Introduction To The Characteristics Of Impact Modifiers
According to a report by the American Plastics Industry Consulting Corporation, the global market demand for plastic impact modifiers in 2004 was 600,000 tons (approximately $1.5 billion in market value), among which styrene copolymers such as ABS, methyl methacrylate-butadiene-benzene Ethylene (MBS) has become the largest category of impact modifiers, accounting for about 45% of the market share, and acrylics accounted for nearly 30%; elastomers including EPDM and thermoplastic elastomers (TPE) account for about 10% of the market share; chlorinated polyethylene (CPE) ) Accounted for 10%, others accounted for 5%. It is predicted that between 2004 and 2009, the average annual growth rate of styrene impact modifiers will be less than 3%, while the average growth rate of other types will be 5%-6%. Since PVC is the largest used variety of impact modifiers, occupying about 80% of the volume, the increase in demand for PVC will also drive the demand for impact modifiers. Engineering plastic resins such as PC, polyamide (PA), polyester, etc. consume about 10% of impact modifiers. As the demand for engineering plastics is growing strongly, the consumption of impact modifiers is increasing. Polyolefin resin consumes about 10% of impact modifier. Experts pointed out that the development trend of impact modifiers in the future is better performance, cheaper price, faster action, improving the performance of the main material or making the components thinner under the premise of ensuring the performance. Among foreign companies, such as Arkema's Durastrength products can significantly improve the impact resistance of PVC. In addition, Compton, DuPont, Dow Chemical and other companies have launched their own suitable products.