[article]
| Titre : |
Development of computer program for design of alkyd resins - a modern tool for polymer scientists |
| Type de document : |
texte imprimé |
| Auteurs : |
S. P. Shetty, Auteur |
| Année de publication : |
1996 |
| Article en page(s) : |
p. 35-48 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
'Alkyde résine' 'Conception assistée' 'Recherche développement' Formulation |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A novel computer program has been developed for formulating alkyd resins composed of polybasic acids, polyols, vegetable oils and fatty acids.
In the present paper, the techniques used for the development of this novel computer program has been explained with illustrations. Using this program, epoxy esters and mutistage alkyds such as water reducible alkyds can also be formulated.
The technique provides an explicit connection between the alkyd resin composition and the relevant parameters of the alkyd resin such as oil length, molecular weight, hydroxyl value, alkyd constant P gel, hydroxyl per mole, carboxyl per mol etc. representating the polymer structure. This computer program has been developed using Microsoft's Basic Language Interpreter, thus enabling the user to rapidly manipulate formulations in order to arrive upon the desired properties. In effect, the user can use this program to help himself to formulate resins to his specification. |
| Note de contenu : |
Computation basis
- Oil length of alkyds (with oils and fatty acids)
- Excess hydroxyl content (R)
- Patton's Gelation Constant (K)
- Molecular weight and equivalent weight of finished resin
- Calculation of raw material composition for given alkyd constants
- Calculation of alkyd constants for raw materials weight given in ranges
- Option 1 : For characterizing resin with known formulation
- Option 2 : For known alkyd constant inputs (K et R)
- Option 3 : Generation of alternate formulations
- Option 4 : Stage wise in addition of raw materials |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13509 |
in PAINTINDIA > Vol. XLVI, N° 8 (08/1996) . - p. 35-48
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