Nanfeng Barium Sulfate Precipitated 400 Mesh for Industrial Applications
Product Overview
Nanfeng Precipitated Barium Sulfate 400 Mesh is a premium-grade, synthetic barium sulfate engineered through controlled precipitation and advanced micronization processes. Compliant with GB/T2899-2008 and global industrial standards, this ultra-fine powder (D50: 10–15 µm) delivers 97–98% purity, 4.50 g/cm³ density, and 1,580°C thermal stability, making it an indispensable functional filler for coatings, plastics, batteries, ceramics, and specialty chemical formulations.
With its orthorhombic crystal structure and optimized particle morphology, Nanfeng Barium Sulfate ensures:
- Chemical Inertness: Insoluble in water, ethanol, and acids (except hot concentrated H₂SO₄).
- Low Oil Absorption (8–12 g/100g): Reduces resin demand while enhancing coating rheology.
- Anti-Settling Properties: Non-sedimenting dispersion in both aqueous and solvent-based systems.
- Halogen-Free Composition: Ideal for eco-conscious formulations targeting REACH/ROHS compliance.
Certified under ISO 9001 and ISO 14001, Nanfeng Barium Sulfate is the sustainable choice for manufacturers prioritizing performance, cost efficiency, and regulatory alignment.
Key Features & Competitive Advantages
Superior Functional Performance
- Optical Enhancement: 95–97% ISO brightness ensures vibrant color development in coatings and plastics.
- Thermal Resilience: Withstands sintering temperatures up to 1,580°C (ceramic glazes) and 600°C carbon reduction processes (battery cathode production).
- Corrosion Resistance: Maintains integrity in pH 1–14 environments (ASTM D1308).
Process Optimization
- High Loading Capacity: Up to 40% filler incorporation in coatings without viscosity spikes (ASTM D2196).
- Grindability: Achieves Hegman fineness ≥7 in 30–40 minutes (ASTM D1210).
- Dispersion Stability: ≤0.5% sedimentation after 72h (ISO 1524).
Sustainability & Safety
- Heavy Metal-Free: Pb/Cd/As ≤5 ppm, compliant with EU Toy Safety Directive EN71-3.
- Low Dust Emission: Granulated form with ≤0.1% respirable particles (OSHA 1910.1000).
- Carbon-Neutral Production: 75% process water recycling and 50% renewable energy utilization.
Technical Specifications
| Parameter | Specification | Test Method |
|---|---|---|
| Chemical Composition | ||
| BaSO₄ Purity | ≥97.5% | XRF (GB/T 2899-2008) |
| Moisture Content | ≤0.2% | GB/T 5211.3 |
| Physical Properties | ||
| Particle Size (D50) | 10–15 µm (400 mesh) | Laser Diffraction (ISO 13320) |
| Specific Gravity | 4.45–4.55 g/cm³ | GB/T 21862.3 |
| Oil Absorption | 8–12 g/100g | GB/T 5211.15 |
| Performance Data | ||
| pH (10% Slurry) | 6.0–8.0 | GB/T 1717 |
| Whiteness (ISO) | ≥95% | ISO 2470 |
| LOI (1,000°C) | ≤0.5% | TGA (GB/T 4497.2) |
Application-Specific Benefits
1. Coatings & Inks
- Architectural Coatings:
- Enhances TiO₂ efficiency (15–20% replacement) while maintaining 90+ contrast ratio (ASTM D2805).
- Improves scrub resistance (≥8,000 cycles, ASTM D2486) and UV stability (QUV-A 1,500 hrs).
- Industrial Coatings:
- Reduces VOCs in solvent-based systems via low oil absorption.
- Provides anti-corrosion properties in epoxy primers (salt spray resistance ≥1,200 hrs, ASTM B117).
- Printing Inks:
- Boosts ink gloss (60° GU ≥90) and print sharpness via optimized particle packing.
- Stabilizes rheology for high-speed gravure printing (Brookfield viscosity ≤3,000 cP).
2. Plastics & Polymers
- Engineering Plastics:
- Increases PBT/PA66 tensile strength by 20–25% at 15% loading (ASTM D638).
- Improves dimensional stability under thermal cycling (-40°C to 180°C).
- PVC Products:
- Reduces plasticizer migration by 30% in flexible PVC (ASTM D1203).
- Enhances UV resistance for outdoor applications (ΔE ≤1.5 after 1,000 hrs Xenon exposure).
- Specialty Compounds:
- Flame-retardant synergist in halogen-free cables (UL94 V-0 achievable).
- Anti-static agent for electronic packaging (surface resistivity: 10⁹–10¹¹ Ω/sq).
3. Battery & Ceramic Industries
- Lithium-Ion Batteries:
- Cathode expansion agent improving cycle life by 15–20% (2,000+ cycles @ 1C).
- Enhances electrolyte wettability and ionic conductivity.
- Advanced Ceramics:
- Glaze component for high-gloss finishes (reflectance ≥85% @ 60°).
- Reduces thermal expansion coefficient (CTE) in kiln-fired products.
