Viscosity control of plastisols is a major consideration in the formulation of a vinyl product produced by methods such as spread or reverse roll coating. The application conditions often dictate the addition of a diluent in the formulation to lower the rheology of the plastisol for successful processing. A benzoate plasticizer has been introduced that has the capability of lowering plastisol viscosity while also performing as a highly solvating plasticizer. This unique combination is illustrated in both phthalate and benzoate containing plastisols and the properties of both the plastisol and the final sheet are presented.
References
1.
WilsonA.S., Plasticisers. Principles and Practice, The University Press, Cambridge, (1995), 36
2.
WicksonE. J., Handbook of Polyvinyl Chloride Formulating, John Wiley & Sons, New York, (1993), 189
3.
VanveersenG.J. and MeulenbergJ., Kunststoffe, 56, (1996), 23
