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Specific surface & mill base concentration / Mukund Hulyalkar in PAINTINDIA, Vol. LXVIII, N° 12 (12/2018)
[article]
Titre : Specific surface & mill base concentration Type de document : texte imprimé Auteurs : Mukund Hulyalkar, Auteur Année de publication : 2018 Article en page(s) : p. 98-100 Langues : Anglais (eng) Catégories : Agents mouillants
Dispersions et suspensions
PigmentsIndex. décimale : 667.2 Colorants et pigments Résumé : Pigments having higher specific surface area, needs more efforts for dispersion and generally give higher viscosity. Hence larger energy for dispersion is required. Therefore specific surface area of the pigment is an important parameter to decide the optimum mill-base pigment concentration during the dispersion process. Stabilization of dispersion of pigments having higher specific surface area needs extra care.
Quantities of the wetting agents estimated on the weight of pigment, generally do not hold good for different pigment types. This is mainly due to the fact that the different pigment grades have different specific surface area. To obtain better efficiency, wetting and dispersing agents are therefore estimated on the basis of the specific surface area.Note de contenu : - Fig. 1 : Conventional wetting and dispersing agent types
- Fig. 2 : HLB valueEn ligne : https://drive.google.com/file/d/1w2i1L3r94wB0jMBSqeSxC1MQhfaOL7Gn/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31937
in PAINTINDIA > Vol. LXVIII, N° 12 (12/2018) . - p. 98-100[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20674 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Sticking to polymers : Wetting agent and substrate interactions in waterborne finishes for the automotive industry Type de document : texte imprimé Auteurs : Rainer Erhardt, Auteur ; Sascha Oestreich, Auteur Année de publication : 2016 Article en page(s) : p. 22-27 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésion
Agents mouillants
Automobiles -- Revêtements:Automobiles -- Peinture
Essais (technologie)
Fluoropolymères
Formulation (Génie chimique)
Matières plastiques -- Revêtement:Matières plastiques -- Peinture
Polyacryliques
Revêtements en phase aqueuse:Peinture en phase aqueuse
Tension superficielleIndex. décimale : 667.9 Revêtements et enduits Résumé : Good substrate wetting may be particularly difficult to achieve on plastic substrates, which are increasingly used in the automotive industry. Tests with a range of different types of wetting agents showed pronounced and possibly unexpected differences. A fluorinated acrylic polymer gave the best overall results. Note de contenu : - Surface defects and substrate wetting issues
- Main wetting agent types and their key properties
- Application technique may effect surfactant choice
- Wetting agents show pronounced differences in foaming
- Test formulation and application details
- Test procedures summarised
- Additional tests confirm best productEn ligne : https://drive.google.com/file/d/1-0Sio43PQ9ebe85PG82tq_NrnYYbBERw/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26460
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6 (06/2016) . - p. 22-27[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18147 - Périodique Bibliothèque principale Documentaires Disponible
[article]
Titre : Switchable for stability : New additives react to changes during the drying process and actively reduce the exposure of their hydrophilic structural elements Type de document : texte imprimé Auteurs : Sabrina Stopka, Auteur ; Jörg Hinnerwisch, Auteur ; Andreas Okkel, Auteur ; Carsten Erkens, Auteur ; Sabine Stelz, Auteur Année de publication : 2021 Article en page(s) : p. 34-38 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents dispersants (chimie)
Agents mouillants
Anticorrosion
Bois -- Revêtements
Humidité -- Absorption:Eau -- Absorption
Résistance aux taches
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : Hydrophilic structural elements of wetting and dispersing additives can increase the water sensitivity of cured paint films based on aqueous coating systems. Switchable wetting and dispersing additives significantly reduce water absorption and improve the stain resistance and the anti-corrosive properties of the coating film. Note de contenu : - Wetting and dispersing additives reduce water resistance
- Water absorption and anti-corrosive properties
- Stain resistance of aqueous wood coatingsEn ligne : https://drive.google.com/file/d/1GNORJjQ2YeH211kcOAX7P54wehsfuZbE/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36671
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 12 (12/2021) . - p. 34-38[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23101 - Périodique Bibliothèque principale Documentaires Disponible Tailored and resistant / Philippe Favresse in PAINTINDIA, Vol. LXIII, N° 11 (11/2013)
[article]
Titre : Tailored and resistant : More corrosion resistance in aqueous coatings through new wetting and dispersing additives Type de document : texte imprimé Auteurs : Philippe Favresse, Auteur ; Frank Kleinsteinberg, Auteur ; Katrin Roland, Auteur ; Patrick Glöckner, Auteur Année de publication : 2013 Article en page(s) : p. 60-63 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents dispersants (chimie)
Agents mouillants
Anticorrosifs
Anticorrosion
Copolymères greffés
Essais (technologie)
Formulation (Génie chimique)
Polyaddition
Polymérisation radicalaire controlée
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : Wetting and dispersing additives are indispensable for the production of high quality pigment concentrates with a high color strength and adequate storage stability. However, especially with aqueous coatings, the resistance of corresponding films can deteriorate because of their hydrophilic structure.
