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DMA Testing for Long Term Material Performance (.doc)

From Associated Polymer Labs, Inc.
 

 

DMA is short for Dynamic Mechanical Thermal Analysis (DMTA), which is another name for Dynamic Mechanical Rheological Testing (DMRT).

Rheometers for mechanical rheometry are of two types:
1) Linear displacement, RSA II Rheometrics Solids Analyzer
2) Rotational, SR5 Rheometrics Controlled Stress Rheometer

Rheology is the science that studies the deformation and flow of materials, whether in liquid, gel, melt, solid, or composite form, in terms or their elasticity and viscosity.
Elasticity is the ability of a material to store deformational energy, and can be viewed simply as the capacity of a material to regain its original shape after being deformed.
Viscosity is a measure of a material's resistance to flow and reflects the material's rate of dissipation of deformational energy through flow.

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Topics of Interest
15.1 Dynamic Mechanical Analysis 15.1.1 Theory Dynamic mechanical analysis (DMA) provides putative information on the viscoelastic properties - modulus and damping - of materials. (Read More)
Dynamic mechanical analysis (DMA) is an analytical technique which measures the modulus (stiffness) and damping (energy dissipation) properties of materials as those materials are deformed under... (Read More)
Rheology is the science that studies the deformation and flow of materials, whether in liquid, melt, or solid form, in terms of the material's elasticity and viscosity. We test the following: liquids,... (Read More)
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