PTFE-P POLYFLON PTFE Powder

PTFE (polytetrafluoroethylene) fine powder is a specialised dry electrode binder used to mechanically bind active materials and conductive additives without relying on solvent-based slurry processing. In dry mixing and high-shear blending, PTFE can fibrillate (form micro-fibrous networks), creating a robust mechanical scaffold that improves cohesion within the electrode film and adhesion to current collectors.

Working Mechanism in Dry Electrodes

During shear and calendering, PTFE particles deform and interlock, forming a fibrous matrix that:

• improves electrode integrity during handling and roll pressing
• helps maintain conductive pathways between active material and carbon additive
• supports stable electrode structure during cycling-induced stress
  
  

Key Specifications (Typical)

• Appearance: Good (visual inspection)
• Bulk density: 0.47 g/mL
• Standard specific gravity: 2.160
• Average particle size: 680 µm
• Extrusion pressure (RR36): 130 daN
  
  

Compatibility and Use

This PTFE binder is commonly used in:

• Lithium-ion battery dry electrode formulations (cathodes and select anode systems)
• Supercapacitor electrodes requiring solvent-free processing
• lab-scale or pilot-scale electrode fabrication workflows involving dry blending + hot/roll calendering
  
  

Why Source Through ScienceGears

ScienceGears supports Australian & New Zealand researchers with product selection guidance, practical handling tips for dry processing, and integration advice with adjacent research workflows. For complete electrochemical development, pair dry electrodes with battery cyclers, potentiostats, and relevant electrochemical cells to validate impedance, rate performance, and durability in a controlled test setup.