Electrostatic Effects

Electrostatic effects occur when materials accumulate electrical charges during handling or processing, influencing particle interactions and material behavior. These effects can impact industries like pharmaceuticals, chemicals, and food, leading to challenges such as clumping, adhesion, or even ignition risks in powder handling.

On this page, explore the principles of electrostatic effects, their impact on material performance, and strategies to manage and mitigate these forces for safer and more efficient operations.

Featured Electrostatic Effects articles

Why FIBC Discharge Problems Often Start at the Liner-Spout Interface
FIBC discharge problems are often blamed on the powder being discharged too quickly. In many cases, the real issue sits lower down, at the outlet interface between the liner, discharge spout, receiving hopper, vent path, and bag support. That local geometry can decide whether a big bag empties cleanly, surges, releases dust, or [...]
Triboelectric Charging in Powders: Why Humidity Matters
Triboelectric charging in powders is not fixed by a single material ranking. In dry air, electron transfer often explains a large part of the behavior. As humidity rises, adsorbed water changes the interface, increases charge relaxation, and can shift the balance toward ion-related effects. Surface chemistry decides how that interface behaves. That is [...]
Powder Dustiness Is a Release Problem, Not a Fines Number
Powder dustiness is a release behavior. It is not a simple fines number. Two powders can meet the same particle size specification and still generate very different airborne dust during charging, dumping, transfer, or refill. Therefore, if you want to control powder dustiness, you need to look at how particles detach under real [...]
Silicon Anode Powder: The Manufacturing Bottleneck Behind Next Gen Battery Gains
Silicon anode powder fails in production for predictable reasons. Particle morphology, oxide growth, dispersion quality, and binder architecture decide swelling, cracking, and capacity loss. If these aspects are controlled, silicon scales. Table of contents Silicon is back in the anode discussion for one reason. It [...]
Triboelectric Charging in Powders: The science, failure modes, and industrial controls
Triboelectric charging forms when powders contact and separate, creating a shifting charge distribution. It can drive wall coating, segregation, coating drift, and ESD risk. Control it with hotspot measurements, humidity control, dissipative surfaces, ionisation, and KPI checks. Table of contents Why triboelectric charging in powders [...]

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