UHMWPE hs extremely high molecular weight (HDPE usually has a molecular weight of only 20,000 to 300,000) gives it excellent performance, and it is a moderately priced, high-performance thermoplastic engineering plastic that combines the advantages of various plastics with ordinary polyethylene and Other engineering plastics have unmatched wear resistance, impact resistance, self-lubrication, corrosion resistance, impact energy absorption, low temperature resistance, hygienic non-toxicity, non-adhesion, low water absorption and low density. In fact, there is currently no single polymer material with so many excellent properties.
Item | Unit | Value | ||||
Physical Property | Average Molecular Weight | G/mol | 3 million | 5 million | 7.2 million | 9.2 million |
Density | G/cm3 | 0.96 | 0.96 | 0.96 | 0.96 | |
Water Absorption Rate | % | <0.01 | <0.01 | <0.01 | <0.01 | |
Max Working Temp | ℃ | 80 | 80 | 80 | 80 | |
Min Working Temp | ℃ | -269 | -269 | -269 | -269 | |
Mechanical Property | Tensile Stress | Mpa | 0.22±0.05 | 0.34±0.07 | 0.51±0.09 | 0.7±0.09 |
Yield Stress | Mpa | ≥17 | ≥17 | ≥17 | ≥17 | |
Yield Elongation | % | ≤20 | ≤20 | ≤20 | ≤20 | |
Elongation at Break | % | >50 | >50 | >50 | >50 | |
Tensile Modulus | Mpa | 790 | 680 | 680 | 570 | |
Charpy Impact Strength | KJ/M2 | ≥120 | ≥180 | ≥130 | ≥90 | |
Shore Hardness | – | 60 | 60 | 61 | 60 | |
Slurry Abrasion Test | 100 | 90 | 80 | 70 | ||
Static Friction Coefficient | 0.07~0.15 | 0.07~0.15 | 0.07~0.15 | 0.07~0.15 | ||
Kinetic Friction Coefficient | 0.07~0.11 | 0.07~0.11 | 0.07~0.11 | 0.07~0.11 | ||
Thermal Property | Distortion Temp. | ℃ | 85 | 85 | 85 | 85 |
Vicat Softening Point | 130 | 130 | 130 | 130 | ||
Melting Point | ℃ | 130~135 | 130~135 | 130~135 | 130~135 | |
Linear Thermal Expansion Coefficient | ℃ | 2*10-4 | 2*10-4 | 2*10-4 | 2*10-4 | |
Thermal Conductivity | Cal/cm | 0.41 | 0.41 | 0.41 | 0.41 | |
Electrical Property | Volume Resistivity | Ωm | >1012 | >1012 | >1012 | >1012 |
Surface Resistivity | Ω | >1012 | >1012 | >1012 | >1012 | |
Dielectric Constant | 3 | 3 | 3 | 3 | ||
Dielectric Strength | KV/mm | 70 | 70 | 70 | 70 | |