The aim of this study was to develop polymeric wetting and dispersing additives for aqueous pigment concentrates which display no significant negative impact on the corrosion protection of aqueous coatings. The polymers were produced using various polymerization processes and comparatively evaluated.Note de contenu : - Wetting and dispersing additives enable a productive dispersion process
- Investigated wetting and dispersing additives
- Production of the pigment concentrates
- Test coatings
- Test methods
- Discussion of the results : Rheological properties of the pigment concentrates
- Coloristic properties at the highest level
- A new benchmark for corrosion resistance
- Reduced water absorption improves resistancePermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20336
in PAINTINDIA > Vol. LXIII, N° 11 (11/2013) . - p. 60-63[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15933 - Périodique Bibliothèque principale Documentaires Disponible The best for red and yellow / Frank Kleinsteinberg in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 210, N° 4663 (08/2020)
[article]
Titre : The best for red and yellow Type de document : texte imprimé Auteurs : Frank Kleinsteinberg, Auteur ; Markus Vogel, Auteur Année de publication : 2020 Article en page(s) : p. 15-16 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Additifs
Agents dispersants (chimie)
Agents mouillants
Caractérisation
Jaune
Oxyde de fer
Pigments inorganiques
Potentiel zeta
Rhéologie
Rouge (couleur)
Stabilité au stockage
Taille des particulesIndex. décimale : 667.2 Colorants et pigments Résumé : The author discusses a new additive technology for waterborne iron oxide pigment concentrates.
In decorative coatings, the use of pigment concentrates is a modem and flexible wayto produce coloured paints. Especially in waterborne applications, these concentrates have to be suitable for a broad range of different binder technologies. Because of that, the concentrate formulations are usually free of binders and feature a broad compatibility. Furthermore, the demands in terms of storage stability, colour strength and cost efficiency are very high. These demands are addressed directly to the used additive technology. The additive has to induce outstanding viscosity reduction to achieve the highest pigment loads and the most economic grinding. It has to stabilise the pigments over a long period of time without any change in viscosity and it has to develop maximum colour strength to avoid any waste of expensive pigments.
The most important pigment class in decorative coatings are the iron oxides. Iron oxides are not difficult to wet because of their shape. Iron oxide yellow tends to give dilatant rheology, which can be a disaster when it comes to automatically dosing in a dispensing machine. Iron oxide red, on the other hand, tends to increase the viscosity of pigment concentrates over time.
This paper elucidates to different structures of wetting and dispersing additives, which could be used in waterborne, binder-free pigment concentrates for iron oxides and their performance. It is focused on the stability and the wetting of the pigments, which are reflected by the viscosity reduction, the storage stability of the pigment concentrates and the colouristic properties. For the characterisation of the wetting behaviour and the dispersing efficiency, the zeta potential has been used. In the end, advice and guidelines for formulating iron oxide pigment concentrates will be given.Note de contenu : - Pigment concentrate technology
- Pigment dispersion process
- Electrostatic stabilisation - Zeta potential
- Steric stabilisation
- Discussion of the results
- Particle size andhiding power
- Viscosity and stability
- Zeta potentialEn ligne : https://drive.google.com/file/d/1y0_JPiIZxLA8SxrNLDp3PBsmcTfHJWJH/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34450
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 210, N° 4663 (08/2020) . - p. 15-16[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21904 - Périodique Bibliothèque principale Documentaires Disponible Third generation additives / Janos Hajas in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4524 (05/2008)
PermalinkPermalinkPermalinkWetting additive for water based pressure sensitive adhesives / Gerald Marinzulich in ADHESION - ADHESIVES + SEALANTS, N° 9/2005 (09/2005)
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