POLYETHYLENE (PE)
Polyethylene (PE) is a material with excellent shock absorbing and bending qualities; it wears very little and has good slide characteristics.
It can support temperatures of up to 80ºC, without suffering excessive mechanical strain and up to -200ºC, without breaking.
It has very low thermal conductivity.
It is waterproof and does not swell.
It has self-lubricating properties, particularly in dry sliding friction with metals, such as: steel, brass, copper.
| Propiedad | Ensayo | Unidad | Valor |
| Densidad | DIN 53479 | gr/cm3 | 0.96 / 0.98 |
| Esfuerzo punto fluencia | DIN 53455 | MPa | 24 / 31 |
| Alargamiento a rotura | DIN 53455 | % | 400 / 800 |
| Módulo de Elasticidad | DIN 53457 | MPa | 1000 / 1400 |
| Dureza de penetración a la bola (30sg) | DIN 53457 | Mpa | 45 / 60 |
| Resistencia al impacto | DIN 53453 | kJ/m2 | No rompe |
| Coeficiente dinámico de fricción | N/mm2 | 0.29 | |
| Punto de Fusión | DIN 53736 | ºC | 128 / 133 |
| Temperatura de trasición Vitrea | DIN 53736 | ºC | -95 |
| Temperatura de servicio máxima puntual | ºC | 120 | |
| Temperatura de servicio máxima constante | ºC | 90 | |
| Conductividad térmica | W(km) | 0.35 / 0.43 | |
| Capacidad calorífica específica (a 23ºC) | 5(g.k) | 1.7 / 2 | |
| Coeficiente dilatación lineal (a 23ºC) | 105 1k | 13 / 15 |
