PA (Nylon) 66 filament bristle
PBT filament fiber is renowned for its outstanding toughness and fatigue resistance, high impact strength, and excellent heat and weather resistance. Additionally, it boasts superior electrical properties and arc resistance. These qualities make it an ideal choice for a wide range of applications including toothbrushes, cleaning brushes, oral care brushes, makeup brushes, industrial brushes, painting brushes, and outdoor cleaning brushes. Furthermore, its low moisture absorption rate ensures optimal performance in wet and humid environments, enhancing the durability and efficiency of these brushes.
PBT Physical Properties Table
| Name | PBT |
| Specifications | Below 0.07-2.0 |
| Standard Cut Length | 1300mm Can cut e.g. 45mm, 40mm, etc. |
| Bundle Diameter | Regular 28mm/ 29mm Customisable |
| Specific gravity | 1.30-1.31 |
| Melting point | 223°C |
| Water absorption | Low water absorption |
| Resistance | High heat resistance. Not resistant to strong acids and alkalis, resistant to organic solvents.Excellent resistance to chemicals and oil.Mechanical properties: high strength, fatigue resistance, dimensional stability, creep is also small (high temperature conditions also rarely change).Water stability: PBT is not easy to decompose in water. |
| Resilience | 0.20 specification ≥60%. |
| Tensile strength Mechanical properties | Stable tensile strength and tensile modulus are similar to those of nylon. |
Application: Toothbrush, industrial brush roller, strip brush, vacuum cleaner brush, cleaning brush, broom brush, etc.
