Webinar Description

The periodic table of geomembranes is based loosely the periodic table of elements.  It is a tabular display of the geomembrane types, which are arranged by chemical family, degree of modification, and recurring chemical and mechanical properties.

The structure of the table shows periodic trends. The rows of the table, called periods have polyolefins and vinyl polymers on the left and more specialised liners on the right. The columns, called groups, contain liners with similar chemical resistance and chemical properties but properties improve moving down the column.

The organization of the periodic table of liners can be used to derive relationships between the various geomembrane properties, and also to predict the durability and stability of the liners.  The periodic table of liners provides a useful framework for understanding the range of available geomembranes and their performance properties. The webinar will end with a Question and Answer session.

About the Presenter

Dr John Scheirs
ExcelPlas

Dr John Scheirs is a Principal Consultant at ExcelPlas Polymer Testing Services, Specializing in Testing and Analysis of Polymers and Geosynthetics.  John is the author of the leading book on polymer failure entitled
‘Compositional and Failure Analysis of Polymers’ published by Wiley in England (2000); and also the author of the leading book on plastics recycling entitled ‘Polymer Recycling: Science, Technology and Applications’ published by Wiley in England (1998). He holds a B.Sc. (Hons.), Applied Chemistry, University of Melbourne, 1987 and Ph.D., Applied Chemistry, University of Melbourne, 1991.

John has over 50 scientific publications in international journals as well as six encyclopaedia chapters on polymers, plastic recycling and coatings. He is a member of the editorial board of the International Journal ‘Polymer Degradation and Stabilization’, Elsevier Scientific, Netherlands.