What kind of plastic cups should students buy? What kind of plastic cup is better?

1, PP plastic cup, drinking water is healthy. PP is a kind of polypropylene plastic, which is non-toxic and tasteless. It can be soaked in 100℃ boiling water without deformation or damage, and common organic solvents such as acid and alkali have little effect on it. Mostly used for tableware.

2.PE is a kind of polyethylene plastic with stable chemical properties. Usually used to make food bags and various containers, it is acid-resistant, alkali-resistant and salt-water solution-resistant, but it is not suitable for wiping or soaking with strong alkaline detergent. PS is a polystyrene plastic, which is easy to color and has good transparency. It is mainly used for manufacturing lampshades, toothbrush handles, toys and electrical parts. PVC is a kind of PVC plastic with bright color, corrosion resistance and durability. Because some toxic auxiliary materials such as plasticizer and anti-aging agent are added in the manufacturing process, food and medicine are generally not stored in its products.