What is the difference between plastic PE and PP?

different ingredients

The main component of PP plastic is polypropylene.

The main component of PE plastic is polyethylene.

different characteristics

PP plastic: Strength, stiffness, hardness and heat resistance are better than low pressure polyethylene, and can be used at about 100 °C. plastic bag factory    ，Has good dielectric properties and high frequency insulation and is not affected by humidity

PE plastic: good elongation, tear resistance and impact resistance, high transparency, good heat sealing and processing performance.

different applications

PP plastic: mainly used in household appliances, injection parts, modified raw materials, daily direct injection products, pipes, etc.

PE plastic: It can be used for the fresh-keeping packaging of fresh fruits and vegetables, and it can also be used for the packaging of frozen food, but it should not be used for food packaging with oxygen barrier requirements alone.

like:
Precautions when using food composite packaging film    

Definition and basic principle of vacuum bag  

How to distinguish PE, PP, PO, PVC plastic bags?