High-density polyethylene (HDPE) is a kind of high-crystalinity, non-polar thermoplastic resin. It’s a milky white translucent waxy solid with good chemical stability, resistant to most acid, alkali and organic solutions, good insulation, easy to weld.
Application：Widely used in the chemical, mechanical, electric power, packaging, food and other industries to manufacture wear resistant and impact resistant mechanical parts, such as drinking water pipes, hot water pipes, transportation containers, pump valve parts,medical equipment, seals, sliding profiles, etc.
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Property
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Items
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Test method
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Unit
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Results
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Mechanical property
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Tensile strength
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ISO 527-1、2
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Mpa
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32
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Mechanical property
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Bending strength
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ISO 178
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Mpa
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30
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Mechanical property
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Bending tensile stress
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ISO 527
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Mpa
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30
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Mechanical property
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Stretching strain at break
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ISO 527
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%
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Mechanical property
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Tensile modules of elasticity
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ISO 527
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Mpa
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900
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Mechanical property
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Compressive stress under 1% and 2% normal strain
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ISO 604
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Mpa
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3/-
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Mechanical property
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Pendulum impact test
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ISO 179/1eA
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kj/m²
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Mechanical property
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Rockwell hardness
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HR
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HR
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Physical property
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Density
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ISO 1183
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g/cm³
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0.96
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Physical property
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Water absorption (23℃ water soak for 24 hours)
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ISO 62
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%
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Physical property
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Coefficients of linear thermal expansion (23-100℃)
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m/(m·k)
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155×10⁻⁶
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Heat resistance
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Flammability (UL)
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UL94
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HB
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HB
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Heat resistance
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Melting point
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℃
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130
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Heat resistance
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Temperature resistance (continuous)
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℃
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90
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Heat resistance
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Temperature resistance (short time)
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℃
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110
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Insulating property
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Dielectric strength
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ISO 60243
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kv/mm
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＞50
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Insulating property
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Volume resistance
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ISO 60093
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Ω·cm
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≥10¹⁵
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Insulating property
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Surface resistance
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ISO 60093
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Ω
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≥10¹⁶
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Insulating property
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Relative permittivity -100HZ/1MHZ
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ISO 60250
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2.4/-
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Chemical property
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Acid resistance
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+
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Chemical property
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Alkali resistance
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+
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Chemical property
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Carbonation resistance
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+
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Chemical property
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Aromatic compounds resistance
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0
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Chemical property
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Ketone resistance
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+
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Other
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Adhesion
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0
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Other
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Friction coefficient
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0.3
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Other
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Food contact
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+
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