selection of nanoclay

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barbara klieforth
selection of nanoclay

Very elegant work! This is just the kind of material science research needed for plastic waste reduction solutions. The use of a clay component, even as a nanoclay, seems counter-intuitive, how did you happen to select it?

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Sna

Thank you for your question. I assume you are interested in types of nanoclays. There are many types of nanoclays such as montmorillonite-based, kaolinite-based and halloysite-based nanoclay. Each type serves a different purpose but the most common one is a montmorillonite nanoclay. Montmorillonite has a plate-like particle and a single particle has approximately 1 nm thickness. Due to the geometry of the particle, it has a very large surface area that interacts with more adjacent polymer molecules.
We use a commercially available nanoclay supplied by Sigma-Aldrich.

Sna

I now see and thank you for your updated question. In fact, nanoclay reinforcement has a long history. It was firstly developed by the Toyota research group in the 1980s. They found that it reinforces the yield strength of polymers. Since then, many researchers have studied other properties improved by nanoclay. One of the properties we focus on is barrier resistance. Due to the shape and property of nanoclay (e.g. plate-like and impermeable), we assume nanoclay may improve chemical resistance which is essential for pipe materials in aggressive chemical environments.