Summary for polyaniline coating on tinplate Discussion
Polyaniline coating on tin coated sheets is technically possible, but the discussion suggests it may not be the most practical choice for can manufacturing. Swati Sharma asked whether polyaniline could be used on tincoated steel sheets for cans. In reply, the answer notes that polyaniline is one of the first conducting polymers and can be electrodeposited onto tinplate. However, the responder questions the need for it, pointing out that it is expensive and that, while it can help inhibit corrosion of tinplate, there are much cheaper coating systems available. The advice is essentially to justify the application before choosing this material, and the responder asks the original poster to explain the specific needs and reasons for considering it.
Q. Can polyaniline coating be used on tincoated steel sheets used for manufacturing cans?
Swati Sharma
tinplate company – Jamshedpur, Jharkhand, India
2004
A. Polyaniline is one of the first “conducting polymers” to be discovered. It can be electrodeposited onto tinplate, but my first question would be “why?”. It is expensive and although it can be used to inhibit corrosion of tinplate, there are much cheaper systems. Perhaps the originator would like to expand on his/her needs and reasons?
Trevor Crichton
R&D practical scientist
Chesham, Bucks, UK
2004