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Making a splash / Ulrike Maassen in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 192, N° 4453 (06/2002)
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Titre : Making a splash Type de document : texte imprimé Auteurs : Ulrike Maassen, Auteur ; Thorsten Roloff, Auteur Année de publication : 2002 Article en page(s) : p. 20-22 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Diluants
Hydrophobie
Polyols
Polyuréthanes
Résistance à l'hydrolyseIndex. décimale : 667.9 Revêtements et enduits Résumé : The authors explain why the use of hydrophobic polyols can achieve better surface performance in coating and flooring applications.
Oleochemical polyols are spacial polyfunctional alcohols based on natural vegetable oils. They offer alternatives to higher hydrophilicity petrochemical-based polyols.
Because they are derivatives of vegetable triglyceride oils, they retain the advantages of classical oil paints and alkyd resins. But because of their low viscosity, they offer a base for solvent-free, full solids coating systems. As so-called reactive diluents, they are additionally able to replace solvents in coatings by forming part of the polymer film after curing instead of evaporating as solvent do.Note de contenu : - Building polyurethanes
- Oleochemical polyols
- Hydrophobic properties
- Coating applications
- Hydrolysis resistance
- FIGURES : 1. Bad surface due to CO2 formation - 2. Polyurethane reaction with different polyols with presence of water - 3. Refinement of natural oils - 4. Carbon dioxide evolution of different polyol types - 5. Typical multilayer flooring construction - 6. Resistance of oleochemical polyether/-ester against acid and alkaline : Polyol 1, cured with polymer-MDI, 31% NCO
- TABLE : Guide formulation for self-levelling flooringPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28065
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