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1. General
1.1 Flexible PVC
Almost 85% of plasticizers are used in the manufacture of flexible PVC. Historically, plasticizers, among other things, have made PVC processing possible. It was found that the thermoplastic resulting from this external plasticization (without chemical reaction) retained its properties over a very long period of time; flexible PVC can therefore rightly be considered a different material from unplasticized PVC, known as rigid PVC. Since flexible PVC results from the mixing of two constituents (one liquid, the other solid) in very broad proportions (from 20 to over 600 pcr of plasticizer), the range of flexibilities obtained is extremely wide. This explains the wide range of applications.
pcr: parts...
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General
Laminating theories
References
- (1) - SEARS (J.K.), DARBY (J.R.) - The technology of plasticizers. - Willey & Sons Ed., 1 166 p. (ouvrage encyclopédique donnant près de 1 500 références sur 240 p. et décrivant les propriétés physiques de l'ensemble des plastifiants utilisés aujourd'hui et les propriétés des produits plastifiés) (1982).
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Standardization
- Plastiques et ébonite. Détermination de la dureté par pénétration au moyen d'un duromètre (Dureté Shore) (indice de classement : T 51-109). - NF ISO 868 - 9-86
- Plastiques. Détermination de la rigidité en torsion des plastiques souples. Partie 1 : Méthode générale (indice de classement : T 51-102). - NF ISO 458 /1 - 9-86
NF: French standards published by AFNOR (Association Française de Normalisation)....
Main suppliers of phthalates (and their brand names)
BASF AG (Palatinate) – BASF (Cie française).
Exxon Chemical Co. (Jayflex ) – Exxon Chemical France.
Hüls AG (Vestinol ) – Hüls France.
ICI Ltd (Hexaplast ) – ICI France SA.
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