The Viscosity of Preserved and Concentrated Latex. Part I. Relationships between Dry Rubber Content and Viscosity

Abstract

Abstract The viscosity-temperature relationships for normal preserved latex, centrifugal concentrate and aqueous dilutions of such concentrates have been determined on a few samples. The results obtained suggest a basis for the calculation of approximate comparative viscosities for normal preserved latex and centrifugal concentrate at different temperatures. From the viscosity curves for rising and falling temperatures on normal preserved latex and centrifugal concentrate, it appears that normal latex can be heated for several hours at 80° C without seriously affecting the state of dispersion. There are indications, however, that with rich concentrates, heating does affect the state of dispersion slightly.