[article]
| Titre : |
Interpenetrating polymer networks for coatings : properties, characterization, applications and current status |
| Type de document : |
texte imprimé |
| Auteurs : |
T. Amandaraj, Auteur ; P. S. Mohan, Auteur ; Smt. Krishnan, Auteur ; M. Raghavan, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 43-54 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Caractérisation
Formulation (Génie chimique)
Liants
Réseaux polymères
Revêtements:Peinture
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
As the protective mechanism of an organic coating is largely dependent on its polymer used as binder, blending of polymers has long been practised to improve end use properties. Polymer alloys, in particular interpenetrating polymer networks [IPNs], offer a variety of improved coating properties. IPNs represent a mode of blending of two or more polymers to produce a mixture in which the phase separation is not as extensive as in polymer blends. The combination of varied chemical types of polymeric networks in different proportions, often resulting in different controlled morphologies, has produced IPNs with synergistic behavior. The physical properties of the IPNs fall into two classes : the first class contains those properties, which vary monotonously as the composition is varied from one pure network to the other. The second class of properties includes those which at least in certain IPNs can exhibit maxima or minima at an intermediate composition between the two networks. IPNs offer a broad range of applications including protective coatings. IPN technology has surprisingly covered almost all sorts of applications and, in the coatings areas also, quite a good number of commercial products based on full, semi- and pseudo-IPNs are already available in the market, although they are rarely identified as such. In this paper, the noteworthy IPNs so far published have been cited. |
| Note de contenu : |
- Polymer blends and alloys
- Interpenetrating polymer networks : - Formation of IPNs – Topological isomerism of IPNs – Synergic behavior of IPNs
- Morphology of IPNs
- Glass transition behavior of IPNs
- Physical properties of IPNs
- Characterization of IPNs : - Morphology by electron microscopy – Thermal measurements – Mechanical properties – Kinetic measurements of IPN formation – Barrier properties of IPNs – Chemical and corrosion resistance properties of IPNs – Solvent resistance properties of IPNs – Visco-elastic measurements of IPNs – Electrical properties of IPNs – Infra-red [IR] and Fourier Transform Infra-red [FT-IR] spectroscopy – Gel permeation chromatography – Density and wettability
- Application of IPNs : - IPNs as leather coatings – IPNs as dental fillings – IPNs as sheet-moulding compounds [SMCs] – IPNs as noise and vibration damping materials – IPNs as rimplast thermoplastic resins – IPNs as automobile parts
- Current status
|
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12577 |
in PAINTINDIA > Vol. LI, N° 4 (04/2001) . - p. 43-54
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