P7 Applications

 

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FEATURES

bulletAutomatic measurements from a range of pre-loaded sample holders.
bulletMeasures : - 
        Shear viscosity,
        Extensional viscosity,
        MFI,
        Degradation,
        .........
bulletLow cost option to test multiple batches of material
bulletEase of investigation of different formulations.
bulletAutomatic logging and archiving of results .
bullet1,2 or 3 dies option gives ultimate flexibility.
bulletOptional local display
bulletVery accurate measurement 
bulletUnique re-melting does not change sample properties .
bulletLess than 1/4 sample heating time of other rheometers.
bulletSelf-cleaning construction.
bulletModern operator interface
bulletSecure RS485 communication output.
bulletPatented die and measurement configuration.
bulletFlexible control cabinet location.
bulletResults traceable to lab standards.
bulletFull  statistical analysis for SPC, Cpk, etc.

 

COMMERCIAL BENEFITS

bulletThe advantages come from very low operator overhead.
bulletThe fast melting and conditioning of the sample makes even difficult polymers viable.
bulletThe P7 rheometer presents many advantages against traditional lab rheology measurements as shown below.
P7 Rheometer Manual  rheometer

Elimination of operator sensitivity

Step changes results between loaded samples often noted

Low  manpower requirement

Very significant manpower 

Automatic self cleaning

Manual cleaning and preparation

Rapid and frequent sampling

Slow and infrequent

Fast response on individual samples

Delays in sampling

Trend display

Discrete values

Thermally sensitive materials unchanged with testing

Thermally sensitive materials changed during heating

Very low scatter in results

(Std as low as 0.001 while measuring I.V. of PET at 0.8 has been achieved ).

Higher scatter. Operator variability can be a significant factor.

 

PRINCIPLE OF OPERATION

The P7 is fed samples using an automatic carousel. The sample can be in powder or pellet form. A unique method of conditioning and re-melting, feed the polymer to a temperature controlled die through which pressure drop is measured and rheological information is derived such as viscosity and MFI.

 

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