc tanning - Zinc-titanium mixed tanning
- RESULTS AND DISCUSSION : Influences of masking agents on zinc tanning - Effect of mixed zinc-titanium tanning - Effect on retanning of the mixed metal tanning wet-whiteEn ligne : https://drive.google.com/file/d/1MakJVyW6_eI8GMNg4NAJcxzaaoH6XVp0/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24255
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 99, N° 3 (05-06/2015) . - p. 120-123[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17271 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Look - No biocides : Dispersible polymer powder binders for wall paints Type de document : texte imprimé Auteurs : Stefan Baueregger, Auteur ; Lada Bemert, Auteur Année de publication : 2021 Article en page(s) : p. 20-25 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents masquants
Charges (matériaux)
Dioxyde de titane -- Suppression ou remplacement
Epaississants
Formulation (Génie chimique)
Liants
Opacifiants
Pigments
Revêtement mural:Peinture murale
Revêtement poudre -- Additifs:Peinture poudre -- Additifs
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
RhéologieIndex. décimale : 667.9 Revêtements et enduits Résumé : A new product line based on dispersible polymer powders wazs recently launched that allows manufacturers to produce interior wall paints in powder form. The technology does not require the addition of biocides and offers key advantages when it comes to storing and transporting paints. Note de contenu : - Water-borne paints are energy-intensive
- And problematic to transport and store
- Polymer powders offer formulation flexibility
- Putting the paint together
- Fillers and pigments
- Wetting and dispersing agents
- Thickeners
- Selection of binders
- Properties of powder paints
- Hiding power
- Wet scrub resistance
- Alternatives to titanium dioxide
- When to add water - You choose
- Easier storage and transport
- Experimental : Hiding power - Wet scrub resistance - Brookfield viscosity
- Fig. 1 : "Nexiva"-based powder paint samples coloured with Hostaperm pigments from Clariant
- Fig. 2 : Rheology profiles of "Nexiva"-based powder paints (Composition N° 1)
- Fig. 3 : Hiding power of "Nexiva"-based powder paints (Composition N° 1), shown as a contrast ratio at 7 m2/L, was achieved by using 5 wt. % or 15 wt. % titanium dioxide (Kronos 2190).
- Fig. 4 : Rheology profiles of "Nexiva"-based powder paints (Composition N° 1), shown as a loss of thickness in micrometers over 200 scrubbing cycles. Clas 1 is achieved using 15 wt. % of "Nexiva CT 115' binder incombination with 0.3 % Ca(OH)2 Classes 2 and 3 contain 12 wt. % and 9 wt. % binder respectivelyEn ligne : https://drive.google.com/file/d/1iP8YWcq6UhZEb8YzqFyAHDJr5cSwxNuW/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35848
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 3 (03/2021) . - p. 20-25[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22757 - Périodique Bibliothèque principale Documentaires Disponible Tannage with aluminium salts. Part II. Chemical basis of the reactions with polyphenols / R. L. Sykes in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 64, N° 2 (03-04/1980)
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Titre : Tannage with aluminium salts. Part II. Chemical basis of the reactions with polyphenols Type de document : texte imprimé Auteurs : R. L. Sykes, Auteur ; R. A. Hancock, Auteur ; S. T. Orszulik, Auteur Année de publication : 1980 Article en page(s) : p. 32-37 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents masquants
Collagène
Polyhydroxyaryle
Polyphénols
Sels d'aluminium
Tannage minéralTannage dans lequel interviennent différents minéraux. Le plus répandu est le tannage aux sels de chrome, mais aussi à l’aluminiumIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : To obtain aluminium tannages with shrinkage temperatures in excess of 100'c by the use of phenolic masking agents it has been found necessary to use trihydroxy diaryl compounds. The location of the hydroxy groups in the aryl ring is important in determining hydrothermal stability of the resultant leather.
The mechanism of the reaction has been studied by means of chromatography, ionophoresis, IR spectroscopy-some involving deuterium exchange, and potentiometry. From these a speculative mode of reaction involving multipoint coordination and hydrogen-bonding between the basic polyphenol aluminium complex and collagen has been put forward.Note de contenu : - Section 1. Experimental tannages
- Section 2. Chemistry of the collagen aluminium polyhydroxyaryl systemEn ligne : https://drive.google.com/file/d/1Ye6cK94dtEX7u8EQROtfpFkGwkid8C4r/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34130
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 64, N° 2 (03-04/1980) . - p. 32-37[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007127 - Périodique Bibliothèque principale Documentaires Disponible