| Titre : |
Development of interpenetrating network of urethane/acrylic emulsion for high performance coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Pradeep T. Gadekar, Auteur ; K. Krishnaraj, Auteur ; R. Mathanrajan, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 127-138 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
'Matériau revêtement' 'Peinture émulsion' Liant 'Réseau polymère interpénétré' 'Uréthanne polymère' Polyacryliques Feuil 'Propriété physique' mécanique' Dureté 'Absorption d'eau' Distribution dimension particule' |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The Interpenetrating Network (IPN) of urethane/acrylic emulsion polymer is developed by incorporating polyurethane dispersion (PUD) at various stages of acrylic emulsion polymerisation. The selection of initiator system is important for such a development. These developed IPN emulsions of urethane/ acrylic system were compared with plain acrylic emulsion and a physical blend of plain acrylic emulsion with two types of PUD, i.e. aliphatic urethane polymer and self crosslinking aliphatic urethane polymer with respect to mechanical properties of film, particle size distribution and water resistance. All the developed IPN emulsions were evaluated in a paint formulation for mechanical properties, chemical properties and accelerated weathering properties. They were also compared with paints based on plain acrylic emulsion and physical blends of plain acrylic emulsion with both the PUDs. |
| Note de contenu : |
- Polyurethane dispersions
- EXPERIMENTAL : Preparation of plain acrylic emulsion - Preparation of IPN of urethane/acrylic emulsion polymers - Preparation of physical blend of PUD and acrylic emulsion polymers - Preparation of paint - Paint testing
- RESULTS AND DISCUSSION : Initiator selection for development of IPN of urethane/acrylic emulsions - Influence of urethane/acrylic IPNs on development of hardness as o function of time- Particle size distribution of emulsions - % Water absorption of emulsion films - Paint study - Mechanical properties - Chemical properties - Accelerated weathering test |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12519 |
in PAINTINDIA > Vol. LI, N° 2 (suppl.) (02/2001) . - p. 127-138
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