Polystyrene foam is a material formed by foaming polystyrene with foaming agent at high temperature. After heating and molding, it can be made into disposable tableware, fresh-keeping tray, instant noodle bowl, hamburger box and other containers according to different foaming ratios. It can also be used as a shock-proof packaging pad, which is hard on the outside and tough on the inside and light in weight. But it is not very environmentally friendly, and it is being improved at present.
Expandable polystyrene = expandable foaming+polystyrene, that is, expanded polystyrene, and the plastic is called polystyrene EPS. It is called foam in Chinese mainland, polystyrene foam in China and Hongkong, and Julong in Taiwan Province Province. The names are different, but in fact the meaning is the same.
Why is foam called styrofoam? Styrofoam (foam) is an excellent shockproof packaging material with low price and wide applications, such as cushioning, heat preservation, heat insulation, sound insulation and vibration prevention, disposable lunch boxes made of foam, etc. However, if styrofoam is buried as garbage at will, it will be difficult to degrade even after a hundred years, and incineration will cause secondary public hazards, so if it is not necessary, try to reduce the use.