Polymer plasticizer is all that can add in plastic,increase in the plasticity of ,plastic plasticzers,The main function of the pvc plasticizer is to weaken the bond between the polymer molecules, increases the mobility of the polymer molecular chain, reduces the crystallinity of the polymer plasticizers molecular chain, increases the polymer plasticizer plasticity, performance for the polymer hardness, modulus, softening temperature and brittle temperature, while elongation, bending flexibility and flexibility to improve.Normal polymer plasticizer inluding DOP,DBP,DOTP,TOTM,DOA,DOS,ESBO,CPW and so on mainly used on soft plastics.