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Alternative stress cracking surfactants identified for HDPE geomembrane testing
February 9th, 2022
The Australian geosynthetics testing company ExcelPlas discusses the search for alternative stress cracking surfactants to the pollutant Igepal CO-630. Photograph courtesy Solmax Geosynthetics testing company ExcelPlas in Highett, Victoria, Australia, has identified two alternative stress cracking surfactants for high-density polyethylene (HDPE) geomembranes. Igepal™ CO-630, the non-ionic surfactant used in high-density polyethylene (HDPE) stress cracking bath, […]
An open solicitation to join in a round-robin effort to find a substitute for Igepal CO-630
June 1st, 2021
Improved stress-cracking resistance in high-density polyethylene (HDPE) geomembranes has been a quest of our industry and a hot research topic for years. The Geosynthetic Institute (GSI) has been working in this area since the mid-1980s. The GRI GM13 standard specification for HDPE geomembranes has moved the ASTM D5397 (appendix) single point notch constant tension load […]