It is understood that most of the polystyrene plastic are disposable, millions of tons of white garbage are disposed in nature, and neither decay to conversion, it has caused a serious environmental pollution, and is also a valuable waste of non-renewable resources, how effectively recycle the waste polystyrene foam has attracted the attention of national scientific research workers.
At present, the ways to recycle waste polystyrene foam are broken, melted and recycled into material particles such as ps pellets, and then add the corresponding non-adjuvant, processed into another material. For the above-mentioned method of recycling is generally the first practice is to crush the plastic foam through the crushing, melting, drawing, cutting. But in the production of such plastic particles will be the method of raw material crushing is not complete, melting temperature control is uneven, and can not avoid mixed impurities in the raw materials, which led to very low production efficiency, and because the presence of impurities which can lead to equipment damage.
Polystyrene plastic the situation of one-time use of to the environment caused a great burden, so the new way of recycling has been imminent.
Polystyrene plastic refers to the polymer synthesized from the styrene monomer by free radical addition polymerization. It is a colorless, transparent thermoplastic with a glass transition temperature above 100℃ and is therefore often used to make disposable containers that require temperatures that require boiling water, as well as disposable foam boxes. Because of its good water resistance, insulation, insulation, low moisture absorption and strong seismic strength, and its light, strong, easy to shape, low price, is widely used and packaging, moisturizing, waterproof, separated Heat, shock, decoration, catering and other fields, penetrate into the various sectors of the national economy.