Formulaction brochure

MICROFLUIDIC PRINCIPLE

RHEOLOGY ON CHIP

RHEOLOGY ON CHIP OPTICAL MEASUREMENT OF CONFINED FLOW RHEOLOGY

Measurement principle A sample and a viscosity standard are pushed together through a « Y-shaped » microfluidic chip at controlled flow rates. Images of the resulting laminar co-flow are acquired via an integrated optical system and the position of the interface is measured. The interface position is related to the viscosity and the flow rate ratios between the sample and the reference. Using dedicated algorithms, sample viscosity is automatically extracted as a function of shear rate and temperature.

Flow curve in a single click Viscosity measurement is now as easy as filling a syringe. Once shear rate ranges and temperatures are selected, software will automatically control and adjust the flow rate and determine the viscosity. Not only it enables one-click experiments, but the technology is also calibration free and extremely precise.

Visual Rheology Based on a simple intuitive

principle, the interface between the fluids is detected by a video camera. Each measurement point is associated to an image

accessible for control during and after the analysis. Thanks to Fluidicam, reliability reaches a new standard.

Viscosity

Newtonian

VISUAL FLOW RHEOLOGY BY MICROFLUIDICS

Reference Viscosity h R Flow Rate Q R

Sample Viscosity h Flow Rate Q

Sample

Shear-thinning

Fluidicam is designed for flow curve measurements over a wide range of application: from extremely low viscosity up to thick and pasty formulations. Thanks to its unique microfluidic technology, Fluidicam covers a very wide range of shear rates (even higher than 10 5 s -1 ) with low sample consumption.

10

10 2

10 3

10 4

10 5 Shear rate (s -1 )

Syringe pumps

Reference

Shear Rate a Flow Rate Channel Gap

Camera

W W R

W W

Q = x

h h

Q

R

R

R

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Smart Scientific analysis

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