Mineral Oil Viscosity: A Crucial Factor in Asphalt and Polymer Determinations

Viscosity, a measure of a fluid's resistance to flow, plays a vital role in various industries such as asphalt and polymer research. Timken Engineered Surfaces Laboratories, in collaboration with The University of Akron, have developed high-viscosity standards that cater specifically to these applications. These standards are designed to provide accurate measurements of viscosity, which is critical in determining the properties of materials.

The CANNON viscosity standards range from low to high viscosities and temperatures, making them ideal for asphalt viscosity determinations and polymer analysis. Only hydrocarbon-based standards should be used with glass capillary viscometers, as they are specifically designed to ensure accurate measurements.

One important aspect to consider when working with viscosity standards is the risk of 'viscous heating.' This occurs when high rates of shear generate heat, causing the standard to appear non-Newtonian. In reality, the standard remains Newtonian, but its behavior may deviate from true Newtonian response due to thermal effects.

For all practical purposes, CANNON viscosity standards can be considered Newtonian liquids. However, some deviation from true Newtonian response can be expected with higher viscosity standards, particularly when measured at high rates of shear.

The higher viscosity standards (S2000 and above) are polybutenes, while the lower viscosity hydrocarbon standards consist of mineral oil base stocks. Most CANNON viscosity standards are hydrocarbon-based, which ensures accurate measurements.

Bulk quantities of these standards are available on special order, and they can be purchased in 470 ml bottles unless otherwise specified. Viscosity values at other temperatures within the range of 20°C to 100°C (68°F to 212°F) can also be provided upon request, although this may incur an additional charge.

CANNON has been granted ISO 9002 registration for the manufacture and certification of viscosity standards, ensuring their compliance with international quality standards. The company provides detailed information on viscosity values, kinematic viscosity, and density at various temperatures, which is printed on the label or supplied as part of the product package.

In conclusion, mineral oil viscosity plays a crucial role in asphalt and polymer research. CANNON's high-viscosity standards offer accurate measurements and are suitable for a range of applications. By understanding the properties of these standards and taking measures to avoid viscous heating, researchers can ensure reliable results in their experiments.

Mineral oil viscosity cp