Overview
Cable shielding special plastic is a conductive polymer blend engineered to provide electromagnetic interference (EMI) shielding for cables. It is widely used in industries requiring high-performance insulation and signal integrity, such as telecommunications, automotive, and industrial automation. This material is typically formulated with carbon black or metallic additives to enhance conductivity while maintaining the flexibility and durability needed for cable applications. Its primary function is to prevent signal degradation caused by external electromagnetic fields.
Physical and Chemical Properties
The material exhibits a granular or pellet form, often black or gray due to conductive fillers. Its density ranges between 1.1–1.3 g/cm³, and it melts at 120–180°C, depending on the specific formulation. The plastic is insoluble in water but may dissolve in certain organic solvents. Key properties include high electrical conductivity, thermal stability, and resistance to environmental stressors like UV radiation and moisture. These characteristics ensure long-term performance in harsh conditions, making it suitable for outdoor and industrial applications.
Main Applications
Cable shielding plastic is primarily used in power and communication cables to mitigate EMI, which can disrupt signal transmission. It is also employed in data centers, military wiring, and automotive harnesses where signal integrity is critical. In addition to EMI shielding, the material serves as a protective layer against mechanical wear and environmental factors. Its versatility extends to coaxial cables, fiber optic cables, and high-voltage power lines, where both conductivity and insulation are required.
Safety and Storage
While generally non-toxic, the material may release fumes if overheated during processing. Adequate ventilation and personal protective equipment (PPE) are recommended for handling in industrial settings. Storage should be in a cool, dry environment to prevent moisture absorption, which could affect conductivity. Bulk quantities are typically packaged in sealed bags or containers to maintain quality during transit and warehousing.
B2B Procurement Guide
When sourcing cable shielding plastic, prioritize suppliers with certifications like ISO 9001 or UL listings to ensure quality consistency. Key procurement considerations include conductivity levels, thermal stability, and compatibility with existing extrusion equipment. Volume discounts are common for bulk orders, with prices ranging approximately $2–5 per kg. Request samples to test processability and performance before committing to large purchases. Lead times may vary based on customization requirements.
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