Both extruded board and benzene board can be used, but both have their own advantages and disadvantages. Qualified products will not cause harm to human body in normal use. If it is used for home interior walls, it is recommended not to make board system; Both of them have poor fire protection performance and emit toxic gases when burning.
The requirements for auxiliary mortar are high (especially for extruded board, the mortar with poor bonding can't be bonded, and the mortar with poor plastering will be pulverized. Cracking, etc. ). The finished product is difficult to maintain, easy to crack, low strength and so on. There are few qualified products in the plate and mortar market. Pure polystyrene foam board is not toxic, and polystyrene foam snack box is not toxic, but it is required to be pure polystyrene.
Extended data:
XPS insulation extruded board for indoor use is introduced as follows:
Plastic additives should be added to polystyrene foam plastic board to improve some properties of polystyrene foam plastic board. Additives are not necessarily non-toxic. There are still a lot of waste plastics to be reused, and it is difficult to ensure non-toxicity. So be careful.
In the mid-1990s, it was widely rumored that polystyrene foam plastics (EPS) were toxic, especially polystyrene foam tableware. Once the polystyrene foam board is burned, it will emit a lot of toxic gases. Even in 1999, the use of foamed tableware was banned. EPS comes from petroleum products, and the sewage discharged in its production process can easily meet the discharge standard.
Phoenix. Com-"2065438+07 Top Ten Brands of Extruded Board in China" honor.
Baidu encyclopedia -XPS insulation board