A novel graphene oxide/halloysite hybrid aerogel linked by glassy polymer

Abstract

In our previous research, origami graphene aerogel and halloysite aerogel were successfully prepared, and interesting results were also found in terms of structural self-reinforcement and stress to transfer behavior. As an aerogel, it is always the result of mechanical strength. Based on the previous research, we proposed the idea of ​preparing organic-inorganic hybrid aerogels using graphene oxide and halloysite. By using the glassy polymer Polymethylmethacrylate (PMMA) as a medium, graphene oxide (GO) and halloysite (HNTs) are connected to the aerogel structure. The microstructure and mechanical properties of the hybrid aerogel were studied. The results showed that a semi-organic semi-inorganic halloysite-graphene aerogel (HGA) with a three-dimensional network structures were successfully prepared. Its pore structure was mainly mesopores, and its thermal stability was improved. HGA had good mechanical properties, even if the number of cycles was as high as 50 times, the mechanical strength was still at a relatively high level. HGA contains organic and inorganic networks, and load to transfer is easier than graphene aerogel transfer.