SMMA - Injection molding grade
SMMA resin is a transparent copolymer made of MMA (Methyl methacrylate) and SM (Styrene monomer). It has the advantages of good processing properties and low residual stress in molded products, while also having optical properties and transparency at the level of acrylic resin. In particular, the moisture absorption is lower than that of conventional acrylic resins, making the material capable of being applied in hot and humid conditions. Due to its excellent chemical resistance to solvents including alcohol, it is suitable for applications such as cosmetic containers and food containers.
| Original Document | Technical Datasheet(English) Technical Datasheet(Chinese) | |||
| Features | Easy processingFood ContactChemical ResistanceAlcohol ResistantAnti-SolventLow Moisture Absorption | |||
| Appearance | Pellets/GranulesClear/Transparent | |||
| Processing | Injection | |||
| Physical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
|---|---|---|---|
Density/Specific Gravity | *** g/cm³ | ISO 1183 | |
Melt Mass Flow Rate(MFR) | |||
230°C/3.8 kg | *** g/10 min | ISO 1133 | |
Mold Shrinkage | |||
- | ***~*** % | ASTM D955 | |
Water Absorption | *** % | ASTM D570 | 24hr |
| Mechanical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Tensile Modulus | *** Mpa | ISO 527 | 1mm/min |
Tensile Strength | |||
Break | *** Mpa | ISO 527 | 5mm/min |
Tensile Elongation | |||
Break | *** % | ISO 527 | 5mm/min |
Flexural Modulus | *** Mpa | ISO 178 | 2mm/min |
Flexural Strength | |||
- | *** Mpa | ISO 178 | 2mm/min |
| Impact | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Charpy Notched Impact Strengh | |||
- | *** kJ/m² | ISO 179 | |
| Hardness | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Rockwell M | *** M | ISO 2039-2 | |
| Thermal | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Heat Deflection Temperature(HDT) | |||
1.8 Mpa (264 psi)（18.6kg/cm²） | *** °C | ISO 75 | |
Vicat Softening Temperature(VST) | *** °C | ISO 306/B50 | |
Coefficient of Linear Thermal Expansion | |||
- | *** E-6/°C | ASTM D 696 | |
Processing Temperature | ***~*** °C | - | |
Mould temperature | ***~*** °C | - | |
| Flammability | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Flame Rating | |||
HB | *** mm | IEC 60695-11-10 | |
| Optical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Light Transmission | *** % | ISO 13468-1 | 3mm |
Haze | *** % | ISO 14782 | 3mm |
Refractive Index | *** - | ISO 489 | nd |
The information presented on this datasheet was acquired by AjiEng.com from the producer of the material. AjiEng.com makes substantial efforts to assure the accuracy of this data. However, AjiEng.com assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.
