Polyvinylidene fluoride NMP solution disperser PVDF NMP homogenizer

Polyvinylidene fluoride NMP solution disperser PVDF NMP homogenizer

PVDFIt is the abbreviation for polyvinylidene fluoride,PVDFPolyvinylidene fluorideMMP(usually referring to modified or specific solvent formulations, such asN-Methyl pyrrolidoneNMPBasic solutions have important applications in the new energy industry，especiallyApplications in lithium-ion batteries:

(1)Electrode binder

Function:PVDFSolution as positive electrode (such as lithium cobalt oxide)LCOLithium iron phosphateLFPThree element materialsNCM/NCA）Adhesive with negative electrode (such as graphite, silicon carbon), adhering active material, conductive agent (such as carbon black) to current collector (aluminum foil)/On copper foil.

Advantages: Excellent chemical stability and electrochemical inertness, resistant to electrolytes (such as carbonate solvents).

High bonding strength ensures that the electrode structure does not detach during charge and discharge cycles.

Moderate swelling property, conducive to electrolyte infiltration.

(2)Diaphragm coating

Function:PVDFSolution coating on polyolefin membranes (such asPE/PP）Surface, enhanced diaphragm:

Advantages: Thermal stability, preventing short circuits caused by high temperature shrinkage.

Electrolyte affinity improves liquid absorption rate and ion conductivity.

Mechanical strength reduces the risk of dendrite piercing.

PVDFofNMPSolution characteristics:

(1)Composition ratio:

Common Proportions:PVDFquality score5-10%(such as8% PVDF + 92% NMP）.

(2)Solubility:

PVDFInNMPMedium dissolution requires heating (usually50-60℃) and stir for several hours untilcompleteTransparent).

NMPyesPVDFIdeal solvent (polar non proton, strong hydrogen bond acceptor ability).

traditionPVDFSolution preparation methods (magnetic stirring, planetary stirring, ultrasonic dispersion, etc.) still have applications in laboratories and small-scale production, but they have low efficiency(Generally required)1-3Hour)Poor uniformity(prone to agglomeration, requiring additional filtering)Difficult to quantify high solid content(Solid content generally<)8%）Wait for the question.

GMSD2000seriesSijun Machinery relies on German technology and independently develops and designs an ultra high speed grinding and dispersing machine specifically designed for high viscosity and difficult to disperse materials,fromOrganic combination of colloid mill and disperser.

The first level consists of three-level sawtooth protrusions and grooves with increasing precision. The stator can be infinitely adjusted to the desired distance between it and the rotor. Under enhanced fluid turbulence, grooves can change direction at each stage.

第twoLevel byDispersing blade head of fixed rotorform. Due to the high tangential velocity generated by the high-speed rotation of the rotor and the strong kinetic energy brought by high-frequency mechanical effects, the material is subjected to strong mechanical and hydraulic shear, centrifugal extrusion, liquid layer friction, impact tearing, and turbulence in the narrow gap between the stator and rotor,acceleratedPVDFThe rapid dissolution makes the solution more uniform and delicate.

pass throughGMSD2000Series grinding and dispersing machine processing30A minute long solution can achieve uniformity, delicacy, and almost transparencyPVDFSolution:

Equipment level: chemical grade, hygiene level I, hygiene level II, sterile grade
Motor forms: ordinary motor, variable frequency speed regulation motor, explosion-proof motor, variable frequency explosion-proof motor
Power supply selection: 380V/50HZ, 220V/60HZ, 440V/50HZ
Motor accessories: PTG thermal protection, noise reduction type
Grinding and dispersing machine materials: SUS304, SUS316L, SUS316Ti, zirconia ceramic
Grinding and dispersing machine optional: storage tank, drain valve, frequency converter, electric control box, mobile cart
Surface treatment of grinding and dispersing machine: polishing, wear-resistant treatment
Import and export connection forms: flange, screw, clamp
Container selection for grinding and dispersing machine: This equipment is suitable for containers of various sizes

Polyvinylidene fluoride NMP solution disperser PVDF NMP homogenizer