Viscosity Reducer HFF-2918

Product introduction

HFF-2918 is a highly efficient viscosity reducing additive. It is used for dispersing high surface area powders such as lithium iron phosphate, conductive carbon black, graphene, carbon nanotubes, etc. HFF-2918 can significantly reduce the viscosity of polishing slurries, increase the solid content of the slurries, and improve their stability.

Principle of action

HFF-2918 is a high molecular weight polymer with acidic groups, and the specially designed anchoring groups firmly adsorb onto the surface of the dispersed particles. The soluble long chain groups extend into the solvent, stabilizing the particles through the spatial hindrance effect and preventing particle aggregation.

Dispersion Mechanism

Lithium iron phosphate (LFP) has a very large surface area, and the surfactant adsorbed on its surface is charged, and the electrostatic repulsion effect stably disperses the particles in NMP. When the surfactant is adsorbed on the particle surface, a volume effect occurs, and dispersion is achieved by the spatial exclusion effect.

Especially for nanoparticles, micelle formation has a stabilizing effect.

It has a strong adsorption effect and is particularly suitable for products with a high carbon content.

Product advantages

• HFF-2918 improves wetting performance, reduces polishing time and reduces viscosity of the slurry.

• It reduces the viscosity of lithium-ion battery positive electrode slurry, improves the flowability and flocculation of the slurry, and increases the powder loading.

• Adding HFF-2918 to the same slurry system can significantly reduce the viscosity and increase the solid content by 3% to 6% (the data varies with different particle sizes of lithium iron phosphate).

Basic characteristics

item	HFF-2918
exterior	Pale yellow liquid
Feeling	Characteristic scent
Solid Content	50% (adjustable)
Viscosity 25℃, mPa·S, 2# rotor, rotation speed 60r/min	< 100
density	1.0-1.1 g/cm³

HFF-2918 provides efficient viscosity reducing effect and high dispersibility in the manufacturing process of lithium-ion batteries, making it the ideal choice for improving product quality and production efficiency.