Carbon Black N220 High Performance for Rubber Industry

Product Overview
Carbon black is an amorphous form of elemental carbon characterized by its extremely fine particle size and high surface area. Produced through the controlled thermal decomposition of hydrocarbon feedstocks under oxygen-deficient conditions, this engineered material serves as both a premium pigment and functional additive across multiple industries.

Manufacturing Process
 Production Methods

• Furnace Black Process (90% of global production)

• Thermal Black Process (for larger particle grades)

• Acetylene Black Process (high-purity applications)

 Key Process Parameters

• Reaction temperature: 1200-1600°C

• Precise air-to-fuel ratio control

• Quenching mechanisms

• Post-production treatments

Physical Characteristics

• Appearance: Ultrafine black powder

• Specific Gravity: 1.8-2.1 g/cm³

• Primary Particle Size: 10-500 nanometers

• Aggregate Structure: Complex branched formations

• Surface Area: 20-1500 m²/g (BET nitrogen adsorption)

• Bulk Density: 30-50 lb/ft³ (480-800 kg/m³)

Chemical Properties

• Carbon Content: ≥97%

• Surface Chemistry: Variable oxygen groups

• pH Range: 2.0-11.0 (aqueous suspension)

• Volatile Content: 0.1-10% (weight loss at 950°C)

Grade Classification System
| Grade Type | Average Particle Size | Typical Applications |
|------------|----------------------|----------------------|
| N100 | 10-20 nm | High-performance tires |
| N200 | 15-25 nm | Premium rubber goods |
| N300 | 20-30 nm | General rubber products |
| N500 | 40-60 nm | Plastics, inks |
| N600 | 60-80 nm | Paints, coatings |
| N700 | 80-200 nm | Toners, ceramics |

Functional Applications
 Pigmentation Uses

• Traditional Inks:

  • Chinese calligraphy inks

  • Sumi-e painting materials

  • Seal pastes and stamps

• Printing Industry:

  • Offset printing inks

  • Flexographic inks

  • Digital toner formulations

• Coatings:

  • Automotive finishes

  • Industrial protective coatings

  • Conductive paints

 Rubber Reinforcement

• Tire tread compounds (passenger/OTR)

• Sidewall formulations

• Mechanical rubber goods

• Conveyor belt coatings

Performance Advantages
 As a Pigment

• Unmatched jetness (L* value <16)

• Excellent UV absorption

• High tinting strength (≥120%)

• Outstanding lightfastness

• Thermal stability to 400°C

 In Rubber Compounds

• Tensile strength improvement: 200-400%

• Abrasion resistance: 300-500% increase

• Tear resistance enhancement

• Dynamic property optimization

• Electrical conductivity control

Technical Specifications for Paint Applications

• Color Strength: 100-150% (vs. standard)

• Mass Tone: Neutral black

• Undertone: Blue/brown options

• Hegman Grind: ≥6.5

• Oil Absorption: 70-130 g/100g

Surface Modification Options

• Post-oxidation treatment

• Silane coupling agents

• Polymer encapsulation

• Specialty coatings

Quality Control Parameters

• Iodine Adsorption Number (ASTM D1510)

• DBP Absorption (ASTM D2414)

• Tint Strength (ASTM D3265)

• Sieve Residue (ASTM D1514)

• Volatile Content (ASTM D1509)

Health and Safety

• OSHA PEL: 3.5 mg/m³ (8-hour TWA)

• Proper PPE: NIOSH-approved respirator

• Handling: Minimize dust generation

• Storage: Dry, ventilated areas

Environmental Profile

• Carbon footprint: 2.5-3.5 kg CO₂/kg

• Recyclability: Incorporated into matrices

• REACH compliant

• RoHS compliant

Packaging Options

• 25 kg multi-wall paper bags

• 500 kg super sacks

• Bulk railcar loading

• Dedicated silo systems

Technical Support Services

• Formulation development

• Dispersion optimization

• Performance testing

• Regulatory compliance

Emerging Applications

• Lithium-ion battery anodes

• Conductive polymers

• EMI shielding

• Advanced composites

This specification highlights carbon black's dual functionality as both an exceptional pigment and performance-enhancing additive. Its unique properties continue to enable innovations across traditional and emerging applications.