TF-241: Halogen-Free Intumescent Flame Retardant for Polypropylene (PP)
Product Overview
TF-241 is an advanced halogen-free, environmentally friendly flame retardant specifically designed for polyolefins, including homopolymer PP (PP-H) and copolymer PP (PP-B). Comprising acid source, gas source, and carbon source, TF-241 achieves superior flame retardancy through an intumescent char-forming mechanism. With a loading of 22%, PP compounds incorporating TF-241 meet stringent flammability standards, including UL94 V-0 (3.0mm) and GWIT 960°C, while maintaining excellent mechanical properties.
Key Features
- Halogen-Free & Eco-Friendly: No heavy metals or hazardous substances.
- High Efficiency: Low smoke emission, outstanding water resistance, and thermal stability.
- Versatile Compatibility: Optimized for PP-H and PP-B applications.
- Balanced Performance: Preserves mechanical strength and processability.
Technical Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| P₂O₅ Content | ≥52% |
| N Content | ≥18% |
| Moisture | ≤0.5% |
| Bulk Density | 0.7–0.9 g/cm³ |
| Decomposition Temp. | ≥260°C |
| Particle Size (D₅₀) | ~18 µm |
Performance Highlights
- Flame Retardancy:
- UL94 V-0 (1.5mm & 3.0mm)
- LOI: 28–30%
- Passes GWIT 960°C
- Retains V-0 rating after 70°C/48h water boil test.
- Mechanical Properties:
Property PP-H (S1) PP-B (S2) Tensile Strength 28 MPa 23 MPa Elongation at Break 53% 102% Flexural Modulus 2315 MPa 1981 MPa Melt Flow Index 6.5 g/10min 3.2 g/10min
Applications
Ideal for flame-retardant PP in:
- Household appliances
- Steam air heaters
- Electronics & automotive components
Recommended Formulation
| Material | PP-H (S1) | PP-B (S2) |
|---|---|---|
| PP (H110MA/EP300M) | 77.3% | 76.3% |
| TF-241 | 22–24% | 23–25% |
| Additives* | 0.7% | 0.7% |
*Includes lubricant (EBS), antioxidant (B215), and anti-dripping agent (FA500H).
Why Choose TF-241?
✔ Sustainable: Complies with eco-friendly regulations.
✔ High Performance: Balances flame retardancy and material integrity.
✔ Reliable: Consistent results under thermal and hydrolytic stress.
Contact Us （lucy@taifeng-fr.com） for samples and technical support to optimize your PP flame-retardant solutions!
Post time: Jul-01-2025
