Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Fillers Included
- Polymer Name
- Plastics & Elastomers Functions
- Technologies
- Product Families
Features & Benefits
- Materials Features
- Overview
- ECP 104/4264 Conductive Polypropylene for Injection Molding - Low Resistance
Applications & Uses
- Applications
- Plastics & Elastomers End Uses
- Plastics & Elastomers Processing Methods
- Applications
Moldings made from ECP 104/4264 exhibit excellent dimensional stability. Typical applications include:
- Production aids for the electronics industry (eg, storage boxes, bins and PCB racks
- Audio/hi-fi accessories
- Static dissipating equipment housing and components requiring shielding and very conductive properties
Properties
- Physical Properties
| Value | Units | Test Method / Conditions | |
| Charpy Impact Strength (Notched) | 7 | KJ/m | - |
| Charpy Impact Strength (Unnotched) | 25 | KJ/m | - |
| Deflection Temperature (Under Load at 0.45 MPa) | 102 | °C | - |
| Deflection Temperature (Under Load at 1.81 Mpa) | 85 | °C | - |
| Flexural Modulus | 2.2 | GPa | - |
| Flexural Strength | 38 | Mpa | - |
| Izod Impact Strength | 41 | J/m | - |
| Melt Flow Index (at 230°C, 10 Kg Load) | 10 - 20 | dg./min | - |
| Shrinkage | 1.0 - 1.5 | % | - |
| Specific Gravity | 1.16 | g/cm³ | - |
| Surface Resistivity | max. 50 | ohms/sq | ASTM D-257 |
| Tensile Strength | 21 | MPa | - |
Technical Details & Test Data
- Recommended Processing Conditions
- Machine - It is recommended that an in-line reciprocating screw machine be used to injection mold ECP 104/4264, but it is possible to process this material on plunger injection molding machines.
- Cylinder Temperature - 180 - 230°C. The optimum cylinder temperature will depend upon the size and complexity of the molding.
- Mold Temperature - 30 - 50°C. The optimum mold temperature will depend upon the size and complexity of the molding.
- Mold Design - Molds should be designed to obtain rapid filling and multiple gates for large area moldings are recommended with the gate positioned to avoid possible formation of weld lines.
- Machine and Mold Wear - The intensive compounding action which takes place during the manufacture of ECP 104/4264 ensures encapsulation of the reinforcement in polymer. This tends to minimize wear on injection screws and molds. There is no evidence to show that ECP 104/4264 causes corrosion of mold steels.
- Moisture - ECP 104/4264 absorbs moisture therefore prior to molding please ensure thorough drying (ie, 90°C for 4 hours). Materials should be re-dried if all the material is not used within 2 - 3 hours of opening the bag. Excess moisture may show as splash marks on the surface of the finished moldings. If necessary the material should be re-dried at 80 - 90 °C in shallow trays for 2 - 3 hours. Other forms of drying of equivalent effect are also suitable.
- Use of Regrind - Runners sprues and scrap moldings can be reground and blended with virgin materials. Regrind additions should not exceed 10% by weight of the virgin material otherwise some reduction in properties may be experienced.
Safety & Health
- Safety and Health
Caution - This material is electrically conductive.
As this material does not have the insulating properties normally associated with polymers, due safety precautions must be taken in use and it is recommended that all products made from this material are suitably labeled.
Polypropylene based materials are stable at ambient and normal processing temperatures and can be processed safely in molding and extrusion equipment at up to 235°C.