Experimental object

Carbon black

Experimental instrument

ATS jet dispersion machine

Laser particle size analyzer

Experimental background

Carbon black is an amorphous form of carbon. It is a light, loose and very fine black powder, with

 a very large surface area, and is the product of incomplete combustion or thermal decomposition 

of carbon-containing substances (coal, natural gas, heavy oil, fuel oil, etc.) under the condition of 

insufficient air. It is also used as a reinforcing agent and filler for rubber, as a colorant for inks, coatings

 and plastics, and as a UV screen agent for plastic products.

Experimental difficulty

Carbon black surface area is generally relatively large, easy to absorb water in the surrounding environment, 

a long time will produce flocculation, the need to form a stable dispersion system, so the dispersion has been 

one of the important indicators of carbon black.

Experimental purpose

The D50 of the dispersed sample is below 500nm

Experimental technology

1. Pretreatment of carbon black powder with water into experimental sample

2, ATS jet dispersion machine high-pressure processing twice

Experimental result

Particle size measurement

After the carbon black sample was processed by ATS jet disperser, D50 reached 0.215um

Experimental summary

1. During pretreatment, the concentration of carbon black mixture is very high, and a small amount of fractional 

addition is needed to finally make the experimental sample

2, the treated sample D50=0.215um, meet customer requirements