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Analysing foam parameters, Controlling surfactant effects

The new generation SITA FoamTester

20 years of experience meets the needs of innovative foam testing

The SITA FoamTester analyses the characteristics of surfactant-containing liquids easy, fast and precise with automated measuring sequences.

 

• Fully automated foam analysis

• Precise reproducible foaming

• Innovative optical measuring method

• Measuring foam and liquid volume

• Analysing foam structure

• Recording drainage

 

Automated SITA foam testing

Functionial components of the SITA FoamTester

Convenient sample handling




Sample preconditioning with external devices
Integrated sample reservoir with magnetic stirrer

Cleaning system with external liquid supply (e.g. tap water)



 


Flexible experimenting


Free creation of experiments


Creating templates and test routines



Create foam

Differentiation of various sample formulations and reproducible test sequences using an application-oriented foam generation with proven SITA method

Established SITA standardised stirring disc
Removable measuring vessel with stirring unit
Variable stirring parameter: speed, duration, acceleration, direction, intervals
Minor impact of the measuring vessel on foam creation

Measure foam

Use of optical, contactless measuring methods

Foam Surface Scanner

Determination of the topography of the foam surface with structured-light method


Foam Interface Scanner

Vertical Liquid Foam Scanner: Determination of the foam structure and the liquid level by optimal use of total-internal reflection


Automatic acquisition of the total volume, foam volume, liquid volume and foam structure
Recording of the foam structure over the entire foam height of the measuring vessel

Analyse foam and understand foaming

Convenient evaluation of measuring data with the software SITA-FoamLab in the office
Complete transparency of the measuring progress and the results by intuitive visualisation


Foam creation analysis


Foam decay analysis


Foam structure analysis


Comprehensive characterising of foam and foaming
- by the determination of further parameters such as half-life period and foam density
- by individual height-dependent evaluation of foam structure parameters such as average bubble diameter or circularity index
Flexible comparison by clear display of different measuring sequences

Easy export of data and results for documentation

 

Fields of Application

Optimization of surfactant containing products




Product Development
Raw material development and selection
Product processing and application

Quality and process assurance



 


Application examples


Cosmetics

Influence of the formulation and raw materials on foaming behavior
Foam stability of toothpaste and foam baths

Foam structure as a reference point for user perception

 


Cleaning agents

Temperature influence on spray cleaners

Influence of contamination in the cleaning bath

 


Textile chemistry






Cooling lubricants


Influence of water hardness on aging process
Durability of defoamers

Optimization of the filtration process

 


Paper industry


Foaming behaviour of paper flow suspensions

 


Inks, Paints and coatings


Effectiveness of defoamers

 


Phamacy






plastics manufacturing


Behaviour of polymers in the production process

 


Technical data

Foam creation
Recommended sample volume 200 ... 500 ml
Usable measuring vessel volume 1,500 ml (incl. foam)
Capacity of sample reservoir
2,000 ml
Sample tempering of measuring vessel and sample reservoir
0 ... 60 °C with optional thermostat
Stirring speed 0 ... 2,000 U/min (bidirectional)
Adjustable stirring programs speed, duration, direction, acceleration
Analysis of foam volume (foam creation and decay)
Measuring values
total volume, foam volume, liquid volume
Parameters max. foam volume, foam half-life period, foaming potential, flash foam
Measuring area foam volume 0 ... 1,500 ml; resolution 1 ml
Liquid volume & drainage 0 ... 500 ml; resolution 1 ml
Analysis of foam structure
Parameters number of bubbles, bubble size distribution, average bubble diameter, circularity index
Evaluation area height 130 mm
width 50 mm
Resolution 3,200 dpi
General data
Rinse connection 3/4“ 2 ... 6 bar
Power supply 100 ... 240 V / 50 ... 60 Hz,
300 W
Dimensions (HxWxD) 770 x 450 x 305 mm
Weight approx. 35 kg

Available models

 

SITA Foam Testing System Expert

consisting of SITA FoamTester und SITA-FoamLab Expert

SITA Foam Testing System Basic

consisting of SITA FoamTester und SITA-FoamLab Basic

Convenient sample handling
Flexible experimenting
Application-oriented foam generation with proven SITA method
Optical, contact-free measuring systems
Foam creation analysis
Foam decay analysis
Foam structure analysis

Optional: External laboratory devices for samplé conditioning

Extension of experiments by additional functions for sample conditioning

Automatic integration and direct control within the test sequence

 

Automatic dispenser CAT Contiburette μ10D

 

for dosing of liquids

Resolution: 10 µl

Dosing speed: 0,2 - 20 ml/min

Thermostat Lauda ECO RE 415S

 

for cooling and heating of sample liquids

Temperature range: -15...200°C

Ambient temerature range: 5 ... 40°C


Thermostat Lauda ECO E4S

 

for heating of sample liquids

Temperature range: room temperature...200°C

Ambient temerature range: 5 ... 40°C


The market launch of the SITA FoamTester is supported within the scope of the German development programme "Market launch of innovative products and product design".
 


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