1、 The weight of black masterbatch

The weight of black masterbatch and defective black masterbatch is different. Take high-quality and defective black masterbatch particles with the same volume and weigh them in the same container. You will find that black masterbatch will have a lower weight, while defective black masterbatch will have a heavier weight. Because some impurities were mixed during the production of defective black masterbatch, which can be quite heavy!

2、 Incineration of black masterbatch

Use a lighter to incinerate high-quality and defective black masterbatch, and investigate its powder condition after it is exhausted. You can find that the black masterbatch powder condition is less and appears dark black, while after the defective black masterbatch is incinerated, you will find that there is a smell, more powder, and light black color!

3、 Polishing the black masterbatch after incineration

Place the burnt black masterbatch on A4 paper and circle it with your fingers. You can see the black masterbatch with clear traces and darker colors. The color of the defective black masterbatch is dark, without any trace, and the blackness is relatively light, indicating a low carbon black content!

4、 Investigate the black masterbatch after grinding

Black masterbatch has good blackness, sufficient brightness, high concentration, and bright color. The defective black masterbatch, due to its high impurities, has a lighter black color, lower concentration, and no luster.

Article source: Taishan conductive mica particles

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