Calcium Carbonate 2000mesh Super Fine Powder for Rubber Industry

1. Fundamental Characteristics‌
Calcium carbonate (CaCO₃) represents a premium inorganic compound characterized by its exceptional versatility as a functional additive. This odorless, non-irritating white powder demonstrates superior stability across various industrial applications, offering manufacturers an optimal combination of economic viability and technical performance.

‌2. Key Physical Parameters‌

• ‌Appearance‌: Ultra-fine free-flowing powder
• ‌Particle Morphology‌: Rhombohedral crystalline structure
• ‌Mohs Hardness‌: 3.0
• ‌Specific Gravity‌: 2.7-2.9 g/cm³
• ‌Refractive Index‌: 1.59
• ‌Whiteness Index‌: ≥96% (ISO 2470 standard)
• ‌Moisture Content‌: <0.2% (inherently anhydrous)
• ‌Oil Absorption‌: 15-35 g/100g (adjustable)
• ‌Particle Size Range‌: 0.5-50μm (customizable distribution)

‌3. Chemical Properties‌

• ‌Water Solubility‌: 0.0013 g/100mL at 20°C
• ‌Solvent Resistance‌:
  • Insoluble in ethanol (<0.01g/100mL)
  • Non-reactive with aliphatic hydrocarbons
• ‌Acid Reactivity‌:
  • Reacts with HCl (10% solution) at 1.176 g/mL density
  • Dissolution rate in acetic acid: <0.1% at 25°C
• ‌Thermal Stability‌:
  • Decomposition initiates at 825°C (CaO + CO₂)
  • Thermal expansion coefficient: 4.4×10⁻⁶/°C
• ‌pH Value‌: 8.5-9.5 (10% aqueous suspension)

‌4. Competitive Advantages‌

• ‌Economic Efficiency‌:
  • Raw material cost reduction up to 40% vs. polymer resins
  • Bulk density optimization for transportation savings
• ‌Performance Enhancement‌:
  • 15-25% improvement in tensile strength (composite materials)
  • 30-50% increase in abrasion resistance (coating systems)
  • 0.5-1.5% linear expansion control (sealant formulations)
• ‌Sustainability Profile‌:
  • Carbon footprint reduction: 0.3-0.5 tCO₂/t product
  • Recyclability index: 98% in closed-loop systems
  • Bio-based alternatives available upon request

‌5. Industrial Applications & Functional Benefits‌

‌A. Polymers & Advanced Materials‌

• ‌PVC Compounds‌:
  • 10-30 phr loading capacity
  • Improves impact strength (15-20% ↑)
  • Reduces extruder torque (12-18% ↓)
• ‌Engineering Plastics‌:
  • Enhances HDT (Heat Deflection Temp) by 10-25°C
  • Lowers coefficient of friction (0.15-0.25 μ)
• ‌Elastomers‌:
  • 20-50% tear resistance improvement
  • Compression set reduction: 8-12%

‌B. Coating Systems‌

• ‌Architectural Paints‌:
  • 60-80% TiO₂ replacement capability
  • Wet scrub resistance: >10,000 cycles (ASTM D2486)
• ‌Industrial Coatings‌:
  • HVLP spray compatibility
  • Sag resistance: >250μm (ASTM D4401)
• ‌Powder Coatings‌:
  • Gloss control: 10-85 GU (60° angle)
  • Edge coverage enhancement

‌C. Paper Manufacturing‌

• ‌Filler Applications‌:
  • 5-35% substitution of wood pulp
  • Brightness improvement: 2-4 points ISO
• ‌Coating Pigments‌:
  • Parker Print Surf smoothness: <1.5 μm
  • IGT Pick velocity: >250 cm/s

‌D. Construction Materials‌

• ‌Tile Adhesives‌:
  • Open time extension: 25-40 minutes
  • Adjustable slump: 5-20 mm
• ‌Self-Leveling Compounds‌:
  • Flowability: 240-280 mm (EN 12706)
  • 24h compressive strength: >15 MPa

‌E. Food & Pharma Compliance‌

• ‌Direct Food Additive (E170)‌:
  • FCC VII compliant
  • Heavy metals: <10 ppm (Pb/As/Cd/Hg)
• ‌Pharmaceutical Excipient‌:
  • USP-NF/EP/JP standards
  • Microbial limits: <100 CFU/g
  • BET surface area: 4-8 m²/g

‌6. Technical Specifications‌

‌7. Packaging & Logistics‌

• ‌Standard Packaging‌:
  • 25kg multi-ply paper bags with PE liner
  • 1MT bulk bags with UV protection
• ‌Specialty Options‌:
  • 500kg super sacks with desiccant
  • Pharma-grade double PE packaging
• ‌Storage Conditions‌:
  • Temperature: <30°C
  • Humidity: <65% RH
  • Shelf Life: 36 months

‌8. Regulatory Compliance‌

• REACH registered (EC 207/2006)
• FDA 21 CFR 175.300 compliant
• EU Food Contact Regulation 10/2011
• Kosher & Halal certification available
• ISO 14001 environmental management

‌9. Safety & Handling‌

• ‌GHS Classification‌: Non-hazardous substance
• ‌PPE Requirements‌:
  • N95 respirator for airborne particles
  • Protective goggles during bulk handling
  • Chemical-resistant gloves (NEOPRENE®)
• ‌Fire Safety‌: Non-combustible (NFPA 704: 0-0-0)

This comprehensive technical profile demonstrates calcium carbonate's unmatched versatility as a high-performance, cost-effective solution across 20+ industries. Our product engineers provide customized particle engineering services to optimize dispersion characteristics, surface activation, and compatibility with your specific formulation requirements.

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