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Wire and cable grade TPU | Farewell to Slag and Bulging: How High-Performance Polyether TPU Revolutionizes EV Charging Cable Jackets

In the booming era of New Energy Vehicles (NEV), the safety and durability of charging infrastructure are under the spotlight. As the "first line of defense" for charging cables, the quality of the TPU jacket material directly dictates the cable’s lifespan and the user experience.

Currently, the market for charging cable jacket materials is a mixed bag. To cut costs, many manufacturers adopt modified solutions using powder-filled flame retardants and low-quality base resins. While the prices are tempting, practical extrusion processes are often plagued by issues like slag accumulation, bulging, and rough surfaces. These problems not only increase scrap rates but also hide significant safety risks.

Today, we introduce a solution truly born for high performance: E185F-06M-18 Polyether-based Thermoplastic Polyurethane (TPU) Charging Cable Jacket Material.

Directing the Pain Points: Why "Cheap" Cable Material Isn't Actually Cheap

Before diving into our product, let’s look at the typical issues encountered during the production of low-cost TPU jacket materials:

• The Pain of "Slag Accumulation": Materials modified with powder flame retardants suffer from poor compatibility between the powder and the base resin. During extrusion, this leads to accumulation and scorching at the screw and die head. This requires frequent downtime for cleaning and can scratch the cable surface.

• The Risk of "Bulging": When inferior powders or impurities accumulate within the screw and are eventually carried out by the melt, they form protruding "bulges" on the smooth jacket surface. In high-speed production, this is fatal, leading directly to the scrapping of entire cable batches.

• Compromised Performance: To reduce costs, inferior base resins are often chosen, which drastically compromise weather resistance, hydrolysis resistance, and mechanical strength, failing to meet rigorous industry standards.

  
  

The Solution: One-Step Synthesis TPU Solves Problems at the Source

E185F-06M-18 is an 80°C temperature-rated modified TPU material. It uses polyether-type TPU as the primary base resin, integrated with matting agents, flame retardants, and antioxidants through a specialized blend-extrusion granulation process.

1. Liquid Flame Retardants & One-Step Synthesis

Unlike the powder-filled modifications common in the market, our technology utilizes a one-step synthesis process involving liquid flame retardants.

• The Advantage: Flame-retardant components are uniformly dispersed within the molecular chains at the polymerization stage. This fundamentally solves the compatibility issue, eliminating slag accumulation and bulging caused by flame retardant precipitation. Your production line will run smoother without the headache of frequent die head cleaning.

2. Unrivaled Mechanical Performance and Compliance

• High Mechanical Strength: Boasts a tensile strength of 26 MPa and an elongation at break of 680%, ensuring the jacket remains tough and durable in complex installation environments.

• Strict Standard Compliance: Performance fully meets the requirements for TPU jackets specified in GB/T 33594 and BS EN 50620.

• Reliable Flame Retardancy: Achieves a UL94 V-2 rating, providing core safety assurance for charging cables.

3. Superior Weather Resistance and Processability

• Polyether Base Advantage: Provides excellent hydrolysis resistance and low-temperature toughness, passing the -40°C low-temperature embrittlement test. This ensures long-term stability in humid or freezing outdoor environments.

• Outstanding Matte Effect: Naturally achieves a uniform, high-end matte finish with a delicate tactile feel.

• Wide Processing Window: We provide detailed temperature settings and screw recommendations to ensure you can reach stable production quickly.

Technical Parameter Comparison: Choosing Quality is Choosing Peace of Mind

Processing and Packaging Guidelines

• Typical Extrusion Temperature Settings (°C):

  Zone 1: 140 | Zone 2: 165 | Zone 3: 180 | Zone 4: 180

  Flange: 190 | Neck: 190 | Head: 175 | Die: 165

• Drying Requirements: Must be dried at 90-110°C for 1-2 hours before use using a well-ventilated hopper.

• Packaging: Net weight 25±0.2 kg per bag, using moisture-proof PE or aluminum-plastic composite bags.

• Storage: Should be stored in a ventilated warehouse away from light.

Conclusion: In the field of EV charging, material quality should never be a compromise. Choose E185F-06M-18 to bid farewell to slag and bulging issues and help your brand build high-quality charging infrastructure.

Ready to upgrade your cable quality? Contact our engineering team for samples and full technical support!