Recent Developments in Polymeric Plasticizers for PVC

摘要

Polymeric plasticizers have been used as plasticizers for PVC applications for more than half a century. They are specialty plasticizers that are used when extraordinary migration and extraction resistance are required. Typically, these polymeric plasticizers are in the 1000 to 13,000 molecular weight range (MW). Polyesters are typically based on adipic acid, a handful of glycols or diols and alcohol and/or acid endcapped. There has been significant progress in the advancement of polymeric plasticizer technology to meet the needs of the changing marketplace. To illustrate these market needs and answer how they were addressed, two case studies will be presented. One illustrates the need of improved printability of plasticized vinyl and the other on the use of plasticizer blends for foam applications. These case studies discuss how the market needs were addressed by adjusting the nature of the polyester plasticizer composition.