Compared with polystyrene (PS), polyurethane (PU) and polyethylene (PE) foaming materials, the development of polypropylene (PP) foaming materials is relatively short. However, because of the PP foam has a superior performance and wide application prospects, especially in the market for high heat resistance and good environmental protection eligibility foaming material demand urgently, make its development is rapid, so since the 1970 s, many countries have invested on foaming EPP materials research and development, and has made certain progress. But because of the traditional PP foaming process performance is poorer, especially foamed PP sheet production technology is difficult, it is difficult to obtain high quality foam plastic products, so it was not until 1980, PP foam to realize industrialization. At present, only a few countries such as America, Italy and Japan can produce.

    The EPP foam particles are mostly done by batch foaming, due to the production process is relatively complex, high cost, the price is higher also, of course, the domestic market EPP parts is controlled in 120000 yuan/ton, the price of the EPP parts and European market price at about 20000 euros/ton. EPP's moulding process is similar to EPS (the process is mature), and despite such high prices, the EPP market is gradually expanding. Jess than plastic co., LTD in Japan last year (fy 2005) production and sales of more than 100000 tons of EPP foam particles and moulded products, mainly used in automobile insurance leverage core materials, etc. In 2009, deptle company established a production base of 6, 000 tons of EPP particles in jiangsu province, and completed the expansion of the second and third stage projects