PA12 Wanhua Chemical L2001
PA12 Wanhua Chemical L2001 Resin
Material Introduction: PA12 Wanhua Chemical L2001 is a polyamide‑12 resin featuring excellent low‑temperature toughness, low moisture absorption and high dimensional stability. It also provides good chemical‑corrosion resistance and broad processing window.
Main Applications
Automotive fluid pipeline system: Turbocharger air tubes, fuel‑vapor evaporation tubes, brake‑booster vacuum hoses (oil‑pressure resistance ≥0.8 MPa).
Industrial pneumatic transmission components: Compressed‑air hoses, pneumatic‑tool connectors (passed ISO 2398 burst‑pressure test).
Safety structural parts for sports equipment: Snow‑board bindings, carabiner lock cores (＞100 cycles of‑30 ℃ dynamic‑impact test).
Electronic cable protection: Robot drag‑chain cable sheaths, photovoltaic cable jackets (bending resistance＞5 million cycles).
Daily‑consumer goods: Eyeglass‑temple hinges, zipper teeth (compliant with GB 4806 food‑contact standard).
Performance Parameters
| Performance Category | Test Item | Test Standard | Unit | Typical Value | Remarks & Interpretation |
|---|---|---|---|---|---|
| Basic Physical Properties | Density | ISO 1183 | g/cm³ | 1.01‑1.02 | General‑purpose PA12 grade |
| Water Absorption (saturated,23℃) | ISO 62 | % | 1.4‑1.6 | Low‑moisture‑absorption characteristic | |
| Mechanical Properties | Tensile Strength | ISO 527 | MPa | 45‑50 | ‑ |
| Elongation at Break | ISO 527 | % | 280‑350 | High‑elongation flexible grade | |
| Flexural Modulus | ISO 178 | MPa | 1050‑1150 | ‑ | |
| Notched Charpy Impact Strength (-40℃) | ISO 179/1eA | kJ/m² | 50‑60 | Excellent low‑temperature toughness | |
| Thermal Properties | Melting Point (DSC) | ISO 11357 | ℃ | 176‑179 | ‑ |
| Heat‑Distortion Temperature (0.45 MPa) | ISO 75 | ℃ | 125‑130 | ‑ | |
| Coefficient of Linear Thermal Expansion | ISO 11359 | /℃ | 1.2×10⁻⁴ | ‑ | |
| Chemical & Electrical Properties | Diesel‑oil Swelling Rate (23℃×7d) | ISO 1817 | % | ＜2.0 | Good fuel‑resistance performance |
| Volume Resistivity | IEC 60093 | Ω·cm | 10¹⁴ | Good insulation property | |
| UL94 Rating | UL 94 | — | HB | Non‑flame‑retardant grade |
Injection Molding Parameters
| Processing Step | Parameter Range | Key Control Points |
|---|---|---|
| Drying | 80 ℃ × 4‑6 h | Moisture content ≤0.05%, dew point ≤‑30℃. |
| Barrel Temperature | Rear zone：190‑200 ℃ | Avoid thermal degradation; residence time＜10 min. |
| Middle zone：200‑215 ℃ | ‑ | |
| Front zone / Nozzle：210‑225 ℃ | Temperature＞235 ℃ will cause yellowing. | |
| Mold Temperature | 50‑70 ℃ | Mold temperature＜40 ℃ leads to insufficient crystallization and higher post‑shrinkage. |
| Injection Pressure | 60‑90 MPa | High‑pressure & high‑speed filling is required for thin‑wall parts. |
| Holding Pressure | 30‑50% of injection pressure | Low holding‑pressure is recommended for high‑elongation material to prevent flash. |
| Screw Speed | 60‑100 rpm | Excessive shear may break molecular chains. |
| Hot‑runner System | Open‑type optional | Cold‑well depth ≥3 mm is suggested. |
Disclaimer: All above data is for reference only.
