Top 5 Australian Innovators 2013 – Sri Bandyopadhyay

1 October 2013

Associate Professor Sri Bandyopadhyay has been recognised by Campus Review as one of the Top 5 Australian Innovators for 2013,  for his fly ash reinvention work.

“Sri Bandyopadhyay has found a way to make a cheap by-product of coal power attractive to many industries

A common waste material is being converted into engineering gold thanks to the research efforts of UNSW researcher Sri Bandyopadhyay.

For the past seven years, Bandyopadhyay has been working to promote the use of fly ash – a freely available by-product from coal-fired power stations – in Australia.

To make the fly ash more attractive to Australian consumers, Bandyopadhyay and his research team developed a technique to turn the powdery material from black to near white.”

The image above shows a typical neat virgin polypropylene tensile sample (0% fly ash) and 4 composites with near whitened fly ash in proportions such as 5, 10 30 and 40 weight %.

” ‘People call it a waste material. I do not like this notion,’ Bandyopadhyay said.

In fact, fly ash is a cost-effective alternative to calcium carbonate (mineral used as filler in plastics in huge quantities) and can be used to strengthen commercial polymers, such as plastics, ceramics, cement, potteries and even white paints.”

Click here to read the full Campus Review article of 27 August 2013.