SUBJECT

Electrostatic Effects

Publications on electrostatic charging, charge accumulation, particle-wall interactions, and their effects on powder handling, conveying, and process performance.

PUBLICATIONS

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Explore PTI articles, Insights, Know How, and technical publications related to this subject.

  • Diagram showing particle back-flow in pneumatic conveying at a low-drag duct corner
    26 September 2026

    Triboelectric Particle Back-Flow in Pneumatic Conveying: Why Charged Particles Migrate Upstream at Duct Corners

    CFD-DEM simulations show triboelectrically charged particles can reverse direction in low-drag duct corner zones during pneumatic conveying, with the delay between feed pulses driving the effect more than pulse length.

    Insights

  • Triboelectric separation charging tube sorting plastic flakes by contact charge polarity in an industrial free-fall separator
    22 August 2026

    Triboelectric Separation: Using Charge Difference to Sort Plastics and Minerals Instead of Fighting It

    Triboelectric separation turns contact electrification from a handling hazard into a deliberate sorting mechanism. This article covers how material pairs are selected by charge polarity, what feed moisture and particle size do to separation efficiency, and where the technique sits relative to density and optical sorting.

    Feature Article

  • Technical editorial diagram showing single-contact powder electrification versus bulk average measurement, with one particle contacting an instrumented surface and the resulting signal compared with a bulk powder response.
    1 August 2026

    Single-Contact Electrification Testing: Isolating Charge Transfer Per Contact

    Single-contact electrification apparatus measures charge transfer from one controlled particle-surface or particle-particle contact, isolating a variable that bulk triboelectric and charge decay measurements can only report as an average.

    Insights

  • FIBC discharge problems technical illustration showing how the liner-spout interface can cause unstable discharge, dust release, and residual heel in a bulk bag emptying station.
    11 April 2026

    Why FIBC Discharge Problems Often Start at the Liner-Spout Interface

    FIBC discharge problems are often blamed on the powder being discharged too [...]

    Insights

  • Triboelectric charging in powders causing fine powder to cling to polymer and stainless steel surfaces during industrial transfer
    28 March 2026

    Triboelectric Charging in Powders: Why Humidity Matters

    Triboelectric charging in powders is not fixed by a single material ranking. [...]

    Feature Article

  • Powder dustiness technical illustration comparing two transfer situations with the same PSD, showing how moisture history, agglomerate stability, and electrostatic effects change particle detachment and airborne dust release.
    28 March 2026

    Powder Dustiness Is a Release Problem, Not a Fines Number

    Powder dustiness is a release behavior. It is not a simple fines [...]

    Insights

  • Technician uses a riffle splitter to divide silicon anode powder into labelled sample jars on a lab bench.
    24 January 2026

    Silicon Anode Powder: The Manufacturing Bottleneck Behind Next Gen Battery Gains

    Silicon anode powder fails in production for predictable reasons. Particle morphology, oxide [...]

    Feature Article

  • Triboelectric charging in powders at a pneumatic conveying transfer point, showing fine powder flow near grounded stainless steel piping and an electrostatic field sensor.
    13 December 2025

    Triboelectric Charging in Powders: The science, failure modes, and industrial controls

    Triboelectric charging forms when powders contact and separate, creating a shifting charge [...]

    Feature Article

  • Loss-in-weight feeder with anti-static hoses and RH display, used to link settings to charge decay time.
    18 October 2025

    Charge Decay Time: A Fast Predictor of Powder Handling Risk

    Charge decay time turns electrostatics into a practical control knob. Measure it [...]

    Insights

  • Square hero image illustrating hidden charge peaks in powder flows with localized hotspots.
    27 September 2025

    Hidden Charge Peaks in Powder Flows: Measure What is missed

    Do not accept a safe net charge as proof of safety. Find [...]

    Insights

  • Scientist applying slurry of lithium powders to foil electrode in lab, demonstrating lithium powders energy density research.
    6 September 2025

    Atomic Fundamentals and the Density–Energy Link

    Lithium’s atomic-scale behavior drives energy density in batteries. Powders are not passive [...]

    Feature Article

  • Electrostatic troubleshooting powder handling with silo discharge, warning sign, and charge meter.
    29 August 2025

    Electrostatic Troubleshooting in Powder handling

    Electrostatic troubleshooting in powder handling addresses particle properties, environmental factors, and equipment [...]

    Know How