PE is divided into two major groups which are ultra high molecular weight PE
and low-medium molecular weight PE. Low-medium molecular weight PE is divided
into subgroups according to their densities. Materials which are under those
subgroups have molecular weight around 100.000 and in daily life, they are used
as nylon bag, serum cover. Their row material is produced in Turkey.
ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE (UHMW-PE)
As the molecular weight of the material increases, mechanical properties such
as wear resistance also increase. Due to this property it has many advantages
compared to other groups of PEs. We can divide PE into two groups whose row
material are not produced in Turkey:
a) High Molecular Weight Polyethylene: PE300 and PE500. They have
molecular weight of 300.000 and 500.000.
b) Ultra High Molecular Weight Polyethylene: PE1000. It has molecular
weight of 4.500.000 POLYETHYLENE PROPERTİES UHMW-PE has high impact resistance,
high wear resistance and low fraction coefficient. Due to those properties it is
used in:
- Bottle filling machines as chain bed
- Wear plate
- Coal and mining industry as bunker cover
- Filter press plate
- Pier fender
- Chain gear
- Valve ring
- Truck dumper bed