PP (Polymer Polypropylene) refers to polypropylene in general, and is a thermoplastic resin polymerized from propylene. Low thermal deformation temperature (100℃), low transparency, low gloss and low rigidity, but strong impact strength.
PE (polyethylene for short) generally refers to polyethylene, which is a thermoplastic resin polymerized from ethylene. Odorless, non-toxic, waxy, excellent low temperature resistance (the lowest service temperature can reach-100 ~-70℃) and good chemical stability.
Extended data:
Common materials for chopping boards:
Wood, bamboo, plastic, glass, high hardness rice husk. Generally, household chopping boards are made of oolong wood (commonly known as ironwood) or bamboo chips, which are popular because they are strong and do not peel off.
Plastic cutting boards are mostly made of polypropylene and polyethylene, which is not suitable for cutting some greasy food, otherwise it is not easy to clean.
Natural rubber wood chopping block, made of natural rubber wood, has moderate hardness, and is not easy to hurt knives, deform and burst.
References:
Polypropylene _ Baidu encyclopedia
Polyethylene _ Baidu encyclopedia