Why does the conductive corrugated sheet you produced have unmelted points and an uneven, pitted surface?
July 30, 2025
Why does the conductive corrugated sheet you produced have unmelted points and an uneven, pitted surface?
The following factors could contribute to this issue:
1. Poor compatibility between the carbon black in your chosen conductive masterbatch and the PP carrier material.
2. Unproper selection of dispersing agents (such as stearic acid or paraffin wax) by the conductive masterbatch supplier during production, leading to filler aggregation.
Both of these issues can cause surface defects including white spots, unmelted points, streaks, uneven conductivity distribution, and unstable electrical resistance. When measuring resistance values, significant fluctuations may occur due to these quality inconsistencies.
I will explain how to solve it by next post.
ConductivePPmasterbatch ConductiveMasterbatch ConductivePolymers ConductiveCompounds ConductiveMaterials ConductivePP ConductivePolypropylene ESDPPMasterbatchUsedForCorrugatedSheet