Carbon Black N326 High Performance Powder for Rubber Industry

Material Overview‌

Carbon black represents a critical engineered material in modern industry, characterized by its unique combination of optical, electrical, and mechanical enhancement properties. This amorphous carbonaceous powder, produced through controlled pyrolysis of hydrocarbons, serves dual functions as both a premier black pigment and a performance-enhancing filler. With its exceptionally fine particle size (15-300nm) and high surface area (25-1500 m²/g), carbon black delivers unparalleled functionality across rubber, coatings, plastics, and specialty chemical formulations.

‌Key Technical Specifications‌

‌Physical Characteristics‌

• ‌Particle Structure‌: Complex fractal aggregates with 1.8-2.1 g/cm³ apparent density
• ‌Surface Chemistry‌: Oxygen-containing functional groups (0.1-5.0% volatile content)
• ‌Morphology‌: Spherical primary particles (10-80nm) forming chain-like aggregates
• ‌Electrical Properties‌: 0.1-100 Ω·cm resistivity (tailorable for conductive grades)

‌Performance Parameters‌

• ‌Tinting Strength‌: 100-300% relative to standard channel blacks
• ‌Oil Absorption‌: 65-300 ml/100g (DBP absorption method)
• ‌pH Value‌: 2.5-11.0 (surface treatment dependent)
• ‌Thermal Stability‌: Maintains integrity up to 400°C in inert atmospheres

‌Manufacturing Process‌

Produced through advanced furnace black technology, our carbon black undergoes precise thermal decomposition of heavy aromatic oils at 1200-1600°C under oxygen-limited conditions. This controlled process enables:

• ‌Structure Control‌: Adjustable aggregate size (10-500nm) through reactor kinetics
• ‌Surface Modification‌: In-situ creation of carboxyl/hydroxyl groups for enhanced compatibility
• ‌Grade Differentiation‌: Tailored iodine adsorption numbers (30-180 g/kg) for specific applications

‌Cross-Industry Applications‌

‌Rubber Reinforcement‌

• ‌Tire Manufacturing‌:
  Improves treadwear resistance by 40-60% (ASTM D5963)
  Enhances wet traction through optimized silica-carbon hybrid systems
  Reduces rolling resistance by 15-25% in fuel-efficient tire compounds

• ‌Industrial Rubber Goods‌:
  Boosts tensile strength in NBR seals by 200-300%
  Provides 50-70% improvement in abrasion resistance for conveyor belts

‌Pigmentation Systems‌

• ‌Printing Inks‌:
  Achieves optical density >1.8 (TAPPI T519) at 15-25% loading
  Maintains stable rheology in UV-curable formulations

• ‌Coatings & Paints‌:
  Provides jetness values (L* <15) surpassing organic pigments
  Enhects UV protection for exterior applications (5+ year weatherability)

• ‌Plastics Coloring‌:
  Delivers <0.5% color shift after 3000h QUV exposure
  Enables conductive pathways in EMI shielding compounds

‌Specialty Applications‌

• ‌Battery Technologies‌:
  Serves as conductive additive in Li-ion cathodes (1-3% loading)
  Maintains >99% capacity retention after 500 cycles

• ‌Electronics‌:
  Provides static dissipation in polymer housings (10⁶-10⁹ Ω/sq)
  Enhects radar absorption in stealth coatings (8-12 GHz range)

• ‌Construction Materials‌:
  Improves asphalt durability with 30-50% rutting resistance increase
  Acts as photocatalytic agent in self-cleaning concrete

‌Competitive Advantages‌

‌Performance Enhancement‌

• 200-400% elongation improvement in SBR rubber compounds
• 0.5-1.5% UV absorption across 200-400nm spectrum
• 50-80% reduction in compound cure time through enhanced heat transfer

‌Economic Value‌

• Enables 15-30% polymer cost reduction through filler extension
• Reduces pigment loading requirements by 40-60% versus organic alternatives
• Lowers energy consumption in extrusion processes by 10-20%

‌Technical Superiority‌

• Surface area control (±5% batch consistency)
• Aggregate structure customization (1-100 μm dispersions)
• Ionic contamination <50 ppm for electronic grades

‌Quality Assurance‌

• ‌Purity‌: >97% carbon content (ASTM D1506)
• ‌Particle Size‌: Laser diffraction verified (ISO 13320)
• ‌Safety Compliance‌:
  IARC Group 3 classification (non-carcinogenic)
  TSCA/REACH registered
  RoHS 2.0 compliant

‌Sustainable Production‌

• Utilizes 85-95% feedstock conversion efficiency
• Implements closed-loop quench systems for water conservation
• Recovers 98% process heat for energy generation
• Offers bio-based variants from renewable feedstocks

‌Customization Services‌

• ‌Surface Modification‌:
  Silane grafting for polymer compatibility
  Graphitization for enhanced conductivity
  PEG coating for aqueous dispersion

• ‌Specialty Grades‌:
  FDA-compliant for food contact applications
  Low-dusting pellets for improved handling
  Ultra-clean grades for semiconductor packaging

This premium carbon black combines nature's elemental simplicity with cutting-edge manufacturing technology to deliver solutions for tomorrow's material challenges. Our technical team provides application-specific support from formulation optimization to regulatory compliance, ensuring maximum value creation in your products.

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