ASTM D2663 - carbon black dispersion testing device, Standard Test Methods for Carbon Black—Dispersion in Rubber

5.1 Visual dispersion ratings correlate with certain important physical properties of the compound. A rating of 5 indicates a state of dispersion developing near maximum properties, while a rating of 1 would indicate a state of dispersion developing considerably depressed properties. Normally, the visual dispersion ratings indicate the following levels of compound quality:

The method is applicable to carbon black or pigmented polyolefin pipes, fittings and compounds with a carbon black content of less than 3 % by weight, and pigment content of less than 5 % by weight.

UNITEDTEST UT3600 Carbon black dispersion tester is used to measure the carbon black dispersion in polyolefin pipes, fittings and compounds. Adaptive to measuring software, and the microscope, measure the size, form, dispersion condition of the carbon black granule, can built the internal connection of this parameter with mechanical property, anti-static function, moisture absorption performance etc., it's an necessary instruments for quality control, new product R&D department. Conform with standard ISO 18553.  ASTM D2663

Dispersion Grading 

The DG reference scale is based on ISO 11345.

A test sample image is captured and compared to the reference scale digitally.

A definitive DG (Class) value is calculated automatically.

Why test the level of Carbon Black Dispersion? 

To determine Carbon Black: Dispersion influences physical properties:

Abrasion resistance

Tensile strength & elongation

Fatigue resistance

Tear resistance 

Hysteresis

Carbon Blacl< Dispersion affects processability

Electron Microscopy

Scanning SEM

Transmission TEM

Atomic Force Microscopy

Surface Topography

Optical Microscopy

Transmission

Reflectance