Dai is the Deputy Course Director for the MPhil in Engineering for Sustainable Development. He holds a Masters Degree in Manufacturing Engineering from the University of Cambridge and earned his PhD researching novel polymer recycling processes. The project investigated the processing of thermally sensitive and mixed materials into a potentially useful form, and identifying possible applications for the resultant materials. Dai's research interests are in the general area of industrial sustainability, understanding how manufacturers (and related organisations) can bring sustainability into their operations and decision making, whilst accelerating the shift towards more sustainable outcomes through industrial activity. This has included work on how manufacturers can improve their non-labour productivity without changes to product and process, how sustainability factors can be brought into the design process and supplier relationships, and how manufacturers might support the transition towards systems which can support global needs, whilst remaining within planetary limits.