Abstract
Plasticized PVC geomembranes have advantages over some other geomembranes, such as better resistance to differential settlement and puncture and significantly fewer field seams because PVC membranes can be factory-fabricated into large panels. Over time, plasticizers can mi grate from PVC geomembranes by contact with air, liquid and/or an absorbent solid material. This can result in reduced flexibility and, in extreme cases, noticeable shrinkage. 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 ensure long-term plasticizer retention in the PVC geomembrane.
| Original language | English |
|---|---|
| Pages (from-to) | 28-33 |
| Number of pages | 6 |
| Journal | Geotechnical Fabrics Report |
| Volume | 23 |
| Issue number | 2 |
| Publication status | Published - 2005 Mar 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Polymers and Plastics
Cite this
The influence of molecular weight on plasticizer retention. / Stark, Timothy D.; Choi, Hangseok; Diebel, P. W.
In: Geotechnical Fabrics Report, Vol. 23, No. 2, 01.03.2005, p. 28-33.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The influence of molecular weight on plasticizer retention
AU - Stark, Timothy D.
AU - Choi, Hangseok
AU - Diebel, P. W.
PY - 2005/3/1
Y1 - 2005/3/1
N2 - Plasticized PVC geomembranes have advantages over some other geomembranes, such as better resistance to differential settlement and puncture and significantly fewer field seams because PVC membranes can be factory-fabricated into large panels. Over time, plasticizers can mi grate from PVC geomembranes by contact with air, liquid and/or an absorbent solid material. This can result in reduced flexibility and, in extreme cases, noticeable shrinkage. 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 ensure long-term plasticizer retention in the PVC geomembrane.
AB - Plasticized PVC geomembranes have advantages over some other geomembranes, such as better resistance to differential settlement and puncture and significantly fewer field seams because PVC membranes can be factory-fabricated into large panels. Over time, plasticizers can mi grate from PVC geomembranes by contact with air, liquid and/or an absorbent solid material. This can result in reduced flexibility and, in extreme cases, noticeable shrinkage. 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 ensure long-term plasticizer retention in the PVC geomembrane.
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UR - http://www.scopus.com/inward/citedby.url?scp=17644391678&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:17644391678
VL - 23
SP - 28
EP - 33
JO - Geotechnical Fabrics Report
JF - Geotechnical Fabrics Report
SN - 0882-4983
IS - 2
ER -