Polymer Processing – C. W. Brabender

C. W. Brabender

C. W. Brabender

Sample Requirements

100- 500g of polymers, chemicals, food, or ceramics


Summary of Technique

  • This apparatus is available for processing and mixing small batches of polymers, from dry powders to highly viscous melts, under electrically controlled temperatures of up to 400 °C at various operating speeds (up to 100 rpm, 7.5 hp).
  • The types of mixers available include a 650-mL capacity head with fixed sigma blades and a dispersion trough for low viscosity fluids or dry powder blending; a 60/100-mL variable bowl capacity with exchangeable roller, cam and sigma blades and a ram closure with provision for inert-gas injection; and a 30-mL-capacity head with roller blades and a similar ram closure. The roller blades create intensive mixing and impose a strong kneading force.

Information Provided

  • These blades are typically used with molten thermoplastics. The sigma blades are designed for low shear rates creating a tumbling and kneading force while imposing a strong compressive force
  • Applications include mixing of dry powders and solid-liquid systems. The cam blades are designed for medium shear rates and impose a combination of milling, mixing and shearing forces for application on elastomers.

Lab Location and Contact Information

Location:  Thermal Analysis, Rheology, and Polymer Processing Lab
Point of Contact: Dennis Ndaya