What materials are currently used for plastic water cups on the market, such as Tritan, PP, PPSU, PC, AS, etc. PS is rarely mentioned as a common material for plastic water cups. I also came into contact with the purchasing needs of a European customer. The editor had access to PS materials. Many friends who are engaged in foreign trade know that the entire European market, such as Germany, is enforcing plastic restriction orders. The reason is that plastic materials are not easy to decompose and recycle, and many plastic materials contain bisphenol A, which can cause harm to the human body after being made into water cups. For example, PC materials, although better than AS and PS in some performance aspects, are banned from the European market for the production of water bottles because they contain bisphenol A.
PS, in layman’s terms, is a thermoplastic resin that is colorless and transparent with high transmittance. Compared with the plastic materials mentioned above, its low material cost is its advantage, but PS is fragile and has poor toughness, and this material contains double Water cups made of phenol A and PS materials cannot be filled with high-temperature hot water, otherwise they will release bisphenol Aharmful substances.
AS, acrylonitrile-styrene resin, a polymer material, colorless and transparent, with high transmittance. Compared with PS, it is more resistant to falling, but it is not durable, especially not resistant to temperature differences. If you quickly add cold water after hot water, the surface of the material will If there is obvious cracking, it will also crack if placed in the refrigerator. It does not contain bisphenol A. Although filling it with hot water will cause the water cup to crack, it will not release harmful substances, so it can pass EU testing. Material cost is higher than PS.
How to judge from the finished product whether the water cup is made of PS or AS material? Through observation, it can be seen that the colorless and transparent water cup made of these two materials will naturally show a blue effect. But if you want to specifically determine whether it is PS or AS, you need to use professional testing equipment.
Post time: May-28-2024