SynopsisThe rheological behavior of centrifuged and creamed natural rubber latex concentrates and the effect of surface-active agents such as casein, polyvinyl alcohol (PVA), sodium alginate, and sodium carboxymethylcellulose ( NaCMC ) were studied at different shear rates and temperatures. The study showed that creamed latex, prepared using tamarind seed powder, is more sensitive to shear rate and temperature than centrifuged latex. The pseudoplasticity and viscosity of the latices can be increased by the addition of surface-active agents, and the effect varies with the type of surfaceactive agents. The behavior of the latices toward temperature is also affected by the addition of surface-active agents, and maximum effect is observed for polyvinyl alcohol and least for sodium alginate.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.