Enhanced TDS
Identification & Functionality
- Chemical Family
- Fillers Included
- 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)
- Mechanical Properties
Value Units Test Method / Conditions Tensile Modulus 8700 MPa ISO 527-1/-2 Stress at Break 120.0 MPa ISO 527-1/-2 Strain at Break 2.6 % ISO 527-1/-2 Flexural Modulus 8700 MPa ISO 178 Flexural Strength 210.0 MPa ISO 178 Charpy Unnotched Impact Strength (at 23°C) 50 kJ/m² ISO 179/1eU Charpy Unnotched Impact Strength (at -30°C) 40 kJ/m² ISO 179/1eU Charpy Notched Impact Strength (at 23°C) 6 kJ/m² ISO 179/1eA - Typical Properties
Value Units Test Method / Conditions Polymer Abbreviation PBT-GF25 FR(53+30) - - Density 1580 kg/m³ ISO 1183 Viscosity Number (Solution 0.005 g/ml Phenole/1,2 Dichlorbenzol 1:1) 110 cm³/g ISO 307, 1157, 1628 Water Absorption (Saturation in Water at 23°C) 0.4 % Similar to ISO 62 Moisture Absorption (Equilibrium, at 23°C/50% r.h.) 0.2 % Similar to ISO 62 Melt Volume Flow Rate (at 275°C/2.16 kg) 10 cm³/10min ISO 1133 Bulk Density approx. 0.7 g/cm³ - - Thermal Properties
Value Units Test Method / Conditions Heat Deflection Temperature A (1.8 MPa) 210 °C ISO 75-1/-2 Heat Deflection Temperature (Under Load 0.45 MPa B) 220 °C ISO 75-1/-2 Coefficient of Linear Thermal Expansion, Longitudinal (at 23°C - 55°C) 29x10⁻⁶ /K ISO 11359-1/-2 Coefficient of Linear Thermal Expansion, Transverse (at 23°C - 55°C) 167x10⁻⁶ /K ISO 11359-1/-2 - Electrical Properties
Value Units Test Method / Conditions Comparative Tracking Index (Solution A) 600 - IEC 60112, test liquid A Relative Permittivity (1 MHz) 3.9 - IEC 62631-2-1 Dissipation Factor (1 MHz) 150x10⁻⁴ - IEC 62631-2-1 Volume Resistivity 1×10¹³ Ohm.m IEC 62631-3-1 Surface Resistivity 1×10¹⁴ Ohm IEC 62631-3-2 - Shrinkage
Value Units Test Method / Conditions Molding Shrinkage (Parallel) 0.5 % ISO 294-4 Molding Shrinkage (Normal) 1.3 % ISO 294-4 - Flammability
Value Units Test Method / Conditions Glow Wire Flammability Index (Thickness) 960 (1.5) °C (mm) IEC 60695-2-12 - Injection Molding
Value Units Test Method / Conditions Melt Temperature (Range) 250 - 270 °C - Melt Temperature (Optimal) 265 °C - Mold Temperature (Optimal) 80 °C - Mold Temperature (Range) 60 - 100 °C - Residence Time max. 5 min - - Drying
Value Units Test Method / Conditions Moisture max. 0.04 % - Dryer Temperature ¹ 80 - 120 °C - Drying Time 4 h - - Machine Settings
Value Units Test Method / Conditions Cylinder Temperature 3 (Metering-zone, in Front of the Screw) 270 °C - Temperature Hopper Throat 80 °C - Cylinder Temperature 1 (Feed Zone) 260 °C - Cylinder Temperature 2 (Compression) 265 °C - Cylinder Temperature 4 (Nozzle) 270 °C - Peripheral Screw Speed max. 0.25 m/s - - Processing Properties
Value Units Test Method / Conditions Melting Temperature 223.0 °C ISO 11357-1/-3, DSC Melt Temperature (Injection Molding/Extrusion) 250 - 270 °C - Mold Temperature (Injection Molding) 60 - 100 °C - Molding Shrinkage (Model-housing 1.5 mm) 0.7 % - - Notes
- Dry air dryer or vacuum dryer
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.
- Safety Instructions
Provide suitable exhaust ventilation in the area surrounding the melt outlet of processing machines.
Ensure thorough ventilation of work areas.
When incorrectly processing an unpleasant odour can be produced, especially when the recommended processing parameters are exceeded. Check - Melt temperature -Residence time
When there is a strong odour, immediately check processing parameters and ventilate the area well. If necessary decrease processing temperatures or reduce the residence time.
Any short stoppages in production, it is recommended that you inject material into the mould not purge an air shot.
Any molten material drooling from the machine nozzle or hot runner nozzles can self-ignite when in open atmosphere. It is therefore advisable to dispose of purgings etc into water containers.
Packaging & Availability
- Packaging Information
Standard packaging includes the 25-kg-bag, the 1000 kg octabin (octagonal container) or the 1000 kg big bag.
Other forms of packaging are possible subject to agreement. All containers are tightly sealed and should be opened only immediately prior to processing.
Further precautions for preliminary treatment and drying are described in the processing section of the brochure.
Storage & Handling
- Storage Conditions
Ultradur® can be stored for a longer period of time in dry, well vented rooms without causing problems in processing.
Ultradur® should generally have a moisture content of less than 0,04% when being processed.
Pre-drying is also for the addition of batches, e.g. in the case of inhouse pigmentation. 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.
This can possibly take a very long time. 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.