That's right! You can 3D-print food. This presents a new and very interesting perspective in cooking with opportunities to modify the structure of the goods we eat. Icing, syrups, honey, nutella, dough... there are few limitations and some challenges to this process.

In Viscosity Measurements, Fun with Viscosity

It is widely accepted that viscosity plays a crucial role in current printing and coating industries. In a very similar way, viscosity has a strong influence on the texture of artistic paintings. Textures may not be as obvious as colors in a painting, but it can be just as important in conveying the artist’s idea or concept behind it.

In Viscosity Measurements, Applications

Units of Viscosity: Part I

The most commonly used unit for dynamic viscosity is centipoise (cP), which is equivalent to 0.01 Poises (P). This unit is used in honor of French physicist Jean Léonard Marie Poiseuille (1797-1869) who worked with Gotthilf Hagen on the widely known Hagen-Poiseuille’s law which applies to laminar flow through pipes. It is not a coincidence that the viscosity of distilled water at 20°C was used to define 1 cP. In order to give you an idea of the viscosity of some conventional fluids we have collected their viscosities in Table 1. The SI unit for viscosity is the Pascal-second (Pa-s), which corresponds to the force (N) per unit area (m2) divided by the rate of shear (s-1). However, since the viscosity of most fluids is below 1 Pa-s (See table 1), the cP equivalent or milipascal-second (mPa-s) is often used.

In Viscosity Measurements, General Information

Flow behavior of complex fluids is traditionally characterized through the distinction between Newtonian and non-Newtonian based on each fluid's viscosity dependence on both deformation and speed of deformation. Proper understanding of material properties is vital for more complex concepts such as shear stress, shear strain, and shear rate. Practical applications include production processes such as inkjet printingprotein formulations/injections, and food/beverage manufacturing.

RheoSense’s webinar will explain the differences between Newtonian and non-Newtonian fluids and cover the fundamentals on establishing the viscosity fingerprint of materials using real application examples.

In Viscosity Measurements, Conference/Event