General Properties
Short Name:
Name:
PA6.10
Polyamide 6.10
Polyamide 6.10 is formed by the condensation of hexamethylene diamine and sebacic acid. Sebacic acid can be industrially made from castor oil. Therefore, polyamide 6.10 is also sometimes called biopolyamide or bio- based polyamide.
Structural Formula
Properties
| Glass Transition Temperature | 40 to 70°C |
|---|---|
| Melting Temperature | 210 to 230°C |
| Melting Enthalpy | 117 to 227 J/g |
| Decomposition Temperature | 450 to 470°C |
| Young's Modulus | 2200 MPa |
| Coefficient of Linear Thermal Expansion | 70 to 90 *10-6/K |
| Specific Heat Capacity | 1.6 J/(g*K) |
| Thermal Conductivity | 0.2 W/(m*K) |
| Density | 1.07 to 1.09 g/cm³ |
| Morphology | Semi-crystalline thermoplastic |
| General properties | Very high mechanical strength. Good UV and chemical resistance. Good heat resistance. Low water absorption compared to short-chained standard polyamides |
| Processing | Injection molding, extrusion, film blowing |
| Applications | Housings, transmission components. Electronic components. Pipes, plug-in connectors or container in cooling circuits |
NETZSCH Measurement
| Instrument | DSC 204 F1 Phoenix® |
| Sample Mass | 10.50 mg |
| Isothermal Phase | 5 min |
| Heating/Colling Rates | 10 K/min |
| Crucible | Al, pierced lid |
| Atmosphere | N2 (50 ml/min) |
Evaluation
The present sample shows a glass transition at 41°C in the 2nd heating (red), which is relatively low for polyamide 6.10, as well as a broad melting range with a total melting enthalpy of 71 J/g. The structure of the melting peak in the 2nd heating indicates the presence of different crystalline phases. The temperature of the endothermal main peak at 218°C is in the typical range for PA6.10. Immediately before melting, an exothermal post-crystallization occurred in the 1st heating (blue). The shallow signals between 90°C and approx. 140°C (also 1st heating) could be caused by the release of stress in the material and/or evaporation of water.