Blending Polyethylene Pellets With Carbon Black


Resodyn Acoustic Mixers’ second generation technology, LabRAM II, provides up to I kg payload capacity and advanced control features. Virtually any combination of liquids, powders, pastes, and gases can be processed faster, better, more efficiently, and more productively using the LabRAM II bench-top mixing systems and accessories.

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Milling and Coating with RAM

Coating larger particles with smaller ones is a common processing application, and milling is often a part of the same process. In the image on the top-left, carbon black (a nano powder) is processed with plastic pellets shown in the completed mix image in the center. The image on the top-right shows an enlarged view of the pellets before and after coating. RAMTM processing milled the agglomerated carbon black and coated all of the plastic pellets in less than 8 seconds, illustrating  RAM’s ability to effectively apply a uniform coating on larger particles.

Processing Parameters

  • Average Pellet Size: 0.125″
  • Carbon Black Agglomerates: > 0.040″ in diameter
  • Batch Size: 200 grams of polyethylene and 0.75 grams of carbon black
  • The use of RAM™ technology for coating of pellets is efficient and there is no need for additional coating agents such as oils.

ResonantAcoustic® Mixer Value Proposition

  • Mix 10-100 times faster than traditional mixers
  • Improve product quality to new levels
  • Reduce or eliminate clean-up costs
  • Eliminate cross-contamination
  • Scale easily from development to production
  • Scale up without increased processing time