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[article]
Titre : Bringing surfaces under control : How to optimise coating surfaces by using specialFy modified siloxanes Type de document : texte imprimé Auteurs : Heike Semmler, Auteur ; Roger Reinartz, Auteur ; Ingrid K. Meier, Auteur ; K. Michael Peck, Auteur Année de publication : 2020 Article en page(s) : p. 16-21 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bois -- Revêtements protecteurs
Formulation (Génie chimique)
Jaune
Pigments
PolydiméthylsiloxaneLe polydiméthylsiloxane —[O-Si(CH3)2]n—, ou poly(diméthylsiloxane) selon la nomenclature systématique, communément appelé PDMS ou diméthicone, est un polymère organominéral de la famille des siloxanes souvent présent dans les shampoings. On l'y ajoute pour augmenter le volume des cheveux mais il peut également aller boucher les pores du cuir chevelu et rendre les cheveux gras. C'est une des raisons pour lesquelles se laver les cheveux tous les jours est très déconseillé avec un shampooing contenant des silicones.
Il existe également de l'amodiméthicone, qui est un dérivé du diméthicone.
Le polydiméthylsiloxane est un additif alimentaire (E900), utilisé comme antimoussant dans les boissons (Coca-Cola BlāK).
La chaîne de poly(diméthylsiloxane) forme également la structure de base des huiles et des caoutchoucs silicones.
Résistance à l'abrasion
Revêtements -- Propriétés mécaniques
Revêtements en phase aqueuse -- Additifs
Revêtements organiques
Vernis en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : Surface control additives can be engi-neered to provide a range of benefits in water-borne coating formulations. This article describes a study aimed at clari-fying some general structure-property relationships. Note de contenu : - Benefits of siloxanes
- Siloxanes and slip
- Recoatability is a problem
- Experimental : Design of surface control additives - Properties in two wood-coating formulations - Test of emulsion-type additives in a clearcoat formulation - Better blocking and scratch resistance - Test of 100 % active matter additives in a pigmented formulation - Blocking - Cross-cut adhesion
- Organo-modified siloxanes as versatile toolbox for surface effects
- Table 1 : Characteristics of siloxane-based surface control additives used in this study
- Table 2 : Water-borne self-crosslinking modified acrylic clear wood-coating based on "NeoCryl XK-12"
- Table 3 : Performance of surface confrol additives when post-added fo a wafer-borne self-crosslinking modified acrylic wood coating ("NeoCryl XK-12")
- Table 4 : Pigmented water-borne acrylic wood coating based on "Acronal LR 9014" and Pigment Yellow concentrate
- Fig. 1 : Scratch resistance testing and ratings
- Fig. 2 : Comparative effects of surface control additives on the blocking properties of a pigmented water-borne acrylic wood coating
- Fig. 3 : Cross-cut areas of panels that were coated twice with pigmented water-borne acrylic wood coatings containing 0.5 wt % surface control additivesEn ligne : https://drive.google.com/file/d/150Acf66umSHnqwoe2lBQgmhz4Wnp-6Va/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34288
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6 (06/2020) . - p. 16-21[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21779 - Périodique Bibliothèque principale Documentaires Disponible Development of high throughput method for evaluating the effect of additives on foam stabilization in clear coatings / Jeff Anderson in COATINGS TECH, Vol. 10, N° 1 (01/2013)
[article]
Titre : Development of high throughput method for evaluating the effect of additives on foam stabilization in clear coatings Type de document : texte imprimé Auteurs : Jeff Anderson, Auteur ; Rebecca Ortiz, Auteur Année de publication : 2013 Article en page(s) : p. 30-32 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimousse
Cisaillement (mécanique)
Surfactants
Vernis en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : One of the more challenging aspects of formulating water-based coatings is in the selection of a foam control additive package and evaluating its effect on the ability of the formulation to resist and release entrained air. Current laboratory methods of analyzing defoaming efficency can be complicated, time consuming, and typically require significant volumes of materials for testing. The novel method presented here allows for small volume, high throughput analysis of the effect of foam control additives and other surfactants on the ability of a coating formulation to resist air entrainment. The method additionally allows for use of "shear rate" and "time of recovery" as process variables that can be used to simulate a diverse range of conditions that a coating may experience during the manufacturing or application process. Furthermore, the unique approach of using color as a comparative tool to evaluate the relative amount of air in the liquid coating formulations is shown to be an effective means of analysis. Note de contenu : - BRIEF DESCRIPTION OF FOAM CONTROL ADDITIVES
- CONVENTIONAL HIGH SHEAR DEFOAMER EVALUATION METHOD
- LOW SHEAR METHODS
- EXPERIMENTAL DESIGN AND SAMPLE PREPARATION
- PROPOSED HTR WORKFLOW - PICA II
- IMAGE ANALYSIS
