Thermal properties of polyethylene
Low glass transition temperature of polyethylene material for 125 ℃, but in a wide temperature range, can maintain its mechanical properties. Linear high molecular weight polyethylene having a melting point of balance 137 ℃, but is generally difficult to achieve the balance point, usually at the time of processing a melting point in the range of 132-135 ℃. Polyethylene ignition temperature is 340 ℃, auto-ignition temperature is 349 ℃, its dust ignition temperature is 450 ℃. Polyethylene melt index determined by their molecular size. Mixing of different molecular weight polyethylene material having a melt index according to certain rules whichever constant value.