Polypropylene

# We sell plastic raw material # Polypropylene

Polypropylene, abbreviated as PP, is a polymer made from propylene through a polymerization reaction. It is a white waxy material, transparent and light in appearance. Chemical formula is (C3H6)n, density is 0.89~0.91g/cm3, flammable, melting point is 164~170℃, softening at 155℃, use temperature range is -30~140℃. It is resistant to acids, alkalis, salt liquids and a variety of organic solvents below 80°C and can decompose at high temperatures and under the effect of oxidation. Polypropylene is a thermoplastic synthetic resin with excellent performance. It is a colorless and semi-transparent thermoplastic lightweight general-purpose plastic with chemical resistance, heat resistance, electrical insulation, high strength mechanical properties and good high wear resistance processing properties, etc. It is widely used in the production of clothing, blankets and other fiber products, medical equipment, automobiles, bicycles, parts, transport pipes, chemical containers, etc. It is also used in food and drug packaging.

Research on polypropylene production processes began in China in 1962. Starting from the 1980s, polypropylene has developed rapidly in China. China introduced some advanced technologies and production equipment for polypropylene production and established a number of large and medium-sized polypropylene production facilities, such as Yanshan, Yangzi and Liaoyang, and a large number of small bulk polypropylene production facilities were also built in various places and played a role in alleviating the contradiction between supply and demand. In 2012, China's PP production capacity reached 12.967 million tons. 2015, China's PP production capacity was 2013 million tons/year.

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