What is Nanoclay?

Nanoclay is a class of naturally occurring or synthetic layered silicate nanoparticles, primarily composed of montmorillonite, kaolinite, or hectorite. Due to its high aspect ratio, large surface area, and excellent barrier properties, nanoclay is widely used in polymer composites, coatings, packaging, and environmental applications.

Chemical Properties and CAS Number

• Chemical Formula: Varies (commonly Al₂Si₄O₁₀(OH)₂·nH₂O for montmorillonite)
• CAS Number: 1318-74-7 (Montmorillonite)
• Appearance: White, off-white, or gray fine powder
• Density: Approximately 2.6 – 2.9 g/cm³
• Melting Point: N/A (Decomposes at high temperatures)
• Solubility: Insoluble in water, dispersible in polar solvents
• Chemical Stability: High thermal stability, excellent moisture resistance

Applications of Nanoclay

1. Polymer Nanocomposites

Used as a reinforcing filler in plastics, rubber, and resins to improve mechanical strength, thermal stability, and flame retardancy.

2. Barrier Coatings and Packaging

Applied in food packaging and protective coatings to enhance gas barrier properties and prolong shelf life.

3. Environmental Applications

Utilized in wastewater treatment, pollutant adsorption, and soil stabilization due to its high surface area and absorption capacity.

4. Paints and Coatings

Employed in corrosion-resistant, anti-bacterial, and UV-resistant coatings for industrial and automotive applications.

5. Biomedical and Pharmaceutical Applications

Used in drug delivery systems, wound dressings, and antimicrobial formulations for controlled release and bioactivity.

6. Oil and Gas Industry

Applied in drilling fluids, lubricants, and oil recovery processes for rheology control and stability enhancement.

Pricing of Nanoclay

Prices vary based on purity, particle size, surface modification, and application:

• Industrial Grade: Typically ranges from $50 – $500 per kilogram
• High-Purity/Specialized Grade: Prices range from $1,000 – $5,000 per kilogram, used in high-performance coatings, biomedical applications, and advanced composites.

Factors Influencing Nanoclay Powder Prices

• Purity level and particle size distribution
• Functionalization and surface modifications
• Processing complexity and synthesis method
• Bulk order volume and industry demand

Conclusion

Nanoclay is a versatile nanomaterial with applications in polymer composites, coatings, packaging, and environmental industries. Its superior mechanical reinforcement, gas barrier properties, and adsorption capacity make it an essential component in advanced industrial and scientific applications. Pricing depends on purity, particle specifications, and intended use.