Wufeng Weitai Nano Barium Sulfate 8000 Mesh for Ultra-Fine Coatings
Product Overview
Wufeng Weitai Nano Calcium Carbonate 8000 Mesh is a premium-grade, ultrafine calcium carbonate powder engineered through advanced micronization and surface modification technologies. With a meticulously controlled particle size distribution (D97 ≤ 3.5 µm) and an ultra-high specific surface area (18–22 m²/g), this product delivers exceptional performance as a multifunctional filler and modifier across industries including plastics, rubber, coatings, papermaking, cosmetics, and specialty chemicals.
Derived from natural high-purity calcite ore and processed via a zero-waste, eco-friendly production system, this nano calcium carbonate offers:
- Ultra-High Whiteness (≥97% ISO): Ideal for applications requiring optical brightness and color consistency.
- Chemical Stability (pH 8.5–9.5): Resists acid/alkali corrosion and thermal decomposition (<1,200°C).
- Low Oil Absorption (22–26 g/100g): Reduces resin demand and formulation costs.
- Narrow Particle Distribution (PDI <0.3): Ensures uniform dispersion and eliminates agglomeration.
Certified under ISO 9001, REACH, and FDA 21 CFR, this product meets stringent global standards for safety, sustainability, and performance consistency.
Key Features & Competitive Advantages
Superior Functional Performance
- Mechanical Reinforcement: Enhances tensile strength (up to 30%), impact resistance (20–25%), and bending modulus in polymer matrices (ASTM D638/D790).
- Thermal Stability: Withstands temperatures up to 1,200°C without decomposition, ideal for high-temperature plastics and rubber vulcanization.
- Surface Modification: Stearic acid-coated variants improve hydrophobicity and polymer compatibility (contact angle ≥110°).
Cost Efficiency & Process Optimization
- TiO₂/Plasticizer Replacement: Reduces titanium dioxide usage by 15–20% in coatings and PVC compounds while maintaining opacity (ISO 6504-1: ≥95%).
- Rheology Control: Thixotropic behavior prevents sagging in vertical coatings and improves mold flow in injection molding (MFI improvement: 10–15%).
- Energy Savings: Lowers extrusion torque by 12–18% in polyolefin processing (ASTM D1238).
Sustainability & Safety
- Heavy Metal-Free: Compliant with EU Toy Safety Directive EN71-3 (Pb/Cd/As ≤1 ppm).
- Eco-Certified Production: 85% closed-loop water recycling and 60% renewable energy usage.
- Food/Pharma Compliance: Meets USP/NF and China Pharmacopeia standards for oral/dermal applications.
Technical Specifications
| Parameter | Specification | Test Method |
|---|---|---|
| Chemical Composition | ||
| CaCO₃ Purity | ≥98.5% | XRF Analysis (ISO 29581) |
| Moisture Content | ≤0.5% | ISO 787-2 |
| Physical Properties | ||
| Particle Size (D97) | ≤3.5 µm | Laser Diffraction (ISO 13320) |
| Specific Surface Area | 18–22 m²/g | BET (ISO 9277) |
| Brightness (ISO) | ≥97% | ISO 2470 |
| Performance Data | ||
| Oil Absorption | 22–26 g/100g | ISO 787-5 |
| pH (10% Aqueous Slurry) | 8.5–9.5 | ISO 787-9 |
| LOI (1,000°C) | ≤43% | TGA (ISO 11358) |
Application-Specific Benefits
1. Plastics & Rubber Industry
- Reinforced Polymers:
- Increases HDPE/PP tensile strength by 25–30% at 15–20% filler loading.
- Improves PVC impact resistance by 20% (ASTM D256) while reducing plasticizer migration.
- Process Optimization:
- Reduces extrusion torque by 15% in LDPE blown film production.
- Enhances dimensional stability in engineering plastics (PA6, PBT) under thermal cycling.
- Specialty Applications:
- Anti-static masterbatches (surface resistivity: 10⁹–10¹¹ Ω/sq).
- Flame-retardant synergist in halogen-free cable compounds (UL94 V-0 achievable).
2. Coatings & Inks
- Architectural Coatings:
- Replaces 15–20% TiO₂ while maintaining 90+ contrast ratio (ASTM D2805).
- Improves scrub resistance (≥5,000 cycles, ASTM D2486) and UV stability (QUV-A 1,000 hrs).
- Industrial Coatings:
- Enhances anticorrosion performance in epoxy primers (salt spray resistance ≥1,000 hrs, ASTM B117).
- Reduces VOC content in waterborne systems via low-oil-absorption formulation.
