| Titre : |
Feeling the way forward : Developing UV-curable soft touch finishes |
| Type de document : |
texte imprimé |
| Auteurs : |
Lisa Spagnola, Auteur ; Jeffrey Klang, Auteur ; Manjuli Gupta, Auteur ; Xavier Drujon, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 40-45 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Essais (technologie)
Formulation (Génie chimique)
Oligomères
Plan d'expérience
Revêtements -- Séchage sous rayonnement ultraviolet
Toucher soft
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Soft-touch coatings are used across a wide range of markets. They are often based on 2-part polyurethanes. UV curing formulations were tested to produce similar coatings without the disadvantages of isocyanate cure. A range of haptic properties was eventually obtained. |
| Note de contenu : |
- How soft touch coatings are classified
- Technological challenges
- Key advantages of radiation curing
- Formulation variables in the experimental procedure
- Test procedures summarised
- Little relationship between feel and other properties
- Extreme cases studied to find relationships
- Additional acrylates extend range of properties
- Further formulation changes extend range of properties
- FIGURES : 1. Idealised two-part soft touch coating structure - 2. 'Extremes' selected from DDE for further analysis - 3. Range of properties in DDE formulations with low coating durability - 4. Range of properties in DDE formulations with higher coating durability - 5. Properties of UA6 as a function of crosslinker content, with UA5 formulation for comparison - 6. Properties of blends of UA7 as a function of crosslinker content, with UA4 formulation for comparison - 7. How feel can be tailored by adjusting oligomer type and crosslinker concentration
- TABLES : 1. Summary of test methods for soft touch coatings - 2. Storage modulus and Tg for selected formulations - 3. Feel vs durability for selected DDE 'extremes' - 4. Expanded DOE with selected oligomers |
| En ligne : |
https://drive.google.com/file/d/1CHQcFTJ52IGhh0DeKW1Obays7xhrcmwR/view?usp=drive [...] |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27822 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 2 (02/2017) . - p. 40-45
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