What exactly is PE?

What exactly is PE?

PE tarpaulinIt is a tarpaulin made of chemical raw materials such as polyethylene. For an explanation of PE, please see below:
PE:Polyethylene PE resin is non-toxic and odorless white particles or powder. It looks milky white and feels like wax. It is flammable with an oxygen index of only 17.4%. There is low smoke and dripping when burning, and the flame is yellow at the top and bottom. Blue, with paraffin smell; low water absorption

Polyethylene PE
Polyethylene PE molecules contain a small amount of double bonds and ether groups, so PE has poor weather resistance. Sun and rain will cause aging, so antioxidants need to be added. , light stabilizer to improve the thermal stability of polyethylene PE in inert gas, and the decomposition temperature can reach more than 300°C; however, when the temperature exceeds 50°C in a heated state, hot oxygen will cause a degradation reaction, so it is necessary to add anti- Oxygen is used to improve it, such as main antioxidant 1010 and auxiliary antioxidant 168; PE’s heat resistance in the air is not good, which improves with the increase of molecular weight and crystallinity; but PE’s low temperature resistance is very good, Its low-temperature embrittlement temperature is below -50°C, and can reach as low as -140°C as the molecular weight increases; PE has a high thermal conductivity.

(Part of the above content comes from “Baidu Encyclopedia”)

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