- RESULTS AND DISCUSSION : High throughput defoaming method : proof of concept - Measurement of liquid height as a proxy for density - Measurement of color to evaluate defoameer effectiveness - Reproducibility of the controlEn ligne : https://drive.google.com/file/d/1Ux6QcwWejNHsirHgm0jATvGyE5qYTw6j/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17432
in COATINGS TECH > Vol. 10, N° 1 (01/2013) . - p. 30-32[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14603 - Périodique Bibliothèque principale Documentaires Disponible
[article]
Titre : Difficult substrates well wetted : A low-foaming, low-VOC wetting agent that contains no APEOs Type de document : texte imprimé Auteurs : Vimal Saini, Auteur ; Wolfgang Fuchs, Auteur ; Elke Piron, Auteur ; Carlos Feita, Auteur ; Udo Schonhoff, Auteur ; Frank Abschlag, Auteur Année de publication : 2019 Article en page(s) : p. 30-36 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Dispersions et suspensions
Mouillage (chimie des surfaces)
Polyacryliques
Revêtements organiques
Vernis en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : As environmental regulations keep getting tighter and eco-friendly coatings become more popular, the time is ripe for a low-VOC wetting agent that is free of alkylphenol ethoxylates. It is designed to maximise wetting on even difficult-to-wet sub-strates and in a Ovide range of applications, such as aqueous coatings, TiO2 slurries, pigment concentrates, adhesives and inks. Note de contenu : - Wetting basics
- Challenging water-bornes
- Experimental : Samples - Lower surface tension - Smaller contact angle - Look - No foam !
- Evaluation 1 : acrylic dispersion clearcoat
- Evaluation 2 : White wood-coating based on self-crosslinking acrylic dispersion
- Improved surface wetting - Better blocking resistance
- Good pore-filling
- Relative overall performance
- Substrate wettability in OPV ink and adhesive systems
- Fig. 1 : Contact angles formed by sessile liquid drops on a smooth homogeneous surface
- Fig. 2 : Static surface tension of aqueous solutions conhaining 0.3 wt.% wetting agent
- Fig. 3 : Evolution of advancing contact angle with 0.3% aqueous solutions of wetting agents on untreated polypropylene plastic and on glass substrate
- Fig. 4 : Foaming behaviour in aqueous solution
- Fig. 5 : Brush-applied clearcoat on Leneta test chart
- Fig. 6 : Wetting performance in white wood coating based on self-crosslinking acrylic dispersion
- Fig. 7 : Improved blocking resistance with "Supread 2059"
- Fig. 8 : Pore-filling ability via spray application (scale in all samples - A mm, except reference 3 : 3 mm
- Table 1 : Transparent clearcoat based on acrylic dispersion
- Table 2 : Wood coating based on self-crosslinking acrylic dispersion
- Table 3 : White window paint test formulation
- Table 4 : Overall application performanceEn ligne : https://drive.google.com/file/d/1lnxpVc1v-ODQoDM0yd7J0cD1M50ClE5P/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33166
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 11 (11/2019) . - p. 30-36[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21296 - Périodique Bibliothèque principale Documentaires Disponible Durable water-borne wood coatings / Peter Greenwood in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8 (07-08/2018)
[article]
Titre : Durable water-borne wood coatings : Adding silane-modified colloidal silica enhances performance of water-borne clear coatings Type de document : texte imprimé Auteurs : Peter Greenwood, Auteur Année de publication : 2018 Article en page(s) : p. 40-47 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bois -- Revêtements protecteurs
Bois -- Vernis
Dureté (matériaux)
Epoxydes
Essais de résilience
Essais dynamiques
Formulation (Génie chimique)
Gel de silice
Polymères à silane modifié
Résistance à l'abrasion
Vernis -- Propriétés mécaniques
Vernis en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : When making the switch from solvent-borne to water-borne coatings the goal is to not compromise the function and performance of wood coatings. The effect of using epoxy silane-modified colloidal silica in water-based clear coatings on open time and anti-blocking, sanding and mechanical properties was investigated. Note de contenu : - Improving mechanical properties
- Lowering VOC
- Results
- Aesthetic properties not compromised
- Significant enhancement of block resistance
- Beneficial for sanding properties
- Keeping the solvent-borne look
- Significant improvements in mechanical properties in 2-pack systems
- Well distributed silica particles are beneficial
- The effect on abrasion resistance is formulation dependent
- Extended open time
- Influence on open time at constant viscosity
- Influence on open time for parquet lacquer formulations
- Fig. 1 : Sandability - sandpaper P180 and P 240
- Fig. 2 : Grain accentuation - Enhancement of grain structure by wood lacquers. 1-K water-based lacquer formulation N° 7 with and without 20% SiO2 addition of epoxy-silane modified colloidal silica
- Fig. 3 : Persoz hardness as a function of coating composition and drying time at ambient temperature for formulation N° 8
- Table 1 : Gloss and haze
- Table 2 : Block resistance results for clear 1-pack acrylic formulations
- Table 3 : Taber abrasion resistance - weight loss mg.
