[article]
| Titre : |
Balancing performance of slip/mar additives using a high throughput approach |
| Type de document : |
texte imprimé |
| Auteurs : |
Mark Langille, Auteur ; Aslin Izmitli, Auteur ; Tian Lan, Auteur ; Akanksha Agrawal, Auteur ; Chun Liu, Auteur ; Kevin Henderson, Auteur ; Yujie Lu, Auteur |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 52-56 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Bois -- Revêtements
Brillance (optique) -- Mesure
Effet antidérapant
Frottements (mécanique)
Rayures
Résistance à l'abrasion
Revêtements -- Additifs:Peinture -- 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 |
| Résumé : |
Additives formulating can be resource intensive and time con-suming to paint manufacturers due to the plethora of ingredient combinations and interactions that affect performance properties. These challenges may inhibit the efficacy of selected additives, which are particularly important in low-VOC formulations to address foam control, water sensitivity, and general surface properties. Silicone additives in particular are disproportionately influential in impacting film properties at low use levels given the materials distinct chemistry. High throughput methodologies have been developed to screen and identify top performing additives candidates to address desired performance targets. The use of slip/mar additives has been a recent area of focus, with high throughput methods aiding in the exploration of additive impact on properties that include friction coefficients, mar and abrasion resistance, hardness, surface defects, and clarity. This work addresses the development of these methods and identifies top classes of silicone chemistries to balance desired film performance in wood coatings formulations. |
| Note de contenu : |
- Fig. 1 : The formation of a mar or scratch on a coating
- Fig. 2 : The surface morphology of a coating damaged with increasing force, showing the first indications of mar and scratch damage
- Fig. 3 : Instrument for testing mar resistance of coatings as recommended in ASTM D5178
- Fig. 4 : Average kinetic friction coefficient of coatings with various slip/mar additives
- Fig. 5 : Average static friction coefficient of coatings with various slip/mar additives
- Fig. 6 : Mar resistance of coatings with various slip/mar additives
- Fig. 7 : Scratch resistance of coatings with various slip/mar additives
- Fig. 8 : Gloss measurements of coatings formulated with various slip/mar additives |
| En ligne : |
https://drive.google.com/file/d/1zGhAxQ5VsZaMsch-2u_Bbf4r8WcgOVvv/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30626 |
in COATINGS TECH > Vol. 15, N° 5 (05/2018) . - p. 52-56
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Balancing performance of slip/mar additives using a high throughput approach in COATINGS TECH, Vol. 15, N° 5 (05/2018)
