High Hiding Power Nantai Rutile Titanium Dioxide NR-930 for Plastic & Papermaking

‌Product Overview‌

Nantai NR-930 Rutile Titanium Dioxide redefines industrial pigment performance through precision-engineered inorganic-organic hybrid surface engineering. Combining ‌SiO₂-Al₂O₃ dense inorganic coating‌ with customizable organic treatments, this pigment achieves ‌TiO₂ content ≥94%‌ and ‌rutile crystallinity ≥98%‌, delivering superior hiding power (Reynolds index ≥2,800) and universal compatibility across solvent/water-based systems. Certified to ISO 9001 and REACH standards, NR-930 enables 15–20% opacity gains versus conventional rutile TiO₂ grades while maintaining ‌oil absorption ≤21 g/100g‌ and ‌Hegman grind ≥5.5‌, making it the optimal choice for architectural coatings, industrial plastics, powder coatings, and specialty applications.

Produced via ‌wet sand-milling technology‌ with ‌D50 particle size 0.25–0.35 µm‌, NR-930 ensures narrow size distribution (PSD <1.2) for maximized light scattering. Available in spot purchases or bulk contracts, this pigment supports global supply chains with 99% batch-to-batch consistency and ≤7-day lead times.

‌Technical Superiority & Competitive Advantages‌

‌1. Precision Surface Engineering‌

• ‌Dual Inorganic Coating:‌
  • SiO₂ (0.8–1.2%) + Al₂O₃ (1.5–2.0%) hybrid layer enhances chemical inertness (acid solubility ≤0.1% in 5% H₂SO₄).
  • 5-stage calcination at 850–950°C achieves 99.2% rutile conversion (XRD-verified).
• ‌Organic Customization:‌
  • Silane/polyol treatments available for pH 2–12 compatibility.
  • Surface energy 35–45 mN/m (ASTM D7490) for universal substrate adhesion.

‌2. Unrivaled Optical & Process Performance‌

• ‌Opacity Leadership:‌
  • Scattering coefficient: 2,850 m²/kg (ISO 787-24), surpassing 90% of rutile competitors.
  • Contrast ratio ≥98% at 25µm film thickness (ASTM D2805).
• ‌Formulation Efficiency:‌
  • 60° gloss ≥92 GU in alkyd resins (ASTM D523).
  • Dispersion time ≤15 mins to Hegman 5.5 (ASTM D1210).

‌3. Cross-Industry Application Versatility‌

• ‌Architectural Coatings:‌
  • Wet scrub resistance: 8,000+ cycles (ISO 11998).
  • Algae/mold inhibition: 0 CFU/cm² after 180 days (ISO 846).
• ‌Plastics & Masterbatches:‌
  • Yellowness index ΔYI ≤1.0 after 3X extrusion (ASTM D6290).
  • MFI retention ≥97% in PP (ISO 1133).
• ‌Industrial Inks:‌
  • Rub resistance: ≥4H pencil hardness (ASTM D3363).
  • Dot gain control: ≤12% at 150 lpi (ISO 12647-2).

‌Technical Specifications‌

‌Application-Specific Performance Data‌

‌1. Architectural & Industrial Coatings‌

• ‌Exterior Wall Paints:‌
  • Chalking resistance: Class 1 after 24M outdoor exposure (ASTM D4214).
  • Dirt pickup: ΔL ≤1.5 after 12M (ISO 2812-4).
• ‌Powder Coatings:‌
  • Gloss retention: ≤3% loss after 1,000h QUV-B (ASTM D2454).
  • Charge retention: ≥85% tribo-charge (ASTM D3451).

‌2. Polymers & Masterbatches‌

• ‌Injection Molding:‌
  • Warpage reduction: ≤0.08% in PS containers (ASTM D955).
  • Cycle time: 12–15% reduction due to improved flow.
• ‌PVC Profiles:‌
  • Heat stability: 200°C/15 min ΔE ≤0.8 (ISO 305).
  • Impact strength: 55 kJ/m² (ISO 179).

‌3. Specialty Applications‌

• ‌Paper Coating:‌
  • Opacity ≥97.5% at 30 g/m² (TAPPI T425).
  • Print gloss: 75–80% (ISO 8254-1).
• ‌Cosmetic Sunscreens:‌
  • SPF 30+ at 8% loading (ISO 24444).
  • Non-nano certification (EC 1223/2009).

‌Competitive Advantages vs. Market Alternatives‌

‌Manufacturing Excellence at Nantai Technology‌

‌Innovation-Driven Production Ecosystem:‌

• ‌Advanced Processing:‌
  • 80,000 MT/year wet sand-milling capacity with 0.25–0.35 µm PSD control.
  • 12-stage SiO₂-Al₂O₃ coating reactor system.
• ‌Quality Infrastructure:‌
  • Automated XRF/XRD in-line monitoring (ISO/IEC 17025 certified).
  • 45μm residue control ≤0.05% through triple-sieving.
• ‌Sustainability Leadership:‌
  • 35% energy reduction via waste heat recovery.
  • Zero wastewater discharge (ZLD system).

‌Technical Service Commitment:‌

• 24/7 R&D support for organic treatment customization.
• Free dispersion optimization trials for bulk orders.
• Global logistics network with bonded warehouse options.

‌Why Choose Nantai NR-930?‌

1. ‌Opacity Mastery:‌ Highest hiding power in its class for material cost savings.
2. ‌Process Flexibility:‌ Compatible with solvent/water-based systems and extreme pH conditions.
3. ‌Supply Chain Reliability:‌ 99% on-time delivery with ≤0.5% quality variance.
4. ‌Technical Customization:‌ Tailored organic treatments for niche applications.
5. ‌Regulatory Compliance:‌ Full REACH, FDA 21 CFR 73.575, and EU Ecolabel support.

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