- Printing Inks:
- Substitutes 30–40% gum rosin in flexo inks without compromising gloss (60° GU ≥85).
- Improves rheology for high-speed printing (viscosity stability ≥72 hrs).
3. Paper & Packaging
- Paper Filling/Coating:
- Increases ISO brightness by 2–3 points vs. conventional GCC.
- Reduces basis weight by 10–15% while maintaining tensile strength (TAPPI T494).
- Functional Packaging:
- Enhances grease resistance in food-grade paperboard (Kit Test ≥12/12).
- Improves printability via controlled porosity and ink absorption.
4. Cosmetics & Pharmaceuticals
- Personal Care:
- TiO₂ replacement in sunscreens (SPF boosting, non-comedogenic).
- Silky texture enhancer in foundations (SPF 15+ achievable at 8–12% loading).
- Oral Care:
- Abrasive agent in toothpastes (RDA value 80–120, ISO 11609).
- Calcium fortification in chewable tablets (USP <31> compliant).
Production Process & Quality Control
- Ore Selection: Natural calcite with ≤0.01% heavy metals (XRF verified).
- Crushing & Grinding: Multi-stage vertical roller mills to 400 mesh.
- Purification: Froth flotation to remove quartz and iron oxides.
- Nano-Micronization: Wet grinding with zirconia beads (D50: 0.8–1.2 µm).
- Surface Treatment: In-situ stearic acid coating (1.5–2.0% w/w).
- Drying & Classification: Spray drying + air-jet sieving (D100 ≤ 5 µm).
- Quality Assurance:
- ICP-MS for heavy metals (Pb/Cd/As <1 ppm).
- SEM analysis for particle morphology.
- Batch-wise ISO 9001 certification.
Why Choose Wufeng Weitai Nano CaCO₃ 8000 Mesh?
- Technical Leadership: Patented micronization technology for unparalleled particle uniformity.
- Global Compliance: REACH, FDA, EU Ecolabel, and Halal/Kosher certifications.
- Sustainability: Carbon footprint ≤1.8 kg CO₂/kg (30% below industry average).
- Custom Solutions: Tailored surface treatments (silane, titanate) and particle size adjustments.
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| Company Name | Beijing TDD E-commerce Co., Ltd | Country/Region | China |
| Business Type | Online Store | Company Size | 2000 |
| Established | December 18, 2014 | ||
| Address | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
| Main Products | PVC Resin , PP , PE , Pet , Titanium Dioxide , Pigment , Car Tire | ||
| International Commercial Terms(Incoterms): | FOB, CFR, CIF, FCA | ||
| Terms of Payment: | LC, T/T, D/P | ||
| Average Lead Time: | Peak Season Lead Time: one month, Off Season Lead Time: within 15 workdays | ||
| Number of Foreign Trading Staff: | 20~40 People | ||
| Main Markets: | Southeast Asia, Africa, Mid East | ||
| Nearest Port: | Tianjin,Qingdao,Shanghai | ||
| Import & Export Mode: | Have Own Export License | ||
About Beijing United Information Technology Co., Ltd.
Beijing United Information Technology Co., Ltd. (Stock Code: 603613. SH), founded in 2002 and listed on the Main Board in July 2019, is mainly engaged in industrial e-commerce and industrial Internet platforms. Based on industrial e-commerce and supported by industrial big data and industrial digitalization, the company provides online commodity trading, business information services and digital technology services of industrial products and raw materials for related industries. In terms of business model, it is called "the industrial version of Pinduoduo" and "the industrial version of JD.com".
About Beijing TDD E-commerce Co., Ltd.
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Beijing TDD E-commerce Co., Ltd. (shortly named TDD Global) is the core subsidiary of Guolian Corporation (Stock Code: 603613.SH) and the first industrial Internetplatform of Duoduo Series Platforms. The company mainly engages in B28 e-commerce transaction serices of raw material and industrial products, digital supply chain serices, industrial digitalization serices and industrial big data serices, and is committed to promoting the deep integration of traditional industries and new technologies such as the Internet, Internet of Things, big data, intelligent manufacturing and block chain, etc.
Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of quot&quality first, customer first and credit-based"Since the establishment of the company and always do our best to satisfy potential needs of our customers.
Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with an irresistible force. |
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Our Advantages:
Rich Experience-over 20 years in industry field
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In order to better satisfy our customers worldwide and maintain regular customers. Our company takes raw material&industrial product B2B e-commerce transaction service, digital supply chain service, industry digitization service and industry data service as it′s primary business, focusing on promoting the deep integration between new technology and traditional industry, such as Internet, Internet of things, big data, intelligent manufacturing and blockchain.
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