What's the difference between PP PE? Which is better, rotational molding or blow molding or injection molding?

The density of PP is less than that of PE;

In terms of mechanical strength, PP is higher;

But flexibility, impact resistance and PE are better;

If the film is made, the transparency of PP is better than that of PE, but the sealing temperature and heat sealing strength are better.

In addition, in terms of temperature resistance, PP is also higher than PE, and generally PP can withstand pasteurization temperature.

There is no better process than that, depending on the product and demand.

Zhongshan Polima Plastic Rolling Factory passed by ~ ~