Conductive plastics.
ESD-safe.
Anti-static design.
Electrical conductivity in plastics — insulating, dissipative, conductive. ESD-safe materials for electronics. Surface resistivity guides selection.
Key principles.
> 10¹² Ω/sq
Standard plastics. Surface resistivity > 10¹² Ω/sq. Standard insulator.
10⁹-10¹² Ω/sq
Static-dissipative. Slow charge dissipation. Electronics packaging.
10⁶-10⁹ Ω/sq
Static-dissipative materials. ESD-safe workstation materials.
< 10⁶ Ω/sq
Conductive plastics — carbon-loaded. Specialty applications.
Black
Carbon black or carbon nanotube fillers. 5-25% loading.
PEDOT, polypyrrole
Conducting polymers. Specialty (sensors, displays).
FAQ
When need anti-static?
Electronics handling — IC trays, packaging. Prevents static damage to sensitive components.
Carbon vs metal fillers?
Carbon: cheaper, lower conductivity, doesn't affect color much. Metal: higher conductivity, more expensive.
Surface vs volume resistivity?
Surface for static dissipation. Volume for through-thickness conductivity. Different applications.
ESD test methods?
ANSI/ESD S20.20 standard. Resistivity per ASTM D257. Charge decay per FTM 4046.
Color limitations?
Carbon fillers force black color. Metal fillers can be lighter. Pure conducting polymers various colors.
Cost premium?
ESD-safe grades 30-100% premium over standard. Worth it for ESD-sensitive applications.
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