Mr. Meizhao Han joined Prof. Leng’s research group as a Joint PhD student from Harbin Institute of Technology in August 2021. He obtained his master’s degree in Chemical Technology from Guangxi University in 2019. His PhD research focuses on the performance and working mechanism of oil-absorbing organogel as a novel asphalt binder modifier. His research interests include conventional asphalt modifiers such as SBS, rubber, fibre, epoxy resins and polyurethanes and developing novel modifiers, e.g. graphene, carbon nanotube and organogel.