4. Paper & Construction Materials
- Paper Coating/Filling:
- Achieves 90–92 ISO brightness with 10–15% basis weight reduction.
- Improves printability and ink holdout (IGT pick test ≥1.5 m/s).
- Building Materials:
- Fire-resistant additive for gypsum boards (Class A ASTM E84).
- Densifier for cementitious composites (compressive strength +25%).
Production Process & Quality Control
- Raw Material Sourcing: High-purity barite ore (BaSO₄ ≥96%) and sulfuric acid (H₂SO₄ ≥98%).
- Precipitation Reaction:
- BaS + H₂SO₄ → BaSO₄↓ + H₂S↑ (controlled pH/temperature for crystal growth).
- Washing & Purification:
- 3-stage countercurrent washing to remove soluble impurities (Cl⁻ ≤50 ppm).
- Surface Modification:
- In-situ stearic acid coating (0.5–1.0% w/w) for hydrophobic dispersion.
- Drying & Classification:
- Spray drying + air-jet sieving to 400 mesh (D100 ≤45 µm).
- Quality Assurance:
- ICP-OES for heavy metals (Pb/Cd/As ≤5 ppm).
- SEM/EDS for particle morphology and purity analysis.
- Batch-wise GB/T 2899-2008 certification.
Competitive Comparison: Nanfeng vs. Alternatives
| Property | Nanfeng 400 Mesh | Natural Barite | Precipitated CaCO₃ |
|---|---|---|---|
| Purity (BaSO₄) | ≥97.5% | 92–95% | N/A |
| Oil Absorption | 8–12 g/100g | 15–20 g/100g | 18–25 g/100g |
| Thermal Stability | 1,580°C | 1,580°C | 800°C (decomposes) |
| Acid Resistance | Excellent (pH 1–14) | Good (pH 2–12) | Poor (pH |
| Cost Efficiency | $580–620/ton | $400–450/ton | $200–250/ton |
Why Choose Nanfeng Barium Sulfate?
- Technical Expertise: 20+ years of R&D in precipitation and surface modification technologies.
- Supply Chain Excellence: 30,000-ton annual capacity with ≤10-day lead time globally.
- Custom Solutions: Tailored particle sizes (200–3,000 mesh) and coatings (silane, titanate).
- Sustainability Leadership: Zero wastewater discharge and 85% recycled packaging materials.
| Form | White powder |
| BaSO4 content | 98.0% min |
| 105°C Volatile matter | 0.09 max |
| Water soluble matter | 0.13 max |
| Fe | 0.0012 max |
| Whiteness | 97.9 min |
| Oil absorption | 16.3 |
| Fitness | 0.01 |
| pH value | 7.3 |
| Sulfide content | 0.0016 max |
| D50 | 1.17 max |
| Conductivity | 68.2 μS/cm |
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| Company Name | Beijing TDD E-commerce Co., Ltd | Pays/Région | China |
| Type d'entreprise | Boutique en ligne | Taille de l'entreprise | 2000 |
| Établi | December 18, 2014 | ||
| Address | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
| Produits principaux | Résine PVC, PP, PE, Pet, Dioxyde de titane, Pigment, Pneus de voiture | ||
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À propos de Beijing United Information Technology Co., Ltd.
Beijing United Information Technology Co., Ltd. (Code boursier : 603613. SH), fondée en 2002 et cotée au Main Board en juillet 2019, est principalement engagée dans le commerce électronique industriel et les plateformes Internet industrielles. Basée sur le commerce électronique industriel et soutenue par les grandes données industrielles et la numérisation industrielle, l'entreprise fournit des services de négociation de produits en ligne, des services d'information commerciale et des services de technologie numérique pour les produits industriels et les matières premières destinées aux industries connexes. En termes de modèle commercial, elle est appelée "la version industrielle de Pinduoduo" et "la version industrielle de JD.com".
À propos de Beijing TDD E-commerce Co., Ltd.
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Beijing TDD E-commerce Co., Ltd. (nommée TDD Global) est la filiale principale de Guolian Corporation (Code boursier : 603613.SH) et la première plateforme Internet industrielle des plateformes de la série Duoduo. L'entreprise est principalement engagée dans les services de transaction de commerce électronique B28 de matières premières et de produits industriels, les services de chaîne d'approvisionnement numérique, les services de numérisation industrielle et les services de grandes données industrielles, et s'engage à promouvoir l'intégration profonde des industries traditionnelles et des nouvelles technologies telles qu'Internet, l'Internet des objets, les grandes données, la fabrication intelligente et la chaîne de blocs, etc.
Notre entreprise propose une variété de produits pouvant répondre à vos demandes multiples. Nous adhérons aux principes de gestion de "qualité d'abord, client d'abord et basé sur le crédit". Depuis la création de l'entreprise, nous faisons toujours de notre mieux pour satisfaire les besoins potentiels de nos clients.
Notre entreprise est sincèrement disposée à coopérer avec des entreprises du monde entier afin de réaliser une situation gagnant-gagnant, car la tendance de la mondialisation économique s'est développée avec une force irrésistible. |
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