Toynol® DS-172 Grinding Dispersant for Conductive Carbon Black
Toynol® DS-172 Grinding Dispersant for Conductive Carbon Black in Waterborne Systems
Abstract
Toynol® DS-172 is a high-molecular-weight block copolymer dispersant developed to solve the dispersion stability problems of conductive carbon black in waterborne systems. Its core functions are stabilizing conductive carbon black dispersion through charge repulsion, significantly reducing system viscosity, and improving electrical conductivity and storage stability. Compared with conventional approaches, it is especially suitable for ultra-fine powders such as super-conductive carbon black and conductive carbon black, and it is APEO-free, making it a suitable option for high-end applications such as lithium-ion battery electrode materials, waterborne conductive coatings, and inks.
Key Performance Indicators
| Performance | Value |
|---|---|
| Dispersion stability | Effectively stabilizes conductive carbon black dispersion through charge repulsion |
| Viscosity control | Significantly reduces grinding system viscosity, improving production efficiency |
| Electrical conductivity | Improves the conductivity of coatings or electrode materials |
| Environmental properties | APEO-free |
Main Features and Advantages
- High-efficiency dispersion stability: Prevents carbon black particle agglomeration through charge repulsion, ensuring long-term storage stability.
- Viscosity optimization: Significantly reduces the viscosity of high-solids carbon black paste, improving processing flowability.
- Conductivity enhancement: Optimizes the carbon black dispersion state, improving the electrical conductivity of the final product.
- Broad-spectrum applicability: Suitable for various carbon black materials such as super-conductive carbon black and conductive carbon black.
Recommended Application Fields
- Lithium-ion battery electrode materials: Used in cathode and anode slurry preparation to effectively disperse conductive carbon black, improving electrode conductivity uniformity and battery cycle performance; especially suitable for high-energy-density power battery systems.
- Waterborne conductive coatings: Used in electromagnetic shielding coatings, antistatic floor coatings, and others to improve carbon black dispersion and ensure coating conductivity uniformity, meeting the conductivity requirements of electronics plants, medical cleanrooms, and other settings.
- Waterborne conductive inks: Suitable for conductive inks in printed electronics, RFID antennas, flexible circuits, and other fields, improving printability and conductivity stability and supporting high-precision patterned printing.
- Conductive adhesives: Used in conductive adhesives for electronic packaging, touchscreens, and other fields, improving carbon black dispersion and conductivity reliability.
- Specialty coatings: Used in antistatic coatings, heating coatings, and other specialty applications, ensuring coating functional stability.
Usage and Recommended Dosage
Addition sequence: For optimum performance, the DS-172 dispersant must be added to the grinding base first, fully mixed, and then the conductive carbon black is added for grinding.
Dispersion process: High-speed dispersion or bead milling is recommended to ensure full carbon black dispersion.
Recommended dosage (based on as-supplied form, calculated on carbon black powder weight):
- Super-conductive carbon black: 60%-200%
- Conductive carbon black: 60%-160%
Optimization advice: The specific dosage should be determined through dosage screening based on the carbon black type, target solids content, and performance requirements.
Safety and Storage
- Safety precautions: Wear appropriate personal protective equipment (such as safety goggles and gloves) during handling. If the product contacts the skin, rinse immediately with water; if it enters the eyes, rinse immediately with plenty of water and seek medical attention.
- Storage conditions: Store sealed in a cool, well-ventilated, dry place, away from high temperatures and freezing. Recommended storage temperature range: 5 °C to 40 °C.
- Packaging: 25 kg drums, 200 kg drums.
- Shelf life: Under the specified storage conditions, the shelf life is 24 months from the date of manufacture.
Frequently Asked Questions
Q: How does DS-172 improve the electrical conductivity of conductive carbon black systems?
A: DS-172 disperses carbon black particles uniformly through charge repulsion, avoiding agglomeration and forming a more continuous conductive network, thereby significantly improving conductivity efficiency.
Q: Is this product suitable for other types of carbon materials (such as carbon nanotubes, graphene)?
A: DS-172 is optimized for conductive carbon black. For other carbon materials such as carbon nanotubes or graphene, a small-scale test is recommended to verify compatibility and performance.
Q: In lithium-ion battery slurry, will DS-172 affect electrode bonding performance?
A: No. DS-172 is highly compatible with common binders (such as PVDF and CMC). At the correct dosage it will not weaken bonding strength; instead, it improves electrode uniformity through better dispersion.
Q: How is the optimum dosage determined through testing?
A: It is recommended to start from the midpoint of the recommended dosage, prepare slurries at different dosages, test viscosity, resistivity, and storage stability, and determine the optimum ratio comprehensively.
Contact Us
- If you need free samples, a detailed Technical Data Sheet (TDS), or a Safety Data Sheet (SDS), or if you have any technical questions, please contact us at any time:
- Company: Tianjin Hi-Perferal Advanced Materials Co., Ltd.
- Address: No. 2-1, Zhenghua Road, Caozili, Wuqing District, Tianjin
- Technical service hotline: 022-82910362
- Website: www.surfychem.com