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Description: PLEXIGLAS® zk40is impact modified molding compounds based on polymethyl methacrylate (PMMA). The grades of the zk series are the classical impact-modified PLEXIGLAS® molding compounds. (zk30 and zk50)PLEXIGLAS® zk molding compounds are particularly suitable for injection molding. They can, however, also be used for profile extrusion or coextrusion. Uses of PLEXIGLAS® zk molding compound: lighting fixtures, writing and drawing utensils, domestic appliances and sanitary ware.Information provided by degussa.
Details
- high break resistance and impact strength
- excellent transmission
- claritybrilliant appearance
- improved resistance to stress cracking
- dishwasher resistance
- AMECA listing
profile extrusion or coextrusion
injection molding
lighting fixtures, writing and drawing utensils, domestic appliances and sanitary ware
Technical data
| Quantity | Value | Unit | Comment |
|---|---|---|---|
| Processing Temperature | 230 - 240 | ºC | Cylinder/Barrel Temperature |
| Appearance Properties | |||
| Refractive index | 1.49 | ISO 489 | |
| Physical Properties | |||
| Density | 1.13 | g/ml | ISO 1183 |
| MFI | 0.791 | g/10min | ISO 1133@Load 3.80 kg,Temperature 230 °C |
| Melting range | 230 - 240 | ºC | |
| Thermal Properties | |||
| Dry Time | 120 - 180 | min | Desiccant-type drier |
| Glass transition Temperature | 115 | ºC | ISO 11357 |
| Thermal Expansion | 120 | µm/m-°C | ASTM E831 @Temperature 0.000 -50.0 °C |
| Vicat softening temperature | 94.0 | ºC | B50; ISO 306 |
| Heat Deflection temperature | 92.0 | ºC | ISO 75; at 0.46 MPa |
| Heat Deflection temperature | 85.0 | ºC | ISO 75; at 1.8 MPa |
| Flameability | IEC 707@Thickness 1.60 mm | ||
| Mechanical Properties | |||
| Tensile Stress at yield-MD | 42.0 | MPa | 50mm/min; ISO 527 |
| Elongation at break-MD | 30 | % | ISO 527 |
| Tensile modulus-MD | 1600 | MPa | 1mm/min; ISO 527 |
| Elongation at yield | 4.5 | % | 50mm/min; ISO 527 |
| (Charpy Impact Strength(unnotched | 80 | kJ/m² | ISO 179@Temperature 23.0 °C |
| Chemical Properties | |||
| Moisture absorption | 0.50 | % | 23°C, 50%; ISO 62; at Equilibrium |
| Water absorption | 1.5 | % | Immersion; ISO 62;at Saturation |
| Optical Properties | |||
| Transmittance | 90 | % | Transmission Factor; DIN 5036;Visible |
| Process Properties | |||
| Mold Temperature | 50.0 - 70.0 | ºC | |
| Drying Temperature | <85.0 | ºC | Predrying |
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