There are 7 kinds of figures at the bottom of plastic bottles. Which is suitable for long-term use as a water cup?

- Jun 24, 2018-

Digital 1:PET material, low heat resistance, mineral water bottle generally use this material, can not be used repeatedly, so the GB stipulates that PET material can not be used in barreled water

Figures 2, 4: high and low pressure polyethylene are relatively safe, but the heat resistance temperature is low, and can not contain hot water.

Number 3: PVC, 100% containing plasticizer, that is, plasticizer, strongly not recommended to use, remember when a lot of cups are this kind of material, the taste of hot water is very bad smell;

Digital 5:PP, also known as polypropylene, is recommended for use. Many lunch boxes and infant bottles are used in this material, and the temperature is about 120 degrees

Digital 6:PS, polystyrene, very brittle material, easy to crack, solvent resistance is also poor, high temperature easy to decompose benzene substances, is not recommended;

Number 7: generally refers to PC material, that is polycarbonate, the international and domestic publicity is easy to precipitate bisphenol A, but the material transparency is excellent, toughness is excellent, high and low temperature is excellent, I personally think infant bottle is not suitable to use, but adult water cup and other products use, the national standard also has not made related restrictions.

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