PMMA 三PMMA Mitsubishi Chemical MF001
PMMA Mitsubishi Chemical MF001
PMMA Mitsubishi Chemical MF001 is high‑flow polymethyl methacrylate produced by Nantong Mitsubishi Rayon. It delivers excellent dimensional stability, heat‑resistance and optical performance, well‑suited for large‑size or thin‑wall part molding.
Main Applications
Thin‑wall & complex‑structure parts: complex frames, large‑area thin wall decorative components.
Lighting: lamp covers, diffusion panels.
Optical components: lenses and optical devices.
Electrical & electronics: transparent insulating components.
Consumer goods: home‑appliance parts, decorations.
Properties
表格
| Property Category | Item | Test Standard | Value | Unit |
|---|---|---|---|---|
| Physical | Density | ISO 1183 | 1.19 | g/cm³ |
| Water absorption (24 h) | ISO 62 | 0.3 | % | |
| MFR(230℃/3.8 kg) | ISO 1133 | 14 | g/10min | |
| Molding shrinkage | — | 0.4 | % | |
| Refractive index | ISO 489 | 1.49 | — | |
| Light transmittance (3 mm) | ISO 13468‑1 | 93 | % | |
| Haze (3 mm) | ISO 14782 | 0.3 | % | |
| Mechanical | Tensile strength (break) | ISO 527‑2 | 69 | MPa |
| Elongation at break | ISO 527‑2 | 5 | % | |
| Flexural strength | ISO 178 | 114 | MPa | |
| Flexural modulus | ISO 178 | 3200 | MPa | |
| Charpy notched impact | JIS K‑7110 | 1.6 | kJ/m² | |
| Charpy un‑notched impact | JIS K‑7111 | 20 | kJ/m² | |
| Rockwell hardness‑M | ISO 2039 | M92 | — | |
| Thermal | HDT (1.8 MPa) | ISO 75‑2 | 84 | ℃ |
| Vicat softening temperature B50 | ISO 306 | 88 | ℃ | |
| Linear thermal expansion coefficient | JIS K‑7197 | 6.0×10⁻⁵ | cm/cm/℃ | |
| Specific heat | JIS K‑7123 | 1.5 | J/(g·℃) | |
| Thermal conductivity | JIS A‑1412 | 0.2 | W/(m·℃) | |
| Electrical | Surface resistivity | JIS K‑6911 | ＞10¹⁶ | Ω |
| Volume resistivity | JIS K‑6911 | ＞10¹³ | Ω·m | |
| Dielectric constant (60 Hz) | JIS K‑6911 | 3.7 | — | |
| Dissipation factor (60 Hz) | JIS K‑6911 | 0.05 | — | |
| Dielectric breakdown strength | JIS K‑6911 | 20 | MV/m | |
| Flammability | UL94 (1.5 mm) | — | HB | class |
Injection‑Molding Parameters
表格
| Process | Item | Recommendation | Notes |
|---|---|---|---|
| Predrying | Drying temperature | 80‑85 ℃ | Desiccant dryer required |
| Drying time | 4‑5 h | Target moisture＜0.1%, avoid bubbles & silver‑streaks | |
| Barrel setting | Rear zone | 185‑205 ℃ | Melt onset ~160 ℃, note: degradation＞270℃, typo in original text |
| Middle zone | 220‑240 ℃ | ||
| Front zone | 210‑230 ℃ | ||
| Nozzle | 210‑230 ℃ | About 20 ℃ lower than maximum barrel temperature | |
| Melt temperature | 210‑230 ℃ | Control residence time to prevent degradation | |
| Mold temperature | 40‑80 ℃ | Higher temperature improves gloss yet lengthens cycle time | |
| Injection pressure | 80‑120 MPa | Holding pressure 40‑60 MPa | |
| Injection speed | Medium‑high | High‑speed benefits thin‑wall filling, risk of gas marks | |
| Back pressure | 0.5‑1.0 MPa | For melt homogenization | |
| Screw speed | 50‑70 rpm | Avoid excessive shear rate |
Note: All data for reference only, follow official TDS for mass‑production.
