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The Difference Between The PET Plastic Bottle And The PP Plastic Bottle

Apr 28, 2018

There are many materials for plastic bottles. The functions and characteristics of plastic bottles of different materials are different. Here is a comparison between PET plastic bottles and PP plastic bottles.

Characteristics: PE is soft and feels waxy. Compared with the same plastic, it is lighter in quality and has a certain transparency. The flame is blue when burning

Toxicity: nontoxic and harmless to the human body

Application of polypropylene (PP): microwave oven, tableware, basin, plastic barrel, thermos bottle shell, woven bag and so on.

Characteristics: high chemical stability, good hygienic property and high heat resistance. Microwave oven tableware can be marked with the word "PP" plastic products.

Toxicity: nontoxic and harmless to the human body.

The polymer can have three three-dimensional structures: isotactic, syndiotactic, random polypropylene, the former two can crystallize, and the latter can not.

Polyester (PET) applications: plastic beverage bottles, medicine bottles, cosmetic bottles, oil bottles, and all kinds of caps and thermal insulation covers.

Characteristics: good transparency, unbreakable, good chemical stability, suitable for packaging various liquid or solid medicines. It has a good shade for ultraviolet light.

Toxicity: nontoxic.




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