Bridging flocculation of PEI-functionalized latex particles using nanocrystalline cellulose

► Stable latex particles were produced grafted with linear polyethylene imine (PEI) chains and ethanolamine, which acts as a blocking agent. ► These particles can be flocculated by nanocrystalline cellulose (NCC). ► The aggregates can be broken up by adding salt, resulting in a restabilization of the suspension.