Standard Test Method for Rubber—Determination of Residual Unsaturation in Hydrogenated Nitrile Rubber (HNBR) by Infrared Spectrophotometry

Importancia y uso:

4.1 Hydrogenated nitrile rubbers are available at different levels of unsaturation and different acrylonitrile content. Highly saturated grades offer optimum resistance to aging, such as exposure to heat, ozone, and chemicals, and can be effectively cured only with peroxides or high energy radiation.

4.2 Partially unsaturated grades can be cured by sulfur systems in addition to peroxides and high energy radiation.

4.3 This test method provides an infrared technique to determine the unsaturation level of hydrogenated nitrile rubbers in the raw state. It can be used for research and development, quality control, and referee purposes.

Subcomité:

D11.11

Volúmen:

09.01

Número ICS:

83.060 (Rubber)

Palabras clave:

HNBR; hydrogenated nitrile rubber; infrared spectrometry (IR); unsaturation;