Water Milling Heavy and Active Ultrafine Nanometer Calcium Carbonate 6000 Mesh - High-Performance Nanometer Calcium Carbonate for Advanced Industrial Uses

Select high-quality calcite, adopt vertical mill, 5000L large stirring mill imported from Germany, hot gas flow mill, modifier and other equipment, and then dry grinding, wet grinding, drying, dispersing and modifying to ultra-fine and nano-sized calcium carbonate.

Product whiteness: 94%- 95%- 96%

Calcium carbonate content:≥98%

Application field:mainly used in high-grade coatings, high-grade paints, inks, PVC, PE, PPR water supply and large sewage pipes, plastic steel profiles, polymer masterbatch, non-woven masterbatch, soft cable masterbatch, silicon copper adhesive, and breathable film.

1. Product Characteristics

Particle Size and Morphology
With a remarkable fineness of 6000 mesh, the calcium carbonate particles are extremely small, typically in the nanometer range.

The average particle size can be precisely controlled, often around 100 - 200 nm. The particles have a regular and uniform shape, such as spherical or cubic, which ensures good packing density when incorporated into industrial materials. 

This ultra-fine particle size provides a large specific surface area, enabling strong interactions with other components in the industrial formulations.

High Purity

The product boasts an extremely high calcium carbonate content, usually over 99%. The impurity levels are extremely low, with substances like iron, manganese, and other trace elements being present in negligible amounts. This high purity ensures that the calcium carbonate does not introduce unwanted chemical reactions or affect the performance of the final industrial products.

Surface Activity
Through a specialized water milling and surface activation process, the calcium carbonate particles are coated with active substances. These active surfaces enhance the compatibility of the calcium carbonate with various polymers, resins, and other materials used in advanced industrial applications. The lipophilic or hydrophilic properties can be adjusted according to the specific requirements of different industries, facilitating better dispersion and adhesion within the industrial matrices.

Chemical Stability
The water-milled and activated calcium carbonate exhibits excellent chemical stability. It is resistant to common chemical substances and environmental factors, such as acids, alkalis, and moisture. This stability ensures that the calcium carbonate maintains its performance and functionality during storage and processing, as well as in the final applications, providing long-term durability to the industrial products.

2. Functions in Advanced Industrial Applications
In Coatings
Enhanced Mechanical Properties: In advanced coatings for industries like automotive, aerospace, and marine, the ultrafine calcium carbonate reinforces the coating matrix. It improves the hardness, scratch resistance, and impact resistance of the coating, protecting the underlying substrate from damage. For example, in automotive clear coats, it can increase the surface hardness, making the paint more resistant to minor scratches and abrasion.

Optical Properties: The high whiteness and uniform particle size of the calcium carbonate enhance the hiding power and color stability of the coating. It can partially replace more expensive pigments, reducing the cost of the coating while maintaining or improving its optical performance. In addition, the fine particles contribute to a smooth and glossy surface finish, enhancing the aesthetic appeal of the coated products.

Improved Rheological Properties: The presence of the ultrafine calcium carbonate can adjust the viscosity and thixotropy of the coating. It enables better control of the coating during application, such as spraying or brushing, and ensures a uniform film formation. This is crucial for achieving high-quality coatings with consistent thickness and surface properties.

In Plastics
Reinforcement: In engineering plastics used in industries like electronics, machinery, and automotive components, the calcium carbonate acts as a reinforcing filler.

It improves the mechanical properties of the plastic, such as tensile strength, flexural strength, and dimensional stability. For instance, in the production of plastic gears and structural parts, the addition of the ultrafine calcium carbonate can enhance the load-bearing capacity and durability of the plastic products.

Cost Reduction: By replacing a certain proportion of more expensive polymer materials, the calcium carbonate helps to reduce the cost of plastic production. Its high purity and fine particle size allow for a higher loading level in the plastic matrix without significantly affecting the processing performance of the plastic.

Improved Processability: The surface-activated calcium carbonate improves the flowability of the plastic during processing.

It reduces the friction between the plastic particles, making it easier to mold and shape the plastic products. This is especially beneficial in injection molding and extrusion processes, where good processability is essential for efficient production.

In Adhesives and Sealants
Enhanced Adhesion: In high-performance adhesives and sealants used in construction, automotive assembly, and electronics, the ultrafine calcium carbonate enhances the adhesion to various substrates. It forms a strong bond with the adhesive matrix and the substrate, improving the overall adhesion strength and durability of the adhesive joint.

Improved Mechanical and Chemical Resistance: The addition of the calcium carbonate improves the mechanical properties of the adhesives and sealants, such as shear strength and peel strength. It also en

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