| Titre : |
A new approach to correlate functional group distribution and reaction conditions of melamine formaldehyde resin |
| Type de document : |
texte imprimé |
| Auteurs : |
Sourabh Bhattacharya, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 49-58 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
Mélamine Polycondensation Alcoxylation Butanol 'Réactivité chimique' Durcissement 'Matières plastiques' 'Relation mise en œuvre propriété' Dureté 'Propriété mécanique' |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
An innovative approach has been taken to establish definite correlation between reaction conditions and functional group distribution of melamine-formaldehyde resins. Four selective melamine-formaldehyde resins were synthesized under different melamine, formaldehyde, butanol ratios and pH. The functional groups of the final resins were characterized using Fourier Transform Infrared spectroscopy, Proton -Fourier Transform Nuclear Magnetic Resonance spectroscopy, along with other conventional chemical analysis. The effect of reaction conditions on molecular weight and its distribution were studied using Gel Permeation Chromatography. Further substantiation were carried out after curing with alkyd as well as with acrylic and subsequent correlation with the film hardness. Scanning Electron Microscopy was used to identify incompatibility. Based on these experiments author of this paper, it was confirmed that the structure and curing behaviour of melamine-formaldehyde resin can be predicted using various reaction conditions. The present work will also help in establishing a relation between the selection of melamine-formaldehyde resin with known structure as a cross-linker in the field of paint industry. |
| Note de contenu : |
- Synthesis of MF-resin
- Characterisation of MF-resin
- Reactivity study
- Analysis of IR spectra
- NMR study
- GPC analysis
- Comparative studies of MF-resins under investigation
- Measurement of cured film hardness
|
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12587 |
in PAINTINDIA > Vol. LI, N° 5 (05/2001) . - p. 49-58
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