The high melt strength polypropylene (HMSPP) industry has good profitability and the Chinese market still relies on imports.

Compared with European and American countries, my country’s HMSPP industrial development and application started relatively late and is still in the initial stage. Relevant production companies include Shanghai Petrochemical, Zhenhai Refining and Chemical, Sinopec, etc., and research institutions include the Institute of Chemistry, Chinese Academy of Sciences, Beijing Research Institute of Chemical Industry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, etc. In recent years, with the improvement of polymer processing technology and polymerization technology, my country’s HMSPP production capacity has improved. However, domestic HMSPP does not have advantages in quality, scale, and brand. HMSPP is still highly dependent on imports. Singapore’s TPC and South Korea’s LG Chemistry is the main supplier of HMSPP in my country.

High melt strength polypropylene (HMSPP) is a kind of polypropylene with long branched or slightly cross-linked structure. Generally, the melt strength is greater than 10cN. Melt strength is an important parameter for polymer melt ductility. Under the same melt index, the melt strength of HMSPP is much greater than the melt strength of ordinary polypropylene. As a high-end polypropylene special material, HMSPP has the characteristics of high melt strength, wide processing temperature range, high yield strength, and high melting point.

HMSPP has high melt strength and strain hardening phenomenon during melt stretching, which can significantly improve the defects of ordinary polypropylene during extrusion, foaming, thermoforming, blow molding, extrusion blowing, coating and other processing processes. At the same time, HMSPP It has a long branched chain structure. In the film blowing process, its branched chain structure can act as a nucleating agent, improve the light transmittance of the product, and reduce the haze of the product. HMSPP can be used to produce high-end foamed polypropylene, coated polypropylene and other products, which are widely used in automobiles, packaging, household appliances, films, medical equipment and other fields.

According to the “2021-2026 China High Melt Strength Polypropylene (HMSPP) Industry Market In-depth Research and Development Prospects Forecast Report》 shows that since the industrialization of HMSPP, the global HMSPP market demand has continued to grow due to its easy processing performance. At this stage, the global HMSPP market demand is around 250,000 tons/year. In the international market, HMSPP suppliers mainly include Borealis, Singapore TPC, South Korea’s Lotte Chemical, South Korea’s LG Chem, Japan’s JPP, France’s Total, Saudi Basic Industries, the United States’ ExxonMobil, Lyondellbasell, etc.