Plastic tableware is mainly made of the following materials:
1, melamine plastic, often used to manufacture bowls, dishes, chopsticks, spoons and other table utensils. It to melamine, formaldehyde resin as the main raw material. Appearance and feel like porcelain, acid and alkali resistance, surface hardness and impact strength are relatively high, long service life. The melamine in the inferior melamine tableware, if not completely polymerized, can also be partially released into the food.
2, false melamine tableware, made of urine formaldehyde resin or phenolic resin, its appearance and authentic melamine tableware is very similar, but contains a high level of formaldehyde, after heating, formaldehyde is easy to precipitate, great harm to health.
3, high density polyethylene (HDPE), suitable for food and medicine bottles, cleaning products and bath products, shopping bags, garbage cans.
4, polyethylene terephthalate grease (PET), made of ethylene collection. Commonly used for mineral water bottles, cola bottles, juice bottles and so on.
5, polypropylene (PP), made of propylene polymerization, transparency is better than polyethylene, harder than polyethylene, restaurants packaging boxes are mostly it, made of plastic boxes can be put into the microwave.
6, polystyrene (PS), made of styrene polymerization, commonly used in the bowl of instant noodle boxes, fast-food boxes. It is heat resistant and cold resistant, but too high temperature will release harmful substances, so can not be put into the microwave heating, and try not to use it to hold hot food, at the same time can not contain strong acid (such as fruit juice) and strong alkaline substances, otherwise it will release styrene and auxiliary materials.
7, polycarbonate (PC), it is synthesized with bisphenol A and diphenyl carbonate as raw materials, has excellent impact toughness and mechanical strength, and transparency is very good, often used in the manufacture of water bottles, cups, bottles and so on. However, bisphenol A is easy to leak out and harm human health.
