What are modified engineering plastics?

Modified plastics can be divided into chemical modification and physical modification. Chemical modification refers to the formation of functional polymers through chemical reactions such as block copolymerization, graft copolymerization, crosslinking and degradation, or the introduction of new functional groups on polymer molecular chains. Physical modification in principle does not occur chemical reaction, is mainly a physical mixing process. Sometimes the physical modification process is accompanied by chemical reactions. Physical modification can be divided into filling modification and blending modification. Filling modification and blending modification are the most widely used in the plastic processing industry. In recent years, with the progress and development of modification technology, chemical modification has been paid more and more attention