Borealis PP4821 Polypropylene Copolymer

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Borealis PP4821 Polypropylene Copolymer
Categories:	Polymer; Thermoplastic; Polypropylene (PP); Polypropylene Copolymer
Material Notes:	PP4821 is a thermoplastic, halogen-free, insulation compound based on a polypropylene copolymer. The composition of PP4821 is based on the elements Carbon and Hydrogen. Compounds based on these elements will therefore be the only significant constituents of the fumes due to the combustion of this product. Other elements may be present in concentrations less than 0.1% Typical characteristics: Superb system ageing compatibility Processability on most PVC/PE extrusion equipment Low water permeability Pre-drying not required Applications: 70°C rated insulation for building wires (installation cables) Power cables Flexible cords It can be used in areas sensitive to smoke or corrosive and toxic combustion products. PP4821 is stabilized for use in contact with copper. Specifications: PP4821 is expected to meet the applicable requirements included in the below mentioned standards provided it is processed using sound material handling and processing practices as well as appropriate testing procedures. Information provided by Borealis AG
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Physical Properties	Original Value	Comments

Density	0.905 g/cc	ISO 1183-1
Melt Flow	3.10 g/10 min @Load 2.16 kg, Temperature 230 °C	ISO 1133-1
Storage Temperature	10.0 - 30.0 °C

Mechanical Properties	Original Value	Comments
Hardness, Shore D	48.0 @Time 15.0 sec	ISO 868
Tensile Strength	18.0 MPa	ISO 527
	>= 14.4 MPa @Treatment Temp. 120 °C, Time 1.21e+6 sec	After ageing; IEC 60811-401
Elongation at Break	600 %	ISO 527

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 10.0 ohm-cm	IEC 62631
Dielectric Constant	2.20 @Frequency 50 Hz	IEC 60250
Dielectric Strength	>= 20.0 kV/mm	IEC 60243

Processing Properties	Original Value	Comments
Zone 1	190 °C
Zone 2	200 °C
Zone 3	220 °C
Zone 4	220 °C
Die Temperature	220 °C
Drying Temperature	100 °C	2 h in dehumidified air
Screw Speed	100 rpm
Shelf Life	24.0 Month

Descriptive Properties
Corrosivity of combustion fumes	<10 µS/mm	Conductivity, IEC 60754-2
	>4.3 pH	IEC 60754-2

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PBORE9871 / 323228

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