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Influence of defoamers on the efficiency of waterborne coating systems / Wernfried Heilen in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 66, N° 829 (02/1994)
[article]
Titre : Influence of defoamers on the efficiency of waterborne coating systems Type de document : texte imprimé Auteurs : Wernfried Heilen, Auteur ; Otto Klocker, Auteur ; Jay Adams, Auteur Année de publication : 1994 Article en page(s) : p. 47-53 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimousse
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : Foam problems during production and application of waterborne systems are common. The reasons for the generation and stabilization of foam, and the types of foam in these systems, have been the subject of numerous discussions. Foam is generated and stabilized by the presence of surfactants commonly found in small concentrations (e.g., wetting agents and polymer emulsifiers). Destabilization of foam is achieved through the addition of substances which orient themselves at the air/liquid interface, resulting in a reduction of surface tension. This paper discusses the different types of foam, the phenomenon of foam generation, and the physical and chemical aspects of the technology and substances available to destabilize foam successfully. Note de contenu : - INTRODUCTION : Causes of foam - Foam stabilization mechanisms - Buoyancy
- DEFOAMING MECHANISMS : Defoamer formulations
- TEST METHOD FOR DEFOAMER EVALUATIONPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18604
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 66, N° 829 (02/1994) . - p. 47-53[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003463 - Périodique Bibliothèque principale Documentaires Disponible 003476 - Périodique Bibliothèque principale Documentaires Exclu du prêt Innovative multifunctional silicone additives for waterborne coatings and inks eliminate regulatory/performance trade-offs / Mustafa Mohamed in PAINTINDIA, Vol. LIX, N° 11 (11/2009)
[article]
Titre : Innovative multifunctional silicone additives for waterborne coatings and inks eliminate regulatory/performance trade-offs Type de document : texte imprimé Auteurs : Mustafa Mohamed, Auteur ; Juan Carlos Corcuera, Auteur Année de publication : 2009 Article en page(s) : p. 98-102 Langues : Anglais (eng) Catégories : Encre -- Additifs
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).Index. décimale : 667.9 Revêtements et enduits Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8327
in PAINTINDIA > Vol. LIX, N° 11 (11/2009) . - p. 98-102[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011952 - Périodique Bibliothèque principale Documentaires Disponible Intumescent coatings : truly functional coatings that save lives latest developments / Christophe Baude in DOUBLE LIAISON, N° 614 (12/2016)
[article]
Titre : Intumescent coatings : truly functional coatings that save lives latest developments Type de document : texte imprimé Auteurs : Christophe Baude, Auteur ; Maurille Secher, Auteur ; Cécile Fonteneau, Auteur ; Alan Fream, Auteur ; Jean-Marie Schmuck, Auteur Année de publication : 2016 Article en page(s) : p. 14-18 Langues : Anglais (eng) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique.
L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1.
C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple.
Couches minces
Essais accélérés (technologie)
Formulation (Génie chimique)
IgnifugeantsComposé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface.
Incendies -- Prévention
Intumescence (chimie)
Liants
Métaux -- Revêtements protecteurs
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
ThermogravimétrieIndex. décimale : 667.6 Peintures Résumé : In recent years, thin film intumescent coatings have become the preferred choice for the protection of structural steel, and have enjoyed significant growth on a global basis, because of their ability to provide cost-effective passive fire protection to structural steel, whilst at the same time maintaining the aesthetic qualities on the steel, which is being demanded by more and more architects and engineers. Note de contenu : - INTUMESCENT COATINGS : WHAT ARE THEY ? HOW DO THEY WORK
- THE IMPORTANCE OF THE RESIN BINDER IN INTUMESCENCE : European standards for fire protection coatings
- CURRENT BINDER TECHNOLOGY FOR WATERBORNE INTUMESCENT COATINGS
- DESIGN OF A NEW BINDER FOR WATERBORNE COATINGS
- NEW BINDER FOR WATERBORNE INTUMESCENT COATINGS
- EXPERIMENTAL : Testing protocol for evaluation of new binder
- FORMULATION APPROACH FOR NEW WATERBORNE BINDER : Water soak resistance - W conditions exposure - Y conditions exposure
- FIGURES : 1. Thermal gravimetric analysis (TGA) curves of new waterborne binder vs. best-in-class solventborne binder - 2. Thermal gravimetric analysis (TGA) curves of new waterborne binder vs. best-in-class solventborne binder - 3. Effect of accelerated aging (W conditions) on dry films - 4. Time/temperature curves for WB IC 02 vs VA/VV binder, before, and after accelerated exposure (Y conditions)
- TABLES : 1. Use categories as defined in EN 16623 - 2. Recipe structure waterbased intumescent formulationPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27442
in DOUBLE LIAISON > N° 614 (12/2016) . - p. 14-18[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18579 - Périodique Bibliothèque principale Documentaires Disponible 18634 - Périodique Bibliothèque principale Documentaires Disponible Investigation of effect of type of pigment/extender on the stability of high pigment volume concentration water-based architectural paint / Ritesh A. Bhavsar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 3 (05/2022)
[article]
Titre : Investigation of effect of type of pigment/extender on the stability of high pigment volume concentration water-based architectural paint Type de document : texte imprimé Auteurs : Ritesh A. Bhavsar, Auteur ; Avinash Sardesai, Auteur Année de publication : 2022 Article en page(s) : p. 919-930 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Charges (matériaux)
Concentration pigmentaire volumique
Diluants
Dispersions et suspensions -- Stabilité
Floculation
Pigments inorganiques
Potentiel zeta
Revêtements en bâtiment:Peinture en bâtiment
