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2. Laminating theories
Understanding of the plasticization mechanism has improved over time, but many phenomena are still only partially quantified. This is because the polymers that bind the relatively simple plasticizer molecules are complex assemblies comprising, in the case of semi-crystalline polymers, crystalline and amorphous domains that react differently to plasticizers.
2.1 Lubrication theory
Lubrication theory postulates that the plasticizer, by insertion between two polymer chains, reduces interchain bonding forces. This theory reflects what happens at temperatures slightly below the melting temperature, for which the plasticizing effect is highly dependent on the coefficient of friction of the polymer chains, but, at lower temperatures, this theory leads to representing...
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Laminating theories
Main types of plasticizers
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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