PP (Polypropylene) can be used to make a special microwave oven lunch box. The microwave oven lunch box is made of this material, which is resistant to 130 ℃ high temperature and has poor transparency. This is a plastic box that can be put into the microwave oven and can be reused.
PP is polypropylene plastic, non-toxic, tasteless, and can be soaked in 100 ℃ boiling water without deformation and damage. Common acid and alkali organic solvents have little effect on it. It is mainly used for tableware.