BM-15 is a halogen-free flame retardant specially designed for PBT, with phosphorus and nitrogen as the main flame retardant elements. It is not restricted by RoHS and REACH; it has the characteristics of high flame retardant efficiency, good thermal stability, no precipitation, good water resistance, light aging resistance, low smoke and non-toxicity. It has very high thermal stability, and the initial decomposition temperature is ≥360°C.
【Physical and Chemical Index】
Item | Unit | index |
Exterior | —— | White powder |
Phosphorus content | % | ≥10 |
Nitrogen content | % | ≥30 |
D50 particle size | μm | 3-10 |
Recommended processing temperature | ℃ | Weight loss 1% ≥245℃ Weight loss 5% ≥360℃ |
Water content | % | ≤0.5 |
【Applications】
UL94 | Flame retardant | Tensile Strength（MPa） | Elongation at break（%） | No-notch impact （KJ/㎡） | Gap shock （KJ/㎡） | Bending strength （MPa） | Flexural modulus （MPa） | Density （g/cm³） | |
PBT+BM-15 | 3.2mm-V0 | 20% | 46.7 | 1.2 | 17.7 | 5.6 | 68.6 | 2756 | 1.33 |
PBT+30% glass fiber+BM-15 | 1.6mm-V00.8mm-V0 | 15% 20% | 98.2 90.2 | 0.5 0.2 | 32 26 | 10.1 8.3 | 150 131 | 8082 7768 | 1.53 1.55 |