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E. Makarewicz

Rheological properties and structure of poly(vinyl chloride) plastisols stabilized with surfactants

Polimery 1990, No 9, 308

DOI: dx.doi.org/10.14314/polimery.1990.308


The effect of anionic surfactants such as sodium kerylbenzenesulphonate (KBS) and nonionic surfactants such as polyoxyethylenated nonylphenol (Rokafenol) and triethanolamine (TEA) as additives stabilizing the rheological properties of PVC plastisols has been determined. The deterioration of properties of plastisols containing KBS has been stated, consisting in the presence of the aggregation and sedimentation processes. TEA behaves in plastisols as a typical diluent. Rokafenol considerably enhances the stability of rheological properties of PVC plastisols due to the formation of an adsorptive layer on the surface of swollen PVC grains solvated by plasticizer and diminishes the tendency to internal structures formation.

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