Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Plastics & Elastomers Functions
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Materials Features
Applications & Uses
- Markets
- Applications
- Plastics & Elastomers End Uses
- Plastics & Elastomers Processing Methods
Properties
- Color (Properties)
- Flame Rating
- Mechanical Properties
Value Units Test Method / Conditions Tensile Modulus 2600.0 MPa ISO 527-1/-2 Yield Stress (50 mm/min) 60 MPa ISO 527-1/-2 Yield Strain (50 mm/min) 3.7 % ISO 527-1/-2 Nominal Strain at Break (50 mm/min) 30 % ISO 527-1/-2 Charpy Unnotched Impact Strength (at 23°C) 140 kJ/m² ISO 179/1eU Charpy Unnotched Impact Strength (at -30°C) 85 kJ/m² ISO 179/1eU Charpy Notched Impact Strength (at 23°C) 3.8 kJ/m² ISO 179/1eA Charpy Notched Impact Strength (at -30°C) 4.9 kJ/m² ISO 179/1eA Flexural Modulus 2600.0 MPa ISO 178 Flexural Strength 90.0 MPa ISO 178 - Typical Properties
Value Units Test Method / Conditions Polymer Abbreviation PBT - - Density 1300.0 kg/m³ ISO 1183 Viscosity Number (Solution 0,005 g/ml Phenole/1,2 Dichlorbenzol 1:1) 112 cm³/g ISO 307, 1157, 1628 Black (at 23°C) Passed - - Water Absorption (Equilibrium in Water, at 23°C) 0.5 % similar to ISO 62 Moisture Absorption, Equilibrium (at 23°C/50% r.h) 0.25 % similar to ISO 62 Bulk Density 0.7 - 0.8 g/cm³ - - Thermal Properties
Value Units Test Method / Conditions HDT A (1.80 MPa) 60 °C ISO 75-1/-2 HDT B (0.45 MPa) 135 °C ISO 75-1/-2 Service Temperature (Short Cycle Operation) max. 160 °C - Coefficient of Linear Thermal Expansion, Longitudinal (at 23°C - 55°C) 115.0 x 10⁻⁶ /K ISO 11359-1/-2 Coefficient of Linear Thermal Expansion, Transverse (at 23°C - 55°C) 115.0 x 10⁻⁶ /K ISO 11359-1/-2 Thermal Conductivity 0.27 W/(m K) DIN 52612-1 - Electrical Properties
Value Units Test Method / Conditions Relative Permittivity (100 Hz) 3.4 - IEC 62631-2-1 Relative Permittivity (1 MHz) 3.3 - IEC 62631-2-1 Dissipation Factor (100 Hz) 20.0 x 10⁻⁴ IEC 62631-2-1 Dissipation Factor (1 MHz) 200.0 x 10⁻⁴ IEC 62631-2-1 Volume Resistivity 1×10 ¹⁴ Ohm.m IEC 62631-3-1 Surface Resistivity 1×10¹³ Ohm IEC 62631-3-2 Comparative Tracking Index - CTI 550 - IEC 60112,Test LIquid A - Shrinkage
Value Units Test Method / Conditions Molding Shrinkage (Free, Longitudinal, Plate, with Film Gate) ⁵ 1.5 % Molding Shrinkage (Free,transversal, Plate, with Film Gate) ⁵ 1.7 % - Flammability
Value Units Test Method / Conditions Burning Behaviour (at Thickness D = 1.5 mm) HB class IEC 60695-11-10 Automotive Materials (Thickness D > 1mm) ³ Passed - ISO 3795, FMVSS 302 - Injection Molding
Value Units Test Method / Conditions Melt Temperature (Range) 230 - 275 °C Mold Temperature (Range) 40 - 70 °C - - Drying
Value Units Test Method / Conditions Moisture Content max. 0.04 % - Dryer Temperature ⁴ 80 - 120 °C Drying Time 4 h - - Machine Settings
Value Units Test Method / Conditions Temperature Hopper Throat 80 °C - Cylinder Temperature 1 (Feed Zone) 250 °C - Cylinder Temperature 2 (Compression) 255 °C - Cylinder Temperature 3 (Metering - Zone, in Front of The Screw) 260 °C - Cylinder Temperature 4 (Nozzle) 260 °C - Peripheral Screw Speed max. 0.25 m/s - - Processing Properties
Value Units Test Method / Conditions Melt Volume Flow Rate (at 250°C and 10 kg) 35.0 cm³/10min ISO 1133 Melting Temperature 223.0 °C ISO 11357-1/-3, DSC Mould Temperature (Injection Moulding) 40 - 70 °C - Molding Shrinkage (Parallel) 1.3 % ISO 294-4 Molding Shrinkage (Normal) 1.6 % ISO 294-4 - Note
- If product name or properties don't state otherwise.
- The asterisk symbol '*' signifies inapplicable properties.
- + = passed
- Dry air dryer or vacuum dryer
- Plate 150 x 150 x 3 mm, film gated
Regulatory & Compliance
- Certifications & Compliance
- Quality Standards
Technical Details & Test Data
- VISCOSITY NUMBER - RESIDENCE TIME
Unnecessarily high melt temperatures and excessively long residence times of the melt in the cylinder and the hot runner can bring about molecular degradation. The figure shows an example (Ultradur® B4520) illustrating how the viscosity number acts as a measure of the molecular weight as a function of the melt temperature and residence time. Based on experience material degradation of less than 10 % based on the measured viscosity in solution of the granules and the molding is tolerable. In the event of values higher than this the processing and drying parameters should be checked.
Safety & Health
- Product Safety
Ultradur® melts are stable at temperatures up to 280°C and do not give rise to hazards due to molecular degradation or the evolution of gases and vapors.
Like all thermoplastic polymers, however, Ultradur decomposes on exposure to excessive thermal stresses, e.g. when it is overheated or as a result of cleaning by burning off. At temperatures of > 290°C can be emitted: carbon monoxide, tetrahydrofuran.Under special fire conditions traces of other toxic substances are possible.
Formation of further decomposition and oxidation products depends upon the fire conditions. When Ultradur® is properly processed and there is adequate suction at the die no risks to health are to be expected.Further safety information see safety data sheet of individual product.
Packaging & Availability
- Packaging Conditions
Standard packaging includes the 25-kg-bag, the 1000 kg octabin (octagonal container) or the 1000 kg big bag.
All containers are tightly sealed and should be opened only immediately prior to processing.
Storage & Handling
- Storage Conditions
Ultradur® can be stored for a longer period of time in dry, well vented rooms without causingproblems in processing.
Ultradur® should generally have a moisture content of less than 0,04% when being processed.
In order to ensure reliable production, therefore, pre-drying should generally be the rule and the machine should be loaded via a closed conveyor system.
In order to prevent the formation of condensed water, containers stored in unheated rooms must only be opened when they have attained the temperature prevailing in the processing area.
Measurements have shown that the interior of a 25-kg bag originally at 5°C had reached the temperature of 20°C in the processing area only after 48 hours.