Rheology and mechanical
Find out how stiff your gel is, how it flows and how much force it takes before it gives.
Discuss a pilot studyCompression: stiffness
Illustrative · stress as the plate squeezes the gel
Illustrative stress-strain curve of a gel squeezed between two plates: a straight early stretch whose slope is the compressive modulus, then stress rising faster as the gel stiffens.
Oscillation: storage (G′) and loss (G″)
Illustrative · the stress leads the strain by the phase angle δ
Illustrative chart of a gel twisted back and forth: the strain applied and the stress measured are two sine waves, with the stress leading by a phase angle δ of 25 degrees, so tan δ is 0.47, under 1, as for a solid-like gel.
Frequency sweep
Illustrative · G′ above G″, both fairly flat: how a gel reads
Illustrative frequency sweep of a gel on log axes: the storage modulus G′ sits above the loss modulus G″ at every frequency, and both stay fairly flat.
What we run
- G′ and G″, tan δ
- Viscosity and modulus
- Frequency sweeps
- Compression and tensile testing
- Yield stress
Plan your study
Tell us the material and what the data needs to show. The first consultation is on us.