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : This article elucidates the effect of type of pigment/extenders viz. titanium dioxide (TiO2), magnesium silicate (steatite), calcium carbonate, dolomite, precipitated sodium magnesium aluminosilicates, hydrated and calcined aluminum silicates (kaolin) when used alone or in combination in the paint dispersions on their sedimentation stability. Accelerated heat age stability test was conducted as per ASTM D 1849. Wettability of pigment extenders were measured in terms of their contact angle using Washburn technique. Rheology viscosity curve and oscillatory amplitude sweep test are carried out to depict the structural properties, more precisely the extent of flocculation in the paint dispersion. From rheology viscosity curve, extent of residual flocculation is determined using Asbeck extrapolation method. Extent of total flocculation in the paint dispersion is estimated from cohesive energy density (Ec) using oscillatory amplitude sweep test. Energy of separation of particles in flocs (Esep) is also determined using yield point measurement. Attempt was made to correlate extent of flocculation present in paint dispersion with settling and syneresis observed during accelerated heat age stability test. It is observed that, the paint dispersions based on only TiO2, only hydrous kaolin and only precipitated sodium magnesium aluminosilicates are found to be quite stable whereas the dispersions based on only magnesium silicates and only calcined kaolin are found to be unstable. Paint dispersions based on carbonate extenders show syneresis and soft settling which is easily mixable. From the rheological study, it is identified that Ec is the most crucial parameter that correlates very well with the accelerated heat age stability test results of paint dispersion. Note de contenu : - EXTENT OF FLOCCULATION : Investigation of degree of residual flocculation using Asbeck extrapolation method - Energy of separation between the particles in a flocs (E sep) - Cohesive energy density (E c)
- EXPERIMENTAL WORK : Materials - Preparation of dispersion - Characterization
- RESULTS AND DISCUSSION : Effect of type of pigment/extenders on the stability of high PVC interior paint - Powder wettability - Rheological characterization - Effect of varying ratio of unstable to stable pigment and extenders on the stability of Paint-1
- Table 1 : Physico-chemical properties of pigments and extenders used in paint dispersion
- Table 2 : Key formulation ingredients of high PVC interior paint-1 and their respective experiments with individual pigment/extender at same volume solid content
- Table 3 : Summary of pH, zeta potential, stormer viscosity of paint dispersions before and after accelerated heat age stability test
- Table 4 : Material constant and powder contact angle with DI water and surfactant solution
- Table 5 : Infinite shear viscosity (η∞) and the extent of residual flocculation (m) as computed from Asbeck model, yield point (τ0) and energy of separation of particles in floccs (Esep), viscoelastic parameter G′ and critical strain (Υc) and cohesive energy density (Ec) is summarizedDOI : https://doi.org/10.1007/s11998-021-00568-9 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00568-9.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38086
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 3 (05/2022) . - p. 919-930[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23605 - Périodique Bibliothèque principale Documentaires Disponible Investigation of new open time extenders for low/zero-VOC latex paints and aqueous coatings / Zhengang Zong in COATINGS TECH, Vol. 10, N° 2 (02/2013)
[article]
Titre : Investigation of new open time extenders for low/zero-VOC latex paints and aqueous coatings Type de document : texte imprimé Auteurs : Zhengang Zong, Auteur ; Yi-Zhong Li, Auteur ; Jean-christophe Castaing, Auteur ; Dayne Swearer, Auteur Année de publication : 2013 Article en page(s) : p. 36-44 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Latex
Liants
Revêtements -- Additifs
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : With strict environmental legislation seeking to reduce the amount of volatile organic compounds (VOC), new latex binders are being developed with low glass transition temperatures, to be used in formulating low- and zero- VOC paints. Lower-VOC paints are expected to meet the same performance requirements as traditional paints. However, the open time or wet-edge time of low/zero-VOC aqueous coatings is a major challenge during application when cosolvents or coalescing agents are eliminated from the formulations.
In this study, a series of new additives was developed to extend the open time of low/zero-VOC binders and latex paints. The effects of this additive on the open time of low/zero-VOC waterborne paints with different binders were investigated. Factors related to open time, including viscosity, PVC, film thickness, and substrates, were studied. The results indicated that the additives are effective in extending open time by two to five times. In addition, other properties of low/zero-VOC paints such as freeze/thaw stability, film gloss, stain removal, tint strength, wet adhesion, and scrub resistance were evaluated.
Various techniques have been employed to characterize open time and wet-edge time. A new method was developed to characterize open time/wet-edge time and the film formation process. Correlations among film formation, physical properties, and coating performances are discussed.Note de contenu : - EXPERIMENTAL : Materials - Substrates - Instruments - paint formulations - Paint evaluation and properties measurements
- RESULTS AND DISCUSSION : Effects of the new additive on commercial low/zero-VOC paints - Correlation with open time of aqueous coatings - Paint Evaluation and properties measurements - A model study of open-time and film formation of latex bindersEn ligne : https://drive.google.com/file/d/1rbE10smNrczjyIMvj7MMGFbGjtXjnvuT/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17582
in COATINGS TECH > Vol. 10, N° 2 (02/2013) . - p. 36-44[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14699 - Périodique Bibliothèque principale Documentaires Disponible Iodinated thermal-fused polymer as a biocidal additive to commercial and chemical-resistant coatings / L. di Ionno in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 87, B4 (12/2004)
PermalinkPermalinkPermalinkPermalinkPermalinkLight stabiliser enhance colour protection / Everlight Chemical Industrial Corporation (Taipei, Taiwan) in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4625 (10/2016)
PermalinkPermalinkPermalinkLow-VOC combination metal drier developed for waterborne alkyds / Thomas Schoenbacher in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4591 (12/2013)
PermalinkPermalinkPermalinkPermalinkPermalinkPermalinkMatting agent for waterborne coatings in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4525 (06/2008)
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