In recent years, China actively promote energy conservation and environmental protection, vigorously develop energy-efficient buildings, so the polystyrene foam (EPS) industry has developed rapidly, as the current buffer material, its demand increased, the industry trend is getting better and better.
Chinese polystyrene foam production base is mainly concentrated in the northeast, Jiangsu and Zhejiang and Beijing, Tianjin, Hebei. The product qualified rate was 97.5%, 97.8% and 97.8%. The national supervision and spot check of molded polystyrene foam insulation for five times in 2007, 2008, 2010, 2011, and 2012, and the product qualified rate was 95.1%, 96.3%, 97.5%. Product quality is steadily, but there are still some problems. The main problems are concentrated in the apparent density, oxygen index, combustion classification.
When the density of polystyrene foam board is insufficient, if it is used for exterior insulation of building exterior wall, it will lead to its low tensile strength, and can not meet the bearing requirement of shearing strength and facing load of insulation system, easily led to lower insulation properties, increased moisture absorption, the impact of building insulation effect, polystyrene foam board will not achieve the role of building energy-saving insulation.
At present, Chinese production enterprises of polystyrene foam is about 2000, polystyrene foam production momentum is good, continuously improve the quality. But the number of large enterprises is small. With the increasing amount of waste Styrofoam, INTCO GREENMAX developed a professional polystyrene recycling machine.