Description
ECP 128/FR is a low dust conductive flame retardant rotational moulding compound based on carbon black and low density polyethylene. It is designed to comply with the electrical conductivity requirements for materials as described in Defence Standard 59-98 (1979) and BS IEC 61340-5-1:2007 specifications which refer to the protection of electronic components from electrostatic damage.
APPLICATIONS
ECP 128/FR is suggested for the rotational moulding of articles requiring a degree of permanent electrical conductivity. Such products find application in areas where the accumulation of static electrical charges cause problems e.g. Electronic assembly areas, handling explosives or powder handling.
PROPERTIES
Surface Resistivity (ohms/sq.) 10 7 W/sq (ASTM D-257)
RECOMMENDED PROCESSING CONDITIONS
MACHINE
ECP 128/FR can be processed on conventional processing equipment.
PROCESSING TEMPERATURE
Suggested moulding temperatures are in line with those for polyethylene typically 150°C – 190°C.
MOISTURE
ECP 128 absorbs moisture, therefore, prior to moulding please ensure thorough drying (ie, 80 °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 mouldings. 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.
PHYSICAL PROPERTY TEST METHOD UNITS VALUE
Melt Flow Index ASTM D1238 g/10mins 5
Density ASTM D792 g/cm³ 0.935 (1.00 as FR version)
Tensile Strength ASTM D638 MPa 16
at Break (50mm/min)
Elongation at Break ASTM D638 % 600
Flexural Modulus ASTM D790 MPa 500
Brittleness Temperature ASTM D746 °C < -70
Shore Hardness ASTM D1706 – 66
Volume Resistivity IEC 93 Ohm.mm 8.0 x 107
Surface Resistivity IEC 93 Ohm 2.2 x 107
HEALTH & SAFETY
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 suitable labelled.
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.