- Table. 4 : Open time - Influence of colloidal silica on open time at constant solid contents. Open time by brush method (ASTM D7488) and drying time recorder (ASTM D5895)
- Table 5 : Open time for PUD parquet lacquer formulationsEn ligne : https://drive.google.com/file/d/1QwITcDE_hsQMUnA0CAZXfo0ux5JQlnX5/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30838
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 7-8 (07-08/2018) . - p. 40-47[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20098 - Périodique Bibliothèque principale Documentaires Disponible Easy matting with high resistance / Bodo Essen in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 211, N° 4670 (08/2021)
[article]
Titre : Easy matting with high resistance Type de document : texte imprimé Auteurs : Bodo Essen, Auteur ; Hubert Oggermüller, Auteur Année de publication : 2021 Article en page(s) : p. 16-19 Langues : Anglais (eng) Catégories : Agent mattant
Bois -- Revêtements
Formulation (Génie chimique)
Polyacryliques
Vernis en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : Dispersion-based coats are becoming increasingly popular as efficient, versatile and environmentally friendly coating materials with low VOC emissions. A new slurry-based matting agent opens up possibilities to withstand and overcome existing drawbacks of classical powder-based silica matting agents, particularly in clear coatings for wood.
The process of matting dispersion-based clear coatings while still maintaining both excellent film appearance and excellent resistance properties is sometimes difficult, especially when using binder emulsions with a higher minimum film formation temperature and glass transition temperature. Furthermore, when it cornes to dealing with traditional matting agents, there are significant disadvantages presented by their form, which are mostly powder-based.Note de contenu : - Formulation variations and test design
- First promising results
- Optical properties must be maintained
- Matting meets resistance
- Beneficial property composition composition
- Overall performance benefits
- Table 1 : Base formulation of clear wood coatingEn ligne : https://drive.google.com/file/d/1R19UkxgGcJpe9UW5Af0PKTnrSuKydLP4/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36132
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 211, N° 4670 (08/2021) . - p. 16-19[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22872 - Périodique Bibliothèque principale Documentaires Disponible Effect of structure-controlled aluminum silicate nanofiller on surface properties of emulsion coating films / Fumihiko Ohashi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 1 (01/2022)
PermalinkFine-tuning coating surface control through the use of modified siloxanes / Ingrid K. Meier in COATINGS TECH, Vol. 17, N° 3 (03/2020)
PermalinkHigh molecular weight silicone emulsions as surface lubricating additives / Ogul Arseven in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4595 (04/2014)
PermalinkHow to optimize coating surfaces by using specialty modified siloxanes / Heike Semmler in SURFACE COATINGS INTERNATIONAL, Vol. 104.2 (03-04/2021)
PermalinkImproving weather resistance, touch feel and scratch resistance / Mouhcine Kanouni in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 207, N° 4629 (03/2017)
PermalinkNeuburg siliceous earth in water-based acrylic clear coats for wood : Part 2 / Hubert Oggermüller in SURFACE COATINGS INTERNATIONAL, Vol. 100.4 (08-09/2017)
PermalinkNeuburg siliceous earth in water-based acrylic clear coats for wood : part I / Hubert Oggermüller in SURFACE COATINGS INTERNATIONAL, Vol. 100.3 (06-07/2017)
PermalinkNew waterborne coatings formulations with liquid EPDM dispersion / Gregory J. Brust in COATINGS TECH, Vol. 18, N° 8 (08/2021)
PermalinkNo compromise on performance / Milena Wundlechner in EUROPEAN COATINGS JOURNAL (ECJ), N° 10 (10/2021)
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