PPMMA Wanhua ACRYPLAS® HD03
PMMA Wanhua ACRYPLAS® HD03
PMMA Wanhua HD03 is optical‑grade polymethyl methacrylate resin. Similar to HD01, it features high transparency, excellent weather resistance and good processability for diverse‑field applications.
Main Applications
Automotive lighting: taillight lenses, especially through‑type taillights; custom‑color compounded versions for automotive lamp assemblies.
Optical display: meets comprehensive requirements for flowability, special light‑effect, high transmittance and heat resistance.
Other fields requiring high transparency & weather resistance: outdoor signs, light‑diffusion panels for lighting fixtures.
Properties
表格
| Property Category | Item | Test Standard | Value | Unit | Remark |
|---|---|---|---|---|---|
| Physical | Density | ASTM D792 | 1.19 | g/cm³ | Typical PMMA |
| Water absorption(23℃/24h) | ISO 62 | 0.3 | % | Low water absorption, good dimensional stability | |
| Light transmittance(3 mm) | ASTM D1003 | 92 | % | Excellent optical clarity | |
| Haze(3 mm) | ASTM D1003 | ≤1.0 | % | Low light scattering, uniform light transmission | |
| Mechanical | Tensile strength | ASTM D638 | 75 | MPa | Higher than PC / PS |
| Elongation at break | ASTM D638 | 4‑6 | % | Typical rigid‑PMMA value | |
| Flexural strength | ASTM D790 | 115 | MPa | High stiffness, good deformation resistance | |
| Flexural modulus | ASTM D790 | 3300 | MPa | ||
| Izod notched impact | ASTM D256 | 2.0 | kJ/m² | Medium toughness; avoid heavy‑impact structure | |
| Rockwell hardness | ASTM D785 | M90 | — | High surface hardness, scratch‑resistant | |
| Thermal | HDT (1.82 MPa) | ASTM D648 | 95 | ℃ |
Processing Parameters
表格
| Process | Item | Recommendation | Notes |
|---|---|---|---|
| Predrying | Drying temperature | 80‑85 ℃ | Desiccant dryer required; eliminate silver‑streaks & bubbles |
| Drying time | 2‑4 h | Target moisture＜0.1 % | |
| Injection molding | Barrel temperature | 180‑230 ℃ | Adjust by melt status & mold structure |
| Mold temperature | 50‑80 ℃ | Higher mold temp improves gloss & reduces internal stress | |
| Injection pressure | Medium‑high | Optimize for full filling & good appearance | |
| Extrusion | Extruder temperature | 180‑220 ℃ | For sheets & profiles |
Note: All data for reference only.
