Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Rubber Process Analyzer

Rubber Process Analyzer

The Rubber Process Analyzer with computerized control, data acquisition, and analysis system in the Thermal and Rheological Characterization Laboratory.

The TA Instruments RPA elite rubber process analyzer (RPA) is a strain-controlled rotational shear rheometer for the characterization of polymers, composites, rubber and rubber compounds. The instrument is capable of applying larger torque to characterize relatively stiff materials of interest.

Related Publication

Rheological Characterization of Next-Generation Ballistic Witness Materials for Body Armor Testing

Thermo-Rheological Characterization on Next-Generation Backing Materials for Body Armour Testing

Rheology of ballistic clay: the effect of temperature and shear history

Specifications/Capabilities

Frequency: 0.001 to 50 Hz

Strain: 0.07 % to 5000 %

Torque: 0.01 to 25 Nm

Temperature: 18 °C to 230 °C (enhanced cooling system)

Platen sealing pressure: 1 to 8 bar adjustable

Test modes: Strain sweep (LAOS available), frequency sweep, stress relaxation, isothermal cure.

Data processing software

Scientific Opportunities/Applications

Mechanical characterization of rubber compound

Polymer/rubber processing.

Large amplitude oscillatory shear (LAOS)

Structure-property relationship of polymer composites/rubber compounds.

Isothermal cure/curing kinetics

Created October 18, 2017, Updated May 17, 2022