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WHAT IS UHMWPE
UHMW-PE is defined as polyethylene whose molecular weight is 3.1 million or higher. When making this determination, it was found that physical properties increased rapidly as lower MW values increased, and then leveled off at the 3,100,000 value. As with most high-performance polymers, the processing of UHMW-PE is not easy. Because of its high melt viscosity, conventional molding and extrusion processes would break the long molecular chains that give the material its excellent properties. Current manufacturing methods include compression molding, ram extrusion and the warm forging of extruded slugs. UHMW-PE has the outstanding abrasion resistance and an extremely low coefficient of friction. Impact strength is high and chemical resistance is excellent.
As you can see UHMWPE has a diverse range of uses from manufacturing to medical as well as in wire and cable applications. This is due to its long list of benefits which meet specific requirements for many different jobs.
The advantages of UHMWPE include, but are not limited to:
Property: | Test Method (Standard) | Ticona GUI4152 | Ticona GUI4150,4120 | Unit |
Molecular weight |
| 1.5million-4million | 1.5million-8million |
|
Density | ISO 1183-1:2012/DIN53479 | 0.92-0.98 | 0.93-0.98 | g/cm³ |
Compression strength | ISO 604:2002 | ≥30 | ≥32 | Mpa |
Tensile strength | ISO527-2:2012 | ≥20 | ≥22 | Mpa |
Elongation at break | ISO527-2:2012 | ≥280 | ≥300 | % |
Dynamic Friction coefficient | ASTM D 1894/GB10006-88 | ≤0.20 | ≤0.18 |
|
Notched impact strength (Charpy) | ISO179-1:2010/GB/T 1043.1-2008 | ≥100 | ≥100 | kJ/m2 |
Abrasion wear index | ES-X60210-2008 | ≤30 | ≤30 | mg |
Vicat softing point | ISO306:2004 | ≥80 | ≥80 | °C |
Hardness shore-D | ISO 868:2003 | 60-65 | 61-66 | D |