PET laminated packaging steel - Environmental stress cracking
The market for polymer laminated packaging steel is currently growing due to the improved barrier performance, reduced processing by the can maker and increasingly as a result of environmental concerns associated with solvents and health concerns with bisphenol A (BPA), a major component in epoxy phenolic lacquers. Despite the benefits of these laminated systems a concern exists around environmental stress cracking/ crazing (ESC) of the polymer, a phenomenon that accounts for 15% of bulk polymer failures.
Researchers at Swansea University in Wales examined the effect ESC has on the corrosion performance of Electro Chromium Coated Steel (ECCS) laminated with PET (ECS Meeting Abstracts).
Click here for the abstract.
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