This article considers three complementary analytical
techniques that provide the information needed for optimal latex adhesive
performance, dynamic light scattering, zeta potential and rotational rheometry.
Dynamic light-scattering techniques and rotational rheometry
together quantify the factors that strongly influence adhesive performance,
providing information to optimize formulation. Analysis of three samples of
styrene butyl acrylate latex adhesive with different high shear stabilities
illustrates this point. A Gemini rheometer (Malvern Instruments) with a 40 mm
parallel plate (PP40) geometry was used for the high shear rheology
measurements, and a Zetasizer Nano dynamic light scattering particle
characterization instrument (Malvern Instruments) was used for the particle
size and zeta potential measurements.