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Plastic is a kind of high molecular artificial material. With the progress of science and technology, various high-quality new materials gradually appear, and the plastic materials constituting the water cup include PP (polypropylene), tritan (copolyester), PC (polycarbonate), etc.
① PP material
PP material is a kind of food grade safety plastic material, also known as polypropylene. It does not contain bisphenol A, which is a harmful component. It has the characteristics of non-toxic and tasteless, safe and environmental protection, light weight, fall resistance and good toughness. More importantly, the price is relatively cheap, so it has a wide audience.
② PC material
PC material is a kind of thermoplastic resin, which has excellent electrical insulation, extensibility and chemical corrosion resistance. However, when heated, the cup made of this material can easily release the toxic substance bisphenol A, which is harmful to human body. Therefore, when using this kind of water cup, it is forbidden to heat and sun.
③ Tritan material
Tritan material is a new type of safe and non-toxic material. It is also certified by FDA as the designated material for infant products in Europe and America. And it also has excellent corrosion resistance and high temperature resistance, which is very durable
