Electronic material dispersants DP60

• DP60 Electronic material dispersants

DP60 dispersant This product is an innovative polyester-amine block copolymer aqueous solution. It realizes the construction of a three-dimensional network structure through molecular design. It is specially developed to solve the agglomeration problem of carbon-based nanomaterials (graphene, tiub nano karbon, Dll.) and lithium-ion battery materials (silicon-carbon anode, ternary cathode, Dll.) during wet grinding and spray drying. Characterized by FTIR and GPC, its molecular weight distribution D50 = 2000-5000Da, containing 30% active amino groups (calculated in KOH).

• Data Produk

Komposisi：

It is a polymer containing multiple functional groups.

The structure is as follows:

Polyester segment: Contains carboxylic acid/ester functional groups;

Amino segment: Contains quaternary ammonium salt modified groups

Core mechanism:

1. Multi-level dispersion system: The primary steric hindrance layer is formed by the flexible winding of polyester chains.
2. Stereo-anchoring effect: The amino functional group forms a coordination bond with the surface defect sites of the carbon material.
3. Solvent synergy: Forming a hydrogen bond network with NMP to improve mass transfer efficiency.

Sifat Biasa：

Appearance: light-colored transparent liquid

Viscosity: 120-180s (25℃, 4# cup)

Solid content: ≥99.5%

Nilai amina: 28-32mg/g (KOH)

PH value: 8.5-9.5 (25℃)

Density: 1.15-1.25g/cm³ (25℃)

Water content: ≤0.1%

*, Nilai yang ditunjukkan dalam data ini menerangkan sifat biasa dan tidak membentuk had spesifikasi.

• Aplikasi

Recommended application process:

1. Nano-scale wet grinding process

Process flow: raw material pre-dispersion → high-speed shear emulsification (12000rpm, 20min) → grinder (3000rpm, 4h, temperature control 50℃) → centrifugal impurity removal (12000g, 20min) → vacuum drying (60℃, -0.09MPa)

Tahap yang disyorkan：

①、Recommended dispersant addition: 20~50% (relative to carbon material)

②、Grinding media: zirconium oxide beads (Φ0.5mm, accounting for 80%)

*. Data di atas adalah dos empirikal, dan dos optimum perlu ditentukan melalui satu siri ujian.

2. Spray drying process optimization

• Typical application cases

Case 1: Preparation of graphene quantum dot dispersion

Formula: 10g graphene quantum dots + 3g HHDF-60 + 80ml deionized water

Effect: DLS measured particle size 8nm (PDI<0.3), transmittance>92%@550nm

Case 2: Silicon-carbon composite negative electrode slurry

Process: 15kg Si-C particles + 1kg HH-DF60 + 60kg NMP

Performance: slurry viscosity 3000cP@60rpm, tap density 1.4g/cm³

• Safety and environmental protection data

• Technical advantages

1. Low temperature stability: can remain stable for more than half a year below 40°C (accelerated test verification)
2. Multi-material universality: also effective for wide bandgap materials such as LiFePO4 and TiO2
3. Process compatibility: seamless connection with existing lithium battery production lines, transformation cost <5%

• Packing specifications

1*25Kg; 1*1000kg plastic barrel; packaging can be selected according to customer requirements.

• Storage & Transportation

Warning: This product is flammable, with a flash point of 90℃. Ventilation and explosion-proof are required during operation. Store in a cool and ventilated place, and avoid exposure to sunlight.

• Shelf life

The shelf life of unopened products is 18 months from the date of production.

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The data in this manual are based on laboratory tests and typical working conditions. For actual application, please refer to the results of small tests. It is recommended to establish a material compatibility database and monitor the dispersion state in real time through surface contact angle (θ<30°) and Zeta potential (ζ>+30mV).