2022.01.12
With the development of chemical industry, polystyrene foam has been turned into a more promising market for building insulation materials from packaging materials and disposable tableware. The defoamed waste polystyrene foam is added with a certain dosage of low boiling point liquid modifier, foaming agent, catalyst and stabilizer. After heating, the polystyrene beads are prefoamed, and then rigid polystyrene foam plastic boards with fine closed pores are heated by heating. This kind of plate can be used alone, or it can be wrapped with thin aluminum plate after forming to make aluminum-plastic plate. Its heat preservation performance is very good. Through the actual use test of the house roof, there is no frost and condensation phenomenon, and the project cost can be reduced, and the construction operation is convenient. Therefore, in the northern heating area, the polystyrene foam insulation board produced by this method has wide application and good prospects for development.
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