With the development of chemical industry, styrofoam ball turned from the use as packaging material, disposable tableware and other market more promising field of building insulation materials. After the defoaming waste polystyrene foam plastics adding a certain amount of low-boiling liquid modifiers, blowing agents, catalysts, stabilizers and the like, and heating up by the pre-expanded polystyrene beads, and then heated in a mold prepared rigid polystyrene foam board having fine closed pores. This board can be used alone, but also in shaping and then with a thin aluminum cladding made ??of aluminum plate. Its good insulation properties, the roofs actual test results without frost and condensation, and can reduce the construction cost, easy construction operations. Therefore, in the northern heating areas, the law produced polystyrene foam insulation board with a wide range of uses and good prospects for development.
?With an appropriate modifier for polystyrene foam tiles modified, it can be prepared at room temperature quick-drying, water-resistant long time water emulsion waterproof coating. The process is simple, adjust the viscosity of water construction is also very convenient. The waterproof coating can replace the oil used in corrugated boxes moisture, it can also be used to waterproof fiberboard.
?Styrofoam ball is mainly used in the manufacture of fiber strength, pesticides, dyes, resins, metal surface rust, sunscreens, color film couplers and filters like other products. Waste foam by nitration, oxidation can be obtained. Use this method has the raw materials readily available, simple process, the advantages of higher value-added products, suitable for promotion in township enterprises. Polystyrene recycling industry can bring a lot of benefits to human.