PMMA Arkema V040 (France)
PMMA Arkema V040 (France)
PMMA Arkema V040 is heat‑resistant, high‑flow and wear‑resistant polymethyl methacrylate (acrylic / plexiglass). It features excellent optical performance, superior dimensional stability and mechanical properties.
Main Applications
Automotive industry: instrument panel lenses, outer rear‑combination taillight lenses, light‑guide components; suited for engine‑bay ambient condition with high heat‑resistance, UV‑resistance and wear‑resistance.
Optics & electronics: thick‑wall optical lenses, light‑guide plates, instrument cluster lenses; transparent parts / housings for electrical‑electronic devices.
Industry & building materials: extruded wear‑resistant sheets & profiles for building fences, decorative panels; insulating transparent housings and terminal sheaths for electrical components.
Other applications: consumer goods (beverage cups, stationery), medical (blood‑storage containers), electronic transparent keys.
Properties
| Property Category | Item | Test Standard | Value | Unit |
|---|---|---|---|---|
| Physical | Density | ASTM D792 | 1.19 | g/cm³ |
| Water absorption (24 h) | ASTM D570 | 0.3 | % | |
| MFR(230℃/3.8 kg) | ASTM D1238 | 3.5 | g/10min | |
| Molding shrinkage (flow direction) | ASTM D955 | 0.20‑0.60 | % | |
| Refractive index | ASTM D542 | 1.49 | — | |
| Light transmittance (3.2 mm) | ASTM D1003 | 92 | % | |
| Haze (3.2 mm) | ASTM D1003 | 0.50 | % | |
| Mechanical | Tensile strength (yield) | ASTM D638 | 70‑74 | MPa |
| Flexural strength | ASTM D790 | 103‑107 | MPa | |
| Flexural modulus | ASTM D790 | 3136‑3240 | MPa | |
| Elongation at break | ASTM D638 | 6.0 | % | |
| Rockwell hardness‑M | ASTM D785 | M93‑97 | — | |
| Izod notched impact(23℃) | ASTM D256 | 12.3 | J/m | |
| Thermal | HDT (1.8 MPa) | ASTM D648 | 101‑102 | ℃ |
| Vicat softening temperature | ASTM D1525 | 111 | ℃ | |
| Glass‑transition temperature Tg | — | 108 | ℃ | |
| Linear thermal expansion coefficient | ASTM D696 | 6.5E‑5 | cm/cm/℃ |
Injection‑Molding Parameters
| Process | Item | Recommendation | Notes |
|---|---|---|---|
| Predrying | Drying temperature | 80‑90 ℃ | Desiccant dryer required |
| Drying time | 2‑4 h | Moisture＜0.1%, prevent bubbles & silver‑streaks | |
| Barrel setting | Rear zone | 185‑205 ℃ | Processing window: melt onset ~160 ℃, thermal decomposition＞270 ℃ |
| Middle zone | 220‑240 ℃ | Strictly control residence time | |
| Front zone | 210‑230 ℃ | ||
| Nozzle temperature | 210‑230 ℃ | ||
| Melt temperature | 210‑250 ℃ | ||
| Mold temperature | 35‑70 ℃ | Higher temperature improves gloss & reduces internal stress, extends cycle time | |
| Injection pressure | 68.6‑88.2 MPa | Set according to filling status and surface quality | |
| Injection speed | Medium | High speed may trigger surface defects and internal stress |
Note: All data for reference only, please refer to official TDS for mass‑production.
