[article]
| Titre : |
Polyurea coatings and its versatile nature |
| Type de document : |
texte imprimé |
| Auteurs : |
Mukesh Kathalewar, Auteur ; Amey Bhogale, Auteur ; Suraj Mare, Auteur |
| Année de publication : |
2011 |
| Article en page(s) : |
p. 67-75 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Elastomères
Polyurée
Revêtements protecteurs
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Polyurea is an elastomer that is obtained by mixing two reactive components : an isocyanates component and an amine component. Two-component polyurea elastomeric coating systems are the newest technology to the protective coating industry. Polyurea coatings give exceptional physycal properties such as high hardness, flexibility, tear and tensile strength, chemical and water resistance ; which are even better compared to polyurethane and epoxy coatings. A major advantage of polyurea coatings is the fact thay they set within a matter of seconds and take just a few hours to cure through. This allows surfaces coated with polyurea to be reopened for use without any limitations after just 24 hours. Unlike other spray coatings, polyurea systems can also be applied in humid and low-temperature outdoor conditions.
Polyurea systems are used as spray-applied protective or wear coatings in various industrial applications, for example in the construction of tanks and industrial buildings, roads and bridges, in hard landscaping and in interior fitting. |
| Note de contenu : |
- POLYUREA CHEMISTRY : Raw materials - Aromatic based polyurea (1. Isocyanate - 2. Diluents) - Resin blend or amind blend side - Polyetheramines - Chain extenders - Aliphatic based polyurea - Additives - Isocyanate reaction with water - Diamine & carbonic acid derivative - Polyurea vs polyurethane - Epoxy vs polyurea - Development in polyurea (1. Polyaspartic ester based polyurea - 2. Silicone modified polyurea - 3. The use of UV stabilizers in aliphatic polyurea - 4. Polyurea using 2, 4'-MDI isocyanate isomers - 5. Colored polyureas - 6. Low-pressure applied polyurea) - Polyurea application - Polyurea addition - Myths - Application scope for polyurea (a. Building and construction - b. Infrastructure - c. Transport - d. Others). |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11873 |
in PAINTINDIA > Vol. LXI, N° 8 (08/2011) . - p. 67-75
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