With the development of the chemical industry, polystyrene foam has been turned into a more promising field of building insulation materials for use as packaging materials, disposable tableware, and the like. The defoamed waste polystyrene foam is added to a dose of a low-boiling liquid modifier, a foaming agent, a catalyst, a stabilizer, etc., and the polystyrene beads are pre-expanded by heating, and then heated in a mold. A rigid polystyrene foam board having fine closed pores was obtained.
The plate can be used alone or after being molded and then coated with a thin aluminum plate to form an aluminum composite panel. The thermal insulation performance is very good. It is tested by the actual use of the roof of the house. The result is no frosting and condensation, and the construction cost can be reduced, and the construction operation is convenient. Therefore, in the northern heating area, the polystyrene foam insulation board produced by the law has wide application and good development prospects.
Preparation of waterproof coatings from waste foam
The water-milk waterproof coating can be prepared by modifying the waste foam with a suitable modifier to prepare a water-milk waterproof coating which is usually dried at a constant temperature and has a long water resistance. The method is simple in process, and it is convenient to adjust the viscosity by water. The waterproof coating can be used for corrugated boxes instead of moisture-proof oil, and can also be used for waterproofing fiberboard.
How to recycle waste foam properly and efficiently?
GREENMAX styrofoam densifier and styrofoam compactor are professional recycling equipment for recycling foam.The foam recovery rate is 100%.Abandoned foam is a treasure, a resource that has been misplaced.