PA6.10: Polyamide 6.10

General Properties

Short Name:

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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 TemperatureThe glass transition is one of the most important properties of amorphous and semi-crystalline materials, e.g., inorganic glasses, amorphous metals, polymers, pharmaceuticals and food ingredients, etc., and describes the temperature region where the mechanical properties of the materials change from hard and brittle to more soft, deformable or rubbery.Glass Transition Temperature40 to 70°C
Melting Temperatures and EnthalpiesThe enthalpy of fusion of a substance, also known as latent heat, is a measure of the energy input, typically heat, which is necessary to convert a substance from solid to liquid state. The melting point of a substance is the temperature at which it changes state from solid (crystalline) to liquid (isotropic melt).Melting Temperature210 to 230°C
Melting Temperatures and EnthalpiesThe enthalpy of fusion of a substance, also known as latent heat, is a measure of the energy input, typically heat, which is necessary to convert a substance from solid to liquid state. The melting point of a substance is the temperature at which it changes state from solid (crystalline) to liquid (isotropic melt).Melting Enthalpy117 to 227 J/g
Decomposition reactionA decomposition reaction is a thermally induced reaction of a chemical compound forming solid and/or gaseous products. Decomposition Temperature450 to 470°C
Young's Modulus2200 MPa
Coefficient of Linear Thermal Expansion (CLTE/CTE)The coefficient of linear thermal expansion (CLTE) describes the length change of a material as a function of the temperature.Coefficient of Linear Thermal Expansion70 to 90 *10-6/K
Specific Heat Capacity1.6 J/(g*K)
Thermal ConductivityThermal conductivity (λ with the unit W/(m•K)) describes the transport of energy – in the form of heat – through a body of mass as the result of a temperature gradient (see fig. 1). According to the second law of thermodynamics, heat always flows in the direction of the lower temperature.Thermal Conductivity0.2 W/(m*K)
DensityThe mass density is defined as the ratio between mass and volume. Density1.07 to 1.09 g/cm³
MorphologySemi-crystalline thermoplastic
General propertiesVery high mechanical strength. Good UV and chemical resistance. Good heat resistance. Low water absorption compared to short-chained standard polyamides
ProcessingInjection molding, extrusion, film blowing
ApplicationsHousings, transmission components. Electronic components. Pipes, plug-in connectors or container in cooling circuits

NETZSCH Measurement

InstrumentDSC 204 F1 Phoenix®
Sample Mass10.50 mg
IsothermalTests at controlled and constant temperature are called isothermal.Isothermal Phase5 min
Heating/Colling Rates10 K/min
CrucibleAl, pierced lid
AtmosphereN2 (50 ml/min)

Evaluation

The present sample shows a Glass Transition TemperatureThe glass transition is one of the most important properties of amorphous and semi-crystalline materials, e.g., inorganic glasses, amorphous metals, polymers, pharmaceuticals and food ingredients, etc., and describes the temperature region where the mechanical properties of the materials change from hard and brittle to more soft, deformable or rubbery.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 ExothermicA sample transition or a reaction is exothermic if heat is generated.exothermal post-CrystallizationCrystallization is the physical process of hardening during the formation and growth of crystals. During this process, heat of crystallization is released.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 StressStress is defined as a level of force applied on a sample with a well-defined cross section. (Stress = force/area). Samples having a circular or rectangular cross section can be compressed or stretched. Elastic materials like rubber can be stretched up to 5 to 10 times their original length.stress in the material and/or evaporation of water.