PTFE Polytetrafluoroethylene Liquid PTFE Fluoroplastic Dispersion

PTFE is a liquid PTFE fluoroplastic dispersion designed as a binder for battery anode or cathode matrices, and is also suitable for supercapacitor electrode fabrication. PTFE (–CF₂–CF₂–)ₙ is chemically inert and thermally stable, making it valuable where electrode cohesion and durability are critical.

Working mechanism

This product is an aqueous dispersion of sub-micron PTFE particles stabilised by surfactants. During electrode processing, PTFE particles distribute through the solids network and, upon drying and mechanical working (e.g., mixing/calendering), can form a reinforcing, fibre-like framework that improves particle-to-particle cohesion and adhesion to current collectors. The PTFE network can also help tune hydrophobicity and gas/electrolyte transport pathways, which is useful in porous electrodes and catalyst layers.

Key specifications (typical)

• PTFE solids content: 60 wt%
• Dispersion density (at 60% solids): 1.51 g/cm³
• Surfactant content on PTFE solids: 6%
• Average particle size: 0.220 µm
• pH: 10
• Brookfield viscosity (25 °C): 25 mPa·s
  
  

Compatibility & use cases

• Compatible with common electrode fabrication workflows (slurry mixing and coating; porous matrix impregnation; formulation as an additive).
• Typical applications: Li-ion / Na-ion electrodes, porous catalyst layers, supercapacitor electrodes, and other electrochemical electrodes requiring robust mechanical binding.
  
  

Why source via ScienceGears

ScienceGears can support PTFE-binder selection and workflow integration alongside complementary tools such as potentiostats, battery cyclers, electrode coating/processing accessories, and in-situ electrochemical / spectroscopy setups—helping researchers move from formulation to reliable testing faster.