Polytetrafluoroethylene Liquid PTFE Aqueous Dispersion Battery Binder

Product Overview

This high-purity aqueous polytetrafluoroethylene liquid dispersion is engineered specifically as a high-performance binder and specialized coating agent for energy storage systems and advanced material research. Formulated with a stabilized sixty percent solids concentration of submicron fluoropolymer particles, the aqueous solution provides exceptional chemical inertness, wide electrochemical stability, and thermal resilience across extreme operating environments. It serves as an essential material for researchers and production engineers looking to achieve superior mechanical cohesion in active powder matrices without compromising ionic or electronic transport properties.

Primarily utilized in battery electrode manufacturing, supercapacitors, and fuel cell gas diffusion layers, this aqueous dispersion delivers unique shear-induced fibrillation behavior. Under controlled mechanical shear and calendering forces, the spherical PTFE submicron particles uncoil and interlock to form an interconnected three-dimensional fibrillar network. This micro-fiber skeleton firmly binds active material particles and conductive carbon additives to current collector substrates, enabling robust electrode fabrication for both aqueous processing routes and solvent-free dry electrode calendering workflows.

Beyond energy storage applications, this versatile dispersion serves critical roles in high-temperature non-stick coatings, chemical-resistant woven fiberglass fabric impregnation, dielectric capacitor cast films, and anti-dripping polymer compounding. Manufactured under strict quality controls to maintain consistent dispersion density, tight particle size distribution, and optimized pH levels, this formulation guarantees repeatable rheological performance, batch-to-batch uniformity, and dependable operational reliability under severe thermal and corrosive conditions.

Key Features

• High Solids Concentration (60% PTFE): Provides an optimized fluoropolymer density in an aqueous carrier, maximizing active binder deposition efficiency while reducing drying cycle times and energy consumption during electrode preparation.
• Controlled Submicron Particle Sizing (0.220 μm): Tightly distributed spherical particle architecture facilitates ultra-uniform mixing throughout fine cathode, anode, or ceramic powders, preventing agglomeration and ensuring homogeneous active mass distribution.
• Shear-Induced 3D Fibrillation: Uncoils into an extensive microscopic fibrillar web under controlled mechanical shear, mechanically locking electrode active materials and conductive additives together with minimal binder mass fraction.
• Broad Electrochemical and Thermal Stability: Resists oxidative and reductive degradation across wide operating voltage windows and sustains mechanical integrity across broad thermal ranges, eliminating electrolyte corrosion and binder dissolution.
• Stabilized Aqueous Formulation: Employs an optimized non-ionic surfactant system to maintain low room-temperature viscosity (25 MPa·s) and stable suspension characteristics, preventing phase separation during storage, handling, and slurry formulation.
• Environmentally Friendly Processing: Enables water-based electrode slurries and solvent-free dry film calendering, eliminating the need for hazardous, costly organic solvents such as N-Methyl-2-pyrrolidone (NMP) and expensive solvent recovery systems.
• Low Surfactant Residue Formulation: Engineered with clean thermal decomposition properties, allowing straightforward surfactant burn-off or thermal curing without leaving electrochemically active impurities or interfering with interface conductivity.

Applications

Technical Specifications

| Parameter | Test Method / Standard | Unit | Specified Value (FZ28) | | :--- | :--- | :--- | :--- |n| Product Item Number | Internal Tracking | — | FZ28 | | Packaging Configuration | Standard Container | g/bottle | 500 | | Solids Content (PTFE by weight) | ASTM D4441 / ISO 12086 | % | 60 | | Density of Dispersion (at 60% solids) | ASTM D4441 / ISO 12086 | g/cm³ | 1.51 | | Surfactant Content on PTFE Solids | ASTM D4441 / ISO 12086 | % | 6 | | Average Particle Diameter | Chemours / ISO 13321 | μm | 0.220 | | Dispersion pH Value | ASTM E70 / ISO 976 | — | 10 | | Brookfield Viscosity (at 25 °C / 77 °F) | ASTM D2196 / ISO 2555 | MPa·s | 25 |

Why Choose This Product

• Consistent Fibrillation Performance: High molecular weight polymer chains reliably generate uniform micro-fibrils under shear, ensuring strong mechanical binding at low additive percentages to preserve high active energy density in research and production electrodes.
• Stringent Quality and Traceability: Every production batch is certified against rigorous ASTM and ISO testing standards for solids content, particle sizing, surfactant percentage, and viscosity to guarantee reproducible rheological and electrochemical experimental results.
• Versatile Fabrication Adaptability: Compatible with laboratory planetary mixers, high-shear homogenizers, roll-to-roll calendering presses, and heated hydraulic compaction presses, supporting rapid transitions from experimental R&D to scalable pilot production.
• Long-Term Chemical Resilience: Completely non-reactive against standard organic carbonate electrolytes, ionic liquids, strong acids, and bases, preventing electrolyte contamination, binder swelling, or capacity fade over extended cycling.

Contact our technical engineering team today to request a quotation, discuss volume packaging options, or receive tailored integration advice for your battery electrode and material processing workflows.

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