ABS plastic is composed of three chemical monomers acrylonitrile,butadiene and styrene. Each monomer has different characteristics:acrylonitrile has high strength,thermal stability and chemical stability.Butadiene has the properties of toughness and impact resistance. Styrene has easy processing, high finish and high strength. In terms of morphology,ABS is a non-crystalline material.The polymerization of the three monomers produces a terpolymer with two phasesone a continuous phase of styrene-acrylonitrile and the other a dispersed phase of polybutadiene rubber.The properties of ABS plastic material are mainly determined by the ratio of three monomers and the molecular structure in the two phases.
