Precipitated Calcium Carbonate (PCC)
Product Introduction
Precipitated Calcium Carbonate (PCC) is a high-purity white inorganic filler produced through controlled calcination, hydration, carbonation and post-treatment processes.
Unlike ground calcium carbonate made from natural ore grinding, our Precipitated Calcium Carbonate features artificially controlled crystal morphology, which can be adjusted to spindle, cubic or other shapes according to different application demands. The product shows very low heavy metal content, stable pH value and outstanding compatibility with polymer systems, making it a standard general-purpose filler choice for plastic, rubber, coating and paper industries worldwide.
Technical Specifications
Item | Value |
CaCO₃ Purity | ≥ 98.0 |
Whiteness | ≥ 92.0 |
Moisture Content (105℃) | ≤ 0.5 |
Settling Volume | 2.4 – 2.8 |
45μm Sieve Residue | ≤ 0.3 |
pH Value (10% Suspension) | 8.0 – 10.0 |
Oil Absorption Value | 25 – 40 |
Fe Content | ≤ 0.02 |
D97 Particle Size,um | 2 – 5 |
Hydrochloric Acid Insoluble Substance | ≤ 0.1 |
Ignition Loss | ≤ 1.0 |
Bulk Density | 0.4 – 0.6 |
Surface Activation Degree (Activated Grade) | ≥ 90 |
Heavy Metal Content (Pb) | ≤ 10 |
Product Benefits
Excellent Filling Performance: Greatly increases finished product volume while maintaining basic mechanical properties, effectively reducing raw material cost for mass production
Stable Batch Consistency: Strict process control ensures no obvious fluctuation in whiteness, fineness and settling volume across different shipments, avoiding unexpected changes in downstream formulation
Good Dispersion: No obvious agglomeration in mixing and processing, effectively reduces the risk of white spots and surface defects in final products
Optimized Processing Behavior: Moderate oil absorption value brings balanced interaction with plasticizers and lubricants, avoiding excessive consumption of additives in PVC formulation
Bright & Stable Color: High whiteness performance helps maintain the bright tone of finished products, reducing the dosage of white pigment such as titanium dioxide
Wide Compatibility: Suitable for most general industrial formulations, no special modification required for most conventional application scenarios
Application Fields
PVC & Plastic Industry: Widely used in PVC pipes, profiles, sheets, injection molded parts, calendered films and plastic modified masterbatch
Rubber Products: Serves as high-volume filler in natural rubber, synthetic rubber and TPE products, improving mixing efficiency and product surface smoothness
Coating & Ink: Acts as skeleton filler in latex paints, industrial coatings and printing inks, enhancing coating hiding power and film durability
Papermaking Industry: Improves paper opacity, smoothness and filler retention, suitable for high-grade cultural paper and packaging paper production
Other Industrial Scenarios: Used in construction materials, daily chemical products, sewage treatment neutralizer and other general industrial fields
Packaging Details
Standard export package: 25kg/bag,20ft FCL loading capacity: around 16-18 MT/20’GP
Storage :store in a dry, cool and well-ventilated indoor warehouse, keep away from high humidity environment and direct sunlight
Shelf life :24 months from production date
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