ESD MATERIALS
Internal and External Antistatic Approaches
Internal additives place the antistatic function within the polymer formulation; external coatings add function only where the surface needs it.
Internal additives integrate with the bulk material
They are introduced during compounding or molding and may migrate toward the surface over time.
External coatings target the functional face
A dedicated layer can be applied to selected surfaces and adjusted independently from the bulk polymer.
Lifecycle requirements guide the choice
Part geometry, handling, cleaning, humidity, appearance and rework options change the preferred route.
Hybrid strategies are also possible
An internal baseline and an external functional layer can sometimes be combined when the full construction supports it.
References
- Antistatic Modification of Polypropylene Using TweenApplied Surface Science, 2012 · DOI 10.1016/j.apsusc.2012.05.105
- Conductive Polymer Modification of ABSNational Taiwan thesis record y3e7qm
