SOUTHWEST RESEARCH INSTITUTE

Chemical and Physical Analysis

 

Rheology and Texture Analysis

 

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  photo of TA Instruments ARES strain-controlled rheometer
 

TA Instruments ARES strain-controlled rheometer

Stress- and Strain-Controlled Rheometry

New state-of-the-art rheology capabilities at Southwest Research Institute (SwRI) characterize the flow properties of complex materials, such as adhesives, plastics, elastomers, paints, and gels. We have applied this expertise to programs seeking to understand crystallization kinetics, slip behavior, and more.

  • Measure viscosity or modulus of a sample as a function of shear rate or frequency.

  • Observe changes in viscosity or modulus as a function of time or temperature (from 0 to 200°C).

  • Detect differences in molecular weight and molecular weight distribution between different polymers.

  • Perform stress relaxation and creep evaluations.

  • Evaluate samples using parallel plates, cone and plate, and Couette (cup and bob) geometries.

Texture Analyzer

The texture analyzer is a versatile instrument for observing the large strain deformation of adhesive, food, pharmaceutical, and other samples. Samples can be tested in tensile, compression, or 3-point bends. A Peltier plate provides temperature control between -30 and 80°C. The texture analyzer can also perform peel tests and the Avery test for pressure-sensitive adhesives.

 

photo of TA Instruments AR2000 stress-controlled rheometer   photo of Texture Technologies TA.XT texture analyzer

TA Instruments AR2000 stress-controlled rheometer

 

Texture Technologies TA.XT texture analyzer

 

Also available at SwRI:

  • Dynamic mechanical thermal analysis (DMTA)

  • Differential scanning calorimetry (DSC)

  • Thermal gravimetric analysis (TGA)

For more information about our rheology and texture analysis capabilities, or how you can contract with SwRI, please e-mail chemphys@swri.org, or call (210) 522-6259.

 

chemphys.swri.org

 

Contact Information

Rheology and Texture Analysis

(210) 522-6259

chemphys@swri.org

chemphys.swri.org

Related Terminology

stress-controlled rheometry

strain-controlled rheometry

rheology capabilities

Couette geometries

adhesive analysis

texture analyzer

plastic testing

polymer analysis

elastomer evaluation

gel flow properties

ARES strain-controlled rheometer

AR2000 stress-controlled rheometer

 
 

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Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 11 technical divisions.

June 16, 2011