GSP-142: PLASTICIZER RETENTION IN PVC GEOMEMBRANES
removed from PVC geomembranes by contact with air, liquid, and/or an absorbent solid material . Plasticizer loss reduces the flexibility of PVC geomembranes and in extreme cases results in noticeable shrinkage . In this paper, the mechanisms and factors influencing plasticizer retention are discussed and rec ommendations for
Plasticizer Retention in PVC Geomembranes - ResearchGate
Plasticizers are used to make PVC flexible so it can be used as a geomembrane for containment purposes. Plasticizers can migrate from PVC geomembranes over time because of contact with...
Plasticizer retention in PVC geomembranes — University
Plasticizers are used to make PVC flexible so it can be used as a geomembrane for containment purposes. Plasticizers can migrate from PVC geomembranes over time because of contact with air, liquid, and an absorbent solid material. Plasticizer migration can reduce the flexibility of PVC geomembranes.
PLASTICIZER MOLECULAR WEIGHT AND PLASTICIZER RETENTION IN PVC
The mechanisms controlling plasticizer retention in contact with these three media, air, liquid, or a solid, are described below. 2.1 Plasticizer retention in air Volatile loss or...
The influence of molecular weight on plasticizer retention
While this is true, sufficient amounts of plasticizer are retained by the PVC material after migration if a minimum molecular weight is used in the plasticizer. For this reason, the PVC Geomembrane Institute (PGI) has developed the PGI-1104 Specification, which requires an average plasticizer molecular weight greater than or equal to 400 to
