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English
Views: 0 Author: Site Editor Publish Time: 2026-01-27 Origin: Site
The rate at which antistatic agents migrate from the interior of the polymer to the surface depends on many factors. These factors include:
1. Relative affinity between the antistatic agent and the polymer material
. The worse the affinity between the additive and the polymer, the faster the migration rate.
2. Crystallinity of the polymer
The higher the crystallinity of the polymer, the slower the migration rate of the antistatic agent from it.
3. The total polymer additive ratio.
Some additives will absorb antistatic agents.
4. Concentration of antistatic agent
High concentration = fast migration rate.
5.
High temperature = increase migration rate.
The internal antistatic agent needs to have a controlled compatibility with the polymer being blended. Antistatic agents reduce the surface resistance by migrating to the polymer surface and also absorb moisture from the air. If an antistatic agent is too compatible with the polymer, it will not migrate. If it is not compatible with the polymer at all, it migrates too quickly and too frequently, resulting in too much grease on the polymer surface.
