Acetylene Carbon Black
Acetylene Carbon Black – High-Quality Conductive Carbon Black for Industrial Applications
Acetylene Carbon Black is a premium-grade conductive carbon black produced through the thermal decomposition of acetylene gas. This specialized form of carbon black offers superior electrical conductivity, high purity, and excellent physical properties making it ideal for demanding industrial applications.
Key Features of Our Acetylene Carbon Black:
- High electrical conductivity (10-30 S/cm)
- Low volatile content (<0.5%)
- Specific surface area: 60-80 m²/g
- Particle size: 30-50 nm
- Dibutyl phthalate (DBP) absorption: 60-120 ml/100g
- Ash content: <0.05%
Technical Specifications Table
| Parameter | Value | Test Method |
|---|---|---|
| Iodine Adsorption Number | 40-60 g/kg | ASTM D1510 |
| pH Value | 6.0-8.5 | ASTM D1512 |
| Heating Loss | ≤0.5% | ASTM D1509 |
| Resistivity | 0.1-0.3 Ω·cm | ASTM D991 |
Applications of Acetylene Carbon Black
Our Acetylene Carbon Black is widely used in:
- Lithium-ion batteries and conductive additives
- Plastic and rubber antistatic applications
- Conductive coatings and paints
- Electronic components and EMI shielding
- Printing inks and toners
Acetylene Carbon Black FAQ
Q: What makes Acetylene Carbon Black different from other carbon blacks?
A: Acetylene Carbon Black is produced through a unique thermal decomposition process of acetylene gas, resulting in particles with high structure and excellent conductivity. Compared to furnace blacks or channel blacks, it offers superior electrical properties, lower impurity content, and more consistent particle morphology.
Q: What is the shelf life of Acetylene Carbon Black?
A: When stored properly in original, unopened containers at room temperature and protected from moisture, Acetylene Carbon Black has a shelf life of at least 24 months. Opened containers should be resealed tightly and used within 6 months for optimal performance.
Q: How does Acetylene Carbon Black compare to conductive graphite?
A: While both materials offer conductivity, Acetylene Carbon Black typically provides higher conductivity at lower loading levels compared to graphite. It also offers better dispersibility in most polymer systems and maintains conductivity more consistently under mechanical stress due to its unique chain-like aggregate structure.
Handling and Safety Information
Acetylene Carbon Black should be handled with appropriate personal protective equipment including dust masks, gloves, and eye protection. The product is classified as a nuisance dust - avoid creating airborne dust and provide adequate ventilation in work areas.
Packaging Options
We offer Acetylene Carbon Black in various packaging configurations to meet different customer needs:
- 25 kg multi-wall paper bags with PE liner
- 500 kg bulk bags with discharge spout
- Custom packaging available upon request
More Acetylene Carbon Black FAQ
Q: What is the recommended loading percentage for conductive applications?
A: The optimal loading depends on the specific application and polymer system. For most conductive plastic applications, loading levels between 10-20% by weight typically achieve the desired conductivity. We recommend starting with 15% and adjusting based on performance testing.
Q: Can Acetylene Carbon Black be used in food contact applications?
A: Our standard Acetylene Carbon Black is not specifically approved for food contact applications. However, we do offer special food-grade versions that meet FDA and EU food contact regulations. Please contact our technical team for specific food-grade options.
Q: What dispersion methods work best for Acetylene Carbon Black?
A: For optimal dispersion, we recommend using high-shear mixing equipment. Three-roll mills, twin-screw extruders, or high-speed dispersers with appropriate blades all work well. Pre-mixing with a portion of the carrier liquid or resin before adding remaining components helps achieve uniform dispersion.
Quality Assurance
Our Acetylene Carbon Black is produced under strict quality control with:
- ISO 9001 certified manufacturing
- Batch-to-batch consistency testing
- Comprehensive material safety data sheets
- Custom technical support available
Additional Acetylene Carbon Black FAQ
Q: How does particle size affect performance?
A: Smaller particle sizes (30-40 nm) typically provide better conductivity at lower loadings due to increased particle contacts, while slightly larger particles (40-50 nm) may offer easier dispersion and better flow characteristics in some applications. Our standard product balances these factors for most general conductive applications.
Q: What temperature range can Acetylene Carbon Black withstand?
A: Acetylene Carbon Black is thermally stable up to approximately 500°C in inert atmospheres and 350°C in air. Above these temperatures, gradual oxidation may occur. For high-temperature applications, we recommend testing under your specific conditions.
Q: Can Acetylene Carbon Black be surface treated?
A: Yes, we offer surface-treated versions for improved compatibility with specific polymer systems. Common treatments include oxidation for improved polar compatibility or silane treatments for better bonding in silicone matrices. Custom surface modifications are available upon request.