Halogen Free Flame Retardant PP Fibrillated Filler Yarn, also known as HFFR PP Filler Yarn (Not Twist), is a high-performance, environmentally friendly cable filler material produced from premium polypropylene with advanced halogen-free flame retardant additives. Through a specialized fibrillation process, it forms a strong mesh structure that provides excellent filling, rounding, and mechanical reinforcement for cables while delivering superior flame retardancy and low smoke emission. This non-twisted fibrillated yarn is the ideal choice for high-grade flame-retardant cables requiring compliance with strict environmental and fire-safety standards.
Key Features and Advantages
- Halogen-Free Flame Retardancy: AOI ≥28% and halogen content ≤1000 ppm ensure low smoke and toxicity during combustion.
- High-Strength Mesh Structure: Fibrillated design delivers excellent tensile strength and breaking elongation for enhanced cable roundness and mechanical stability.
- Low Shrinkage: Shrinkage <6% at 100°C for 30 minutes maintains dimensional stability during cable extrusion and long-term service.
- Excellent Processability: Lightweight, uniform, and easy to handle in high-speed stranding lines.
- Eco-Friendly: Halogen-free formulation meets global environmental regulations while maintaining cost-effectiveness.
Main Applications
HFFR PP Fibrillated Filler Yarn is widely used for filling and rounding in:
- Power cables and control cables
- Mine cables and industrial cables
- Telecommunication and data cables
- High-grade flame-retardant special wires and cables
It effectively fills gaps between conductors, improves cable roundness, increases overall tensile strength, and enhances fire safety performance.
Technical Specifications
| Parameter | Typical Value | Test Condition / Standard |
|---|
| Flame Retardancy (AOI) | ≥28% | Oxygen Index test |
| Halogen Content | ≤1000 ppm | Environmental compliance |
| Tensile Strength | High | During stranding process |
| Elongation | Excellent | Maintains flexibility |
| Shrinkage | <6% at 100°C / 30 min | Dimensional stability |
| Swelling Performance | Rapid & high | Upon water contact |
| Operating Temperature (Short-term) | Up to 230°C | Processing stability |
| Operating Temperature (Long-term) | Up to 90°C | Service life |
(Custom grades and specifications available to match exact cable designs and fire-retardant requirements.)
Packaging
Supplied in rolls with:
- Inner Diameter (ID): 38 mm
- Outer Diameter (OD): 250 mm
- Height: 260 mm
- Loading Capacity: 8 MT per 20-foot container
Halogen Free Flame Retardant PP Fibrillated Filler Yarn is the preferred high-strength, eco-friendly filler solution for cable manufacturers seeking superior flame retardancy, mechanical performance, and cable roundness in power, telecom, and industrial applications.
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