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| Quantity: | |
|---|---|
Parameter | Description | Value |
Material | Type of Calcium Carbonate | Eco-friendly Lightweight Plastic Calcium Carbonate |
Density | Specific gravity compared to water | 1.9 - 2.2 g/cm³ |
Particle Size | Average particle diameter | 0.5 - 50 µm |
Moisture Content | Moisture level in the material | ≤ 0.5% |
Oil Absorption | Amount of oil absorbed by the material | 20 - 40 g/100g |
pH Value | Acidity or alkalinity of the material | 8 - 10 |
Whiteness | Degree of whiteness (on a scale of 1-100) | ≥ 90 |
Bulk Density | Density in loose, unpacked form | 0.4 - 0.6 g/cm³ |
Chemical Resistance | Resistance to chemical degradation | Good (resistant to acids, bases, and solvents) |
Thermal Stability | Temperature range for stable performance | Up to 400°C (without decomposition) |
Environmental Impact | Biodegradability and ecological footprint | Biodegradable, low environmental impact |
Application | Uses in plastic manufacturing | Fillers, reinforcing agents, and extenders in various plastics |
With a purity ≥98% and average particle size of 1–5μm, this white powder offers exceptional dispersibility and optical properties, making it ideal for formulating vibrant inks and durable coatings while meeting strict environmental standards (REACH, RoHS compliant). Its low oil absorption (25–35 mL/100g) and high whiteness (CIELAB L* ≥95) enhance color retention and film clarity, positioning it as a sustainable alternative to talc and kaolin in eco-conscious formulations.
Sustainable Production and Purity:
Eco-Friendly Process: Manufactured via a closed-loop carbonation system, reducing CO₂ emissions by 30% compared to traditional calcium carbonate production. Purity ≥98% with MgCO₃ ≤1%, Fe₂O₃ ≤0.05%, ensuring minimal interference with ink pigment stability.
Lightweight Structure: Hollow spherical particles formed during wet carbonation provide a low bulk density, reducing coating weight by 15–20% without compromising film strength (tensile strength ≥15 MPa in latex coatings).
Optical and Rheological Performance:
High Whiteness and Brightness: L* ≥95 (ISO 2470), enhancing color vibrancy in printing inks (ΔE ≤1.5 for CMYK formulations) and reflecting up to 98% of visible light in coatings.
Controlled Oil Absorption: 25–35 mL/100g oil absorption balances pigment wetting and binder retention, allowing high filler loading (20–40%) in solvent-based and water-based systems without viscosity spikes.
Surface Functionalization:
Stearic Acid Coating (Optional): 0.5–1% treatment improves wetting in non-polar resins (e.g., alkyds, polyurethanes), reducing agglomeration and enhancing ink laydown uniformity (dot gain ≤10% in offset printing).
Hydrophilic Grade for Water-Based Systems: Untreated particles disperse readily in acrylic and styrene-acrylic emulsions, maintaining stability for 6+ months without sedimentation.
Printing Inks:
Offset and Gravure Inks: Fills pigment gaps in packaging inks, improving color saturation (D50 2μm grade) and reducing ink consumption by 10–15% while meeting FDA 21 CFR 176.170 for food contact packaging.
UV-Curable Inks: Low iron content (Fe <20ppm) prevents catalytic degradation of photoinitiators, ensuring consistent cure speeds (cure energy ≤800 mJ/cm²) and scratch resistance (3H pencil hardness).
Architectural and Industrial Coatings:
Latex Wall Paints: Enhances hiding power (ISO 6504) and scrub resistance (≥1000 cycles) in low-VOC formulations, with particle size D90 ≤5μm ensuring smooth film formation.
Marine Coatings: Neutral pH (8–9) and low chloride content (<50ppm) prevent corrosion under epoxy primers, improving salt spray resistance (ASTM B117: 500+ hours without blistering).
Paper Coatings:
Art Paper Coating: Used in topcoat layers to enhance gloss (60° gloss ≥75) and ink receptivity, critical for high-resolution printing in magazines and packaging.
Q: Is this calcium carbonate suitable for edible ink formulations?
A: Yes, the food-grade variant (Fe <10ppm, Pb <2ppm) complies with FDA 21 CFR 172.615, suitable for indirect food contact inks.
Q: How does particle size affect ink viscosity?
A: Smaller particles (D50 1μm) increase viscosity slightly due to higher surface area, while coarser grades (D50 5μm) reduce viscosity, ideal for high-speed gravure applications.
Q: Can it replace titanium dioxide in coatings?
A: It complements TiO₂ by filling interstitial spaces, reducing TiO₂ usage by 20–30% while maintaining opacity (ISO 2471: ≥90% for 30% filler loading).
Q: What is the shelf life in humid environments?
A: Packaged in 25kg PE-lined paper bags, it remains stable for 24 months at <60% RH; bulk storage requires moisture barriers to prevent caking.
