The difference between PP/PU/PE

PP (polypropylene) is a polymer material with good heat resistance, acid and alkali resistance, corrosion resistance and mechanical strength, as well as good moldability and plasticity. PU (polyurethane) is an elastomer with good abrasion resistance, oil resistance and mechanical strength, as well as good ozone and UV resistance. PE (polyethylene) is a common plastic material with good corrosion resistance, acid and alkali resistance and mechanical strength, but also has good moldability and plasticity.

The advantage of PP is its good heat resistance and corrosion resistance, which can be widely used in chemical, medical, food and other industries. the advantage of PU is its good abrasion resistance and oil resistance, which can be widely used in shoe making, automobile, furniture and other fields. the advantage of PE is its good corrosion resistance and molding, which can be widely used in packaging, construction, agriculture and other industries.

The disadvantage of PP is its poor low temperature toughness and impact resistance, while vulnerable to ultraviolet light and oxidation. the disadvantage of PU is its relatively high price and yellowing under prolonged UV exposure. the disadvantage of PE is its low strength and abrasion resistance, while vulnerable to ultraviolet light and oxidation.