PBT LANXESS Pocan B4215
PBT LANXESS Pocan® B4215
PBT LANXESS Pocan® B4215 is a well‑performing 12 % glass‑fiber‑reinforced, flame‑retardant engineering plastic. Its major advantages include good mechanical strength, excellent dimensional stability, very low moisture absorption, favorable electrical insulation and flame‑retardant performance.
Main Applications
Electrical & Electronics (core application): connectors, bobbins, relays, switches, sockets, electrical housings and bases.
Automotive: automotive component manufacturing.
Household appliances: various home‑appliance parts.
Industrial parts: power‑tool accessories.
Physical‑Mechanical‑Thermal‑Electrical Properties
| Property Category | Property Item | Test Standard / Condition | Test Data / Range | Unit |
|---|---|---|---|---|
| Physical Properties | Density | ISO 1183 | 1.53 | g/cm³ |
| Glass‑fiber content | ISO 3451‑1 | 12 | % | |
| Water absorption (23 °C / 24 h) | ISO 62 | 0.30 | % | |
| Equilibrium water absorption (23 °C,50 %RH) | ISO 62 | 0.10 | % | |
| MFR (260 °C / 2.16 kg) | ISO 1133 | 37 | g/10 min | |
| Molding shrinkage (flow direction) | — | 0.4 | % | |
| Molding shrinkage (transverse direction) | — | 1.3 | % | |
| Mechanical Properties | Tensile strength | ISO 527‑1,‑2 | 100 | MPa |
| Elongation at break | ISO 527‑1,‑2 | 2.5 | % | |
| Tensile modulus | ISO 527‑1,‑2 | 5700‑5800 | MPa | |
| Flexural strength | ISO 178 | 150‑155 | MPa | |
| Flexural modulus | ISO 178 | 5000‑5700 | MPa | |
| Charpy notched impact (23 °C) | ISO 179/1eA | ＜10 | kJ/m² | |
| Charpy notched impact (-30 °C) | ISO 179/1eA | ＜10 | kJ/m² | |
| Charpy un‑notched impact (23 °C) | ISO 179/1eU | 25 | kJ/m² | |
| Izod notched impact (23 °C) | ISO 180/1A | ＜10 | kJ/m² | |
| Izod un‑notched impact (23 °C) | ISO 180/1U | 20 | kJ/m² | |
| Ball‑pressure hardness | ISO 2039‑1 | 180 | MPa | |
| Thermal Properties | HDT @1.8 MPa | ISO 75‑1,‑2 | 185 | ℃ |
| HDT @0.45 MPa | ISO 75‑1,‑2 | 210 | ℃ | |
| Melting point | ISO 11357‑1,‑3 | 225 | ℃ | |
| Vicat softening temperature | ISO 306 | 205 | ℃ | |
| CLTE (flow direction) | ISO 11359‑2 | 1.0×10⁻⁴ | cm/cm/℃ | |
| CLTE (transverse direction) | ISO 11359‑2 | 4.0×10⁻⁵ | cm/cm/℃ | |
| Thermal conductivity | DIN 52612 | 0.20 | W/m/K | |
| UL94 (0.8 mm) | UL94 | V‑2 | class | |
| UL94 (1.6 mm) | UL94 | V‑0 | class | |
| Limiting oxygen index | ISO 4589‑2 | 32 | % | |
| Electrical Properties | Volume resistivity | IEC 60093 | ＞10¹¹‑＞10¹³ | Ω·m |
| Surface resistivity | IEC 60093 | ＞10¹⁵ | Ω | |
| Dielectric strength (1.0 mm) | IEC 60243‑1 | 29 | kV/mm | |
| Relative permittivity (100 Hz) | IEC 60250 | 3.6 | — | |
| Dissipation factor | IEC 60250 | 200 | ×10⁻⁴ |
Injection‑Molding Parameters
| Process Stage | Parameter Item | Reference Range / Recommendation | Unit / Remarks |
|---|---|---|---|
| Pre‑treatment | Drying temperature | 120‑140 | ℃ |
| Drying time (at 120 ℃) | 4‑8 | h | |
| Target moisture content | ＜0.02‑0.03 | % | |
| Drying equipment | Desiccant dryer recommended | — | |
| Injection Molding | Rear barrel temperature | 220‑240 | ℃ |
| Middle barrel temperature | 230‑250 | ℃ | |
| Front barrel temperature | 240‑260 | ℃ | |
| Nozzle temperature | Slightly lower than or equal to front zone | ℃ | |
| Melt temperature | 240‑260; do NOT exceed 280 ℃(decomposition) | ℃ | |
| Mold temperature | 70‑100; preferred:80‑100 | ℃ | |
| Injection pressure | 50‑100 | MPa | |
| Injection speed | Relatively fast(PBT fast‑cooling characteristic) | — | |
| Back pressure | 10‑15 % of injection pressure | MPa | |
| Screw speed | 25‑60; max ≤80 | rpm | |
| Mold | Runner type | Round‑runner recommended | — |
| Gate type | All gate types are applicable | — | |
| Mold cooling | Uniform temperature, temperature difference ≤10 ℃ | — | |
| Post‑processing | Cycle time | 15‑60 | s |
| Annealing (if required) | Reduce residual stress, improve dimensional stability | ℃ | |
| Annealing time | Adjust by wall thickness | h |
Note: All data above is for reference only.
