Enhanced TDS
Identification & Functionality
- Additives Included
- 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)
- Mechanical Properties
Value Units Test Method / Conditions Tensile Modulus 3000.0 MPa ISO 527-1/-2 Yield Stress 65.0 MPa ISO 527-1/-2 Yield Strain 3.9 % ISO 527-1/-2 Strain at Break 5.3 % ISO 527-1/-2 Charpy Unnotched Impact Strength (at 23°C) 50 kJ/m² ISO 179/1eU Charpy Notched Impact Strength (at 23°C) 3.5 kJ/m² ISO 179/1eA Charpy Notched Impact Strength (at -30°C) 3.5 kJ/m² ISO 179/1eA - Typical Properties
Value Units Test Method / Conditions Polymer Abbreviation PBT FR(17) - - Density 1450 kg/m³ ISO 1183 Viscosity Number (Solution 0,005 g/ml Phenole/1,2 Dichlorbenzol 1:1) 123 cm³/g ISO 307, 1157, 1628 Water Absorption (Equilibrium in Water, at 23°C) 0.4 % 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 Deflection Temperature 1.8 (HDT A) 60.0 °C ISO 75-1/-2 Deflection Temperature Under Load 0.45 MPa (HDT B) 170.0 °C ISO 75-1/-2 Coefficient of Linear Thermal Expansion, Longitudinal (at 23°C - 55°C) 95.0 x 10⁻⁶ /K ISO 11359-1/-2 Coefficient of Linear Thermal Expansion, Transverse (at 23°C - 55°C) 103.0 x 10⁻⁶ /K ISO 11359-1/-2 - Electrical Properties
Value Units Test Method / Conditions Relative Permittivity (1 MHz) 3.3 - IEC 62631-2-1 Dissipation Factor (1 MHz) 170.0 x 10⁻⁴ IEC 62631-2-1 Volume Resistivity 1×10¹³ Ohm.m IEC 62631-3-1 Surface Resistivity 1×10 ¹⁴ Ohm IEC 62631-3-2 Comparative Tracking Index - CTI (Solution A) 250 - IEC 60112 - Shrinkage
Value Units Test Method / Conditions Molding Shrinkage (Free, Longitudinal, Plate, with Film Gate) ⁴ 1.5 % Molding shrinkage(free, transversal, plate with film gate)⁴ 1.5 % - Flammability
Value Units Test Method / Conditions Glow Wire Flammability Index - GWFI (Thickness) 960 (1) °C (mm) IEC 60695-2-12 - Injection Molding
Value Units Test Method / Conditions Melt Temperature (Range) 245 - 270 °C Mold Temperature (Range) 40 - 70 °C - - Drying
Value Units Test Method / Conditions Moisture Content max. 0.04 % - Dryer Temperature ³ 80. 120 °C Drying Time 4 h - - Machine Settings
Value Units Test Method / Conditions Temperature Hopper Throat 80 °C - Cylinder Temperature 1 (Feed Zone) 240 °C - Cylinder Temperature 2 (Compression) 245 °C - Cylinder Temperature 3 (Metering - Zone, in Front of The Screw) 250 °C - Cylinder Temperature 4 (Nozzle) 250 °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 Volume Flow Rate(275°C/2.16 kg) 30.0 cm³/10min ISO 1133 Mould Temperature (Injection Moulding) 40 - 70 °C - Molding Shrinkage (Model-Housing 1.5 mm) 1.3 - 1.5 % - Molding Shrinkage (Parallel) 1.8 % ISO 294-4 Molding Shrinkage (Normal) 1.9 % ISO 294-4 - Note
1. If product name or properties don't state otherwise.
2. The asterisk symbol '*' signifies inapplicable properties.
3. Dry air dryer or vacuum dryer
4. 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.
- Safety Instructions
- Provide suitable exhaust ventilation at the drying process and in the area surrounding the melt outlet of processing machines. Closed containers should only be opened in well-ventilated areas. Ensure thorough ventilation of stores and work areas. When incorrectly processing an unpleasant odour can be produced, especially when the recommended processing parameters are exceeded. Check
- - Moisture content of pellets
- - Melt temperature
- - Residence time
- When there is a strong odour, immediately check processing parameters, ventilate the area well and recheck moisture content of material. If necessary stop processing and redry the material. Any short stoppages in production, it is recommended that you inject material into the mould not purge an air shot. It is advisable to dispose of purgings etc into water containers.
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.