LyondellBasell Petrothene® HR92953 Medium Density Polyethylene

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LyondellBasell Petrothene® HR92953 Medium Density Polyethylene
Categories:	Polymer; Thermoplastic; Polyethylene (PE); Medium Density (MDPE); Medium Density Polyethylene (MDPE), Extruded
Material Notes:	Applications PETROTHENE HR 92953 is a medium density polyethylene-based resin designed for use as jacketing for communications cable, including CATV and FOC. HR 92953 has a nominal carbon black content of 2.6% and antioxidant has been added to ensure thermal stability during processing. Processing Techniques HR 92953, like other thermoplastic polyolefin compounds, can be extruded as wire and cable insulation using a conventional extruder. Below are suggested extrusion conditions for HR 92953. These conditions are intended as general guidelines only and are not optimum values, since manufacturing conditions, such as extruder type and size, affect the processing of thermoplastic compounds. This product is from the former Equistar product line.
Key Words:	MDPE; Telecom/ Telecommunications; Jacketing; Black Compound
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Physical Properties	Original Value	Comments

Density	0.945 g/cc	ASTM D1505
ESCR 10% Igepal®	>= 1000 hour	ASTM D1693
Absorption Coefficient	450	ASTM D3349
Carbon Black Loading	2.6 %
Melt Flow	0.65 g/10 min	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Shore D	60	ASTM D2240
Tensile Strength at Break	4000 psi	ASTM D638
Tensile Strength, Yield	2400 psi	ASTM D638
Elongation at Break	880 %	ASTM D638

Electrical Properties	Original Value	Comments
Dielectric Constant	2.55 @Frequency 1e+6 Hz	ASTM D1531
Dielectric Strength	550 V/mil	DC; ASTM D149
Dissipation Factor	0.00050 @Frequency 1e+6 Hz	ASTM D1531

Thermal Properties	Original Value	Comments
CTE, linear	175 µm/m-°C @Temperature 20.0 °C	ASTM D696
Brittleness Temperature	<= -76.0 °C	F₅₀; ASTM D746

Processing Properties	Original Value	Comments
Feed Temperature	310 - 325 °F
Zone 2	350 - 380 °F
Zone 3	380 - 410 °F
Zone 4-x	400 - 425 °F
Adapter Temperature	400 - 425 °F
Die Temperature	400 - 425 °F

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