PVC Cables
Here’s how calcined kaolin and hydrous kaolin are used in the cable industry
Hydrous and calcined kaolin are essential fillers and reinforcing agents in the cable industry, contributing to improved mechanical, electrical, and thermal properties of cables. Hydrous kaolin, known for its fine particle size and plasticity, enhances the processability and thermal stability of cable insulation and sheathing materials.
Its good dielectric properties make it ideal for communication and power cables, while its chemical inertness ensures compatibility with various polymers like PVC, PE, and XLPE. Hydrous kaolin also improves flame retardancy, adding a layer of fire protection to low-voltage and general-use cables.
Hydrous Kaolin in Cable Industry
Role in Cable Production
- Filler for insulation, improving thermal stability, insulation strength, and flame retardancy.
- Enhances processability for extrusion or molding.
Properties
- Good Dielectric Properties: Ideal for electrical insulation.
- Thermal Stability: Operates across varying temperatures without degradation.
- Chemical Inertness: Compatible with polymers like PVC, PE, and XLPE.
Applications
- Power cables (improved strength and thermal stability).
- Communication cables (minimized signal loss).
- Low-voltage cables (delivering enhanced processability, durability, and thermal stability).
- Cable sheathings for mechanical and chemical protection.
Calcined Kaolin in Cable Industry
Role in Cable Production
- Superior flame retardant for fire-resistant cables.
- Enhances thermal conductivity for heat dissipation in high-current cables.
Properties
- High Refractoriness: Ideal for extreme temperature conditions.
- Enhanced Dielectric Strength: Significantly improves electrical insulation.
- Durability: Long-lasting performance with refined structural integration.
Applications
- Fire-resistant cables (heat and fire resistance).
- High-voltage power cables (mechanical strength, thermal stability).
- High-performance communication cables (low signal loss, fire resistance).
- Industrial cables (durable in harsh conditions).
Conclusion
- Hydrous Kaolin: Best for general-use power, communication, and low-voltage cables requiring good insulation and processability.
- Calcined Kaolin: Suited for high-performance and specialized cables where flame resistance, thermal stability, and mechanical strength are critical.
