Description
ECP 9303 is a proprietary TBA ECP injection moulding compound utilising multi wall carbon nanotube technology to give a permanently conductive material. Special compounding techniques at low filler loadings ensure the retention of physical properties and excellent cleanliness.
APPLICATIONS
Mouldings made from ECP 9303 exhibit excellent dimensional and chemical stability, and mouldings are clean and non-sloughing.
Typical applications include:
- Production aids for the electronics industry (e.g. storage boxes, bins and PCB racks.
- Static safe handling equipment tools
- Static dissipating equipment housing
- Applications requiring a degree of EMI shielding
PROPERTIES
Parameter Condition Typical Value Unit Test method
Surface resistance 23+/-2C 1.0E+06 ohm/sq BS 2044:1984 /3
Volume resistance 23+/-2C 7.0E+02 ohm.cm BS 2044:1984 /3
EMI Shielding 100MHz/1GHz 34/34 dB Reflectometer
Specific Gravity 1.23 g/cm3 BS EN ISO 1183-1:2004
Melt flow rate 260C/5kg 3.7 g/10 min ISO 1133:1991
Tensile strength at break 50mm/min 41 MPa ISO 527-2:1997
Tensile modulus 1mm/min 2633 MPa ISO 527-2:1997
Elongation at break 50mm/min 18.9 %
Flexural modulus 2mm/min 2075 MPa ISO 178:2003
Izod Impact 23+/-2C 21.1 KJ/m2 ISO179-1:2001
Heat deflection temp 1.8MPa 92.0 °C BS EN ISO 75-1&2
RECOMMENDED PROCESSING CONDITIONS
MACHINE
It is recommended that an in-line reciprocating screw machine be used to injection mould ECP 9303.
CYLINDER TEMPERATURE
260-290°C. The optimum cylinder temperature will depend upon the size and complexity of the moulding.
MOULD TEMPERATURE
75-90°C. The optimum mould temperature will depend upon the size and complexity of the moulding.
MOULD DESIGN
Moulds should be designed to obtain rapid filling, and multiple gates for large area mouldings are recommended with the gate positioned to avoid possible formation of weld lines.
MACHINE & MOULD WEAR
The intensive compounding action, which takes place during the manufacture of ECP 9603, ensures encapsulation of the reinforcement in polymer. This tends to minimise wear on injection screws and moulds. There is no evidence to show that ECP 9303 causes corrosion of mould steels.
MOISTURE
ECP 9303 absorbs moisture, therefore, prior to moulding please ensure thorough drying (i.e., 100°C for min. 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 these finished mouldings. If necessary, the material should be re-dried at 90-100°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 mouldings 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.
HEALTH & SAFETY
CAUTION – THIS MATERIAL IS ELECTRICALLY CONDUCTIVE
As this material does not have the insulting 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 labelled.
These materials are stable at ambient and normal processing temperatures and can be processed safely in moulding and extrusion equipment at up to 300°C.
INFORMATION IN THIS PUBLICATION AND OTHERWISE SUPPLIED TO USERS IS BASED UPON OUR GENERAL EXPERIENCES AND IS GIVEN IN GOOD FAITH, BUT BECAUSE OF THE PARTICULARS WHICH ARE OUTSIDE OUR KNOWLEDGE AND CONTROL AND AFFECT THE USE OF THE PRODUCT, NO WARRANTY IS GIVEN OR IS IMPLIED WITH RESPECT TO SUCH INFORMATION. FREEDOM FROM PATENT RIGHTS MUST NOT BE ASSUMED.
